Filters: Tags: Bats (X)
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Hawaiian hoary bats ('ōpe'ape'a; Lasiurus semotus) were captured and tracked back to roosting locations on Hawaiʻi Island. Roost tree metrics were measured and collected from 2018 to 2021. We observed a total of 56 roost trees used by 46 bats (18 female; 25 male; 3 unknown). This data file includes data pertaining to roost tree metrics including, height, diameter at breast height (DBH), tree species, canopy cover, and habitat classification.
Anabat II detector with microphone on 1.5 m pole oriented straight down toward a reflector plate angled at 45 degrees. The detector was placed near the edge of a patch of conifers and directed toward the surrounding coastal grassland and abandoned nursery lands. The objective of this detector was simply to characterize species composition and activity levels throughout the year.
Anabat II detector mounted on a 3m pole oriented straight down toward a reflector plate angled at 45 degrees. The detector was placed on the edge of cow pasture along a dense patch of riparian vegetation along North Jacoby Creek, near Arcata, Califoria. The objective of this detector was to determine species presence and activity levels throughout the year and to correlate them with weather variables from the Eureka Woodley Island weather station and compare to a similarly situated detector in McKinleyville, CA.
Anabat II detector with microphone on a 3m pole oriented straight down toward a reflector plate angled at 45 degrees. The detector was placed right along Bull Creek in fairly, dry (in the fall) open habitat. The objective of this station was to characterize activity levels and changes in them over the fall season... especially for migratory tree bats.
Anabat II detector mounted on a 3m pole oriented straight down toward a reflector plate angled at 45 degrees. The detector was placed on the edge of cow pasture along a dense patch of riparian vegetation along North Jacoby Creek, near Arcata, Califoria. The objective of this detector was to determine species presence and activity levels throughout the year and to correlate them with weather variables from the Eureka Woodley Island weather station and compare to a similarly situated detector in McKinleyville, CA.
Until large numbers of bat fatalities began to be reported at certain North American wind energy facilities, wildlife concerns regarding wind energy focused primarily on bird fatalities. Due in part to mitigation to reduce bird fatalities, bat fatalities now outnumber those of birds. To test one mitigation option aimed at reducing bat fatalities at wind energy facilities, we altered the operational parameters of 21 turbines at a site with high bat fatalities in southwestern Alberta, Canada, during the peak fatality period. By altering when turbine rotors begin turning in low winds, either by changing the wind-speed trigger at which the turbine rotors are allowed to begin turning or by altering blade angles to reduce...
Categories: Publication;
Types: Citation;
Tags: Alberta,
Lasionycteris noctivagans,
Lasiurus cinereus,
bat fatality,
bats,
North American bats have experienced catastrophic population declines from white-nose syndrome (WNS), a fungal disease caused by Pseudogymnoascus destructans (Pd). Although Pd can infect many hibernating bat species, population-level impacts of WNS vary by host species. Microbial skin assemblages, including the fungal component (mycobiome), can influence host resistance to infectious diseases; however, little is known about the influence the skin mycobiome of bats may have on susceptibility to WNS. We sampled ten bat species in the eastern United States that are known to be either susceptible, tolerant, or resistant to WNS by swabbing their wing skin. We then cultured fungi from the swabs, isolated morphologically...
The table illustrates global patterns of betacoronavirus (β-CoV) associations in bats. The table lists bat species in which betacoronaviruses (β-CoVs) were detected, organized by viral subgenera and clade [for Sarbecorviruses], bat family, bat suborder, and general global region where the species of bat occurs. Reference to the published literature sources of information for each row are listed in the last column.
This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters surrounding Alaska and Canada.
This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters surrounding Hawaii.
Through the North American Bat Monitoring Program, Bat Conservation International and U.S. Geological Survey (USGS) collaborated with the U.S. Fish and Wildlife Service to provided technical and science support to assistance in U.S. Fish and Wildlife Services’ Species Status Assessment (“SSA”) for the northern long-eared bat (Myotis septentrionalis), little brown bat (Myotis lucifugus), and tri-colored bat (Perimyotis subflavus). We conducted analyses to estimate changes in bat echolocation activity recorded during mobile transect surveys. Bat activity recorded during mobile acoustic transects provide an index of abundance and can be used to determine changes in populations over time (Roche et al. 2011, Jones et...
