| Date | Title | Provider |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
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|
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|
KMZ
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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or
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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|
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or
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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|
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or
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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|
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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|
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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|
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Image
or
Feature
| More Options...
| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
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|
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|
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Image
or
Feature
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
Spreadsheet
|
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|
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Image
or
Feature
| More Options...
| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
Spreadsheet
|
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|
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Image
or
Feature
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| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
Spreadsheet
|
GeoJSON
|
Add Mapservice to ArcMap:
Image
or
Feature
| More Options...
| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
Download
|
Preview
|
KMZ
|
Spreadsheet
|
GeoJSON
|
Add Mapservice to ArcMap:
Image
or
Feature
| More Options...
| Bat Conservation International |
| 2003 |
This map layer portrays our current understanding of the distributions of
United States and Canadian bat species during the past 100-150 years.
Specimen and capture data were obtained from a variety of data sources,
including U.S. State natural heritage programs, Canadian conservation data
centers, published literature, unpublished reports, museum collections,
and personal communications from university, federal, State and local
biologists. Records are all specimen, roost, capture, or positive visual
identification-based; no acoustic-only identifications were used for this
map layer. This map layer reflects minor changes to the July, 2002, data
set.
Metadata
|
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|
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|
KMZ
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| Bat Conservation International |
| 2006 |
The Eastern Brook Trout Joint Venture (EBTJV) is the nation's first pilot project under the National Fish Habitat Initiative, which directs locally-driven efforts that build private and public partnerships to improve fish habitat. The long-term goals of the EBTJV are to develop a comprehensive restoration and education strategy to improve aquatic habitat, to raise education awareness, and to raise federal, state and local funds for brook trout conservation.
In 2005, in recognition of the need to address regional and range-wide threats to brook trout, a group of public and private entities formed the EBTJV to halt the decline of brook trout and restore fishable populations. The group spearheaded a range-wide assessment of brook trout populations and threats to brook trout and brook trout habitat in the Eastern United States (report forthcoming). Seventeen states are currently drafting strategies to prioritize policy changes and on-the-ground actions to improve water quality and restore brook trout habitat and populations in their individual state using locally-driven, incentive-based, and non-regulatory programs.
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| Eastern Brook Trout Joint Venture |
| 2022 |
“Pennsylvania’s Best Fishing Waters” program identifies proven waters for specific species. This listing includes suggestions for distinct species within PA Streams.
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| Pennsylvania Fish and Boat Commission |
| 1998 |
Historical listing (1975-1995) of Pennsylvania fish species occurrences, as documented at 10,780 sampling points on streams and rivers throughout the state. Accessory information, such as type of sampling gear used and scientific names, are included. Threatened and endangered species, however, have been removed from the database for protection purposes. (If you require information concerning the distribution of Threatened and Endangered species in Pennsylvania, contact Andy Shiels at the PA Fish and Boat Commission.)
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| Pennsylvania Fish and Boat Commission |
| 2017 |
The Fish & Boat Commission operates fifteen (15) state fish hatcheries. Northern hatcheries (north of I-80) primarily culture warm/coolwater fish, while southern hatcheries (south of I-80) primarily culture trout. This GIS layer contains the locations of these hatcheries.
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| Pennsylvania Fish and Boat Commission |
| 2022 |
Many streams, lakes, ponds, and reservoirs are officially classified as "approved trout waters." This means that these waters contain significant portions that are open to public fishing and are stocked with trout. The waters in this layer are lakes (not flowing waters) classified as "approved trout waters" and these are open to trout harvest during the "extended season" (see Commonwealth Inland Waters). Unlisted tributary streams (those not included in this list of "approved trout waters") are not open to harvest of trout during the "extended season." Only approved trout waters and all waters downstream of approved trout waters are open during this period. Spearing fish is not permitted in any of these waters at any time of the year.
These waters are closed to all fishing (including taking of minnows) from March 1 to 8 a.m. on the opening day of the trout season. Some of these waters have been included in the Early Season Trout-Stocked Waters Program and are open from March 1 through March 31. A person shall be deemed to be fishing if he or she has in possession any fishing line, rod, or other device that can be used for fishing while on or in any water or on the banks within 25 feet of any water where fishing is prohibited.
Check with the nearest Fish & Boat Commission office if there is any question about whether or not a water area is "approved."
This layer is current through the new fishing regulations released December of 2009 for the 2010 fishing season.
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| Pennsylvania Fish and Boat Commission |
| 2022 |
Many streams, lakes, ponds, and reservoirs are officially classified as "approved trout waters." This means that these waters contain significant portions that are open to public fishing and are stocked with trout. The waters in this layer are flowing waters (not lakes) classified as "approved trout waters" and these are open to trout harvest during the "extended season" (see Commonwealth Inland Waters). Unlisted tributary streams (those not included in this list of "approved trout waters") are not open to harvest of trout during the "extended season." Only approved trout waters and all waters downstream of approved trout waters are open during this period. Spearing fish is not permitted in any of these waters at any time of the year.
