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As a result of the prolonged government shutdown, we’re expecting some presentation cancellations and will continue to update the schedule with changes as they occur.  Otherwise the conference will proceed as planned.  Current cancellations and changes are listed here.

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Monday, January 28 • 11:20am - 11:40am
(SYMPOSIA-02) Status and Assessment of Eastern Massasauga Rattlesnakes (Sistrurus catenatus) in Berrien County, Michigan

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AUTHORS: Roshelle Hall (Masters in Biology); Dr. Daniel Gonzalez-Socoloske (Associate Professor); Dr. Peter Lyons (Associate Professor) – Andrews University

ABSTRACT: The Eastern Massasauga rattlesnake (Sistrurus catenatus; EMR) is a small robust pit viper currently found in nine states and the province of Ontario, Canada.  Wetland habitats have experienced significant destruction and fragmentation by humans; as a result, the current distribution of the EMR is a fraction of its historic distribution. For this reason, the EMR has been federally listed as threatened.  In general, little is known about the current distribution of this rattlesnake (in the southwest corner of Michigan), the size of local populations or their stability and genetic diversity. Much of this knowledge is based upon historical data.  Our purpose was to update the available information on the current status in Berrien County and one Van Buren County site. This was done through presence/absence surveys, evaluation of potential threats at each site visited and genetic analysis at the haplotype level.  Through our field surveys we confirmed presence of EMRs at 4 of the 6 historic locations surveyed.  Current threats at these sites include human encroachment, road traffic, and general health of the particular habitat.  Despite the relatively small sample size and isolated populations in these counties,  the haplotype diversity discovered appears to be high in comparison to the rest of their range. 

Monday January 28, 2019 11:20am - 11:40am
HOPE BALLROOM B

Attendees (7)