Are Road Crossings Fragmenting Populations of Clinch Dace?
Autor: | Rebecca M. Bourquin, Eric M. Hallerman, Dean F. Stauffer, Donald J. Orth |
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Přispěvatelé: | Fish and Wildlife Conservation |
Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
Chrosomus Ecology biology Culvert 010604 marine biology & hydrobiology 05 Environmental Sciences Restricted distribution 06 Biological Sciences Minnow biology.organism_classification 010603 evolutionary biology 01 natural sciences Nest Habitat Abundance (ecology) biology.animal Genetic variation Ecology Evolution Behavior and Systematics |
Zdroj: | Northeastern Naturalist. 27 |
ISSN: | 1092-6194 |
Popis: | Chrosomus sp. cf. saylori (Clinch Dace) is a newly recognized species of minnow with a restricted distribution in southwestern Virginia. We analyzed genetic variation and abundance at paired sites above and below road crossings. Road crossings did not have a strong effect on presence, abundance, or genetic differentiation of Clinch Dace. Of all sites where Clinch Dace were found, only 1 perched culvert presented a barrier to upstream migration; however, no genetic differentiation was found between collections above and below that or any other culvert. Distribution and abundance of Clinch Dace populations were not influenced by habitat variables measured at the site level. Low abundance in small headwaters, nest association, and high mobility appear to be characteristics of this species of Chrosomus. Published (Publication status) |
Databáze: | OpenAIRE |
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