Minimal Genetic Structure in the Rio Grande Cooter (Pseudemys Gorzugi) (Notes) (Report) Minimal Genetic Structure in the Rio Grande Cooter (Pseudemys Gorzugi) (Notes) (Report)

Minimal Genetic Structure in the Rio Grande Cooter (Pseudemys Gorzugi) (Notes) (Report‪)‬

Southwestern Naturalist 2008, Sept, 53, 3

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Beschreibung des Verlags

ABSTRACT--Extensive surveys of recent occurrences of Pseudemys gorzugi and its likely historical distribution in the Rio Grande Basin reveal a low population density and a paucity of juveniles. Genetic analyses of the mitochondrial ND4 gene and five microsatellite DNA markers indicate the population may be relatively homogeneous throughout its range. In addition, research shows evidence of multiple threats common to chelonian populations, including habitat degradation, introduction of fire ants, and commercial collection for the pet trade. This research provides state management authorities with essential data to determine if additional conservation efforts are necessary to protect this unique species. RESUMEN--Muestreos intensivos de la distribucion historica y actual de Pseudemys gorzugi en la cuenca del rio Bravo revelan una baja abundancia poblacional y pocos juveniles. Analisis geneticos del gen mitocondrial ND4 y cinco marcadores microsatelite de ADN indican que la poblacion puede ser relativamente homogenea a traves de su distribucion. Ademas, la investigacion muestra evidencia de multiples amenazas que comunmente afectan poblaciones de tortugas, incluyendo la degradacion del habitat, la introduccion de hormigas de fuego, y la colecta comercial para el mercado de mascotas. Esta investigacion provee a las autoridades estatales informacion esencial para determinar si es necesario incrementar los esfuerzos de conservacion para proteger a esta especie unica.

GENRE
Wissenschaft und Natur
ERSCHIENEN
2008
1. September
SPRACHE
EN
Englisch
UMFANG
15
Seiten
VERLAG
Southwestern Association of Naturalists
GRÖSSE
81,6
 kB

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