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EVOLUTION OF ADAPTATION THROUGH ALLOMETRIC SHIFTS IN A MARINE SNAIL

Variation in ontogenetic development among individuals may be a major contributor to morphological variation within species. Evolution of different growth trajectories might, for example, evolve as a response to varying ecological contexts of individuals living in different environments, or by life-... Full description

Journal Title: Evolution 2006-12, Vol.60 (12), p.2490-2497
Main Author: Hollander, Johan
Other Authors: Adams, Dean C. , Johannesson, Kerstin
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Oxford, UK: Blackwell Publishing Ltd
ID: ISSN: 0014-3820
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recordid: cdi_swepub_primary_oai_gup_ub_gu_se_59453
title: EVOLUTION OF ADAPTATION THROUGH ALLOMETRIC SHIFTS IN A MARINE SNAIL
format: Article
creator:
  • Hollander, Johan
  • Adams, Dean C.
  • Johannesson, Kerstin
subjects:
  • Adaptation (Physiology)
  • Adaptation, Physiological
  • Adults
  • Allometric growth
  • Allometry
  • Animal morphology
  • Animals
  • Biological Evolution
  • Biometry
  • biphasic shape allometry
  • CHARACTER DISPLACEMENT
  • Crabs
  • Ecological genetics
  • Ecology
  • Ecosystem
  • Ekologi
  • Environmental aspects
  • Evolution
  • Female
  • GEOGRAPHIC-VARIATION
  • geometric morphometrics
  • Geometric shapes
  • Growth
  • isometric growth
  • Life Cycle Stages - physiology
  • Littorina saxatilis
  • LITTORINA-SAXATILIS OLIVI
  • local adaptation
  • Male
  • Marine ecology
  • Mollusks
  • Ontogeny
  • PHENOTYPIC PLASTICITY
  • Physiological aspects
  • Reproduction - physiology
  • REPRODUCTIVE BARRIERS
  • rocky shore
  • RUDIS MATON
  • Selection, Genetic
  • Sex Characteristics
  • SEXUAL-DIMORPHISM
  • SHELL MORPHOLOGY
  • Snails
  • Snails - growth & development
  • SWEDISH WEST-COAST
  • Young animals
ispartof: Evolution, 2006-12, Vol.60 (12), p.2490-2497
description: Variation in ontogenetic development among individuals may be a major contributor to morphological variation within species. Evolution of different growth trajectories might, for example, evolve as a response to varying ecological contexts of individuals living in different environments, or by life-stage or gender differences. The intertidal periwinkle Littorina saxatilis is strongly polymorphic in shell shape. We compared ontogenetic trajectories between life stages, local populations, and sexes to understand how different morphological end points are reached during ontogeny and what might cause these differences. Applying landmark-based geometric morphometrics, we captured shell shape variation for four Swedish populations of this species. We also derived a method to visualize ontogenetic trajectories described by the relationship of size to the multivariate shape space. We found that growth trajectories differed between individuals living in different habitats, as well as between sexes and maturity stages. Males living on rocky cliffs grew isometrically throughout life, whereas females from the same habitat switched from isometric growth as juveniles to allometric growth as adults. In contrast, males and females living on boulders grew allometrically as juveniles but changed to isometric growth at sexual maturity. Thus, in this species, ontogenetic growth seems influenced by habitat-associated selection as well as by gender and age-specific selection. These differing selection regimes result in ontogenetic shifts in allometry in three of the four groups examined.
language: eng
source:
identifier: ISSN: 0014-3820
fulltext: no_fulltext
issn:
  • 0014-3820
  • 1558-5646
url: Link


