Arid
DOI10.1093/czoolo/60.4.527
How territoriality affects the density of an egg predator: Habitat renovation and reintroduction as a method of conserving two endangered desert spring fish
Paciorek, Timothy; Al-Shaer, Layla; Itzkowitz, Murray
通讯作者Paciorek, Timothy
来源期刊CURRENT ZOOLOGY
ISSN1674-5507
出版年2014
卷号60期号:4页码:527-533
英文摘要

Conservation of endangered sympatric species must be carefully executed to ensure that the protection of one species does not negatively impact the survival of another. Critically endangered Pecos gambusia Gambusia nobilis and Leon Springs pupfish Cyprinodon bovinus, which are endemic to a threatened desert spring habitat, exemplify one such scenario. Recently, this habitat has been expanded, and captively bred C. bovinus were released to repopulate an area historically known to contain this species. A previous study suggested that G. nobilis are detrimental to C. bovinus populations, due to their tendency to congregate near spawning pairs and feed on their eggs. Whether G. nobilis are attracted to territorial C. bovinus, regardless of spawning behavior, remains unclear. To determine this, the number of G. nobilis in occupied and unoccupied breeding territories of both wild and captively bred C. bovinus was measured. Gambusia nobilis densities were similar between unoccupied and occupied territorial sites, suggesting that they do not show a preference for C. bovinus territories. Regardless of habitat location or prior captivity, territorial C. bovinus significantly excluded G. nobilis within their direct vicinity ( 5 cm), but not from their entire territory. Decreased G. nobilis density within the habitat may allow C. bovinus to defend their breeding territories more readily during the summer spawning season. This study provides empirical evidence of captively raised individuals behaving similarly to wild individuals upon reintroduction to their natural habitat and support for conservation methods that focus on common limiting factors between endangered species


英文关键词Pupfish Gambusia Habitat Conservation Territory Density
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000340840700010
WOS关键词PUPFISH CYPRINODON ; BREEDING TERRITORIES ; REPRODUCTIVE SUCCESS ; CONSERVATION ; POPULATIONS ; COMPETITION ; MANAGEMENT ; EVOLUTION ; CONFLICT ; RECOVERY
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181535
作者单位Lehigh Univ, Dept Biol Sci, Bethlehem, PA 18015 USA
推荐引用方式
GB/T 7714
Paciorek, Timothy,Al-Shaer, Layla,Itzkowitz, Murray. How territoriality affects the density of an egg predator: Habitat renovation and reintroduction as a method of conserving two endangered desert spring fish[J],2014,60(4):527-533.
APA Paciorek, Timothy,Al-Shaer, Layla,&Itzkowitz, Murray.(2014).How territoriality affects the density of an egg predator: Habitat renovation and reintroduction as a method of conserving two endangered desert spring fish.CURRENT ZOOLOGY,60(4),527-533.
MLA Paciorek, Timothy,et al."How territoriality affects the density of an egg predator: Habitat renovation and reintroduction as a method of conserving two endangered desert spring fish".CURRENT ZOOLOGY 60.4(2014):527-533.
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