Response of estuarine meiofauna communities to shifts in spatial distribution of keystone species: An experimental approach

Citadin, Monica; Costa, Tânia; Netto, Sérgio Antônio

Response of estuarine meiofauna communities to shifts in spatial distribution of keystone species: An experimental approach

dc.contributor.author	Citadin, Monica
dc.contributor.author	Costa, Tânia
dc.contributor.author	Netto, Sérgio Antônio
dc.coverage.spatial	Reino Unido	pt_BR
dc.date.accessioned	2019-12-19T15:32:49Z
dc.date.accessioned	2020-11-26T17:41:17Z
dc.date.available	2019-12-19T15:32:49Z
dc.date.available	2020-11-26T17:41:17Z
dc.date.issued	2018	pt_BR
dc.description.abstract	Current climate change directly affects species distribution by altering their physical environment and indirectly by altering interspecific interactions. The geographical distribution of fiddler crabs, keystone species of intertidal estuarine sediments, is supposed to expand poleward as a response to climate change. We experimentally investigate whether the introduction of a new species of fiddler crabs, where another different species already occurs, may affect the structural and functional composition of meiobenthic communities in intertidal areas. In order to disentangle the effect of abundance from species identity, we set up two indoor experiments (substitutive and a partial additive design) manipulating the diversity and density of two keystone species, Leptuca uruguayensis and L. leptodactyla. The results showed that the increase of the diversity keystone species did not impact any measured descriptors of nematode assemblages. By contrast, high density of keystone species, independent of the species, strongly affected the meiofauna total density, and the density of numerically dominant nematode genera. The results did not reveal any functional change in the meiofauna. Our experiments, designed to mimic the indirect effects of range expansion showed that while increasing diversity of functionally redundant keystone species had no effect on preys, increasing density negatively affected the structure of intertidal habitats.	pt_BR
dc.description.sponsorship	CNPq, FAPESP, CNPq	pt_BR
dc.format.extent	365-371	pt_BR
dc.identifier	junho	pt_BR
dc.identifier.issn	0272-7714	pt_BR
dc.identifier.uri	https://www.sciencedirect.com/science/article/pii/S0272771417304407	pt_BR
dc.identifier.uri	https://repositorio.animaeducacao.com.br/handle/ANIMA/2675
dc.language.iso	en_US	pt_BR
dc.relation.ispartofseries	212	pt_BR
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/br/	*
dc.subject	Range shifts	pt_BR
dc.subject	Global warming	pt_BR
dc.subject	Meiofauna	pt_BR
dc.subject	Nematodes	pt_BR
dc.subject	Fiddler crab	pt_BR
dc.title	Response of estuarine meiofauna communities to shifts in spatial distribution of keystone species: An experimental approach	pt_BR
dc.title.alternative	Response of estuarine meiofauna communities to shifts in spatial distribution of keystone species: An experimental approach	pt_BR
dc.type	Artigo de Periodico	pt_BR
local.affiliation.ies	Unisul
local.author.curso	Produção Científica	pt_BR
local.author.unidade	Ânima	pt_BR
local.rights.policy	Acesso embargado	pt_BR
local.subject.area	Ciências Biológicas	pt_BR
local.subject.areaanima	Ciências Humanas	pt_BR