Field evaluations of existing habitat suitability index (HSI) models
for spawning adults, eggs, and larvae of American shad (Alosa
sapidissima) were conducted in 1990-1992; initial models for juveniles ...
The U.S. Geological Survey has been monitoring the Upper Mississippi River
(UMR) since 1987 to document the fate and transport of contaminants associated
with sediments. The UMR is that part of the ...
A National Volcano Early Warning System NVEWS is being formulated by the
Consortium of U.S. Volcano Observatories (CUSVO) to establish a proactive,
fully integrated, national-scale monitoring effort ...
The maps on soils and soil types show percent of land area of specific
The NRI's Wildlife Habitat contains one map, Threatened and
Endangered Species, 1995 This map shows the number of threatened and
endangered plant and animal species by county.
There is also a table, ...
The Florida scrub lizard (Sceloporus woodi), which is listed as a category 2
species of special concern by the US Fish and Wildlife Service, is endemic to
scrub habitat and some open sandhill habitats ...
The Animal Diversity Web is an online database of animal natural
history, distribution, classification, and conservation biology at the
University of Michigan. Students learn considerable detail about ...
The Annual felling of trees in Europe database provides a average annual standing volume of all trees, living or dead, measured overbark to a minimum diameter at breast height (d.b.h.) of 0 cm that ...
Surface- and ground-water quality data were collected in the
Apalachicola-Chattahoochee-Flint (ACF) River basin from August 1992 to
September 1995 as part of the USGS National Water Quality Assessment ...
The objectives of this work were 1) to study the recovery and homogenity of
polychlorinated biphenyls (PCBs) in solution prepared for ELISA by direct
dilution of isooctane solutions; 2) to evaluate ...
The topography of central Florida is an excellent example of a continental
landscape dominated by a single geomorphic process: karst, an array of
landforms formed in response to chemical weathering ...
Fish range maps were created by the Department of Wildlife, Fisheries and
Conservation Department of the University of California at Davis as part of a
contract with the Nature Conservancy. For more ...
Ecoregions are based on perceived patterns of a combination of causal and
integrative factors including land use, land surface form, potential natural
vegetation, and soils (Omernik, 1987). This is ...
Freshwater aquatic plant monitoring is conducted within the Department
of Ecology.s Environmental Monitoring and Trends Section. The
program's purpose is to track aquatic plant community changes in ...
This is the GIS data file for the Arable Lands for the Baltic Sea drainage
basin region. The GIS data set is part of the Baltic Sea Region GIS Database
and part of the Baltic Drainage Basin Project ...
ArcSweden is a geographic database for Sweden containing different
map layers. The geographic database consists of general background
data and geographic boundaries with demographic statistical
Zooplankton collections were made to investigate assess interannual changes in
species composition, abundance and distribution of the zooplankton in the
Chuckchi Sea, one of the biologically lesser ...
This data set contains black and white Digital Ortho Quarter Quads (DOQQ's) for Arizona. The DOQQ and 1:24k DRG images are named with Quad IDs. Note that DOQQ image files have an additional last digit ...
This dataset contains boundary layers for the Aroostook National
Wildlife Refuge in Maine.
National Wildlife Refuges are federal lands managed by the U.S. Fish
and Wildlife Service (USFWS). The primary ...
The spatial distribution of arsenic concentrations in ground water of the
Willamette Basin was assessed by analyzing data from 728 historical and project
sites. Concentrations of arsenic ranged from ...
The Asian Pacific FRIEND is an IHP regional project participated by
thirteen countries from Southeast Asia and the Pacific, which include,
as of January 1999, China, R Korea, Japan, Philippines, Vietnam, ...