dc.contributor.author |
Teske, Peter
|
en_ZA |
dc.contributor.author |
Rius, Marc
|
en_ZA |
dc.contributor.author |
McQuaid, Christopher
|
en_ZA |
dc.contributor.author |
Styan, Craig
|
en_ZA |
dc.contributor.author |
Piggott, Maxine
|
en_ZA |
dc.contributor.author |
Benhissoune, Said
|
en_ZA |
dc.contributor.author |
Fuentes-Grunewald, Claudio
|
en_ZA |
dc.contributor.author |
Walls, Kathy
|
en_ZA |
dc.contributor.author |
Page, Mike
|
en_ZA |
dc.contributor.author |
Attard, Catherine
|
en_ZA |
dc.contributor.author |
Cooke, Georgina
|
en_ZA |
dc.contributor.author |
McClusky, Claire
|
en_ZA |
dc.contributor.author |
Banks, Sam
|
en_ZA |
dc.contributor.author |
Barker, Nigel
|
en_ZA |
dc.contributor.author |
Beheregaray, Luci
|
en_ZA |
dc.date.accessioned |
2015-11-18T04:04:10Z |
|
dc.date.available |
2015-11-18T04:04:10Z |
|
dc.date.issued |
2011 |
en_ZA |
dc.identifier.citation |
Teske, P. R., Rius, M., McQuaid, C. D., Styan, C. A., Piggott, M. P., Benhissoune, S., ... & Beheregaray, L. B. (2011). Nested” cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions. BMC evolutionary biology, 11(1), 176. |
en_ZA |
dc.identifier.uri |
http://hdl.handle.net/11427/15109
|
|
dc.identifier.uri |
http://dx.doi.org/10.1186/1471-2148-11-176
|
|
dc.description.abstract |
BACKGROUND: Ecosystem engineers facilitate habitat formation and enhance biodiversity, but when they become invasive, they present a critical threat to native communities because they can drastically alter the receiving habitat. Management of such species thus needs to be a priority, but the poorly resolved taxonomy of many ecosystem engineers represents a major obstacle to correctly identifying them as being either native or introduced. We address this dilemma by studying the sea squirt Pyura stolonifera, an important ecosystem engineer that dominates coastal communities particularly in the southern hemisphere. Using DNA sequence data from four independently evolving loci, we aimed to determine levels of cryptic diversity, the invasive or native status of each regional population, and the most appropriate sampling design for identifying the geographic ranges of each evolutionary unit. RESULTS: Extensive sampling in Africa, Australasia and South America revealed the existence of "nested" levels of cryptic diversity, in which at least five distinct species can be further subdivided into smaller-scale genetic lineages. The ranges of several evolutionary units are limited by well-documented biogeographic disjunctions. Evidence for both cryptic native diversity and the existence of invasive populations allows us to considerably refine our view of the native versus introduced status of the evolutionary units within Pyura stolonifera in the different coastal communities they dominate. CONCLUSIONS: This study illustrates the degree of taxonomic complexity that can exist within widespread species for which there is little taxonomic expertise, and it highlights the challenges involved in distinguishing between indigenous and introduced populations. The fact that multiple genetic lineages can be native to a single geographic region indicates that it is imperative to obtain samples from as many different habitat types and biotic zones as possible when attempting to identify the source region of a putative invader. "Nested" cryptic diversity, and the difficulties in correctly identifying invasive species that arise from it, represent a major challenge for managing biodiversity. |
en_ZA |
dc.language.iso |
eng |
en_ZA |
dc.publisher |
BioMed Central Ltd |
en_ZA |
dc.rights |
This is an Open Access article distributed under the terms of the Creative Commons Attribution License |
en_ZA |
dc.rights.uri |
http://creativecommons.org/licenses/by/2.0 |
en_ZA |
dc.source |
BMC Evolutionary Biology |
en_ZA |
dc.source.uri |
http://www.biomedcentral.com/bmcevolbiol/
|
en_ZA |
dc.subject.other |
Cryptic diversity |
en_ZA |
dc.subject.other |
Taxonomic complexity |
en_ZA |
dc.subject.other |
Taxonomic expertise |
en_ZA |
dc.title |
"Nested" cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions |
en_ZA |
dc.type |
Journal Article |
en_ZA |
dc.rights.holder |
2011 Teske et al; licensee BioMed Central Ltd. |
