USGS: Science Topics: population and community ecology

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Population and community ecology

Interactions of a single species (population) or an association of different species (community) occupying a particular region, including their biotic and abiotic environments.

Subtopics:
Animal behavior (27 items)
Biodiversity (26 items)
Biogeography (73 items)
Community ecology (13 items)
Ecosystems (264 items)
Habitats (30 items)
Population dynamics (35 items)
Phenology (11 items)
Symbiosis (1 items)

Radar ecology (2 items)

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Bird Banding Laboratory: the North American Bird Banding Program [More info]: Bird banding is used to study the movement, survival and behavior of birds. The Bird Banding Laboratory Site has links to the value, procedure and history of bird banding, how to report bird bands (English & Spanish), and resources for birders.
Bird checklists of the United States [More info]: Geographical access to multiple bird checklists developed by others that indicate the seasonal occurrence of birds in a given area. A Record Documentation Form to document supporting details of rare bird observations is also available.
Bird Point Count Database [More info]: Perform custom searches for bird count and bird habitat data or enter your bird count and vegetation data.
Born of fire: restoring sagebrush steppe [More info]: USGS Forest and Rangeland Ecosystem Science Center: fact sheet in Adobe PDF about the studies to restore sagebrush steppe
Boston Harbor ecosystems [More info]: This web site is an outgrowth of an agreement between the USGS and the New England Aquarium, designed to summarize and make available results of scientific research. It will also present educational material of interest to wide audiences.
Breeding Bird Explorer [More info]: Data management system for Breeding Bird Atlas projects in Maryland and the District of Columbia and in Vermont.
Bryophytes and lichens, small but indispensable forest dwellers [More info]: Description of bryophytes (mosses, liverworts, and hornworts) and lichens (dual organisms of a fungus and an alga or a cyanobacterium) that are part of forest ecosystems in the Pacific Northwest with information on habitat and conservation.
Buck Island Reef National Monument Sea Turtle Research Program: Sea turtle nesting research & monitoring protocols manual [More info]: Manual for research program on the nesting habits of sea turtles of the Virgin Islands, with descriptions of species, nesting behavior, observation methods, record keeping, tagging, and tissue sample collection. (PDF file, 121 pp.)
Buffelgrass-Integrated modeling of an invasive plant [More info]: Buffelgrass (Pennisetum ciliare) poses a problem in the deserts of the United States, growing in dense stands and introducing a wildfire risk in an ecosystem not adapted to fire. This report explains what we are doing to help mitigate its effects.
Burrowing owls winter in south Texas [More info]: Experimental use of artificial burrows in south Texas to help in conservation of the migratory burrowing owls (Athene cunicularia) that breed in dry grasslands using animal burrows.

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