An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts
Long-distance dispersal (LDD) is thought to be a key driver of biogeographic processes, yet few direct natural observations have been made of this process. Several studies have characterised diverse benthic epibiotic communities associated with buoyant macroalgae and have proposed that kelp rafting...
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Language: | English |
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ftcdlib:qt195552tt 2023-05-15T14:03:27+02:00 An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts Waters, Jonathan M. King, Tania M. Fraser, Ceridwen I. Craw, Dave 2018-01-01 application/pdf http://www.escholarship.org/uc/item/195552tt english eng eScholarship, University of California qt195552tt http://www.escholarship.org/uc/item/195552tt public Waters, Jonathan M.; King, Tania M.; Fraser, Ceridwen I.; & Craw, Dave. (2018). An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts. Frontiers of Biogeography, 10(3-4). doi:10.21425/F5FBG40888. Retrieved from: http://www.escholarship.org/uc/item/195552tt Long distance dispersal biogeography connectivity genetics marine phylogeography rafting storms article 2018 ftcdlib https://doi.org/10.21425/F5FBG40888 2019-02-22T23:52:10Z Long-distance dispersal (LDD) is thought to be a key driver of biogeographic processes, yet few direct natural observations have been made of this process. Several studies have characterised diverse benthic epibiotic communities associated with buoyant macroalgae and have proposed that kelp rafting may be an important LDD mechanism for such coastal species. We test for LDD by combining biological, genetic, and geological data from rafted bull-kelp (Durvillaea antarctica) specimens collected in southern New Zealand following a March 2018 storm. Genetic and ecological data strongly indicate that three of 29 detached kelp specimens sequenced (and their associated live epifaunal taxa) had rafted from the sub-Antarctic to mainland New Zealand, traversing both oceanographic and phylogeographic barriers, over the course of an approximately 4-week journey. Numerous additional epifaunal taxa were detected from rafts that had geologically-distant mainland origins. The successful trans-oceanic rafting documented for sub-Antarctic brooding sea-star, chiton and sea-slug taxa presents a mechanism for their broad but phylogeographically disjunct Southern Hemisphere distributions. Moreover, the detection of several such LDD events over the last decade suggests that such journeys are very common over evolutionary timeframes. Although geological and genetic data were informative over different scales, we detected no conflict between the inferences from these distinct data sets, a finding that reinforces the value of integrative approaches to marine biogeography. Article in Journal/Newspaper Antarc* Antarctic Antarctica University of California: eScholarship Antarctic New Zealand Frontiers of Biogeography 10 3-4 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
English |
topic |
Long distance dispersal biogeography connectivity genetics marine phylogeography rafting storms |
spellingShingle |
Long distance dispersal biogeography connectivity genetics marine phylogeography rafting storms Waters, Jonathan M. King, Tania M. Fraser, Ceridwen I. Craw, Dave An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
topic_facet |
Long distance dispersal biogeography connectivity genetics marine phylogeography rafting storms |
description |
Long-distance dispersal (LDD) is thought to be a key driver of biogeographic processes, yet few direct natural observations have been made of this process. Several studies have characterised diverse benthic epibiotic communities associated with buoyant macroalgae and have proposed that kelp rafting may be an important LDD mechanism for such coastal species. We test for LDD by combining biological, genetic, and geological data from rafted bull-kelp (Durvillaea antarctica) specimens collected in southern New Zealand following a March 2018 storm. Genetic and ecological data strongly indicate that three of 29 detached kelp specimens sequenced (and their associated live epifaunal taxa) had rafted from the sub-Antarctic to mainland New Zealand, traversing both oceanographic and phylogeographic barriers, over the course of an approximately 4-week journey. Numerous additional epifaunal taxa were detected from rafts that had geologically-distant mainland origins. The successful trans-oceanic rafting documented for sub-Antarctic brooding sea-star, chiton and sea-slug taxa presents a mechanism for their broad but phylogeographically disjunct Southern Hemisphere distributions. Moreover, the detection of several such LDD events over the last decade suggests that such journeys are very common over evolutionary timeframes. Although geological and genetic data were informative over different scales, we detected no conflict between the inferences from these distinct data sets, a finding that reinforces the value of integrative approaches to marine biogeography. |
format |
Article in Journal/Newspaper |
author |
Waters, Jonathan M. King, Tania M. Fraser, Ceridwen I. Craw, Dave |
author_facet |
Waters, Jonathan M. King, Tania M. Fraser, Ceridwen I. Craw, Dave |
author_sort |
Waters, Jonathan M. |
title |
An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
title_short |
An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
title_full |
An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
title_fullStr |
An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
title_full_unstemmed |
An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
title_sort |
integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts |
publisher |
eScholarship, University of California |
publishDate |
2018 |
url |
http://www.escholarship.org/uc/item/195552tt |
geographic |
Antarctic New Zealand |
geographic_facet |
Antarctic New Zealand |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Waters, Jonathan M.; King, Tania M.; Fraser, Ceridwen I.; & Craw, Dave. (2018). An integrated ecological, genetic and geological assessment of long-distance dispersal by invertebrates on kelp rafts. Frontiers of Biogeography, 10(3-4). doi:10.21425/F5FBG40888. Retrieved from: http://www.escholarship.org/uc/item/195552tt |
op_relation |
qt195552tt http://www.escholarship.org/uc/item/195552tt |
op_rights |
public |
op_doi |
https://doi.org/10.21425/F5FBG40888 |
container_title |
Frontiers of Biogeography |
container_volume |
10 |
container_issue |
3-4 |
_version_ |
1766274118487900160 |