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Population dynamics of the endangere...

State University of New York College of Environmental Science and Forestry., Envrionmental & Forest Biology.

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Population dynamics of the endangered Karner blue butterfly (Lycaeides melissa samuelis Nabokov).

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Population dynamics of the endangered Karner blue butterfly (Lycaeides melissa samuelis Nabokov)./
作者:	Fuller, Steven G.
面頁冊數:	173 p.
附註:	Adviser: Donald J. Leopold.
Contained By:	Dissertation Abstracts International69-06B.
標題:	Biology, Ecology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3313482
ISBN:	9780549664208

Population dynamics of the endangered Karner blue butterfly (Lycaeides melissa samuelis Nabokov).
Fuller, Steven G.

Population dynamics of the endangered Karner blue butterfly (Lycaeides melissa samuelis Nabokov). - 173 p.

Adviser: Donald J. Leopold.

Thesis (Ph.D.)--State University of New York College of Environmental Science and Forestry, 2008.

Urbanization and fragmentation in extant eastern U.S. populations may limit Karner blue recovery. My objectives were to: (1) conduct a mark-release-recapture study (MRR) in New York and analyze a time series from New Hampshire to investigate the influence of Allee dynamics and fragmentation on metapopulations; (2) parameterize a stage matrix; (3) conduct a life table simulation analysis (LSA) to evaluate the implications of Karner blue life history for recovery alternatives; (4) conduct a population viability analysis (PVA) to evaluate metapopulation sensitivity to fragmentation and other risks; and (5) derive minimum viable population size (MVP).

ISBN: 9780549664208Subjects--Topical Terms:

1017726
Biology, Ecology.

Population dynamics of the endangered Karner blue butterfly (Lycaeides melissa samuelis Nabokov).
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100 1 $a Fuller, Steven G. $3 1018705
245 1 0 $a Population dynamics of the endangered Karner blue butterfly (Lycaeides melissa samuelis Nabokov).
300 $a 173 p.
500 $a Adviser: Donald J. Leopold.
500 $a Source: Dissertation Abstracts International, Volume: 69-06, Section: B, page: 3367.
502 $a Thesis (Ph.D.)--State University of New York College of Environmental Science and Forestry, 2008.
520 $a Urbanization and fragmentation in extant eastern U.S. populations may limit Karner blue recovery. My objectives were to: (1) conduct a mark-release-recapture study (MRR) in New York and analyze a time series from New Hampshire to investigate the influence of Allee dynamics and fragmentation on metapopulations; (2) parameterize a stage matrix; (3) conduct a life table simulation analysis (LSA) to evaluate the implications of Karner blue life history for recovery alternatives; (4) conduct a population viability analysis (PVA) to evaluate metapopulation sensitivity to fragmentation and other risks; and (5) derive minimum viable population size (MVP).
520 $a Fragmentation effects observed in the MRR include null migration to roadside areas (males=46%; females=50%) and migration rates ranging from 45% in small isolated habitat patches to 2% in the largest. In New Hampshire, Allee dynamics limited egg and larval yield prior to extirpation. The two studies indicate that colonization and persistence of small isolated patches are tenuous in fragmented systems.
520 $a Few species with complex life cycles and non-overlapping generations have been studied using LSA. Most LSA studies emphasize elasticities of the intrinsic rate of increase (lambda); 53% of Karner blue matrix replicates had lambda<1. To complement lambda, I analyzed reproductive values, which weight the fitness of each life stage. Fitness of the oviposition rate alternated between latent and senescent females across extremes in lambda. Butterfly foraging theory predicts that larval vs. adult foraging strategies control the timing of ovipositing. Alternating fitness between stages demonstrates a mechanism for natural selection on foraging strategies, and may be an uncommon example of disruptive selection. Management targeted at optimizing foraging opportunities and enhancing ovipositing fitness may significantly stimulate population growth; negative growth will likely result from adverse change in environmental pressures.
520 $a I ranked habitat loss and null migration as catastrophic risks, with egg and larval mortality second. Endangered species recovery plans require MVP, but few report them. Population managers require absolute targets in order to prescribe adequate habitat management and design preserves. I developed a theoretical framework for relating PVA results to absolute Karner blue abundance and habitat requirements, allowing hypotheses about progress toward MVPs to be tested.
520 $a Keywords: Lycaeides melissa samuelis, dispersal, fragmentation, metapopulation, road effect, demographic stochasticity, reproductive value, fitness, life history, stage matrix, population viability analysis, life table simulation analysis, minimum viable population, foraging, ovipositing
590 $a School code: 0213.
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Biology, Entomology. $3 1018619
690 $a 0329
690 $a 0353
710 2 $a State University of New York College of Environmental Science and Forestry. $b Envrionmental & Forest Biology. $3 1018704
773 0 $t Dissertation Abstracts International $g 69-06B.
790 $a 0213
790 1 0 $a Gibbs, James P. $e committee member
790 1 0 $a Leopold, Donald J., $e advisor
790 1 0 $a Underwood, H. Brian $e committee member
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3313482