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Artículo

Individual growth rates in natural field vole, Microtus agrestis, populations exhibiting cyclic population dynamics

Burthe, Sarah Janette; Lambin, Xavier; Telfer, Sandra; Douglas, Alex; Beldomenico, Pablo MartínIcon ; Smith, Andrew; Begon, Michael
Fecha de publicación: 02/2010
Editorial: Springer
Revista: Oecologia
ISSN: 0029-8549
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Rodents that have multi-annual cycles of density are known to have flexible growth strategies, and the "Chitty effect", whereby adults in the high-density phase of the cycle exhibit larger average body mass than during the low phase, is a well-documented feature of cyclic populations. Despite this, there have been no studies that have repeatedly monitored individual vole growth over time from all phases of a density cycle, in order to evaluate whether such variation in body size is due to differences in juvenile growth rates, differences in growth periods, or differential survival of particularly large or small voles. This study compares growth trajectories from voles during the peak, increase and crash phases of the cycle in order to evaluate whether voles are exhibiting fast or slow growth strategies. We found that although voles reach highest asymptotic weights in the peak phase and lowest asymptotes during the crash, initial growth rates were not significantly different. This suggests that voles attain larger body size during the peak phase as a result of growing for longer.
Palabras clave: Body Size , Chitty Effect , Juvenile Growth , Multi-Annual Density Cycles , Rodent
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/64311
DOI: http://dx.doi.org/10.1007/s00442-009-1495-6
URL: https://link.springer.com/article/10.1007%2Fs00442-009-1495-6
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Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Burthe, Sarah Janette; Lambin, Xavier; Telfer, Sandra; Douglas, Alex; Beldomenico, Pablo Martín; et al.; Individual growth rates in natural field vole, Microtus agrestis, populations exhibiting cyclic population dynamics; Springer; Oecologia; 162; 3; 2-2010; 653-661
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