A5048303223- Bird parasitology and diseases
- Rangeland and Wildlife Management
- Environmental Toxicology and Ecotoxicology
- Botany, Ecology, and Taxonomy Studies
- Pleistocene-Era Hominins and Archaeology
- Species Distribution and Climate Change
- Avian ecology and behavior
- Fish Ecology and Management Studies
- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Electrochemical Analysis and Applications
- Hydrology and Sediment Transport Processes
- Pesticide Residue Analysis and Safety
- Soil erosion and sediment transport
- Aquaculture disease management and microbiota
- Geology and Paleoclimatology Research
- Animal Nutrition and Physiology
- Tree-ring climate responses
United States Geological Survey
2024
Denver Federal Center
2024
Abt Global (United States)
2017-2018
Plant macrofossils from packrat (Neotoma spp.) middens provide direct evidence of past vegetation changes in arid regions North America. Here we describe the newest version (version 5.0) U.S. Geological Survey (USGS) American Packrat Midden Database. The database contains published and contributed data 3,331 midden samples collected southwest Canada, western United States, northern Mexico, with ranging age 48 ka to present. includes original midden-sample macrofossil counts...
This is the seventh volume in an atlas series that explores relations between geographic distributions of woody plant species and climatic variables North America. A 25-kilometer (km) equal-area grid modern bioclimatic was constructed from weather data. The selected tree shrub were digitized, presence or absence each determined for point on 25-km grid, thus providing a basis comparing data species' distributions. climate are presented graphical tabular form. results this effort intended...
Abstract We investigated the olfactory toxicity of copper (Cu) to rainbow trout in low‐hardness (27 mg/L as CaCO 3 ) water formulated laboratory over a 120‐h period using flow‐through design. The fish's response an alarm cue (e.g., reduction activity) was recorded determine exposure concentrations and durations that inhibited detection after 3, 24, 48, 96 h Cu 24 clean recovery following 96‐h period. Exposures were conducted with range from 0.13 (control) 7.14 μg Cu/L (dissolved Cu)....