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Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion
Invasions often accelerate through time, as dispersal-enhancing traits accumulate at the expanding range edge. How does the dispersal behaviour of individual organisms shift to increase rates of population spread? We collate data from 44 radio-tracking studies (in total, of 650 animals) of cane toad...
Autores principales: | , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8651681/ https://www.ncbi.nlm.nih.gov/pubmed/34876612 http://dx.doi.org/10.1038/s41598-021-02828-5 |
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author | Shine, Richard Alford, Ross A. Blennerhasset, Ryan Brown, Gregory P. DeVore, Jayna L. Ducatez, Simon Finnerty, Patrick Greenlees, Matthew Kaiser, Shannon W. McCann, Samantha Pettit, Lachlan Pizzatto, Ligia Schwarzkopf, Lin Ward-Fear, Georgia Phillips, Benjamin L. |
author_facet | Shine, Richard Alford, Ross A. Blennerhasset, Ryan Brown, Gregory P. DeVore, Jayna L. Ducatez, Simon Finnerty, Patrick Greenlees, Matthew Kaiser, Shannon W. McCann, Samantha Pettit, Lachlan Pizzatto, Ligia Schwarzkopf, Lin Ward-Fear, Georgia Phillips, Benjamin L. |
author_sort | Shine, Richard |
collection | PubMed |
description | Invasions often accelerate through time, as dispersal-enhancing traits accumulate at the expanding range edge. How does the dispersal behaviour of individual organisms shift to increase rates of population spread? We collate data from 44 radio-tracking studies (in total, of 650 animals) of cane toads (Rhinella marina) to quantify distances moved per day, and the frequency of displacement in their native range (French Guiana) and two invaded areas (Hawai’i and Australia). We show that toads in their native-range, Hawai’i and eastern Australia are relatively sedentary, while toads dispersing across tropical Australia increased their daily distances travelled from 20 to 200 m per day. That increase reflects an increasing propensity to change diurnal retreat sites every day, as well as to move further during each nocturnal displacement. Daily changes in retreat site evolved earlier than did changes in distances moved per night, indicating a breakdown in philopatry before other movement behaviours were optimised to maximise dispersal. |
format | Online Article Text |
id | pubmed-8651681 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-86516812021-12-08 Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion Shine, Richard Alford, Ross A. Blennerhasset, Ryan Brown, Gregory P. DeVore, Jayna L. Ducatez, Simon Finnerty, Patrick Greenlees, Matthew Kaiser, Shannon W. McCann, Samantha Pettit, Lachlan Pizzatto, Ligia Schwarzkopf, Lin Ward-Fear, Georgia Phillips, Benjamin L. Sci Rep Article Invasions often accelerate through time, as dispersal-enhancing traits accumulate at the expanding range edge. How does the dispersal behaviour of individual organisms shift to increase rates of population spread? We collate data from 44 radio-tracking studies (in total, of 650 animals) of cane toads (Rhinella marina) to quantify distances moved per day, and the frequency of displacement in their native range (French Guiana) and two invaded areas (Hawai’i and Australia). We show that toads in their native-range, Hawai’i and eastern Australia are relatively sedentary, while toads dispersing across tropical Australia increased their daily distances travelled from 20 to 200 m per day. That increase reflects an increasing propensity to change diurnal retreat sites every day, as well as to move further during each nocturnal displacement. Daily changes in retreat site evolved earlier than did changes in distances moved per night, indicating a breakdown in philopatry before other movement behaviours were optimised to maximise dispersal. Nature Publishing Group UK 2021-12-07 /pmc/articles/PMC8651681/ /pubmed/34876612 http://dx.doi.org/10.1038/s41598-021-02828-5 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Shine, Richard Alford, Ross A. Blennerhasset, Ryan Brown, Gregory P. DeVore, Jayna L. Ducatez, Simon Finnerty, Patrick Greenlees, Matthew Kaiser, Shannon W. McCann, Samantha Pettit, Lachlan Pizzatto, Ligia Schwarzkopf, Lin Ward-Fear, Georgia Phillips, Benjamin L. Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion |
title | Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion |
title_full | Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion |
title_fullStr | Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion |
title_full_unstemmed | Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion |
title_short | Increased rates of dispersal of free-ranging cane toads (Rhinella marina) during their global invasion |
title_sort | increased rates of dispersal of free-ranging cane toads (rhinella marina) during their global invasion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8651681/ https://www.ncbi.nlm.nih.gov/pubmed/34876612 http://dx.doi.org/10.1038/s41598-021-02828-5 |
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