Genetic Variation of Pronghorn Across US Highway 89 and State Route 64

Theimer, Tad; Sprague, Scott C.; Eddy, Ellyce; Benford, Russell

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Genetic Variation of Pronghorn Across US Highway 89 and State Route 64

2012-03-23
By Theimer, Tad ; Sprague, Scott C. ; Eddy, Ellyce

File Language:

English

Details

Creators:

Theimer, Tad ; Sprague, Scott C. ; Eddy, Ellyce ; Benford, Russell
Corporate Creators:

Northern Arizona University
Corporate Contributors:

Arizona. Department of Transportation ; United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA-AZ-12-659
Resource Type:

Tech Report
Geographical Coverage:

Arizona;United States
Edition:

Final Report 05/2008 – 12/2011
Corporate Publisher:

Arizona. Department of Transportation
Abstract:

This study investigated whether highways acted as barriers to gene flow for pronghorn in northern Arizona. DNA samples from 132 pronghorn were analyzed using eight polymorphic microsatellite loci. Samples represented animals living on opposite sides of US Route 89 (US 89) and State Route 64 (SR 64). Two different modeling approaches indicated that both US 89 and SR 64, and to a lesser extent US Route 180 (US 180), acted as barriers to gene flow. The genetic structuring caused by highways, especially across US 89, is consistent with behavioral data that demonstrated pronghorn rarely cross this highway. This study found no evidence of inbreeding or reduced genetic variation in any of the populations examined, but those effects may take longer to appear. Based on these results, the researchers recommend future genetic monitoring of these populations or assessment of genetic variation across highways with larger traffic volumes or longer histories to determine whether the barrier effects documented here lead to loss of genetic diversity.
Format:

PDF
Funding:

SPR-PL-1(173) 659
Download URL:

https://rosap.ntl.bts.gov/view/dot/34364/dot_34364_DS1.pdf
File Type:

[PDF - 1.31 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:75d4206fa229aebfce465b2d4c47ead2edfce2e7119a7f8fb56f3dccb269c6986baeddf1701f008009bb833ddb6c875d37ca1ecd280c3d6f887b5b4236bf75bb

File Language:

English

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