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Habitat associations of rare species...

Welch, Nathan Ewart.

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Habitat associations of rare species: A case study using Columbia spotted frogs (Rana luteiventris) in Utah (Utah).

Record Type:	Electronic resources : Monograph/item
Title/Author:	Habitat associations of rare species: A case study using Columbia spotted frogs (Rana luteiventris) in Utah (Utah)./
Author:	Welch, Nathan Ewart.
Description:	62 p.
Notes:	Source: Masters Abstracts International, Volume: 41-06, page: 1666.
Contained By:	Masters Abstracts International41-06.
Subject:	Biology, Ecology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1413855

Habitat associations of rare species: A case study using Columbia spotted frogs (Rana luteiventris) in Utah (Utah).
Welch, Nathan Ewart.

Habitat associations of rare species: A case study using Columbia spotted frogs (Rana luteiventris) in Utah (Utah). - 62 p.

Source: Masters Abstracts International, Volume: 41-06, page: 1666.

Thesis (M.S.)--Utah State University, 2003.

Conservation plans benefit from basic ecological information about factors that limit the distribution of focal species. This study illustrates two observational approaches used to investigate the ecology of the Columbia spotted frog (<italic> Rana luteiventris</italic>), a rare species in Utah. First, hypothesized frog-habitat associations were evaluated by comparing occupied and apparently unoccupied ponds. Data were analyzed using Akaike's Information Criterion to quantify evidence for hypotheses and to select predictive models. Although variable, results suggest frogs are more likely to be found in ponds that do not shrink in size seasonally, maintain a relatively constant seasonal water temperature, and have high littoral vegetation cover. Second, overwintering habitat was investigated using radio telemetry. Only 2 of 15 frogs retained their transmitters through the winter. The single overwintering site was characterized by shallow, open water, extensive woody debris, and a cobble substrate.Subjects--Topical Terms:

1017726
Biology, Ecology.

Habitat associations of rare species: A case study using Columbia spotted frogs (Rana luteiventris) in Utah (Utah).
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008 130614s2003 eng d
035 $a (UnM)AAI1413855
035 $a AAI1413855
040 $a UnM $c UnM
100 1 $a Welch, Nathan Ewart. $3 1946644
245 1 0 $a Habitat associations of rare species: A case study using Columbia spotted frogs (Rana luteiventris) in Utah (Utah).
300 $a 62 p.
500 $a Source: Masters Abstracts International, Volume: 41-06, page: 1666.
500 $a Major Professor: James A. MacMahon.
502 $a Thesis (M.S.)--Utah State University, 2003.
520 $a Conservation plans benefit from basic ecological information about factors that limit the distribution of focal species. This study illustrates two observational approaches used to investigate the ecology of the Columbia spotted frog (<italic> Rana luteiventris</italic>), a rare species in Utah. First, hypothesized frog-habitat associations were evaluated by comparing occupied and apparently unoccupied ponds. Data were analyzed using Akaike's Information Criterion to quantify evidence for hypotheses and to select predictive models. Although variable, results suggest frogs are more likely to be found in ponds that do not shrink in size seasonally, maintain a relatively constant seasonal water temperature, and have high littoral vegetation cover. Second, overwintering habitat was investigated using radio telemetry. Only 2 of 15 frogs retained their transmitters through the winter. The single overwintering site was characterized by shallow, open water, extensive woody debris, and a cobble substrate.
590 $a School code: 0241.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Biology, Biostatistics. $3 1018416
690 $a 0329
690 $a 0308
710 2 0 $a Utah State University. $3 960049
773 0 $t Masters Abstracts International $g 41-06.
790 1 0 $a MacMahon, James A., $e advisor
790 $a 0241
791 $a M.S.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1413855