A dataset consisting of the documented year of first arrival of Pseudogymnoascus destructans (Pd) at 596 locations across North America was used to fit a Gaussian process model. The model allows prediction of the year of first arrival of Pd at arbitrary locations. The included dataset consists of these predictions which span the North American continent.
Categories: Data,
Data Release - In Progress;
Tags: North America,
bats,
extinction and extirpation,
farming,
statistical analysis,
Oil development in the Bakken shale region has increased rapidly as a result of new technologies and strongdemand for fossil fuel. This region also supports a particularly high density and diversity of grassland bird species,which are declining across North America. We examined grassland bird response to unconventional oilextraction sites (i.e. developed with hydraulic fracturing and horizontal drilling techniques) and associatedroads in North Dakota. Our goal was to quantify the amount of habitat that was indirectly degraded by oil development,as evidenced by patterns of avoidance by birds. Grassland birds avoided areas within 150 m of roads(95% CI: 87–214 m), 267 m of single-bore well pads (95% CI: 157–378 m),...
Categories: Data,
Publication;
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2010,
2011,
2012,
2013,
Bats,
Anabat II detector with microphone on a 3m pole oriented straight down toward a reflector plate angled at 45 degrees. The detector was placed on the banks of the San Lorenzo River. The objective of this detector was to quantify changes in species activity, especially by migratory tree bats, throughout the fall season. Unfortunately few migratory tree bats were confirmed.
Anabat II detector mounted on a 3m pole oriented straight down toward a reflector plate angled at 45 degrees.   Detector was one component of a study to evaluate bat use of remnant trees within vineyards. This detector was placed within a vine row away from any trees.
Until large numbers of bat fatalities began to be reported at certain North American wind energy facilities, wildlife concerns regarding wind energy focused primarily on bird fatalities. Due in part to mitigation to reduce bird fatalities, bat fatalities now outnumber those of birds. To test one mitigation option aimed at reducing bat fatalities at wind energy facilities, we altered the operational parameters of 21 turbines at a site with high bat fatalities in southwestern Alberta, Canada, during the peak fatality period. By altering when turbine rotors begin turning in low winds, either by changing the wind-speed trigger at which the turbine rotors are allowed to begin turning or by altering blade angles to reduce...
Categories: Publication;
Types: Citation;
Tags: Alberta,
Lasionycteris noctivagans,
Lasiurus cinereus,
bat fatality,
bats,
Bats utilizing water sources within plateau forests were surveyed at 24 sites in southern and central Utah. Fourteen taxa were captured, with eight of these formerly listed by the U.S. Fish and Wildlife Service as Category 2 species. The first documented capture of Euderma maculatum from the Manti-LaSal Mountains is noted. Published in Proceedings of the Third Biennial Conference of Research on the Colorado Plateau, in 1996.
Categories: Publication;
Types: Citation,
Conference Citation;
Tags: National Park Service,
Proceedings of the Third Biennial Conference of Research on the Colorado Plateau,
bats,
forests,
survey,
Data collected by US Fish and Wildlife Service on National Wildlife Refuges. Â Data collected as part of an acoustic bat inventory on Refuges within Region 1, Eastside Zone. Â Project was coordinated by the Inventory and Monitoring Initiative with assistance from refuge biologists.
Tags: bats
This Story Map Tour discusses BLM sites that are excellent places to view bats, which can be seen without lights in the evening at twilight, foraging over the water and along canyon walls and riverside (riparian) vegetation. Once darkness falls, a strong flashlight or headlamp can be used to track bats in flight, and a bat detector can pick up the bat’s echolocation calls well into the night. The reason these sites are so well-used is they provide many of bats most important needs in close proximity; cliff crevices and old trees for roosting, water for drinking, and water and riparian vegetation that produces and attracts large numbers of bats insect prey. All the sites listed will have the greatest amount of activity...
Types: Map Service;
Tags: BLM,
Bat Conservation International,
Bats,
Bureau of Land Management,
DOI,
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