Found 75 datasets matching "Population declines".
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Prior to removal of pest species from an area, resource managers must determine if re-immigration from another population is possible. Voles inhabiting Saddle Rock on the southern Oregon coast are...
Search relevance: 50.87 | Views last month: 0 -
To better understand potential mechanisms underlying continued population declines of Steller sea lions in Alaska, we captured and deployed satellite-linked transmitters on 30 juvenile (ages 5-21...
Search relevance: 50.24 | Views last month: 0 -
Fragmentation and loss of natural habitat have important consequences for wild populations and can negatively affect long-term viability and resilience to environmental change. Salt marsh obligate...
Search relevance: 49.90 | Views last month: 0 -
Eastern black rail populations have experienced declines marked by reductions in occupied sites and decline in numbers within historic strongholds. Evidenced by increasing confinement to the...
Search relevance: 49.44 | Views last month: 0 -
Point transect distance sampling data collected during the 2010 surveys of Alamagan, Commonwealth of the Northern Mariana Islands (CNMI). Data were collected at points along transects where...
Search relevance: 48.80 | Views last month: 0 -
Point transect distance sampling data were collected during the 2010 surveys of Alamagan, Commonwealth of the Northern Mariana Islands (CNMI). Data were collected at points along transects where...
Search relevance: 48.80 | Views last month: 0 -
Point transect distance sampling data collected during the 2003 to 2016 surveys of lower Puna District, Hawai`i. Data were collected at points along rural highways, secondary roads and residential...
Search relevance: 46.29 | Views last month: 1 -
The newly identified rapid ‘ohi‘a death (ROD; Metrosideros polymorpha) originated in the lower Puna district and its distribution has spread across Hawai‘i Island. As ROD expands it is expected...
Search relevance: 45.30 | Views last month: 1 -
A significant portion of the interstate Carson River herd summers in the Sierra Nevada range of California and migrates to a winter range near the California-Nevada border. Herd size has declined...
Search relevance: 44.83 | Views last month: 0 -
A significant portion of the interstate Carson River herd summers in the Sierra Nevada range of California and migrates to a winter range near the California-Nevada border. Herd size has declined...
Search relevance: 44.83 | Views last month: 0 -
A central challenge in applied ecology is understanding the effect of anthropogenic fatalities on wildlife populations and predicting which populations may be particularly vulnerable and in...
Search relevance: 44.80 | Views last month: 0 -
The Cape Sable Seaside Sparrow (CSSS; Ammospiza maritima mirabilis) is an endangered species that has experienced population declines of more than 60% since the 1990s. The CSSS is restricted in...
Search relevance: 44.63 | Views last month: 3 -
Sagebrush ecosystems and wildlife that depend on them are under pressure from development, changing climate, as well as natural and human-caused disturbance. Mule deer (Odocoileus hemionus) are of...
Search relevance: 43.36 | Views last month: 0 -
A significant portion of the interstate Carson River herd summers in the Sierra Nevada range of California and migrates to a winter range near the California-Nevada border. Herd size has declined...
Search relevance: 43.17 | Views last month: 1 -
A significant portion of the interstate Carson River herd summers in the Sierra Nevada range of California and migrates to a winter range near the California-Nevada border. Herd size has declined...
Search relevance: 43.17 | Views last month: 0 -
The data were collected to estimate Pacific razor clam density in the region of Hallo Bay, Alaska in Katmai National Park and Preserve. The region was originally sampled in the 1970's (Kaiser,...
Search relevance: 41.88 | Views last month: 0 -
In this study we use long-term satellite, climate, and crop observations to document the spatial distribution of the recent stagnation in food grain production affecting the water-limited tropics...
Search relevance: 41.88 | Views last month: 4 -
Annual growth increment patterns observed in the hard parts of many marine organisms are often related to factors in the physical environment, and investigators are increasingly using...
Search relevance: 41.37 | Views last month: 0 -
Body condition indices and related metrics can help assess habitat quality and other ecological processes, and ideally these metrics are based on measures of lipids directly extracted from the...
Search relevance: 40.45 | Views last month: 0 -
The decline of the iconic monarch butterfly in North America has motivated research on the impacts of land use and land cover (LULC) change and climate variability on monarch habitat and...
Search relevance: 40.16 | Views last month: 0
