On the validity of bergmann's rule

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August undefined, 2024

WebA famous ecogeographical rule is the Bergmann's rule, which postulates that body size increases in colder temperatures within homeothermic species and that the latitude is a good predictor of size ...

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WebOn the validity of Bergmann’s rule Shai Meiri* and Tamar Dayan Department of Zoology, Tel Aviv University, Tel Aviv, Israel Abstract Aim We reviewed the occurrence of … Web5 de set. de 2013 · Whether or not climate plays a causal role in mammal body-size evolution is one of the longest-standing debates in ecology. Bergmann's Rule, the longest-standing modeladdressing this topic, posits that geographic body-mass patterns are driven by temperature, whereas subsequent research has suggested that other ecological … chipre hoy

The species-area relationship and Bergmann’s rule: attempts to ...

WebPDF On May 1, 1998, CB Marcondes and others published The usefulness of Bergmann's rule for the distinction of members of Lutzomyia intermedia species complex ... The possible non-validity of. WebFor endotherms, Bergmann's rule (endothermic vertebrates tend to be represented by larger forms in the colder parts of their range than in the warmer parts; Lincoln et al., … WebBergmann's rule is a classic example of adaptive geographic variation [45,46], nevertheless, the extent to which Bergmann's rule applies is still debated, particularly in … chipre horario

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Web14 de fev. de 2007 · Geographic body size variation was analysed in males and females of 19 populations of the South American grasshopper Dichroplus vittatus Bruner spanning 20 degrees of latitude and 2700 m of altitude. Using mean and maximum body length of each sex and factors obtained from principal components analyses of six morphometric linear … Web1 de mar. de 2003 · On the validity of Bergmann's rule. Shai Meiri, T. Dayan. Published 1 March 2003. Environmental Science, Biology, Chemistry. Journal of Biogeography. Aim … grape twoWebtem by applying the Aharonov, Bergmann and Lebowitz (ABL) rule [2]. Following Sharp and Shanks [3] he proves that the ABL rule is not valid in general by showing that in a … chip reid cbs

"WebBergmann's rule is an ecogeographical rule that states that within a broadly distributed taxonomic clade, populations and species of larger size are found in colder environments, while populations and species of smaller size are found in warmer regions.Bergmann's rule only describes the overall size of the animals, but does not include body parts like Allen's … " - On the validity of bergmann's rule

On the validity of bergmann's rule

[PDF] The validity of ecogeographical rules is context-dependent ...

Webfollow Bergmann's rule, while in mammals the lower body size categories (4-50 and 50-500 g) show a significantly lower tendency to conform to the rule. Sedentary birds tend to conform to Bergmann's rule more than migratory species. Nest type does not affect the tendency to conform to Bergmann's rule. WebOn the validity of Bergmann's rule. On the validity of Bergmann's rule. Shai Meiri. 2003, Journal of Biogeography. Aim We reviewed the occurrence of Bergmann's rule in birds (ninety-four species) and mammals (149 species), using only studies where statistical significance of the results was tested.

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WebBergmann's rule is an ecogeographic principle. It states that, within a widely distributed group of animals, the larger ones are found in colder environments, and the smaller ones are found in warmer regions. So, for example, with bears the largest member is the polar bear, and the smallest members are found in subtropical areas ( panda ). Webthe validity of Bergmann’s rule in North American fresh-water ﬁshes using a novel data source—record angling weights, and (2) examine the expression of Bergmann’s rule in …

WebBergmann's rule states that individuals of a species/clade at higher altitudes or latitudes will be larger than those at lower ones. A systemic review of the known literature on inter- … WebOn the validity of Bergmann’s rule Shai Meiri* and Tamar Dayan Department of Zoology, Tel Aviv University, Tel Aviv, Israel Abstract Aim We reviewed the occurrence of Bergmann’s rule in birds (ninety-four species) and mammals (149 species), using only studies where statistical signiﬁcance of the results was tested.

WebJSTOR Home Web6 de dez. de 2007 · Natalia Gutiérrez‐Pinto, Kevin G. McCracken, Luis Alza, Pablo Tubaro, Cecilia Kopuchian, Andrea Astie and Carlos Daniel Cadena, The validity of ecogeographical rules is context‐dependent: testing for Bergmann's and Allen's rules by latitude and elevation in a widespread Andean duck, Biological Journal of the Linnean …

WebWe tested the validity of Bergmann's rule and Rosenzweig's hypothesis through an analysis of the geographical variation of the skull size of Otaria flavescens along the entire distribution range of the species (except Brazil). We quantified the sizes of 606 adult South American sea lion skulls measu …

Web1 de abr. de 2014 · We found a negative relationship between body size and temperature across latitude consistent with Bergmann's rule, whereas there was a positive relationship between these variables along replicate elevational gradients at different latitudes. Limb-size variation did not support Allen's rule along latitude, nor along elevation. grape type crossword clueWeb30 de jan. de 1995 · Jablonski D (1997) Body-size evolution in Cretaceous molluscs and the status of Cope's rule, Nature, 10.1038/385250a0, 385:6613, (250-252), Online publication date: 1-Jan-1997. Gaston K and Blackburn T (1997) The spatial distribution of threatened species: macro-scales and New World birds , Proceedings of the Royal Society of London. grape type crosswordWebBergmann's rule is an ecogeographic principle. It states that, within a widely distributed group of animals, the larger ones are found in colder environments, and the smaller ones … chipre infopediaWebThe validity of Bergmann's rule - which describes the intraspecific increase in body size with increasing altitude - was studied in a several populations of three European newt species. There was ... chip reinhardt attorney durham ncWeb28 de mar. de 2014 · In conclusion, we found support for Bergmann's rule in torrent ducks in relation to variation in temperature existing across latitudes, although our data showed … chipre hotelesWebBergmann’s rule states that organisms at higher altitudes should be larger and thicker than those present near the equator. For eg., the population of white-tailed deer is larger in … chip reilly barnstable countyWebBergmann’s Rule, in zoology, principle correlating external temperature and the ratio of body surface to weight in warm-blooded animals. Birds and mammals in cold regions … chipre language