Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana

Abstract Like most invasive species, cane toads have attracted less research in their native range than in invaded areas. We radio-tracked 34 free-ranging toads in French Guiana, a source region for most invasive populations, across two coastal and two rainforest sites. Coastal toads generally shelt...

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Autores principales:	Jayna L. DeVore, Richard Shine, Simon Ducatez
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/020444ab67774656bfdbf6b106584ce2
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spelling	oai:doaj.org-article:020444ab67774656bfdbf6b106584ce22021-12-02T15:02:23ZSpatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana10.1038/s41598-021-91262-82045-2322https://doaj.org/article/020444ab67774656bfdbf6b106584ce22021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91262-8https://doaj.org/toc/2045-2322Abstract Like most invasive species, cane toads have attracted less research in their native range than in invaded areas. We radio-tracked 34 free-ranging toads in French Guiana, a source region for most invasive populations, across two coastal and two rainforest sites. Coastal toads generally sheltered in pools of fresh or brackish water but nocturnally foraged on beaches, whereas rainforest toads sheltered in forested habitats, moving into open areas at night. Over five days of monitoring, native toads frequently re-used shelters and moved little between days (means = 10–63 m/site) compared to invasion-front toads from Australia (~ 250 m). Larger toads moved less between days, but displaced in more consistent directions. At night, foraging toads travelled up to 200 m before returning to shelters. Foraging distance was related to body condition at coastal sites, with toads in poorer body condition travelling farther. Rain increased the probability of coastal toads sheltering in the dry habitats where they foraged. Dispersal and rainfall were lower at coastal sites, and the strategies utilized by coastal toads to minimize water loss resembled those of invasive toads in semi-desert habitats. This global invader already exhibits a broad environmental niche and substantial behavioural flexibility within its native range.Jayna L. DeVoreRichard ShineSimon DucatezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jayna L. DeVore Richard Shine Simon Ducatez Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana
description	Abstract Like most invasive species, cane toads have attracted less research in their native range than in invaded areas. We radio-tracked 34 free-ranging toads in French Guiana, a source region for most invasive populations, across two coastal and two rainforest sites. Coastal toads generally sheltered in pools of fresh or brackish water but nocturnally foraged on beaches, whereas rainforest toads sheltered in forested habitats, moving into open areas at night. Over five days of monitoring, native toads frequently re-used shelters and moved little between days (means = 10–63 m/site) compared to invasion-front toads from Australia (~ 250 m). Larger toads moved less between days, but displaced in more consistent directions. At night, foraging toads travelled up to 200 m before returning to shelters. Foraging distance was related to body condition at coastal sites, with toads in poorer body condition travelling farther. Rain increased the probability of coastal toads sheltering in the dry habitats where they foraged. Dispersal and rainfall were lower at coastal sites, and the strategies utilized by coastal toads to minimize water loss resembled those of invasive toads in semi-desert habitats. This global invader already exhibits a broad environmental niche and substantial behavioural flexibility within its native range.
format	article
author	Jayna L. DeVore Richard Shine Simon Ducatez
author_facet	Jayna L. DeVore Richard Shine Simon Ducatez
author_sort	Jayna L. DeVore
title	Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana
title_short	Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana
title_full	Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana
title_fullStr	Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana
title_full_unstemmed	Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana
title_sort	spatial ecology of cane toads (rhinella marina) in their native range: a radiotelemetric study from french guiana
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/020444ab67774656bfdbf6b106584ce2
work_keys_str_mv	AT jaynaldevore spatialecologyofcanetoadsrhinellamarinaintheirnativerangearadiotelemetricstudyfromfrenchguiana AT richardshine spatialecologyofcanetoadsrhinellamarinaintheirnativerangearadiotelemetricstudyfromfrenchguiana AT simonducatez spatialecologyofcanetoadsrhinellamarinaintheirnativerangearadiotelemetricstudyfromfrenchguiana
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Spatial ecology of cane toads (Rhinella marina) in their native range: a radiotelemetric study from French Guiana

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