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Vertebrates
Animals possessing a vertebral column or backbone including birds, fishes, amphibians, reptiles, and mammals.
Subtopics:
Amphibians (26 items)
Birds (70 items)
Fish (54 items)
Mammals (56 items)
Reptiles (16 items)
Related topics:


Results 151 - 160 of 209 listed by similarity [list alphabetically]
Patuxent Bird Identification InfoCenter [More info]
A presentation of bird photographs, songs, identification tips, distribution maps, and life history information for North American birds, and a forum for commentary and discussion on birds.
Patuxent bird population studies [More info]
Links to ornithology programs at Patuxent Wildlife Research Center, Laurel, MD, including large scale survey analysis of bird populations, research tools, datasets and analyses, bird identification, and seasonal bird lists.
Patuxent Fact Sheets [More info]
Access to Patuxent Wildlife Research Center fact sheets (PDFs) providing summaries of center studies on coastal ecosystems, birds, amphibians, taxonomy and other subjects and on center activities including partners and volunteer program.
Patuxent Wildlife Research Center monitoring projects [More info]
Biomonitoring projects studying the status and trends of the nation's environmental resources and programs studying amphibians and birds. Links to long-term programs, resources and references, and related links.
PDF Plague [More info]
History, pathology, and prospects for this historic disease that is still prevalent in animals and remains a threat to humans.
Platte River Program, a USGS Place-Based Studies Program [More info]
Site for the Platte River Program in Nebraska an area that is a critical staging area for migratory waterbirds of the Central Flyway. Includes links to color-infrared aerial photos, 1938 historic aerial photos, and Cottonwood Ranch research site.
Polar bear and walrus response to the rapid decline in Arctic sea ice [More info]
The Arctic is warming faster than other regions of the world due to positive climate feedbacks associated with loss of snow and ice. The USGS has modeled the future responses of polar bear and Pacific walrus populations to this environmental change.
Polar Bear research at the Alaska Science Center [More info]
Ecological studies of polar bears including population dynamics, dependence on sea ice, and tracking methods.
Pollinators, plants, and prosperity [More info]
Six short news articles about ecological problems faced by pollinator species in various parts of the US. Taken from "People, Land, and Water", the newsletter of the Department of the Interior.
Potential effects of anthropogenic greenhouse gases on avian habitats and populations in the Northern Great Plains [More info]
Report on effects of the increase of atmospheric carbon dioxide on plants and animals, especially birds, in the Great Plains including effects of carbon dioxide fertilization, ultraviolet radiation, climate change, and harmful effects on bird habitats.
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