Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?

Ferrante, Lucas; Baccaro, Fabricio Beggiato; Kaefer, Igor L.

Artigo

Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?

The American bullfrog Lithobates catesbeianus has a natural distribution in North America, but was spread by human activities in different regions around the world. It is listed as the most invasive amphibian species, affecting terrestrial and aquatic ecosystems and the community of native species....

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Autor principal:	Ferrante, Lucas
Outros Autores:	Baccaro, Fabricio Beggiato, Kaefer, Igor L.
Grau:	Artigo
Idioma:	English
Publicado em:	Herpetological Journal 2020
Assuntos:	Amphibians Anurans Biological invasions Community Ecology Exotic Species Fragmented landscape Freshwater biology Landscape Ecology
Acesso em linha:	https://repositorio.inpa.gov.br/handle/1/23255

id	oai:repositorio:1-23255
recordtype	dspace
spelling	oai:repositorio:1-23255 Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest? Ferrante, Lucas Baccaro, Fabricio Beggiato Kaefer, Igor L. Amphibians Anurans Biological invasions Community Ecology Exotic Species Fragmented landscape Freshwater biology Landscape Ecology The American bullfrog Lithobates catesbeianus has a natural distribution in North America, but was spread by human activities in different regions around the world. It is listed as the most invasive amphibian species, affecting terrestrial and aquatic ecosystems and the community of native species. In addition, the American bullfrog is extensively associated with lethal pathogens, with high correlation of the presence of this species with population declines and extinctions. Here we test if this alien species has spread through the landscape, establishing populations at new locations. We used diverse methods including georeferencing of satellite images, ethnobiological interviews and field data to evaluate the dispersion and effects of L. catesbeianus introduction on amphibian composition, species number, and density of individuals in forest fragments in an Atlantic Forest landscape. We did not find any relationship between density of individuals, number of species or composition of the native anuran assemblages in forest fragments in relation to the presence or proximity of American bullfrog introduction points. Additionally, we found that the dispersion potential of this species in the studied landscape is zero, as it was only found in those fragments where it was specifically introduced 15 years ago. The species has not established new populations in the landscape. Although exotic, L. catesbeianus thrives in lentic habitats and has no apparent effect on the structural metrics of the native anuran assemblage. Despite this alien species exhibiting a capacity to adapt and survive at the point of introduction, its potential for propagation is limited probably by the fragmented terrestrial landscape and regional stream network. © 2020, British Herpetological Society. All rights reserved. 2020-07-03T21:06:32Z 2020-07-03T21:06:32Z 2020 Artigo https://repositorio.inpa.gov.br/handle/1/23255 10.33256/hj30.2.9398 en Volume 30, Número 2, Pags. 93-98 Restrito Herpetological Journal
institution	Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection	INPA-RI
language	English
topic	Amphibians Anurans Biological invasions Community Ecology Exotic Species Fragmented landscape Freshwater biology Landscape Ecology
spellingShingle	Amphibians Anurans Biological invasions Community Ecology Exotic Species Fragmented landscape Freshwater biology Landscape Ecology Ferrante, Lucas Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
topic_facet	Amphibians Anurans Biological invasions Community Ecology Exotic Species Fragmented landscape Freshwater biology Landscape Ecology
description	The American bullfrog Lithobates catesbeianus has a natural distribution in North America, but was spread by human activities in different regions around the world. It is listed as the most invasive amphibian species, affecting terrestrial and aquatic ecosystems and the community of native species. In addition, the American bullfrog is extensively associated with lethal pathogens, with high correlation of the presence of this species with population declines and extinctions. Here we test if this alien species has spread through the landscape, establishing populations at new locations. We used diverse methods including georeferencing of satellite images, ethnobiological interviews and field data to evaluate the dispersion and effects of L. catesbeianus introduction on amphibian composition, species number, and density of individuals in forest fragments in an Atlantic Forest landscape. We did not find any relationship between density of individuals, number of species or composition of the native anuran assemblages in forest fragments in relation to the presence or proximity of American bullfrog introduction points. Additionally, we found that the dispersion potential of this species in the studied landscape is zero, as it was only found in those fragments where it was specifically introduced 15 years ago. The species has not established new populations in the landscape. Although exotic, L. catesbeianus thrives in lentic habitats and has no apparent effect on the structural metrics of the native anuran assemblage. Despite this alien species exhibiting a capacity to adapt and survive at the point of introduction, its potential for propagation is limited probably by the fragmented terrestrial landscape and regional stream network. © 2020, British Herpetological Society. All rights reserved.
format	Artigo
author	Ferrante, Lucas
author2	Baccaro, Fabricio Beggiato Kaefer, Igor L.
author2Str	Baccaro, Fabricio Beggiato Kaefer, Igor L.
title	Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
title_short	Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
title_full	Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
title_fullStr	Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
title_full_unstemmed	Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
title_sort	aliens in the backyard: did the american bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?
publisher	Herpetological Journal
publishDate	2020
url	https://repositorio.inpa.gov.br/handle/1/23255
_version_	1787142798955249664
score	11.653393

Aliens in the backyard: Did the American bullfrog conquer the habitat of native frogs in the semi-deciduous atlantic forest?

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