How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance
Very few details exists concerning the dispersal traits of Antarctic species and dispersal distances in particular are mostly unknown. Especially the general low number of mesoplanktonic larvae has caught attention and led to the formulation of Thorsons rule. From this concept, originally concerning...
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ftawi:oai:epic.awi.de:12555 2023-09-05T13:14:59+02:00 How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance Potthoff, Michael Johst, K. Gutt, Julian 2006 application/pdf https://epic.awi.de/id/eprint/12555/ https://epic.awi.de/id/eprint/12555/1/Pot2005b.pdf https://hdl.handle.net/10013/epic.22974 https://hdl.handle.net/10013/epic.22974.d001 unknown https://epic.awi.de/id/eprint/12555/1/Pot2005b.pdf https://hdl.handle.net/10013/epic.22974.d001 Potthoff, M. , Johst, K. and Gutt, J. (2006) How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance , Polar biology, 29 , pp. 543-551 . hdl:10013/epic.22974 EPIC3Polar biology, 29, pp. 543-551 Article isiRev 2006 ftawi 2023-08-22T19:49:58Z Very few details exists concerning the dispersal traits of Antarctic species and dispersal distances in particular are mostly unknown. Especially the general low number of mesoplanktonic larvae has caught attention and led to the formulation of Thorsons rule. From this concept, originally concerning only trophic aspects, sometimes a reduced dispersal distance is deduced. Using a generic simulation model we show that in a benthic habitat exposed to iceberg scouring even short dispersal phases of few hours are sufficient for a pioneer species to persist. This is very surprising for a pioneer species which should be able to disperse widely and colonise distant disturbed areas which are free of superior competitors. Our model revealed that the reason for this is the non-linear dependence of the dispersal distance on the disturbance regime and on species longevity. Thus, it is the combined effect of life history and disturbance traits which is important here: a sufficiently high disturbance frequency due to iceberg scouring and a long individual lifetime due to the low temperature decrease minimum dispersal distances required for persistence and thus coexistence and present an additional explanation for the relative rarity of planktonic larvae. Article in Journal/Newspaper Antarc* Antarctic Iceberg* Polar Biology Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic The Antarctic |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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description |
Very few details exists concerning the dispersal traits of Antarctic species and dispersal distances in particular are mostly unknown. Especially the general low number of mesoplanktonic larvae has caught attention and led to the formulation of Thorsons rule. From this concept, originally concerning only trophic aspects, sometimes a reduced dispersal distance is deduced. Using a generic simulation model we show that in a benthic habitat exposed to iceberg scouring even short dispersal phases of few hours are sufficient for a pioneer species to persist. This is very surprising for a pioneer species which should be able to disperse widely and colonise distant disturbed areas which are free of superior competitors. Our model revealed that the reason for this is the non-linear dependence of the dispersal distance on the disturbance regime and on species longevity. Thus, it is the combined effect of life history and disturbance traits which is important here: a sufficiently high disturbance frequency due to iceberg scouring and a long individual lifetime due to the low temperature decrease minimum dispersal distances required for persistence and thus coexistence and present an additional explanation for the relative rarity of planktonic larvae. |
format |
Article in Journal/Newspaper |
author |
Potthoff, Michael Johst, K. Gutt, Julian |
spellingShingle |
Potthoff, Michael Johst, K. Gutt, Julian How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance |
author_facet |
Potthoff, Michael Johst, K. Gutt, Julian |
author_sort |
Potthoff, Michael |
title |
How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance |
title_short |
How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance |
title_full |
How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance |
title_fullStr |
How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance |
title_full_unstemmed |
How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance |
title_sort |
how to survive as a pioneer species in the antarctic benthos: minimum dispersal distance as a function of lifetime and disturbance |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/12555/ https://epic.awi.de/id/eprint/12555/1/Pot2005b.pdf https://hdl.handle.net/10013/epic.22974 https://hdl.handle.net/10013/epic.22974.d001 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Iceberg* Polar Biology |
genre_facet |
Antarc* Antarctic Iceberg* Polar Biology |
op_source |
EPIC3Polar biology, 29, pp. 543-551 |
op_relation |
https://epic.awi.de/id/eprint/12555/1/Pot2005b.pdf https://hdl.handle.net/10013/epic.22974.d001 Potthoff, M. , Johst, K. and Gutt, J. (2006) How to survive as a pioneer species in the Antarctic benthos: Minimum dispersal distance as a function of lifetime and disturbance , Polar biology, 29 , pp. 543-551 . hdl:10013/epic.22974 |
_version_ |
1776196841557196800 |