Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)

Observations made on several hundred adult male spiders of two species of Araneus indicate a highly significant correlation (p<0.001) between the length of a segment (tibia of the second leg) and the number of macrosetae (“spines”) present on the segment. This result is further supported by obser...

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Main Author: L. David Carmichael
Format: Article
Language:English
Published: Wiley 1973-01-01
Series:Psyche: A Journal of Entomology
Online Access:http://dx.doi.org/10.1155/1973/47592
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author L. David Carmichael
author_facet L. David Carmichael
author_sort L. David Carmichael
collection DOAJ
description Observations made on several hundred adult male spiders of two species of Araneus indicate a highly significant correlation (p<0.001) between the length of a segment (tibia of the second leg) and the number of macrosetae (“spines”) present on the segment. This result is further supported by observations on the first tibiae of about twenty male A. trifolfum, one of the two species, and by a few observations on immatures of the two species. A short summary of the methods used in taking the measurements and making the calculations is followed by discussion of the implications of this correlation with reference to species determination and geographic variation
format Article
id doaj-art-af727937a2c149dbbf189b906fee303e
institution Kabale University
issn 0033-2615
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publishDate 1973-01-01
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spelling doaj-art-af727937a2c149dbbf189b906fee303e2025-08-20T03:39:05ZengWileyPsyche: A Journal of Entomology0033-26151687-74381973-01-01801-2626910.1155/1973/47592Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)L. David Carmichael0Museum of Comparative Zoology, USAObservations made on several hundred adult male spiders of two species of Araneus indicate a highly significant correlation (p<0.001) between the length of a segment (tibia of the second leg) and the number of macrosetae (“spines”) present on the segment. This result is further supported by observations on the first tibiae of about twenty male A. trifolfum, one of the two species, and by a few observations on immatures of the two species. A short summary of the methods used in taking the measurements and making the calculations is followed by discussion of the implications of this correlation with reference to species determination and geographic variationhttp://dx.doi.org/10.1155/1973/47592
spellingShingle L. David Carmichael
Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)
Psyche: A Journal of Entomology
title Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)
title_full Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)
title_fullStr Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)
title_full_unstemmed Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)
title_short Correlation Between Segment Length and Spine Counts in Two Spider Species of Araneus (Araneae: Araneidae)
title_sort correlation between segment length and spine counts in two spider species of araneus araneae araneidae
url http://dx.doi.org/10.1155/1973/47592
work_keys_str_mv AT ldavidcarmichael correlationbetweensegmentlengthandspinecountsintwospiderspeciesofaraneusaraneaearaneidae