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Article: Does predation drive morphological differentiation among Adriatic populations of the three-spined stickleback?

TitleDoes predation drive morphological differentiation among Adriatic populations of the three-spined stickleback?
Authors
KeywordsBalkan Peninsula
Population differentiation
Karst
Gasterosteus aculeatus
Geographic variation
Morphology
Issue Date2015
Citation
Biological Journal of the Linnean Society, 2015, v. 115, n. 1, p. 219-240 How to Cite?
Abstract© 2015 The Linnean Society of London. Morphometric differentiation among freshwater fish populations is a commonplace occurrence, although the underlying causes for this divergence often remain elusive. We analysed the degree and patterns of morphological differentiation among nine freshwater three-spined stickleback (Gasterosteus aculeatus) populations inhabiting isolated karst rivers of the Adriatic Sea basin, to characterise the phenotypic diversity and differentiation in these populations. The analyses revealed marked and significant morphometric differentiation - especially in traits related to predator defence amongst most populations - even among those located within close geographic proximity in the same catchment system. Accordingly, the degree of morphometric and neutral genetic differentiation, as assessed from variability in 15 microsatellite loci from a parallel study, were uncorrelated across the populations. However, PST/FST comparisons revealed that the degree of phenotypic differentiation (PST) among populations exceeded that to be expected from genetic drift alone, suggesting a possible adaptive basis for the observed differentiation. In fact, avian predation pressure and several physiochemical environmental variables were identified as the main putative drivers of the observed differentiation, particularly in the dorsal spines, ascending process and lateral plates. Hence, the high degree of morphometric differentiation among Adriatic three-spined stickleback populations appears to reflect adaptation to local ecological conditions.
Persistent Identifierhttp://hdl.handle.net/10722/292873
ISSN
2023 Impact Factor: 2.0
2023 SCImago Journal Rankings: 0.764
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZanella, Linda N.-
dc.contributor.authorDefaveri, Jacquelin-
dc.contributor.authorZanella, Davor-
dc.contributor.authorMerilä, Juha-
dc.contributor.authorŠanda, Radek-
dc.contributor.authorMrakovčić, Milorad-
dc.date.accessioned2020-11-17T14:57:24Z-
dc.date.available2020-11-17T14:57:24Z-
dc.date.issued2015-
dc.identifier.citationBiological Journal of the Linnean Society, 2015, v. 115, n. 1, p. 219-240-
dc.identifier.issn0024-4066-
dc.identifier.urihttp://hdl.handle.net/10722/292873-
dc.description.abstract© 2015 The Linnean Society of London. Morphometric differentiation among freshwater fish populations is a commonplace occurrence, although the underlying causes for this divergence often remain elusive. We analysed the degree and patterns of morphological differentiation among nine freshwater three-spined stickleback (Gasterosteus aculeatus) populations inhabiting isolated karst rivers of the Adriatic Sea basin, to characterise the phenotypic diversity and differentiation in these populations. The analyses revealed marked and significant morphometric differentiation - especially in traits related to predator defence amongst most populations - even among those located within close geographic proximity in the same catchment system. Accordingly, the degree of morphometric and neutral genetic differentiation, as assessed from variability in 15 microsatellite loci from a parallel study, were uncorrelated across the populations. However, P<inf>ST</inf>/F<inf>ST</inf> comparisons revealed that the degree of phenotypic differentiation (P<inf>ST</inf>) among populations exceeded that to be expected from genetic drift alone, suggesting a possible adaptive basis for the observed differentiation. In fact, avian predation pressure and several physiochemical environmental variables were identified as the main putative drivers of the observed differentiation, particularly in the dorsal spines, ascending process and lateral plates. Hence, the high degree of morphometric differentiation among Adriatic three-spined stickleback populations appears to reflect adaptation to local ecological conditions.-
dc.languageeng-
dc.relation.ispartofBiological Journal of the Linnean Society-
dc.subjectBalkan Peninsula-
dc.subjectPopulation differentiation-
dc.subjectKarst-
dc.subjectGasterosteus aculeatus-
dc.subjectGeographic variation-
dc.subjectMorphology-
dc.titleDoes predation drive morphological differentiation among Adriatic populations of the three-spined stickleback?-
dc.typeArticle-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1111/bij.12491-
dc.identifier.scopuseid_2-s2.0-84926351656-
dc.identifier.volume115-
dc.identifier.issue1-
dc.identifier.spage219-
dc.identifier.epage240-
dc.identifier.eissn1095-8312-
dc.identifier.isiWOS:000352630300019-
dc.identifier.issnl0024-4066-

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