en_ZA |
uct.type.publication |
Research |
en_ZA |
uct.type.resource |
Article
|
en_ZA |
dc.publisher.institution |
University of Cape Town |
|
dc.publisher.faculty |
Faculty of Science |
en_ZA |
dc.publisher.department |
Department of Biological Sciences |
en_ZA |
uct.type.filetype |
Text |
|
uct.type.filetype |
Image |
|
dc.identifier.apacitation |
Teske, P., Rius, M., McQuaid, C., Styan, C., Piggott, M., Benhissoune, S., ... Beheregaray, L. (2011). "Nested" cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions. <i>BMC Evolutionary Biology</i>, http://hdl.handle.net/11427/15109 |
en_ZA |
dc.identifier.chicagocitation |
Teske, Peter, Marc Rius, Christopher McQuaid, Craig Styan, Maxine Piggott, Said Benhissoune, Claudio Fuentes-Grunewald, et al ""Nested" cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions." <i>BMC Evolutionary Biology</i> (2011) http://hdl.handle.net/11427/15109 |
en_ZA |
dc.identifier.vancouvercitation |
Teske P, Rius M, McQuaid C, Styan C, Piggott M, Benhissoune S, et al. "Nested" cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions. BMC Evolutionary Biology. 2011; http://hdl.handle.net/11427/15109. |
en_ZA |
dc.identifier.ris |
TY - Journal Article
AU - Teske, Peter
AU - Rius, Marc
AU - McQuaid, Christopher
AU - Styan, Craig
AU - Piggott, Maxine
AU - Benhissoune, Said
AU - Fuentes-Grunewald, Claudio
AU - Walls, Kathy
AU - Page, Mike
AU - Attard, Catherine
AU - Cooke, Georgina
AU - McClusky, Claire
AU - Banks, Sam
AU - Barker, Nigel
AU - Beheregaray, Luci
AB - BACKGROUND: Ecosystem engineers facilitate habitat formation and enhance biodiversity, but when they become invasive, they present a critical threat to native communities because they can drastically alter the receiving habitat. Management of such species thus needs to be a priority, but the poorly resolved taxonomy of many ecosystem engineers represents a major obstacle to correctly identifying them as being either native or introduced. We address this dilemma by studying the sea squirt Pyura stolonifera, an important ecosystem engineer that dominates coastal communities particularly in the southern hemisphere. Using DNA sequence data from four independently evolving loci, we aimed to determine levels of cryptic diversity, the invasive or native status of each regional population, and the most appropriate sampling design for identifying the geographic ranges of each evolutionary unit. RESULTS: Extensive sampling in Africa, Australasia and South America revealed the existence of "nested" levels of cryptic diversity, in which at least five distinct species can be further subdivided into smaller-scale genetic lineages. The ranges of several evolutionary units are limited by well-documented biogeographic disjunctions. Evidence for both cryptic native diversity and the existence of invasive populations allows us to considerably refine our view of the native versus introduced status of the evolutionary units within Pyura stolonifera in the different coastal communities they dominate. CONCLUSIONS: This study illustrates the degree of taxonomic complexity that can exist within widespread species for which there is little taxonomic expertise, and it highlights the challenges involved in distinguishing between indigenous and introduced populations. The fact that multiple genetic lineages can be native to a single geographic region indicates that it is imperative to obtain samples from as many different habitat types and biotic zones as possible when attempting to identify the source region of a putative invader. "Nested" cryptic diversity, and the difficulties in correctly identifying invasive species that arise from it, represent a major challenge for managing biodiversity.
DA - 2011
DB - OpenUCT
DO - 10.1186/1471-2148-11-176
DP - University of Cape Town
J1 - BMC Evolutionary Biology
LK - https://open.uct.ac.za
PB - University of Cape Town
PY - 2011
T1 - "Nested" cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions
TI - "Nested" cryptic diversity in a widespread marine ecosystem engineer: a challenge for detecting biological invasions
UR - http://hdl.handle.net/11427/15109
ER -
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en_ZA |