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Variation in body size and metamorphic traits of Iberian spadefoot toads over a short geographic distance
(Wiley Blackwell Publishing, Inc, 2008-06)
Determinants of geographic variation in body size are often poorly understood, especially in organisms with complex life cycles. We examined patterns of adult body size and metamorphic traits variation in Iberian spadefoot ...
Seasonality drives body size variation in a widely distributed Neotropical treefrog
(2020-01-01)
It is well known that body size variation can be related to genetic and environmental factors and that this variation may occur among species, and among and within populations. Scinax fuscomarginatus is a widely distributed ...
Intraspecific variation in erythrocyte sizes among populations of Hypsiboas cordobae (Anura, Hylidae).
(Firenze University Press, 2013-12)
We studied the morphology and size of erythrocytes of H. cordobae, and analysed the geographic variation of this character along the distribution of the species, in relation to the latitudinal and altitudinal distances. ...
Tooth Size Variation in Assemblages of Tremacyllus (Hegetotheriidae, Notoungulata): Insights into Geographical Gradients, Systematics, and Sexual Dimorphism
(Springer, 2021-09)
Tooth size variation within fossil assemblages can be associated with intra- or interspecific variation, functional, developmental, and geographical factors, and/or sexual dimorphism. Understanding these sources of variation ...
The effect of seed traits on geographic variation in body size and sexual size dimorphism of the seed-feeding beetle Acanthoscelides macrophthalmus
(Wiley-Blackwell, 2016)
Explaining large-scale patterns of variation in body size has been considered a central question in ecology and evolutionary biology because several life-history traits are directly linked to body size. For ectothermic ...
Variation in the size of eggs of Chubut Steamer Ducks (Tachyeres leucocephalus)
(Csiro Publishing, 2012)
Although several studies have analysed spatial or temporal variation in the size of eggs in waterfowl (Anseriformes), no study has analysed variation throughout the breeding range of a species. Chubut Steamer Ducks (Tachyeres ...
Variation in the size of eggs of Kelp Gulls (Larus dominicanus) at two colonies in Patagonia, Argentina
(Waterbird Soc, 2015)
Although several studies have reported basic information about the size of Kelp Gull (Larus dominicarius) eggs, no attention has been paid to the comparison of patterns of intra-clutch variation at different breeding sites. ...
Size variation ofAcacia caven (leguminosae) pods along a climatic gradient in Chile
(1981)
A southward tendency of increment in pod-length is shown for 11 populations ofAcacia caven (Mol.) Hook et Arn. localized along a climatic gradient of increasing annual rainfall in Chile. This fact would suggest thatA. caven ...
GEOGRAPHIC-VARIATION IN PROECHIMYS-DIMIDATUS (GUENTHER) (RODENTIA, ECHIMYIDAE)
(Gustav Fischer Verlag JenaJenaAlemanha, 1990)