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titleEVOLUTION OF ADAPTATION THROUGH ALLOMETRIC SHIFTS IN A MARINE SNAIL
creatorHollander, Johan ; Adams, Dean C. ; Johannesson, Kerstin
creatorcontribHollander, Johan ; Adams, Dean C. ; Johannesson, Kerstin ; Naturvetenskapliga fakulteten ; Department of Marine Ecology ; Institutionen för marin ekologi ; Faculty of Sciences ; Göteborgs universitet ; Gothenburg University
descriptionVariation in ontogenetic development among individuals may be a major contributor to morphological variation within species. Evolution of different growth trajectories might, for example, evolve as a response to varying ecological contexts of individuals living in different environments, or by life-stage or gender differences. The intertidal periwinkle Littorina saxatilis is strongly polymorphic in shell shape. We compared ontogenetic trajectories between life stages, local populations, and sexes to understand how different morphological end points are reached during ontogeny and what might cause these differences. Applying landmark-based geometric morphometrics, we captured shell shape variation for four Swedish populations of this species. We also derived a method to visualize ontogenetic trajectories described by the relationship of size to the multivariate shape space. We found that growth trajectories differed between individuals living in different habitats, as well as between sexes and maturity stages. Males living on rocky cliffs grew isometrically throughout life, whereas females from the same habitat switched from isometric growth as juveniles to allometric growth as adults. In contrast, males and females living on boulders grew allometrically as juveniles but changed to isometric growth at sexual maturity. Thus, in this species, ontogenetic growth seems influenced by habitat-associated selection as well as by gender and age-specific selection. These differing selection regimes result in ontogenetic shifts in allometry in three of the four groups examined.
editionReceived February 6, 2006. Accepted September 6, 2006.
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languageeng
publisherOxford, UK: Blackwell Publishing Ltd
subjectAdaptation (Physiology) ; Adaptation, Physiological ; Adults ; Allometric growth ; Allometry ; Animal morphology ; Animals ; Biological Evolution ; Biometry ; biphasic shape allometry ; CHARACTER DISPLACEMENT ; Crabs ; Ecological genetics ; Ecology ; Ecosystem ; Ekologi ; Environmental aspects ; Evolution ; Female ; GEOGRAPHIC-VARIATION ; geometric morphometrics ; Geometric shapes ; Growth ; isometric growth ; Life Cycle Stages - physiology ; Littorina saxatilis ; LITTORINA-SAXATILIS OLIVI ; local adaptation ; Male ; Marine ecology ; Mollusks ; Ontogeny ; PHENOTYPIC PLASTICITY ; Physiological aspects ; Reproduction - physiology ; REPRODUCTIVE BARRIERS ; rocky shore ; RUDIS MATON ; Selection, Genetic ; Sex Characteristics ; SEXUAL-DIMORPHISM ; SHELL MORPHOLOGY ; Snails ; Snails - growth & development ; SWEDISH WEST-COAST ; Young animals
ispartofEvolution, 2006-12, Vol.60 (12), p.2490-2497
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1Adams, Dean C.
2Johannesson, Kerstin
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descriptionVariation in ontogenetic development among individuals may be a major contributor to morphological variation within species. Evolution of different growth trajectories might, for example, evolve as a response to varying ecological contexts of individuals living in different environments, or by life-stage or gender differences. The intertidal periwinkle Littorina saxatilis is strongly polymorphic in shell shape. We compared ontogenetic trajectories between life stages, local populations, and sexes to understand how different morphological end points are reached during ontogeny and what might cause these differences. Applying landmark-based geometric morphometrics, we captured shell shape variation for four Swedish populations of this species. We also derived a method to visualize ontogenetic trajectories described by the relationship of size to the multivariate shape space. We found that growth trajectories differed between individuals living in different habitats, as well as between sexes and maturity stages. Males living on rocky cliffs grew isometrically throughout life, whereas females from the same habitat switched from isometric growth as juveniles to allometric growth as adults. In contrast, males and females living on boulders grew allometrically as juveniles but changed to isometric growth at sexual maturity. Thus, in this species, ontogenetic growth seems influenced by habitat-associated selection as well as by gender and age-specific selection. These differing selection regimes result in ontogenetic shifts in allometry in three of the four groups examined.
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0Adaptation (Physiology)
1Adaptation, Physiological
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3Allometric growth
4Allometry
5Animal morphology
6Animals
7Biological Evolution
8Biometry
9biphasic shape allometry
10CHARACTER DISPLACEMENT
11Crabs
12Ecological genetics
13Ecology
14Ecosystem
15Ekologi
16Environmental aspects
17Evolution
18Female
19GEOGRAPHIC-VARIATION
20geometric morphometrics
21Geometric shapes
22Growth
23isometric growth
24Life Cycle Stages - physiology
25Littorina saxatilis
26LITTORINA-SAXATILIS OLIVI
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28Male
29Marine ecology
30Mollusks
31Ontogeny
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35REPRODUCTIVE BARRIERS
36rocky shore
37RUDIS MATON
38Selection, Genetic
39Sex Characteristics
40SEXUAL-DIMORPHISM
41SHELL MORPHOLOGY
42Snails
43Snails - growth & development
44SWEDISH WEST-COAST
45Young animals
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titleEVOLUTION OF ADAPTATION THROUGH ALLOMETRIC SHIFTS IN A MARINE SNAIL
authorHollander, Johan ; Adams, Dean C. ; Johannesson, Kerstin
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7Biological Evolution
8Biometry
9biphasic shape allometry
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date2006-12
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abstractVariation in ontogenetic development among individuals may be a major contributor to morphological variation within species. Evolution of different growth trajectories might, for example, evolve as a response to varying ecological contexts of individuals living in different environments, or by life-stage or gender differences. The intertidal periwinkle Littorina saxatilis is strongly polymorphic in shell shape. We compared ontogenetic trajectories between life stages, local populations, and sexes to understand how different morphological end points are reached during ontogeny and what might cause these differences. Applying landmark-based geometric morphometrics, we captured shell shape variation for four Swedish populations of this species. We also derived a method to visualize ontogenetic trajectories described by the relationship of size to the multivariate shape space. We found that growth trajectories differed between individuals living in different habitats, as well as between sexes and maturity stages. Males living on rocky cliffs grew isometrically throughout life, whereas females from the same habitat switched from isometric growth as juveniles to allometric growth as adults. In contrast, males and females living on boulders grew allometrically as juveniles but changed to isometric growth at sexual maturity. Thus, in this species, ontogenetic growth seems influenced by habitat-associated selection as well as by gender and age-specific selection. These differing selection regimes result in ontogenetic shifts in allometry in three of the four groups examined.
copOxford, UK
pubBlackwell Publishing Ltd
pmid17263111
doi10.1111/j.0014-3820.2006.tb01884.x
tpages8
editionReceived February 6, 2006. Accepted September 6, 2006.