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Habitat Suitability and Predictive A...

Field, Kelsie Riane.

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Habitat Suitability and Predictive Analytics for Informing the Translocation of an Endangered Desert Fish, Gila Chub (Gila intermedia).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Habitat Suitability and Predictive Analytics for Informing the Translocation of an Endangered Desert Fish, Gila Chub (Gila intermedia)./
作者:	Field, Kelsie Riane.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	117 p.
附註:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
標題:	Ecology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30419694
ISBN:	9798379732813

Habitat Suitability and Predictive Analytics for Informing the Translocation of an Endangered Desert Fish, Gila Chub (Gila intermedia).
Field, Kelsie Riane.

Habitat Suitability and Predictive Analytics for Informing the Translocation of an Endangered Desert Fish, Gila Chub (Gila intermedia). - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 117 p.

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.S.)--New Mexico State University, 2023.

This item must not be sold to any third party vendors.

Translocation is an important element in the recovery of the federally endangered desert fish, Gila Chub Gila intermedia. Replication of populations is critical to ensuring resiliency to environmental and biological pressures throughout its range in Arizona, New Mexico, and Sonora, Mexico. While the species is found throughout the Gila River basin in Arizona, it is largely extirpated in New Mexico. Our goal was to determine the suitability of translocation sites in the San Francisco River of the Gila River basin in New Mexico based on predictions from systematic habitat assessments of extant populations. First, we elicited specific habitat attributes for Gila Chub from a species expert panel and applied known biological variables for the species as prerequisite constraints to four potential translocation sites. We used a random forest model as a predictive analytical tool trained on habitat and fish community attributes from five extant populations. We then predicted Gila Chub abundance at randomly selected 100 m reaches within translocation sites to determine the level of suitability. In the top random forest model, predicted Gila Chub abundance was supported by the following variables (in order of importance): proportion of pool mesohabitat, discharge, Speckled Dace Rhinichthys osculus abundance, proportion of fine substrate, median stream temperature, dominant substrate type, conductivity, elevation, hardness, and the proportion of riffle mesohabitat. We then compared the mean predicted Gila Chub abundance across translocation sites. Three sites were deemed suitable with average predicted abundances of 11.6 - 29.0 fish per 100 m. We deemed one site unsuitable because it did not meet the prerequisite biological constraint of spawning temperature duration (15 - 26˚C for ≥ 60 consecutive days). Our work furthers the ecological understanding of the species while increasing the likelihood of successfully translocating Gila Chub to the San Francisco River, New Mexico.

ISBN: 9798379732813Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Desert fish

Habitat Suitability and Predictive Analytics for Informing the Translocation of an Endangered Desert Fish, Gila Chub (Gila intermedia).
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520 $a Translocation is an important element in the recovery of the federally endangered desert fish, Gila Chub Gila intermedia. Replication of populations is critical to ensuring resiliency to environmental and biological pressures throughout its range in Arizona, New Mexico, and Sonora, Mexico. While the species is found throughout the Gila River basin in Arizona, it is largely extirpated in New Mexico. Our goal was to determine the suitability of translocation sites in the San Francisco River of the Gila River basin in New Mexico based on predictions from systematic habitat assessments of extant populations. First, we elicited specific habitat attributes for Gila Chub from a species expert panel and applied known biological variables for the species as prerequisite constraints to four potential translocation sites. We used a random forest model as a predictive analytical tool trained on habitat and fish community attributes from five extant populations. We then predicted Gila Chub abundance at randomly selected 100 m reaches within translocation sites to determine the level of suitability. In the top random forest model, predicted Gila Chub abundance was supported by the following variables (in order of importance): proportion of pool mesohabitat, discharge, Speckled Dace Rhinichthys osculus abundance, proportion of fine substrate, median stream temperature, dominant substrate type, conductivity, elevation, hardness, and the proportion of riffle mesohabitat. We then compared the mean predicted Gila Chub abundance across translocation sites. Three sites were deemed suitable with average predicted abundances of 11.6 - 29.0 fish per 100 m. We deemed one site unsuitable because it did not meet the prerequisite biological constraint of spawning temperature duration (15 - 26˚C for ≥ 60 consecutive days). Our work furthers the ecological understanding of the species while increasing the likelihood of successfully translocating Gila Chub to the San Francisco River, New Mexico.
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