NABat News July 2022
WNS Detected in Mississippi
The Mississippi Department of Wildlife, Fisheries and Parks has announced the confirmation of white-nose syndrome in Mississippi for the first time. A tri-colored bat with visible fungal growth was confirmed positive for the disease by USGS National Wildlife Health Center. While WNS has been confirmed in multiple manmade structures used as hibernacula (tunnels, bunkers, etc.), this is the first confirmation of disease in a roadway culvert in the southeast. In addition to being the first confirmation of WNS in MS, this observation is notable because Pd has been routinely found in these culverts without confirmation of disease in previous years.
WNS Detected in Minnetonka Cave
Idaho Fish and Game and the US Forest Service have both announced the detection of Pd on six bats at Minnetonka Cave, a show cave in southeastern Idaho. The six affected bats were of three different species: little brown, long-legged, and Yuma myotis - all species that have previously been confirmed with white-nose syndrome. There has been no evidence of WNS at the site to date. This is the first confirmation of Pd in Idaho. This detection is now displayed on the white-nose syndrome spread map along with other Pd and WNS detections.
MYLU Declines in Azure Cave, Montana
Montana Fish Wildlife and Parks, Montana Natural Heritage Program and the Bureau of Land Management recently shared the results of their winter survey of Azure Cave. Previously, this hibernaculum housed the largest winter colony of little brown bats in the state and across much of the west. They documented a decline of 98% in the winter colony. This year marks the third winter since Pd was detected at the site.
Wanted: TABR/ANPA Roost Locations
NABat is seeking roost locations for Mexican free-tailed and pallid bats in support of an upcoming project. Roost locations will aid and validate a predictive modeling effort. We're offering multiple data sharing agreement options to ensure the security of sensitive roost sites. If you have concerns about sharing your data, we would like to discuss options with you that address your concerns. To learn more, share data, or discuss data sharing security options, please reach out to NABat's technical outreach team.
CoP Calls on Hiatus
We are taking a break from our regular monthly calls while folks are in the midst of busy summer field seasons. Keep an eye out on the events calendar for future meetings. You can also contact Bethany Straw to be added to the distribution list and receive meeting invitations directly in your inbox.
Highlight: Upcoming NABat Training Webinar Series
Mark your calendars, NABat's seasonal training webinars are making a return! Two virtual trainings are currently posted with more to come.
Check out the NABat Events page for a complete list of training webinars and all other upcoming events!
Statistical assessment on determining local presence of rare bat species Towards evidence-based conservation of subterranean ecosystems Long-term field studies in bat research: Importance for basic and applied research questions in animal behavior Microbial isolates with anti-Pseudogymnoascus destructans activities from western Canadian bat wings Changes in the forest bat community after arrival of white-nose syndrome in the Ouachita Mountains of Arkansas Seven-year impact of white-nose syndrome on tri-colored bat (Perimyotis subflavus) populations in Georgia, USA Model-based surveillance system design under practical constraints with application to white nose syndrome Emerging viruses: cross-species transmission of coronaviruses, filoviruses, henipaviruses, and rotaviruses from bats Disease-related population declines in bats demonstrate non exchangeability in generalist predator A bibliometric analysis of research trends in bat echolocation studies between 1970 and 2021 An analysis of data compression algorithms in the context of ultrasonic bat bioacoustics Estimating occupancy from autonomous recording unit data in the presence of misclassifications and detection heterogeneity Detection distances in desert dwelling, high duty cycle echolocators: a test of the foraging habitat hypothesis Learning structured sparsity for time-frequency reconstruction Sampling flying bats with thermal and near-infrared imaging and ultrasound recording: hardware and workflow for bat point counts Bat echolocation call detection and species recognition by transformers with self-attention Potential for identification of wild night-flying moths by remote infrared microscopy Novel passive detection approach reveals low breeding season survival and apparent lactation cost in a critically endangered cave bat Predator-prey relationship between urban bats and insects impacted by both artificial light at night and spatial clutter Human–wildlife conflicts across landscapes—general applicability vs. case specificity A stochastic simulation model for assessing the masking effects of road noise for wildlife, outdoor recreation, and bioacoustic monitoring Habitat associations of overwintering bats in managed pine forest landscapes Identifying factors across multiple scales that impact bat activity and species richness in a fragmented landscape Spatial distribution of bat activity in agricultural fields: Implications for ecosystem service estimates National-scale impacts on wind energy production under curtailment scenarios to reduce bat fatalities Curtailment and acoustic deterrents reduce bat mortality at wind farms Diet analysis of bats killed at wind turbines suggests large-scale losses of trophic interactions Using weather radar to help minimize wind energy impacts on nocturnally migrating birds Passive operation of a blade-mounted, ultrasonic bat deterrent using an exhaust diffuser Distance to hedgerows drives local repulsion and attraction of wind turbines on bats: implications for spatial siting Informing wind energy development: land cover and topography predict occupancy for Arizona bats Characteristics of day-roosts used by northern long-eared bats (Myotis septentrionalis) in coastal New York The first confirmed occurrence of Myotis septentrionalis (northern long-eared bat) on the Delmarva Peninsula Distribution and roost site selection of eastern small-footed bats (Myotis leibii) in mountains of west-central Arkansas Attraction to conspecific social-calls in a migratory, solitary, foliage-roosting bat (Lasiurus cinereus) Bats mimic hymenopteran insect sounds to deter predators
NABat/Fort Collins Science Center
We're seeking an additional Biologist to join the NABat team! This is a term appointment not to exceed 13 months with possible extensions up to a total of 4 years without further competition.
Tetra Tech is currently seeking a qualified Bat Biologist for its Portland, Maine office location to support projects across the country. The position involves providing strategic task management, technical direction and consulting, and scientific support to various projects involving bat species and habitats.
July's Featured Resource: Book an Appointment!
Still have questions? Users who need project guidance or assistance are encouraged to reach out to our Technical Monitoring team for consultation.
In case you missed it, we'll be hosting a photo contest near the end of summer!
Make sure you snap pictures this summer for any of the contest's three categories: Surveys, Acoustic Equipment Setups, and Bats. Each category's winning entrant will be awarded 2 AudioMoth bat detectors! Info regarding the submission process and contest start/end dates will be announced towards the end of summer.