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In recent years, the demand has grown for information on how to conserve bat populations in forested ecosystems. Many researchers have responded with studies of bats in forests, but few have studied bat communities in arid-adapted forest types, such as pinyon-juniper woodlands, which are widespread and abundant throughout the west. In this study, I evaluated the relative use and importance of pinyon-juniper woodlands to bats in west-central New Mexico by comparing bats captured in pinyon-juniper woodlands with those captured in ponderosa pine forest. I compared species richness and relative abundance of bats captured in these vegetation types and evaluated the relative importance of each based on its use as reproductive...
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...
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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),...
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...
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.
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Conclusions: Areas for roosting are likely the most limiting factor for the Western Small-footed Myotis. Unlike various other bats, this myotis does not roost in trees, but rather under rocks, and in holes and crevices found in rock outcrops within cliffs and coulees. Summer roosts can be found in cavities within cliffs, boulders, vertical banks, the ground, and talus slopes. Distance to water was also a significant factor affecting habitat suitability Thresholds/Learnings: Habitat for western small-footed myotis bats is ideally located within 1000m of water. Habitat located >3000m from water is deemed unsuitable. Synopsis: Areas for roosting are likely the most limiting factor for the Western Small-footed Myotis....
    map background search result map search result map Use of pinyon-juniper woodlands by bats in New Mexico Western Small-footed Myotis (Myotis ciliolabrum ciliolabrum) Avoidance of unconventional oil wells and roads exacerbates habitat loss for grassland birds in the North American great plains Avoidance of unconventional oil wells and roads exacerbates habitat loss for grassland birds in the North American great plains Use of pinyon-juniper woodlands by bats in New Mexico Western Small-footed Myotis (Myotis ciliolabrum ciliolabrum)