Migrating waterbirds moving between upper and lower latitudinal breeding and wintering grounds, while crossing arid continental interiors, rely on a limited network of endorheic lakes and wetlands, which are waterbodies in closed basins with no outflow.
U.S. Fish & Wildlife Service
Tumbesian dry tropical forests are found along the Pacific coast from southern Ecuador into northern Peru. They represent a region of substantial species endemism and seasonal forest conditions that differ from evergreen tropical forest. Remnant dry forest areas are essential for maintaining watershed conditions and a clean water supply, as well as providing high biodiversity values.
The FWS Division of Migratory Bird Management is integrating remote sensing and machine learning technologies to improve safety, data quality, and efficiency of broad-scale migratory bird surveys. The Division uses manned Department of the Interior fleet aircraft to monitor migratory bird populations over vast regions of North America.
The majority of America’s wetlands are located in Alaska (65%), but to date the FWS National Wetlands Inventory (NWI) Program has produced wetland data covering only 42% of the State. Areas without NWI data include over 31 million acres of the FWS National Wildlife Refuge System.
Forested animal habitat is impacted by disturbance agents such as wind, insect outbreaks, fire, silvicultural treatments, and climate change.
National Wildlife Refuges (NWR) in Texas and Oklahoma manage forested habitats to support priority bird populations in the West Gulf Coastal Plain and Ouachitas Bird Conservation Regions. Airborne laser altimetry or light detection and ranging (lidar) can capture details of forest structure that determine bird species diversity, densities, and distributions.
Although the International Union on Conservation of Nature (IUCN) lists the Egyptian tortoise (Testudo Kleinmanni) as critically endangered, it is the least studied tortoise species in the Mediterranean basin.
Continuous data on vegetation cover, height, and relative density are increasingly sought as useful metrics for determining animal habitat conditions across large areas. Airborne light detection and ranging (lidar) multi-return information provides a ready source of remotely sensed data that can directly estimate vegetation height and cover at appropriate spatial scales. The U.S.
The U.S. Forest Service (USFS)-National Aeronautical and Space Administration (NASA) Virtual Pitch Fest, virtually hosted in early June 2020, was a creative collaboration inspired by the need for virtual connection due to COVID-19 travel restrictions.