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A test of Allen's rule in ectotherms: the case of two south American Melanopline Grasshoppers (Orthoptera: Acrididae) with partially overlapping geographic ranges Neotropical Entomology
Bidau,Claudio J.; Martí,Dardo A..
We studied the geographic variation of three morphometric characters in relation to body size in two South American grasshoppers (Acrididae), Dichroplus vittatus Bruner and D. pratensis Bruner to test Allen's rule in these ectotherms. Since both species follow the converse to Bergmann's rule owing to latitudinal and/or altitudinal variation in time available for growth and reproduction, geographic variation in body size proportions of protruding parts may obey to differential allometric growth in different geographic areas. Alternatively, it could reflect true Allenian variation related to thermoregulation. Body proportions were studied by correlation/regression analyses with geographic and climatic variables. In D. pratensis, body proportions increased...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometry; Body proportion; Body size; Dichroplus; Geographic variation.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000400004
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Aleuas uruguayensis Carbonell (Orthoptera, Acrididae, Copiocerinae): novel occurrence in the Paranaense biogeographic province Rev. Soc. Entomol. Argent.
Taffarel,Alberto; Castillo,Elio R. D.; Acuña,Fernando N.; Krauczuk,Ernesto; Marangoni,Federico; Martí,Dardo A..
The Neotropical genus Aleuas Stål 1878 is constituted by nine recognized species, distributed in South America. This genus is closely related to Adimantus Stål 1878, Zygoclistron Rehn 1905 and Episcopotettix Rehn 1903 (Copiocerinae). Only four species of Aleuas have been reported in Argentina, covering different phytogeographical provinces: A. gracilis Stål 1878, A. lineatus Stål 1878, A. paranensis Carbonell 2008 and A. vitticollis Stål 1878. In this contribution we provide novel records for A. uruguayensis and illustrate the geographic distribution of the species. This work extends the known distribution range of the species as well as it contributes to the general knowledge on the Orthoptera diversity in Argentina.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Aleuas; Grasslands District; Biodiversity; Orthoptera.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802014000200014
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