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The Portal Project is a long-term ecological study that has been monitoring small mammal community responses to climate and experimental manipulation of dominant rodent species since 1977 in southeastern Arizona. Ecological Level: Community Biome: Desert Location: Southeastern Arizona (Lat/Long) Spatial Scale of data: Each plot is .25 ha. There are...MORE
Powdermill Nature Reserve monitored small mammal populations from 1979-1999.MORE
This dataset describes long-term (1977-2002) experimental manipulations of ant, plant and rodent species in a desert ecosystem, among other alterations to the system. Data Location: Ecological Archives Site Location: Chihuahuan Desert, near Portal, Arizona (31 o 56' 20.29" N, 109 o 4' 47.44" W) Sites Georeferenced: Yes (not part of...MORE
This web site hosts information about the entire fossil record, including information about fossil collections, individual plants and animals, taxonomic groups, references to publications, stratigraphic units, time scales, and time intervals. Data Location: paleobiodb.org Data Available: collection, occurrence, specimen records, taxonomic names/opinion, measurements of specimens Comments: Tools are available on...MORE
Geographic information on the distribution of late Quaternary mammals of the U.S. Dataset Location: http://www.museum.state.il.us/research/faunmap/aboutfaunmap.html Site(s) Georeferenced: Yes Data collection summary/Methods: Data gathered from the literature Data Available: Information on site names and numbers, location, relative and absolute chronologies, including cultural associations, depositional systems, taphonomic attributes, and mammal species from...MORE
Please see details in the cited publication. In addition to the presence absence data, there are also photos of each subplot from 2005 onward. Nelis, L.C. and J.T. Wootton, Treatment-based Markov chain models clarify mechanisms of invasion in an invaded grassland community. Proceedings of the Royal Society Biological Sciences Series...MORE
Via NEON's overview page: Data will be collected from 106 sites (60 terrestrial, 36 aquatic and 10 aquatic experimental) across the U.S. (including Alaska, Hawaii and Puerto Rico) using instrument measurements and field sampling. NEON will combine site-based data with remotely sensed data and existing continental-scale data sets (e.g. satellite...MORE
This website and database hosts records of fossil pollen, charcoal, and mammal assemblages, as well as plant macrofossils, largely from North America, but also globally, throughout the Pleiocene-Quaternary (and Anthropocene). Also included are chronological controls that allow the use of the records through time from the last 5 million years...MORE
The USGS Gap Analysis Program (GAP) PAD-US is the national inventory of U.S. terrestrial and marine protected areas that are dedicated to the preservation of biological diversity and to other natural, recreation and cultural uses, managed for these purposes through legal or other effective means. Lands in PAD-US are mainly...MORE
Assessing the direct and indirect consequences of nonrandom species removal within guilds of strongly interacting species, such as large mammalian herbivores, is an important goal in basic and applied ecology. The ecological impacts of such perturbations are often contingent on abiotic conditions, which have hindered efforts to generalize the results...MORE