國立虎尾科技大學 |

Nutritional Ecology of the Western Cottonmouth (Agkistrodon piscivorus leucostoma).

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Nutritional Ecology of the Western Cottonmouth (Agkistrodon piscivorus leucostoma)./
作者:	Ortega, Jason.
面頁冊數:	1 online resource (94 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:	Dissertations Abstracts International85-03B.
標題:	Aquatic sciences. -
電子資源:	click for full text (PQDT)
ISBN:	9798380171830

Nutritional Ecology of the Western Cottonmouth (Agkistrodon piscivorus leucostoma).
Ortega, Jason.

Nutritional Ecology of the Western Cottonmouth (Agkistrodon piscivorus leucostoma). - 1 online resource (94 pages)

Source: Dissertations Abstracts International, Volume: 85-03, Section: B.

Thesis (Ph.D.)--University of Arkansas, 2023.

Includes bibliographical references

Nutritional ecology aims to understand the factors that shape the diets of animals, how these ingested meals are processed, and how the assimilated nutrients are used to shape an organism's interactions with its environment. As environmental parameters are altered due to anthropogenic changes, the availability and quality of prey may be altered. The alteration of the nutritional landscape can be devastating to nutritional specialists, yet generalist predators may be able to cope with these changes. The western cottonmouth (Agkistrodon piscivorus leucostoma) is a unique semiaquatic pitviper that can both forage along the land-water interface and in upland habitat when faced with drought conditions. Given the potentially wide diet breath of this species, how would it respond to shifts in prey base? Is there a relationship between prey preference and digestive performance of the cottonmouth? I explored this question using stable isotope dietary analysis, behavioral prey preference trials, and measurement of the metabolic response to feeding (specific dynamic action). The notoriously wide diet breath of the cottonmouth was verified through stable isotope analysis, where animals were consuming various fish and frog species, and potentially crayfish. Prey preference trials conducted using an X maze showed that these snakes would readily eat fish, frog, and mouse, yet they showed a very strong aversion to crayfish. Of the prey types that were readily eaten by cottonmouths, mouse meals generated the highest overall specific dynamic action response while fish and frog meals were comparable to one another.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380171830Subjects--Topical Terms:

1178821
Aquatic sciences.
Subjects--Index Terms:

HerpetologyIndex Terms--Genre/Form:

554714
Electronic books.

Nutritional Ecology of the Western Cottonmouth (Agkistrodon piscivorus leucostoma).
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