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Now showing items 31-40 of 3804
Sexual size dimorphism and testis size allometry in tuco-tucos (Rodentia: Ctenomyidae)
(Walter de Gruyter & Co, 2013-02)
We studied sexual size dimorphism (SSD) and testes size allometry in 97 natural populations, including 39 nominal species and 19 unnamed or undescribed forms, of tuco-tucos ( Ctenomys ) from Argentina, Bolivia, Chile, ...
Evolution of body size in sloths and anteaters (Xenarthra, Pilosa): phylogeny, metabolism, diet and substrate preferences
(The Royal Society of Edinburgh, 2017)
Fishing-down within populations harms seed dispersal mutualism
(2018-03-01)
Large fish are often the most effective seed dispersers, but they are also the preferred target for fisheries. We recently started to comprehend the detrimental impacts of the extirpation of large frugivorous fish species ...
Evolution of body size in anteaters and sloths (Xenarthra, Pilosa): Phylogeny, metabolism, diet and substrate preferences
(Royal Society of Edinburgh, 2017-02)
Pilosa include anteaters (Vermilingua) and sloths (Folivora). Modern tree sloths are represented by two genera, Bradypus and Choloepus (both around 4-6 kg), whereas the fossil record is very diverse, with approximately 90 ...
Size-Dependent Selective Mechanisms on Males and Females and the Evolution of Sexual Size Dimorphism in Frogs
(Univ Chicago Press, 2014-12-01)
Sexual size dimorphism (SSD) varies in animals from male biased to female biased. The evolution of SSD is potentially influenced by a number of factors, such as territoriality, fecundity, and temporal breeding patterns ...
Fight versus flight: the interaction of temperature and body size determines antipredator behaviour in tegu lizards
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010)
Ectotherm antipredator behaviour might be strongly affected both by body temperature and size: when environmental temperatures do not favour maximal locomotor performance, large individuals may confront predators, whereas ...
Fight versus flight: the interaction of temperature and body size determines antipredator behaviour in tegu lizards
(Academic Press Ltd Elsevier B.V. Ltd, 2010-01-01)
Ectotherm antipredator behaviour might be strongly affected both by body temperature and size: when environmental temperatures do not favour maximal locomotor performance, large individuals may confront predators, whereas ...
Inter- and Intraspecific Geographic Variation of Body Size in South American Redbelly Toads of the Genus Melanophryniscus Gallardo, 1961 (Anura: Bufonidae)
(Society for the Study of Amphibians and Reptiles, 2011-03)
Amphibians show strong dependence on environmental variables (water balance, temperature). However, interactions affecting geographic distribution of body size are poorly known. We present an analysis of body size within ...