Acta Zoológica Mexicana (n. s.) 28(2): 270-279 (2012)
DISTRIBUCIÓN Y ABUNDANCIA DE LA NUTRIA NEOTROPICAL (LONTRA LONGICAUDIS ANNECTENS) EN TLACOTALPAN, VERACRUZ, MÉXICO
Arellano Nicolás, E., E. Sánchez Núñez & M. A. Mosqueda Cabrera.
RESUMEN
Durante la temporada de nortes y huracanes en el año 2007, y la de secas en 2008, se documentó la presencia y abundancia de la nutria neotropical (Lontra longicaudis annectens) en Tlacotalpan, Veracruz, por medio de monitoreos en dos zonas (i) las orillas del Río Papaloapan, y (ii) en los márgenes de arroyos y lagunas cercanas a la localidad. Complementariamente se realizaron entrevistas a pobladores de la localidad para obtener información sobre aspectos biológicos de la especie. Se localizaron 61 heces, 13 letrinas, dos madrigueras, y se registró el avistamiento de dos individuos. Para las dos zonas monitoreadas se estiman abundancias de 1.22 y 0.61 nutrias/km en noviembre de 2007 mientras en abril de 2008 se estiman 0.43 y 0.21 nutrias/km respectivamente. El 100% de los entrevistados conoce a la nutria de río y 99% considera que es relevante su protección, porque cumple con una función importante en el ecosistema.
ABSTRACT
Presence and abundance of the neotropical otter (Lontra longicaudis annectens) were established in the locality of Tlacotalpan, Veracruz, during north and hurricane seasons in 2007 and dry season in 2008, where it was carried out a monitoring process in two zones (i) the Papaloapan River margins, and (ii) streams and lagoons near to the locality. Furtheremore, interviews to local inhabitants were carried out in order to obtain information about biological aspects of the species based on the local knowledge shown by the inhabitants. On the other hand, 61 feces, 13 latrines, and two borrows were located. Moreover, two individuals were observed and recorded. During November 2007 the abundance recorded in two zones within the study area was 1.22 and 0.61 otters/km. In April 2008 the same two zones showed 0.43 and 0.21 otters/km. Finally, 100% of the interviewees know the river otter, and 99% of them consider that the species is relevant to the aquatic ecosystems and it must be protected.
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