دورية أكاديمية
Burrowing constrains the phenotypic diversity of fossorial crayfish.
| العنوان: | Burrowing constrains the phenotypic diversity of fossorial crayfish. |
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| المؤلفون: | Delekta EM; Department of Biology, University of Louisville, Louisville, KY 40292, USA.; Auburn University Museum of Natural History, Auburn, AL 36849, USA., Kolmann MA; Department of Biology, University of Louisville, Louisville, KY 40292, USA. |
| المصدر: | Integrative and comparative biology [Integr Comp Biol] 2024 Jun 11. Date of Electronic Publication: 2024 Jun 11. |
| Publication Model: | Ahead of Print |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 101152341 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1557-7023 (Electronic) Linking ISSN: 15407063 NLM ISO Abbreviation: Integr Comp Biol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2006- : Oxford : Oxford University Press Original Publication: McLean, VA : Society for Integrative and Comparative Biology, c2002- |
| مستخلص: | Strong selective pressure on phenotype can arise when habitat transitions fundamentally alter the physical media in which animals live, such as the invasion of land by lobe-finned fishes and insects. When environmental gradients differ drastically among habitats and multiple lineages transition between these habitats, we expect phenotypic convergence to be prevalent. One transition where widespread convergence has been observed is the shift from aboveground to subterranean environments in fossorial animals. Subterranean environments are low-light, confined spaces and tend to be hypoxic or anoxic, not to mention that the act of burrowing itself demands morphological specializations for excavation. Research suggests burrowing promotes morphological convergence in crayfish, with non-burrowing forms having a dorsoventrally compressed carapace and long, slender claws (chelae) while primary burrowing forms have a dorsolaterally compressed carapace and shorter, more powerful claws. However, earlier ecomorphological comparisons relied on qualitative, rather than quantitative assessments of phenotypic differences. This study tested for convergence in North American crayfishes using a geometric morphometric approach. We photographed the carapace and claw for representative species across thirteen North American genera. We hypothesized that crayfishes which occur in similar habitats and exhibit similar burrowing behaviors will converge in their carapace and claw shapes. We found evidence for convergence in carapace and claw morphologies in burrowing crayfishes. However, claw phenotypes did not converge as strongly as carapace shape, an example of "imperfect" or "incomplete" convergence we attribute to the multiple competing demands on claw form and function. We argue that nuances in habitat characteristics, like soil type or compaction, make complete convergence unlikely for range- and dispersal-limited fossorial crayfishes. (© The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Integrative and Comparative Biology.) |
| تواريخ الأحداث: | Date Created: 20240611 Latest Revision: 20240611 |
| رمز التحديث: | 20240612 |
| DOI: | 10.1093/icb/icae067 |
| PMID: | 38862199 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1557-7023 |
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| DOI: | 10.1093/icb/icae067 |