Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules

Body size is the most important feature of all organisms and in this study is represented by the variables “body length” and “body width”. Bergmann’s Rule is a hypothesis concerning body size increase with latitude for homeotherms, whereas geographic version of Rensch’s Rule predicts greater body si...

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Κύριος συγγραφέας:	Καραγκούνη, Μαρία - Θεοδώρος
Άλλοι συγγραφείς:	Σφενδουράκης, Σπύρος
Γλώσσα:	Greek
Δημοσίευση:	2015
Θέματα:	Terrestrial isopods Body size Bergmann’s rule Rensch’s rule Island rule Species richness
Διαθέσιμο Online:	https://vsmart.lib.aegean.gr/webopac/FullBB.csp?WebAction=ShowFullBB&EncodedRequest=C694oEAD0S9723130D3C11E1D1C612&Profile=Default&OpacLanguage=gre&NumberToRetrieve=50&StartValue=3&WebPageNr=1&SearchTerm1=2010%20.1.10155&SearchT1=&Index1=Keywordsbib&SearchMethod=Find_1&ItemNr=3 http://hdl.handle.net/11610/11683
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author	Καραγκούνη, Μαρία - Θεοδώρος
author2	Σφενδουράκης, Σπύρος
author_facet	Σφενδουράκης, Σπύρος Καραγκούνη, Μαρία - Θεοδώρος
author_sort	Καραγκούνη, Μαρία - Θεοδώρος
collection	DSpace
description	Body size is the most important feature of all organisms and in this study is represented by the variables “body length” and “body width”. Bergmann’s Rule is a hypothesis concerning body size increase with latitude for homeotherms, whereas geographic version of Rensch’s Rule predicts greater body size variation with latitude for males. The trend predicted by the first rule is confirmed here for a group of ectotherms, terrestrial isopods, while that predicted by the second was not found to apply in these organisms. Several hypotheses have been proposed to explain body size variation in terms of environmental factors and interspecific interactions underlying latitudinal gradients. Thus, we used our results to test certain hypotheses proposed to account for Bergmann’s Rule. The Island Rule examines body size as it is affected by spatial parameters and reflects a complex pattern from gigantism in taxa with small sized mainland relatives, to dwarfism in taxa with large mainland relatives. Our results are not conclusive regarding this rule, but are indicative of trends that need to be examined in the future.
id	oai:hellanicus.lib.aegean.gr:11610-11683
institution	Hellanicus
language	Greek
publishDate	2015
record_format	dspace
spelling	oai:hellanicus.lib.aegean.gr:11610-116832021-01-25T07:28:55Z Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules Καραγκούνη, Μαρία - Θεοδώρος Σφενδουράκης, Σπύρος Terrestrial isopods Body size Bergmann’s rule Rensch’s rule Island rule Species richness Body size is the most important feature of all organisms and in this study is represented by the variables “body length” and “body width”. Bergmann’s Rule is a hypothesis concerning body size increase with latitude for homeotherms, whereas geographic version of Rensch’s Rule predicts greater body size variation with latitude for males. The trend predicted by the first rule is confirmed here for a group of ectotherms, terrestrial isopods, while that predicted by the second was not found to apply in these organisms. Several hypotheses have been proposed to explain body size variation in terms of environmental factors and interspecific interactions underlying latitudinal gradients. Thus, we used our results to test certain hypotheses proposed to account for Bergmann’s Rule. The Island Rule examines body size as it is affected by spatial parameters and reflects a complex pattern from gigantism in taxa with small sized mainland relatives, to dwarfism in taxa with large mainland relatives. Our results are not conclusive regarding this rule, but are indicative of trends that need to be examined in the future. 2015-11-18T09:46:04Z 2015-11-18T09:46:04Z 2010 https://vsmart.lib.aegean.gr/webopac/FullBB.csp?WebAction=ShowFullBB&EncodedRequest=C694oEAD0S9723130D3C11E1D1C612&Profile=Default&OpacLanguage=gre&NumberToRetrieve=50&StartValue=3&WebPageNr=1&SearchTerm1=2010%20.1.10155&SearchT1=&Index1=Keywordsbib&SearchMethod=Find_1&ItemNr=3 http://hdl.handle.net/11610/11683 el application/pdf Μυτιλήνη
spellingShingle	Terrestrial isopods Body size Bergmann’s rule Rensch’s rule Island rule Species richness Καραγκούνη, Μαρία - Θεοδώρος Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules
title	Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules
title_full	Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules
title_fullStr	Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules
title_full_unstemmed	Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules
title_short	Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules
title_sort	variation in body size of terrestrial isopods crustacea oniscidea and application of ecogeographical rules
topic	Terrestrial isopods Body size Bergmann’s rule Rensch’s rule Island rule Species richness
url	https://vsmart.lib.aegean.gr/webopac/FullBB.csp?WebAction=ShowFullBB&EncodedRequest=C694oEAD0S9723130D3C11E1D1C612&Profile=Default&OpacLanguage=gre&NumberToRetrieve=50&StartValue=3&WebPageNr=1&SearchTerm1=2010%20.1.10155&SearchT1=&Index1=Keywordsbib&SearchMethod=Find_1&ItemNr=3 http://hdl.handle.net/11610/11683
work_keys_str_mv	AT karankounēmariatheodōros variationinbodysizeofterrestrialisopodscrustaceaoniscideaandapplicationofecogeographicalrules

Variation in body size of terrestrial isopods (crustacea: oniscidea) and application of ecogeographical rules

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