Zoogeographic Implications of the Rediscovery of the Percid Genus Ammocrypta in the Tennessee River Drainage

Starnes, Wayne C.; Etnier, David A.; Starnes, Lynn B.; Douglas, Neil H.

doi:10.2307/1443193

Cited by 11 publications

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“…In particular, it can be challenging to determine whether a rare species has been locally extirpated or is present at low abundances but undetected (Etnier 1994;Kery 2002). If detection probability is low, a time series of observations may overestimate population variability (Link and Nichols 1994) or even give the impression of successive extirpations and recolonizations at a site that has in fact been continuously occupied (Starnes et al 1977;Etnier 1994). Additionally, an incorrect determination of extirpation could lead to failure to protect or properly manage a site that is important to the survival of a species (Kery 2002).…”

Section: Introductionmentioning

confidence: 99%

Use of recent and historical records to estimate status and trends of a rare and imperiled stream fish, Percina jenkinsi (Percidae)

Hagler

Freeman

Wenger

et al. 2011

Can. J. Fish. Aquat. Sci.

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Rarely encountered animals may be present but undetected, potentially leading to incorrect assumptions about the persistence of a local population or the conservation priority of a particular area. The federally endangered and narrowly endemic Conasauga logperch (Percina jenkinsi) is a good example of a rarely encountered fish species of conservation concern, for which basic population statistics are lacking. We evaluated the occurrence frequency for this species using surveys conducted with a repeat-observation sampling approach during the summer of 2008. We also analyzed museum records since the late 1980s to evaluate the trends in detected status through time. The results of these analyses provided support for a declining trend in this species over a portion of its historical range, despite low estimated detection probability. We used the results to identify the expected information return for a given level of monitoring where the sampling approach incorporates incomplete detection. The method applied here may be of value where historic occurrence records are available, provided that the assumption of constant capture efficiency is reasonable.Résumé : Les animaux qui sont rarement rencontrés peuvent être présents mais non détectés, ce qui mène à des conclusions erronées sur la persistance des populations locales ou sur les priorités de conservation d'une région particulière. Le dardperche de Conasauga (Percina jenkinsi), une espèce figurant sur la liste fédérale des espèces menacées et possédant une ré-partition endémique étroite, est un bon exemple d'une espèce de poisson rarement observée, dont la conservation suscite des inquiétudes et pour laquelle il n'existe pas de statistiques de base. Nous évaluons la fréquence d'occurrence de cette espèce d'après des inventaires par la méthode d'échantillonnage par observations répétées réalisés en 2008. Nous analysons aussi des données de musée depuis la fin des années 1980 afin de déterminer les tendances dans le statut de détection en fonction du temps. Les résultats de ces analyses semblent confirmer une tendance vers le déclin chez cette espèce sur une partie de son aire historique de répartition, malgré la faible probabilité de détection estimée. Nous utilisons les résultats pour déterminer le retour d'information à espérer en fonction d'un niveau de surveillance donnée lorsque la méthodologie d'échantillonnage tient compte d'une détection incomplète. La méthode que nous utilisons peut être intéressante dans les cas où des données historiques d'occurrence sont disponibles, à la condition qu'on puisse assumer raisonnablement que l'efficacité de capture est constante.[Traduit par la Rédaction]

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Section: Introductionmentioning

confidence: 99%

Use of recent and historical records to estimate status and trends of a rare and imperiled stream fish, Percina jenkinsi (Percidae)

Hagler

Freeman

Wenger

et al. 2011

Can. J. Fish. Aquat. Sci.

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“…In the Ohio River drainage it has a fragmented distribution with records from the Wabash River in Indiana, the Cumberland, Green, Kentucky and Big Sandy rivers in Kentucky (Williams, 1975;Burr and Warren, 1986;Cicerello and Laudermilk, 1996), and the upper Tennessee River in Tennessee (Starnes et al, 1977) and Virginia (Jenkins and Burkhead, 1994). Within the Ohio River drainage, A. clara is sympatric with its sister species, Ammocrypta pellucida (eastern sand darter), in only a few river systems (Near et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Following the research of Williams (1975), additional Ohio River drainage populations of Ammocrypta clara were discovered in 1976 and 1979 in the Powell and Clinch rivers, respectively, of the upper Tennessee River (Starnes et al, 1977;Jenkins and Burkhead, 1994). Additionally, Cicerello and Laudermilk (1996) rediscovered A. clara in the Green River and documented the first Kentucky River occurrence during the mid 1990s.…”

Section: Introductionmentioning

confidence: 99%

“…The records from the upper Tennessee River system were the first in 85 y of Ammocrypta in this drainage despite numerous past sampling efforts at or near the same collection sites and throughout the drainage. An unverified and missing historic collection of A. pellucida by Woolman (1892) was the only previous Ammocrypta record known from the Tennessee basin, and was collected near the locality of the A. clara specimens of Starnes et al (1977). The A. pellucida record of Woolman (1892) was likely based on A. clara, as he did not differentiate between the two species (Willliams 1975).…”

Section: Introductionmentioning

confidence: 99%

“…The A. pellucida record of Woolman (1892) was likely based on A. clara, as he did not differentiate between the two species (Willliams 1975). Starnes et al (1977) speculated that the western sand darter existed in main channels of the Powell River prior to impoundments and persisted as a relict in sandy habitat of the upper tributaries.…”

Section: Introductionmentioning

confidence: 99%

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Discovery of Ammocrypta clara (Western Sand Darter) in the Upper Ohio River of West Virginia

Cincotta

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2010

The American Midland Naturalist

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Population genomics reveal low differentiation and complex demographic histories in a highly fragmented and endangered freshwater mussel

Gladstone

Garrison

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et al. 2022

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1. Freshwater mussels are an important element of freshwater biodiversity and provide essential ecosystem services. However, mussels are among the most imperilled groups of organisms in the world. Although research has increased in recent years, information about range-wide genetic diversity and historical demography of most species is lacking. One such species is Cumberlandian combshell Epioblasma brevidens, which is listed as endangered under the US Endangered Species Act.2. Genetic diversity of E. brevidens was analysed using a high-resolution RADseq approach and included the previously overlooked Bear Creek population.

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Zoogeographic Implications of the Rediscovery of the Percid Genus Ammocrypta in the Tennessee River Drainage

Cited by 11 publications

References 0 publications

Use of recent and historical records to estimate status and trends of a rare and imperiled stream fish, Percina jenkinsi (Percidae)

Use of recent and historical records to estimate status and trends of a rare and imperiled stream fish, Percina jenkinsi (Percidae)

Discovery of Ammocrypta clara (Western Sand Darter) in the Upper Ohio River of West Virginia

Population genomics reveal low differentiation and complex demographic histories in a highly fragmented and endangered freshwater mussel

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