東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Determining the Effect of Variability in Habitat Quality on Dispersal.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Determining the Effect of Variability in Habitat Quality on Dispersal./
作者:	Selwyn, Jason D.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
面頁冊數:	181 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
標題:	Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29160876
ISBN:	9798819373835

Determining the Effect of Variability in Habitat Quality on Dispersal.
Selwyn, Jason D.

Determining the Effect of Variability in Habitat Quality on Dispersal. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 181 p.

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--Texas A&M University - Corpus Christi, 2022.

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

The dispersal of individuals between populations is a foundational process to understand at the interface of ecology and evolution. The natal habitat is theorized to strongly influence the degree of dispersal expected. However, understanding the interaction between habitat and dispersal is difficult to study empirically, particularly in a single location where other environmental factors are held constant. Understanding how habitats influence dispersal is important not only for the foundational understanding of ecological and evolutionary processes but also as they relate to the design of marine protected area networks. Here I seek to understand how heterogeneity in habitat quality influences the dispersal dynamics of the common Caribbean reef goby Coryphopterus hyalinus as a model for other species with similar life histories in different systems. To determine how variation in habitat quality influences dispersal first I had to establish what topographical features of the reef equate to greater habitat quality from the perspective of the previously presumed habitat generalist C. hyalinus. I found that as adults C. hyalinus live in mixed species shoals with their congener C. personatus and are distributed across shallow coral reef ecosystems tending to be found in greater densities in more complex, deeper reef areas at the margin of large sand patches. In Turneffe Atoll, C. hyalinus has an average dispersal distance of 3.1 ± 0.3 km with 95% of individuals dispersing less than 7.7 ± 0.65 km. However, spatially heterogeneous habitats are characterized by shorter mean dispersal distances, smaller dispersal spreads, and higher propensity for long-distance dispersal events. This observation likely has strong conservation implications for the design and futureproofing of network-based conservation designs which depend upon dispersal between individual nodes of the network for proper functioning. As anthropogenic climate change alters habitats and in the short-term leads to increasingly fragmented and heterogeneous landscapes these networks may no longer be sustainable given the shrinking of the dispersal spread of the species these networks are designed to protect.

ISBN: 9798819373835Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Bet-hedging

Determining the Effect of Variability in Habitat Quality on Dispersal.
LDR:03469nmm a2200409 4500 001 2348260
005 20220908123015.5
008 241004s2022 ||||||||||||||||| ||eng d
020 $a 9798819373835
035 $a (MiAaPQ)AAI29160876
035 $a AAI29160876
040 $a MiAaPQ $c MiAaPQ
100 1 $a Selwyn, Jason D. $0 (orcid)0000-0002-9100-217X $3 3687589
245 1 0 $a Determining the Effect of Variability in Habitat Quality on Dispersal.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 181 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
500 $a Advisor: Hogan, J. Derek;Bird, Christopher E.
502 $a Thesis (Ph.D.)--Texas A&M University - Corpus Christi, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a The dispersal of individuals between populations is a foundational process to understand at the interface of ecology and evolution. The natal habitat is theorized to strongly influence the degree of dispersal expected. However, understanding the interaction between habitat and dispersal is difficult to study empirically, particularly in a single location where other environmental factors are held constant. Understanding how habitats influence dispersal is important not only for the foundational understanding of ecological and evolutionary processes but also as they relate to the design of marine protected area networks. Here I seek to understand how heterogeneity in habitat quality influences the dispersal dynamics of the common Caribbean reef goby Coryphopterus hyalinus as a model for other species with similar life histories in different systems. To determine how variation in habitat quality influences dispersal first I had to establish what topographical features of the reef equate to greater habitat quality from the perspective of the previously presumed habitat generalist C. hyalinus. I found that as adults C. hyalinus live in mixed species shoals with their congener C. personatus and are distributed across shallow coral reef ecosystems tending to be found in greater densities in more complex, deeper reef areas at the margin of large sand patches. In Turneffe Atoll, C. hyalinus has an average dispersal distance of 3.1 ± 0.3 km with 95% of individuals dispersing less than 7.7 ± 0.65 km. However, spatially heterogeneous habitats are characterized by shorter mean dispersal distances, smaller dispersal spreads, and higher propensity for long-distance dispersal events. This observation likely has strong conservation implications for the design and futureproofing of network-based conservation designs which depend upon dispersal between individual nodes of the network for proper functioning. As anthropogenic climate change alters habitats and in the short-term leads to increasingly fragmented and heterogeneous landscapes these networks may no longer be sustainable given the shrinking of the dispersal spread of the species these networks are designed to protect.
590 $a School code: 1417.
650 4 $a Ecology. $3 516476
650 4 $a Evolution & development. $3 3172418
650 4 $a Biology. $3 522710
650 4 $a Biological oceanography. $3 2122748
653 $a Bet-hedging
653 $a Coryphopterus hyalinus
653 $a Dispersal
653 $a Habitat heterogeneity
653 $a Photogrammetry
653 $a Relatedness
653 $a Habitat quality
690 $a 0329
690 $a 0412
690 $a 0306
690 $a 0416
710 2 $a Texas A&M University - Corpus Christi. $b Marine Biology Program. $3 3546263
773 0 $t Dissertations Abstracts International $g 83-12B.
790 $a 1417
791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29160876