These waters are closed to all fishing (including taking of minnows) from March 1 to 8 a.m. on the opening day of the trout season. Some of these waters have been included in the Early Season Trout-Stocked Waters Program and are open from March 1 through March 31. A person shall be deemed to be fishing if he or she has in possession any fishing line, rod, or other device that can be used for fishing while on or in any water or on the banks within 25 feet of any water where fishing is prohibited.
Check with the nearest Fish & Boat Commission office if there is any question about whether or not a water area is "approved."
This layer is current through the new fishing regulations released December of 2009 for the 2010 fishing season.
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| Pennsylvania Fish and Boat Commission |
| 2023 |
Many streams, lakes, ponds, and reservoirs are officially classified as "approved trout waters." This means that these waters contain significant portions that are open to public fishing and are stocked with trout. The waters in this layer are flowing waters (not lakes) classified as "approved trout waters" and these are open to trout harvest during the "extended season" (see Commonwealth Inland Waters). Unlisted tributary streams (those not included in this list of "approved trout waters") are not open to harvest of trout during the "extended season." Only approved trout waters and all waters downstream of approved trout waters are open during this period. Spearing fish is not permitted in any of these waters at any time of the year.
These waters are closed to all fishing (including taking of minnows) from March 1 to 8 a.m. on the opening day of the trout season. Some of these waters have been included in the Early Season Trout-Stocked Waters Program and are open from March 1 through March 31. A person shall be deemed to be fishing if he or she has in possession any fishing line, rod, or other device that can be used for fishing while on or in any water or on the banks within 25 feet of any water where fishing is prohibited.
Check with the nearest Fish & Boat Commission office if there is any question about whether or not a water area is "approved."
This layer is current through the new fishing regulations released December of 2009 for the 2010 fishing season.
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| Pennsylvania Fish and Boat Commission |
| 2023 |
This layer contains flowing waters from the Pennsylvania Fish and Boat Commission Fisheries Resource Database that support naturally reproducing populations of trout. A wild trout stream section is a biological designation that does not determine how it is managed, therefore, these streams may also be stocked with hatchery trout by the Commission.
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| Pennsylvania Fish and Boat Commission |
| 2019 |
This layer contains flowing waters in Pennsylvania that support naturally reproducing populations of trout WITH Tributaries that are NOT Commission Approved Wild Trout Waters. Attibute column named Wildtrouts will show if a polyline represents a Commission Approved Wild Trout with an entry of Listed or will have Tributary indicating water is a tributary to a wild trout water. A wild trout stream section is a biological designation that does not determine how it is managed, therefore, these streams may also be stocked with hatchery trout by the Commission. This GIS layer matches the list available on the PFBC web site (excluding Tributaries) at https://www.fishandboat.com/Fish/PennsylvaniaFishes/Trout/Documents/trout_repro.pdf. Also Interactive ArcGIS MAp at https://pfbc.maps.arcgis.com/apps/webappviewer/index.html?id=65a89f6592234019bdc5f095eaf5c6ac
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| Pennsylvania Fish and Boat Commission |
| 2023 |
This layer contains flowing waters from the Pennsylvania Fish and Boat Commission Fisheries Resource Database that will be stocked with trout in 2017.
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| Pennsylvania Fish and Boat Commission |
| 2020 |
Boundary defines the elk managment area boundary and surrounds the elk managment or hunt zones in Pennsylvania.
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| Pennsylvania Game Commission |
| 2020 |
Boundarires used to manage and regulate harvests of elk populations according to specific areas in Pennsylvania. The elk zones are managed according to the various subpopulations amoung the herds in Pennsylvania
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| Pennsylvania Game Commission |
| 1994 |
Part of the Pennsylvania Gap Analysis Project the Breeding Bird Atlas database indicates bird species and nesting behavior of known birds species in Pennsylvania. The database is organized into two primary segments; the block and the species lists (data). Blocks are defined by a code for the USGS topographic map, and the block number. All records are organized by the Atlas region. Various attributes of the Atlas block are incorporated, including geographic features (physiographic locations), effort (hours of fieldwork). The species segment, being replicated the full 320,000 times, was kept to a minimal size, and lists only the species and breeding code, the year and comment. Evidence of birds nesting within an Atlas block was recorded with a set of codes that describe behavior and physical evidence of nesting. These codes are divided into four hierarchical categories, three of which indicate breeding. "Observed," "Possible," "Probable," and "Confirmed" breeding codes represent increasing evidence that nesting occurred within the block a species was recorded. "Probable" and "Confirmed" categories were further segregated into hierarchical codes that represent individual breeding behaviors or physical evidence of nesting. A description of breeding codes may be provided upon request. All of Pennsylvania's 4,928 atlas "blocks" were surveyed, with an average of 65 species per block recorded. A total of 188 breeding species were documented statewide. Data catalogued geographically by atlas "block," USGS 7.5 minute quadrangle, county, and physiographic province. Species files include political status designation and a number of life-history characteristics.
