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Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals
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| Zeitschriftentitel: | Diversity and Distributions |
|---|---|
| Personen und Körperschaften: | , , , , , |
| In: | Diversity and Distributions, 25, 2019, 11, S. 1684-1696 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Riginos, Cynthia Hock, Karlo Matias, Ambrocio M. Mumby, Peter J. van Oppen, Madeleine J. H. Lukoschek, Vimoksalehi Riginos, Cynthia Hock, Karlo Matias, Ambrocio M. Mumby, Peter J. van Oppen, Madeleine J. H. Lukoschek, Vimoksalehi |
|---|---|
| author |
Riginos, Cynthia Hock, Karlo Matias, Ambrocio M. Mumby, Peter J. van Oppen, Madeleine J. H. Lukoschek, Vimoksalehi |
| spellingShingle |
Riginos, Cynthia Hock, Karlo Matias, Ambrocio M. Mumby, Peter J. van Oppen, Madeleine J. H. Lukoschek, Vimoksalehi Diversity and Distributions Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals Ecology, Evolution, Behavior and Systematics |
| author_sort |
riginos, cynthia |
| spelling |
Riginos, Cynthia Hock, Karlo Matias, Ambrocio M. Mumby, Peter J. van Oppen, Madeleine J. H. Lukoschek, Vimoksalehi 1366-9516 1472-4642 Wiley Ecology, Evolution, Behavior and Systematics http://dx.doi.org/10.1111/ddi.12969 <jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>Widespread coral bleaching, crown‐of‐thorns seastar outbreaks, and tropical storms all threaten foundational coral species of the Great Barrier Reef, with impacts differing over time and space. Yet, dispersal via larval propagules could aid reef recovery by supplying new settlers and enabling the spread of adaptive variation among regions. Documenting and predicting spatial connections arising from planktonic larval dispersal in marine species, however, remains a formidable challenge.</jats:p></jats:sec><jats:sec><jats:title>Location</jats:title><jats:p>The Great Barrier Reef, Australia.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Contemporary biophysical larval dispersal models were used to predict long‐distance multigenerational connections for two common and foundational coral species (<jats:italic>Acropora tenuis</jats:italic> and <jats:italic>Acropora millepora</jats:italic>). Spatially extensive genetic surveys allowed us to infer signatures of asymmetric dispersal for these species and evaluate concordance against expectations from biophysical models using coalescent genetic simulations, directions of inferred gene flow, and spatial eigenvector modelling.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>At long distances, biophysical models predicted a preponderance of north–south connections and genetic results matched these expectations: coalescent genetic simulations rejected an alternative scenario of historical isolation; the strongest signals of inferred gene flow were from north–south; and asymmetric eigenvectors derived from north–south connections in the biophysical models were significantly better predictors of spatial genetic patterns than eigenvectors derived from symmetric null spatial models.</jats:p></jats:sec><jats:sec><jats:title>Main conclusions</jats:title><jats:p>Results are consistent with biophysical dispersal models yielding approximate summaries of past multigenerational gene flow conditioned upon directionality of connections. For <jats:italic>A. tenuis</jats:italic> and <jats:italic>A. millepora</jats:italic>, northern and central reefs have been important sources to downstream southern reefs over the recent evolutionary past and should continue to provide southward gene flow. Endemic genetic diversity of southern reefs suggests substantial local recruitment and lack of long‐distance gene flow from south to north.</jats:p></jats:sec> Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals Diversity and Distributions |
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Wiley, 2019 |
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Diversity and Distributions |
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| title |
Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_unstemmed |
Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_full |
Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_fullStr |
Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_full_unstemmed |
Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_short |
Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_sort |
asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in great barrier reef corals |
| topic |
Ecology, Evolution, Behavior and Systematics |
| url |
http://dx.doi.org/10.1111/ddi.12969 |
| publishDate |
2019 |
| physical |
1684-1696 |
| description |
<jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>Widespread coral bleaching, crown‐of‐thorns seastar outbreaks, and tropical storms all threaten foundational coral species of the Great Barrier Reef, with impacts differing over time and space. Yet, dispersal via larval propagules could aid reef recovery by supplying new settlers and enabling the spread of adaptive variation among regions. Documenting and predicting spatial connections arising from planktonic larval dispersal in marine species, however, remains a formidable challenge.</jats:p></jats:sec><jats:sec><jats:title>Location</jats:title><jats:p>The Great Barrier Reef, Australia.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Contemporary biophysical larval dispersal models were used to predict long‐distance multigenerational connections for two common and foundational coral species (<jats:italic>Acropora tenuis</jats:italic> and <jats:italic>Acropora millepora</jats:italic>). Spatially extensive genetic surveys allowed us to infer signatures of asymmetric dispersal for these species and evaluate concordance against expectations from biophysical models using coalescent genetic simulations, directions of inferred gene flow, and spatial eigenvector modelling.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>At long distances, biophysical models predicted a preponderance of north–south connections and genetic results matched these expectations: coalescent genetic simulations rejected an alternative scenario of historical isolation; the strongest signals of inferred gene flow were from north–south; and asymmetric eigenvectors derived from north–south connections in the biophysical models were significantly better predictors of spatial genetic patterns than eigenvectors derived from symmetric null spatial models.</jats:p></jats:sec><jats:sec><jats:title>Main conclusions</jats:title><jats:p>Results are consistent with biophysical dispersal models yielding approximate summaries of past multigenerational gene flow conditioned upon directionality of connections. For <jats:italic>A. tenuis</jats:italic> and <jats:italic>A. millepora</jats:italic>, northern and central reefs have been important sources to downstream southern reefs over the recent evolutionary past and should continue to provide southward gene flow. Endemic genetic diversity of southern reefs suggests substantial local recruitment and lack of long‐distance gene flow from south to north.</jats:p></jats:sec> |
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| author | Riginos, Cynthia, Hock, Karlo, Matias, Ambrocio M., Mumby, Peter J., van Oppen, Madeleine J. H., Lukoschek, Vimoksalehi |
| author_facet | Riginos, Cynthia, Hock, Karlo, Matias, Ambrocio M., Mumby, Peter J., van Oppen, Madeleine J. H., Lukoschek, Vimoksalehi, Riginos, Cynthia, Hock, Karlo, Matias, Ambrocio M., Mumby, Peter J., van Oppen, Madeleine J. H., Lukoschek, Vimoksalehi |
| author_sort | riginos, cynthia |
| container_issue | 11 |
| container_start_page | 1684 |
| container_title | Diversity and Distributions |
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| description | <jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>Widespread coral bleaching, crown‐of‐thorns seastar outbreaks, and tropical storms all threaten foundational coral species of the Great Barrier Reef, with impacts differing over time and space. Yet, dispersal via larval propagules could aid reef recovery by supplying new settlers and enabling the spread of adaptive variation among regions. Documenting and predicting spatial connections arising from planktonic larval dispersal in marine species, however, remains a formidable challenge.</jats:p></jats:sec><jats:sec><jats:title>Location</jats:title><jats:p>The Great Barrier Reef, Australia.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Contemporary biophysical larval dispersal models were used to predict long‐distance multigenerational connections for two common and foundational coral species (<jats:italic>Acropora tenuis</jats:italic> and <jats:italic>Acropora millepora</jats:italic>). Spatially extensive genetic surveys allowed us to infer signatures of asymmetric dispersal for these species and evaluate concordance against expectations from biophysical models using coalescent genetic simulations, directions of inferred gene flow, and spatial eigenvector modelling.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>At long distances, biophysical models predicted a preponderance of north–south connections and genetic results matched these expectations: coalescent genetic simulations rejected an alternative scenario of historical isolation; the strongest signals of inferred gene flow were from north–south; and asymmetric eigenvectors derived from north–south connections in the biophysical models were significantly better predictors of spatial genetic patterns than eigenvectors derived from symmetric null spatial models.