Temporal niche overlap of a riparian forest bat assemblage in subtropical Mexico

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Julio César Arriaga-Flores
Iván Castro-Arellano
Arnulfo Moreno-Valdez
Alfonso Correa-Sandoval

Resumen

Use of time as mediator of ecological interactions is important but has been poorly studied and has received less attention than other niche axes. We characterized and compared patterns of activity, and temporal activity overlap of a bat assemblage at a riparian forest from La Peregrina Canyon, Tamaulipas, Mexico. Bats were captured during twenty one-nights, distributed over a year, using mistnets. Nets were opened before sunset and closed 13 h later, being checked every 30 min. A total of 22 species were recorded, with Sturnira lilium, Desmodus rotundus, S. ludovici, Artibeus lituratus and Pteronotus davyi, as the most abundant species. The activity of D. rotundus was different from other abundant species, except with A. lituratus with whom had a high activity overlap. Within the assemblage, the highest temporal overlap was between S. lilium and S. ludovici. Among common guilds, frugivores showed a different pattern from that of insectivores and sanguinivores. Although riparian zones mainly provide roost, food and water, they also provide protection along streams, therefore are used as a flight corridor. This is the first study that analyzes temporal use by neotropical bats of a riparian habitat using null model analysis with different time resolutions.

 

key words: activity patterns, chiroptera, chronoecology, community structure, La Peregrina Canyon, Mexico, null models.

 

La repartición del nicho temporal puede ser un mecanismo viable para la coexistencia de las espe- cies, pero ha sido pobremente estudiado y recibido menor atención que otros ejes (i.e. alimento y espacio). En este estudio caracterizamos y comparamos patrones de actividad y sobrelapamiento de actividad temporal en un ensamblaje de murciélagos del bosque ripario en el cañón de La Peregrina, Tamaulipas, México. Se capturaron murciélagos durante veintiuna noches utilizando redes de niebla. Las redes se abrieron antes de la puesta del sol, se cerraron 13 hr después, y se revisaron cada 30 min. Se registraron un total de 22 especies, con Sturnira lilium, Desmodus rotundus, S. ludovici, Artibeus lituratus y Pteronotus davyi, como las especies más abundantes. La actividad de D. rotundus fue diferente a la del resto de especies abundantes, con excepción de A. lituratus con quién presento el mayor sobrelapamiento de actividad. Dentro del ensamblaje, el más alto sobrelapamiento temporal fue entre S. lilium y S. ludovici. A través de gremios tróficos, los frugívoros mostraron un patrón diferente al de insectívoros y sanguinívoros. Aunque las zonas riparias proporcionan principalmente refugio, alimento y agua, también brindan protección a lo largo de arroyos, por lo tanto son utilizadas como un corredor de desplazamiento. Este es el primer estudio que analiza el uso temporal por murciélagos neotropicales de un hábitat ripario utilizado análisis de modelo nulo con diferentes resoluciones de tiempo.

 

palabras clave: patrones de actividad, Chiroptera, cronoecología, estructura de comunidades, Cañón La Peregrina, México, modelos nulos.

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Adams, J.k. 1989. Pteronotus davyi. Mammalian species, 346:1-5.

Altringham, J.D. 1996. Bats: Biology and Behaviour. Oxford University, Oxford.

Arroyo-Cabrales, J. and S. pérez. 2008. choeronycteris mexicana, in: iUcn. 2011. iUcn Red list of threatened species. Version 2011.2. (Downloaded on December, 2011, www.iucnredlist.org).

Avila-Cabadilla, L.D., G.A. SanchezAzofeifa, k.E. Stoner, M.y. Alvarez-Añorve,M. quesada and C.A portillo-quintero. 2012. Local and landscape factors determining occurrence of Phyllostomid bats in Tropical secondary forests. Plos one, 7: e35228.

Barbour, R.W. and W.H. Davis.1969. Bats of america. University of Kentucky, Lexington. Kentucky.

Berger, W.H. and F.L. parker. 1970. Diversity of planktonic foraminifera in deep-sea sediments. science, 168:1345–1347.

Bernard, E. and M.B. Fenton. 2003. Bat mobility and roosts in a fragmented landscape in central Amazonia, Brazil. Biotropica, 35: 262– 272.

Bianconi, G.V., S.B. Mikich and W.A. pedro. 2006. Movements of bats (Mammalia, Chiroptera) in Atlantic forest remnants in southern Brazil. Revista Brasileira de zoologia, 23:1199-1206.

Brown, J.H. 1968. Activity patterns of some neotropical bats. Journal of Mammalogy, 49:754–757.

Camargo, J.A. 1993. Must dominance increase with the number of subordinate species in competitive interactions? Journal of theoretical Biology, 161:537–542.

Castro-Arellano, I. and T.E. Jr. Lacher. 2009. Temporal niche segregation in two rodent assemblages of subtropical Mexico. Journal of tropical ecology, 25:593–603.

Castro-Arellano, I., S.J. presley, L.N. Saldanha, M.R. Willig and J.M. Wunderle. 2007. Effects of low-intensity logging on bat biodiversity in Terra Firme forest of lowland Amazonia. Biological conservation, 138:269–285.

Castro-Arellano, I., S.J. presley, M.R. Willig, J.M. Wunderle and L.N. Saldanha. 2009. Reduced-impact logging and temporal activity of understorey bats in lowland Amazonia. Biological conservation, 142:2131–2139.

Castro-Arellano, I., T.E. Jr. Lacher, M.R. Willig and T.F. Rangel. 2010. Assessment of assemblage-wide temporal niche segregation using null models. Methods in ecology and evolution, 1:311-318.

Charles-Dominique, p. 1986. Inter-relations between frugivorous vertebrates and pioneer plants: Cecropia, birds and bats in French Guyana. Pp. 119–135, in: Frugivores and seed dispersal (A. Estrada and T.H. Fleming, eds.). Junk, Dordrecht, Netherlands.