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| Pennsylvania Game Commission |
| 2016 |
Twenty years after the first Atlas of Breeding Birds in Pennsylvania was published, the Second Atlas of Breeding Birds in Pennsylvania brings our knowledge of the state’s bird populations up to date, documenting current distribution and changes in status for nearly two hundred breeding bird species. More than two thousand dedicated birdwatchers completed surveys of birds across the state from 2004 to 2009. The data amassed reveal the distribution of each species and show changes in distribution since the publication of the first Atlas. The core results of the project are the distribution maps. In fact, up to three maps per species show in fine detail the current distribution of all breeding birds based on the second Atlas, changes in distribution since the first Atlas, and, for more than one hundred species, their density across Pennsylvania.The field project was based at Powdermill Nature Reserve, environmental research center of the Carnegie Museum of Natural History, in Rector, Pennsylvania. Bob Mulvihill and Mike Lanzone were project co-coordinators. Following the recommendations of the North American Ornithological Atlas Committee, the basic survey unit was the “block,” defined as one-sixth of a standard U.S. Geological Survey 7.5-minute topographic map, of which 4,937 were identified for survey coverage. Local coordination was provided by volunteer Regional Coordinators, who provided the foundation for organizing fieldwork. Eventually, 83 individuals served as Regional Coordinators (see the list under the Credits tab).Breeding bird atlases employ a set of codes to record the behaviors associated with nesting activity, ranging from the simplest detection by sight or sound, through confirmation of active nests and fledged young. Birds observed in breeding habitat, and within their particular breeding season, were placed in one of four categories based on breeding evidence — observations outside breeding habitat, or Possible, Probable, or Confirmed breeding — with a two-letter code used for confirmed breeding evidence and single letter codes for all other categories (See Project Methods – Breeding Codes). The second Atlas did not recommend undue effort to confirm breeding of common species, because it was believed that the field time could be better spent compiling species lists from multiple blocks. Obtaining confirmed breeding evidence was stressed for species identified in a particular conservation or priority category or for species simply rare or unexpected within the block.
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| Pennsylvania Game Commission |
| 2012 |
Pennsylvania bear harvest by county boundary 2003 - 2010
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| The Pennsylvania State University |
| 2010 |
This dataset is intended to illustrate the potential for biofuel production in the Chesapeake Bay, in a manner that does not compete with current food or fiber production. This data was used in support of a Chesapeake Bay Commission report titled: "Chesapeake Biofuel Policies: Balancing Energy, Economy and Environment" published in 2010.
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| The Pennsylvania State University |
| 2010 |
This layer shows potential land area for the production of biofuel feedstocks, such as winter barley, winter rye and switchgrass. Areas and corresponding crop production totals are aggregated by HUC6 boundaries for the Chesapeake Bay.
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| The Pennsylvania State University |
| 2010 |
Pennsylvania deer harvest by county boundary 2003
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| The Pennsylvania State University |
| 2012 |
Pennsylvania deer harvest by Wildlife Management Units 2004 - 2012
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| The Pennsylvania State University |
| 1996 |
Boundaries of fish hatcheries on 1:24,000 USGS topographic maps,
locations verified from the National Park Service list.
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| The Pennsylvania State University |
| 1996 |
Boundaries of National Wildlife Preserves in Pennsylvania.
Boundaries were provided by the United States Department of the Interior,
National Fish and Wildlife Service. Boundaries were digitized from delineations
on 1:24,000 USGS topographic maps.
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| The Pennsylvania State University |
| 2004 |
This Website provides an interface for PA Breeding Bird Atlas staff and volunteers to find survey blocks, enter their findings and view results. I developed the component with which users can view a map of a block and print a high-quality PDF map. To print a map, enter the site and click the "Register" link on the left side of the window. Then click the "View Regions & Blocks" link, select a block, click its "Block Map" tab and choose whether to print an air photo or a topo map.
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| The Pennsylvania State University |
| 2004 |
This Website provides an interface for PA Breeding Bird Atlas staff and volunteers to find survey blocks, enter their findings and view results. I developed the component with which users can view a map of a block and print a high-quality PDF map. To print a map, enter the site and click the "Register" link on the left side of the window. Then click the "View Regions & Blocks" link, select a block, click its "Block Map" tab and choose whether to print an air photo or a topo map.