</jats:p></jats:sec><jats:sec><jats:title>Main conclusions</jats:title><jats:p>Results are consistent with biophysical dispersal models yielding approximate summaries of past multigenerational gene flow conditioned upon directionality of connections. For <jats:italic>A. tenuis</jats:italic> and <jats:italic>A. millepora</jats:italic>, northern and central reefs have been important sources to downstream southern reefs over the recent evolutionary past and should continue to provide southward gene flow. Endemic genetic diversity of southern reefs suggests substantial local recruitment and lack of long‐distance gene flow from south to north.</jats:p></jats:sec> |
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| imprint | Wiley, 2019 |
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| spelling | Riginos, Cynthia Hock, Karlo Matias, Ambrocio M. Mumby, Peter J. van Oppen, Madeleine J. H. Lukoschek, Vimoksalehi 1366-9516 1472-4642 Wiley Ecology, Evolution, Behavior and Systematics http://dx.doi.org/10.1111/ddi.12969 <jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>Widespread coral bleaching, crown‐of‐thorns seastar outbreaks, and tropical storms all threaten foundational coral species of the Great Barrier Reef, with impacts differing over time and space. Yet, dispersal via larval propagules could aid reef recovery by supplying new settlers and enabling the spread of adaptive variation among regions. Documenting and predicting spatial connections arising from planktonic larval dispersal in marine species, however, remains a formidable challenge.</jats:p></jats:sec><jats:sec><jats:title>Location</jats:title><jats:p>The Great Barrier Reef, Australia.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Contemporary biophysical larval dispersal models were used to predict long‐distance multigenerational connections for two common and foundational coral species (<jats:italic>Acropora tenuis</jats:italic> and <jats:italic>Acropora millepora</jats:italic>). Spatially extensive genetic surveys allowed us to infer signatures of asymmetric dispersal for these species and evaluate concordance against expectations from biophysical models using coalescent genetic simulations, directions of inferred gene flow, and spatial eigenvector modelling.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>At long distances, biophysical models predicted a preponderance of north–south connections and genetic results matched these expectations: coalescent genetic simulations rejected an alternative scenario of historical isolation; the strongest signals of inferred gene flow were from north–south; and asymmetric eigenvectors derived from north–south connections in the biophysical models were significantly better predictors of spatial genetic patterns than eigenvectors derived from symmetric null spatial models.</jats:p></jats:sec><jats:sec><jats:title>Main conclusions</jats:title><jats:p>Results are consistent with biophysical dispersal models yielding approximate summaries of past multigenerational gene flow conditioned upon directionality of connections. For <jats:italic>A. tenuis</jats:italic> and <jats:italic>A. millepora</jats:italic>, northern and central reefs have been important sources to downstream southern reefs over the recent evolutionary past and should continue to provide southward gene flow. Endemic genetic diversity of southern reefs suggests substantial local recruitment and lack of long‐distance gene flow from south to north.</jats:p></jats:sec> Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals Diversity and Distributions |
| spellingShingle | Riginos, Cynthia, Hock, Karlo, Matias, Ambrocio M., Mumby, Peter J., van Oppen, Madeleine J. H., Lukoschek, Vimoksalehi, Diversity and Distributions, Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals, Ecology, Evolution, Behavior and Systematics |
| title | Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_full | Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_fullStr | Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_full_unstemmed | Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_short | Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| title_sort | asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in great barrier reef corals |
| title_unstemmed | Asymmetric dispersal is a critical element of concordance between biophysical dispersal models and spatial genetic structure in Great Barrier Reef corals |
| topic | Ecology, Evolution, Behavior and Systematics |
| url | http://dx.doi.org/10.1111/ddi.12969 |