Nematodes associated with mammals in the Great American Biotic Interchange (GABI)

The Great American Biotic Interchange (GABI) is a large-scale zoogeographic event that illustrates the exchange and diversification of mammals between North and South America. This phenomenon was accelerated by the connection of both landmasses during the Pliocene. Support for this phenomenon includ...

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Detalles Bibliográficos
Autores principales: Jiménez, Francisco Agustín, Notarnicola, Juliana, Gardner, Scott
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
GABI
Extintion
Diversification
Coevolution
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/99396
https://ri.conicet.gov.ar/11336/41205
https://revistas.ufrj.br/index.php/oa/article/view/9841
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-99396
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
GABI
Extintion
Diversification
Coevolution
spellingShingle Ciencias Naturales
GABI
Extintion
Diversification
Coevolution
Jiménez, Francisco Agustín
Notarnicola, Juliana
Gardner, Scott
Nematodes associated with mammals in the Great American Biotic Interchange (GABI)
topic_facet Ciencias Naturales
GABI
Extintion
Diversification
Coevolution
description The Great American Biotic Interchange (GABI) is a large-scale zoogeographic event that illustrates the exchange and diversification of mammals between North and South America. This phenomenon was accelerated by the connection of both landmasses during the Pliocene. Support for this phenomenon includes the extant distribution of xenarthrans, didelphiomorph marsupials, hystricognath and cricetine rodents, sciurids and carnivores, as well as the distribution of fossils in the stratigraphic record and the coalescence of genotypes. Contrasting with the relatively well-documented role and history of mammals in GABI, the role of their parasites has been largely neglected. As a consequence, the reconstructions of the causes of diversification, extinction and dispersion of groups of mammals during the Pliocene (and Miocene) invoke changes in climate patterns and the role of competitors or predators, yet in most cases the lines of evidence are not direct. We posit that infections with parasites offer a direct form of evidence of the role of interactions among species, by considering that the successful establishment of species of parasites in new groups of vertebrates will result in a net effect on their adaptive immune system. Thus, the current distribution of nematode parasites of the families Aspidoderidae, Nippostrongylidae, Onchocercidae, Oxyuridae, Rictaluriidae and Viannaidae offers evidence that the historical associations of these nematodes and their hosts diverge from the expected cospeciation and codivergence. Thus, clades of parasites infect disparate clades of mammals and, by deviating from the expected cospeciation, represent a paradox. This paradox deters investigators from studying historical associations among symbionts, since researchers lose the compelling simplicity of testing coevolutionary associations through the congruence of their resulting phylogenies. However, the reconstruction of historical associations must acknowledge the differential survival of parasites in novel hosts. This consideration is part of the Stockholm Paradigm, which includes the hypotheses known as Ecological Fitting, Oscillations, Taxon Pulses and Mosaics of Geographic Coevolution. We introduce nine host-parasite systems that provide insights on the role of parasites in GABI. We posit that the conservatism of parasite resource use, heritability of the adaptive immune system, and the genetic structure of parasites make it possible to elucidate the role of these parasites in GABI.
format Articulo
Articulo
author Jiménez, Francisco Agustín
Notarnicola, Juliana
Gardner, Scott
author_facet Jiménez, Francisco Agustín
Notarnicola, Juliana
Gardner, Scott
author_sort Jiménez, Francisco Agustín
title Nematodes associated with mammals in the Great American Biotic Interchange (GABI)
title_short Nematodes associated with mammals in the Great American Biotic Interchange (GABI)
title_full Nematodes associated with mammals in the Great American Biotic Interchange (GABI)
title_fullStr Nematodes associated with mammals in the Great American Biotic Interchange (GABI)
title_full_unstemmed Nematodes associated with mammals in the Great American Biotic Interchange (GABI)
title_sort nematodes associated with mammals in the great american biotic interchange (gabi)
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/99396
https://ri.conicet.gov.ar/11336/41205
https://revistas.ufrj.br/index.php/oa/article/view/9841
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