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handle: 10261/116740
[EN] Larval development of Rana perezi has be en studied at three temporary ponds in León province (NW Spain). Larvae are found from May to September. Growth rates varied between ponds. Metamorphosed individuals were found from July to September. Variation between ponds in growth rates and seasonal variation in metamorphic size in each pond agrees with Wilbur and Collins model. Rana perezi breeds late in the season at temporary ponds and responds to unpredictable duration of aquatic habitats by means of variation in developmental rates and metamorphic size of larval populations.
[ES] El período larvario de Rana perezi en lagunas temporales de la provincia de León tiene lugar entre Mayo y Septiembre. Se ha encontrado variación en las tasas de crecimiento larvario entre charcas. Se han encontrado individuos metamórficos desde Julio a Septiembre. Las tasas de crecimiento larvario y las variaciones de la talla metamórfica parecen ajustarse al modelo de Wilbur y Collins. Rana perezi se reproduce tardíamente en medios temporales y responde a su duración impredecible mediante variación de las tasas de crecimiento larvario y de la talla metamórfica.
Recibido 17 sep. 1990; revisado 28 ene. 1991; aceptado 22 febo 1991.
Peer reviewed
Talla metamórfica, Rana perezi, Metamorphic size, Medios temporales, Larval development, NW Spain, Desarrollo larvario, Temporary ponds, NO España
Talla metamórfica, Rana perezi, Metamorphic size, Medios temporales, Larval development, NW Spain, Desarrollo larvario, Temporary ponds, NO España
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