Filters: Tags: migratory (X)
5 results (9ms)|
Filters
Date Range
Extensions Types Contacts
Categories Tag Types
|
This map shows the current distribution of species assemblages for the ecoregion, typified by the type of environment each species assemblage is usually found (soil, tree type, or specific place). The input datasets used in the associated geospatial modeling are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate....
Birds are appreciated and enjoyed by thousands of people and also play important roles in the ecosystem as predators, prey, and pollinators. Alaska provides important breeding ground for hundreds of migratory bird species that travel thousands of miles in their annual migrations between breeding and wintering spots. Understanding how climate and land use changes affect migratory bird populations is crucial; however this information is also very difficult to collect. Migration routes expose birds to a wide range of landscapes and habitats, which are often experiencing varying degrees of climate and land use change (e.g. warmer temperatures or increased housing developments). Moreover, climate change in the future...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2015,
Alaska,
Alaska CASC,
Birds,
Birds,
Data contain zero-crossing, frequency acoustic detector locations, date to hour, species of bats recorded and identified and various wind and precipitation values associated with either day or hour for ridges,sideslopes and valleys at 5 locations in western Virginia's Appalachian Mountains.
Categories: Data;
Tags: Appalachians,
USGS Science Data Catalog (SDC),
Virginia,
Wildlife Biology,
bats,
In addition to current distribution of each terrestrial group species, this map shows their current and near-term status within the ecoregion. Current, long-term, and summary bioclimate data is also include for several of these terrestrial group species. The input datasets used in the distribution model are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications...
Historic forest cover in the Mississippi Alluvial Valley has been reduced by >75%. Remaining forests are fragmented, hydrologically altered, and heavily influenced by human activities. Because well drained forests were easily cleared, most remaining large forest fragments are wet forest types. Because forest fragmentation and altered hydrology have negatively affected forest bird populations, we developed a spatially explicit decision support model for bird conservation. This model establishes priority areas for forest restoration that de-fragment the existing bottomland hardwood forests. Our primary objective was to increase the number of forest patches that harbored >2000 ha of interior area (core) that is at...
|
|
