Eastern Massasauga Rattlesnake (Sistrurus catenatus) Detection and Space Use Near Roads in the Southern Lower Peninsula of Michigan, USA

Rajewski, Jillian A; Campa III, Henry R; Roloff, Gary J; Gray, Steven M; Michigan State University. Dept. of Fisheries and Wildlife

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Eastern Massasauga Rattlesnake (Sistrurus catenatus) Detection and Space Use Near Roads in the Southern Lower Peninsula of Michigan, USA

2024-02-01
By Rajewski, Jillian A ; Campa III, Henry R ; Roloff, Gary J ; ...

[PDF-3.32 MB]

English

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Creators:

Rajewski, Jillian A ; Campa III, Henry R ; Roloff, Gary J ; Gray, Steven M

Rajewski, Jillian A ; Campa III, Henry R ; Roloff, Gary J ; Gray, Steven M Less -
Corporate Creators:

Michigan State University. Dept. of Fisheries and Wildlife
Corporate Contributors:

Michigan Department of Transportation ; United States. Department of Transportation. Federal Highway Administration

Michigan Department of Transportation ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Animals Detection Survey Detectors Eastern Massasauga Rattlesnake Endangered Species Hibernacula Maintenance Roads Space Use Survey Protocol Surveys
Publication/ Report Number:

SPR-1726
Resource Type:

Tech Report
Geographical Coverage:

Michigan ; United States

Michigan ; United States Less -
Edition:

Final Report, 11/25/2019 – 5/31/2023
Corporate Publisher:

Michigan Department of Transportation. Research Administration
Abstract:

Roads are a source of mortality for federally threatened eastern massasauga rattlesnakes (EMR; Sistrurus catenatus) in Michigan. However, a clear understanding of space use and habitat selection of EMR near roads is lacking. Identifying when, where, and why EMR use spaces near roads could inform decisions that reduce the risk of road-related mortalities. Objectives of this research were to survey for EMR at sites along state trunkline roadsides, and report on occupancy probability, demonstrate how weather influences EMR visibility during visual encounter surveys, and explore environmental factors resulting in high EMR space use near roads. During 54 formal (i.e., following a previously published survey protocol) EMR surveys at 35 sites, five EMR were detected (at two sites) along state trunklines. A site refers to an area within the modeled habitat range of EMR, <300m from a roadside and consisting of vegetation cover types (e.g., wet prairie, emergent marsh, early successional forest edges, and upland grassland lightly interspersed with woody vegetation) suitable for EMR use during the overwintering and active seasons. Individual EMR surveys had low site-level detection probability (mean = 0.16 (SE = 0.11)), but repeated surveys increased detection probability to near 1.00 at some sites. In total, 24 EMR were radio-tagged at the two occupied sites and collected locations 1-5 times per week.
Format:

PDF
Funding:

2019-1007
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha-512:104efb2f6341d74143b1cc27f6da816a1cf998aafd28a08305dfda3f2a2e434e5fe1e6bc8f2b0677b22322a8e4a414424e06fa6f5014180fcdba5e20af51d9b5
Download URL:

https://rosap.ntl.bts.gov/view/dot/76639/dot_76639_DS1.pdf
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Eastern Massasauga Rattlesnake (Sistrurus catenatus) Detection and Space Use Near Roads in the Southern Lower Peninsula of Michigan, USA

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