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| The Pennsylvania State University |
| 2004 |
This Website provides an interface for PA Breeding Bird Atlas staff and volunteers to find survey blocks, enter their findings and view results. I developed the component with which users can view a map of a block and print a high-quality PDF map. To print a map, enter the site and click the "Register" link on the left side of the window. Then click the "View Regions & Blocks" link, select a block, click its "Block Map" tab and choose whether to print an air photo or a topo map.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for birds in Pennsylvania at 30 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for birds in Pennsylvania at 90 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for Fish in Pennsylvania at 90 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for Herpetilies in Pennsylvania at 30 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for Herpetilies in Pennsylvania at 90 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for Mammals in Pennsylvania at 30 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2000 |
This layer represents a potential habitat model for Mammals in Pennsylvania at 90 meter resolution. The model associates occurrence of suitable habitat with key environmental factors that can be mapped over the entire region. These key factors include vegetative land cover, presence of human activity, elevation, topographic position, wetland characteristics and stream size and proximity. Areas of potential species presence were tabulated based on current and historical information and a series of conditional statements proceeded using layers derived to depict the key factors on a landscape scale.
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| The Pennsylvania State University |
| 2010 |
Pennsylvania turkey harvest by Wildlife Management Units 2003 - 2009
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| The Pennsylvania State University |
| 2006 |
This table contains the values of all the metrics calculated for the subwatersheds in the Eastern Brook Trout Joint Venture brook trout assessment. The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The subwatershed classifications are based on a combination of quantitative information collected by state agencies and qualitative judgment calls by local experts.
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| U S Department of Agriculture |
| 2006 |
This table contains the results of the models used to classify the subwatersheds where the population status was unknown or there was only qualitative data available. The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The subwatershed classifications are based on a combination of quantitative information collected by state agencies, qualitative judgment calls by local experts, and classification models based on landscape characteristics.
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| U S Department of Agriculture |
| 2006 |
This table contains the results of the models used to classify the subwatersheds where the population status was unknown or there was only qualitative data available. The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The subwatershed classifications are based on a combination of quantitative information collected by state agencies and qualitative judgment calls by local experts.
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| U S Department of Agriculture |
| 2006 |
This table contains the pruned classification tree terminal node numbers for each subwatershed in the Eastern Brook Trout Joint Venture brook trout assessment. The tables also lists the classification probabilities for each node. The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The subwatershed classifications are based on a combination of quantitative information collected by state agencies and qualitative judgment calls by local experts.
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| U S Department of Agriculture |
| 2006 |
This table contains the classification tree terminal node numbers for each subwatershed in the Eastern Brook Trout Joint Venture brook trout assessment. The tables also lists the classification probabilities for each node. The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The subwatershed classifications are based on a combination of quantitative information collected by state agencies and qualitative judgment calls by local experts.
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| U S Department of Agriculture |
| 2006 |
This table contains the ratings of perturbations to brook trout populations by subwatershed. These ratings were designated by biologists taking part in the Eastern Brook Trout Joint Venture population assessment. The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The dataset includes additional information concerning the type and quality of perturbations to brook trout populations. The subwatershed classifications are based on a combination of quantitative information collected by state agencies and qualitative judgment calls by local experts.
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| U S Department of Agriculture |
| 2006 |
The Eastern Brook Trout Joint Venture (EBTJV) is a partnership between state and federal agencies, nongovernmental conservation organizations, and academia. The EBTJV is focused on an effort to protect, restore, and enhance brook trout populations throughout the historic range of the Eastern brook trout. One of the goals of the EBTJV was to produce a subwatershed dataset indicating the current distribution of brook trout populations and their perturbations. This data will aid in quantifying problems, identifying information gaps, and setting restoration priorities. The subwatershed classifications are based on a combination of quantitative information collected by state agencies and qualitative judgment calls by local experts.
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| U S Department of Agriculture |
| 2008 |
The concern caused by the explosive spread of the zebra mussel, (Dreissena
polymorpha), within the United States resulted in passage of the
Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990 (P.L.
101-646). The impact of this biofouling pest on the economy and
ecological processes in the U.S. and Canada has required prompt action on
a large scale to prevent further infestations and minimize ecological
degradation. This map layer is a compilation of reports of confirmed
zebra mussel sightings in the United States from 1988 to January 2008.
It provides geographical and historical information to show distribution
over time. The reports came from a variety of Federal, State, and
municipal agencies, public utilities, universities, engineering and
private consultant firms. The locations of confirmed sightings were
registered at 1:100,000-scale on EPA Reach File Version 3.0 and are
maintained as an ArcInfo export file. This is a revised version of the
June 2005 map layer.
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| U S Geological Survey |