Investigation of Northern Long-Eared Bat Roosting Sites on Bridges

Civjan, Scott; Berthaume, Angela; Bennett, Alyssa; Dumont, Betsy; University of Massachusetts at Amherst

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Investigation of Northern Long-Eared Bat Roosting Sites on Bridges

2017-05-31
By Civjan, Scott ; Berthaume, Angela ; Bennett, Alyssa ; ...

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English

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Creators:

Civjan, Scott ; Berthaume, Angela ; Bennett, Alyssa ; Dumont, Betsy

Civjan, Scott ; Berthaume, Angela ; Bennett, Alyssa ; Dumont, Betsy Less -
Corporate Creators:

University of Massachusetts at Amherst
Corporate Contributors:

New England Transportation Consortium ; University of Vermont. Transportation Research Center

New England Transportation Consortium ; University of Vermont. Transportation Research Center Less -
Subject/TRT Terms:

[+]

Bridges Data Collection Habitat (Ecology) Surveys
Publication/ Report Number:

NETC 14-2, NETCR 100
Resource Type:

Tech Report
Geographical Coverage:

New England ; United States

New England ; United States Less -
Edition:

Final
Corporate Publisher:

New England Transportation Consortium
Abstract:

Populations of several non-migratory bat species have declined significantly in New England due to White-nose Syndrome, resulting in several species, including the Northern Long-Eared Bat (Myotis septentrionalis), being listed as threatened or endangered at the federal or state level. While bats are known to roost in bridges in other regions, it was not known whether bridge roosting was utilized in New England. The project initiated with a literature review and interviews with personnel involved in tracking bat populations, inspecting bridges and researching bridge roosting. The project team then conducted rapid visual screenings of 191 bridges throughout New England, and selected eighteen bridges for further in-depth study. Further study included visual inspection, acoustic monitoring, thermal imaging and evening monitoring of structures for emergence. A supplemental visual survey form was developed to supplement the Programmatic Biological Assessment for Transportation Projects in the Range of the Indiana Bat and Northern Long-Eared Bat (U.S. DOT). Comparisons and recommendations are included for evaluation methods including visual inspections, staining characteristics, acoustic monitoring and guano identification, with examples provided for each of the eighteen bridges.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:40bd7e5ad93f60d36d55d830c975dd53d5ca4abac32f6e4965e37b62d4212f97
Download URL:

https://rosap.ntl.bts.gov/view/dot/63265/dot_63265_DS1.pdf
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Investigation of Northern Long-Eared Bat Roosting Sites on Bridges

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