Mite density, not diversity, declines with biomass removal in Patagonian woodlands

Belowground biodiversity loss from anthropogenic causes is far less addressed and quantified than aboveground biodiversity loss. Soil fauna supports soil productivity and biogeochemical cycles, and their decline needs further research. We tested the effects of a woodland harvest gradient (0, 30, 50, and 70% biomass removal) on litterfall, mesofauna density, and Oribatida diversity in three sites of northwestern Patagonia (Argentina). Sites contrasted in plant community structure and productivity. Acari from litter and soil were compared. Annual litter production showed a 58% decline at the highest harvest intensity level, which was constant across sites. Litter structural α-diversity decreased with the highest intensity harvest only at the high productivity site. The density of soil-inhabiting Acari did not change with increasing harvest intensity, while the density of Acari inhabiting the litter decreased by 65% at the highest harvest intensity. Within Acari, Oribatida inhabiting the litter had the most sigificant density decline with increasing harvest intensity. Oribatida richness and α- diversity only differed among sites, suggesting resistance to increasing biomass removal despite shifts in litter production and litter structural diversity. Prostigmata did not respond to increasing biomass removal either in soil or litter. Our study is the first to assess Acari response to an aboveground biomass removal gradient in southern woodlands. Applying high biomass removal to low productivity sites can compromise micro detritivore density and thus, impair its functional role. Site productivity should be considered in management plans entailing conservation of soil fauna in southern woodlands.

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Bibliographic Details
Main Authors: Fernández, Margarita M., Casas, Cecilia, Bedano, José Camilo, Eissenstat, David M., Kaye, Margot W., García, Ivana M., Kun, Marcelo E., Garibaldi, Lucas Alejandro
Format: Texto biblioteca
Language:eng
Subjects:ACARI, ORIBATIDA, DENSITY, A-DIVERSITY, BIOMASS REMOVAL, WOODLANDS, ,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=55026
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id KOHA-OAI-AGRO:55026
record_format koha
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic ACARI
ORIBATIDA
DENSITY
A-DIVERSITY
BIOMASS REMOVAL
WOODLANDS

ACARI
ORIBATIDA
DENSITY
A-DIVERSITY
BIOMASS REMOVAL
WOODLANDS
spellingShingle ACARI
ORIBATIDA
DENSITY
A-DIVERSITY
BIOMASS REMOVAL
WOODLANDS

ACARI
ORIBATIDA
DENSITY
A-DIVERSITY
BIOMASS REMOVAL
WOODLANDS
Fernández, Margarita M.
Casas, Cecilia
Bedano, José Camilo
Eissenstat, David M.
Kaye, Margot W.
García, Ivana M.
Kun, Marcelo E.
Garibaldi, Lucas Alejandro
Mite density, not diversity, declines with biomass removal in Patagonian woodlands
description Belowground biodiversity loss from anthropogenic causes is far less addressed and quantified than aboveground biodiversity loss. Soil fauna supports soil productivity and biogeochemical cycles, and their decline needs further research. We tested the effects of a woodland harvest gradient (0, 30, 50, and 70% biomass removal) on litterfall, mesofauna density, and Oribatida diversity in three sites of northwestern Patagonia (Argentina). Sites contrasted in plant community structure and productivity. Acari from litter and soil were compared. Annual litter production showed a 58% decline at the highest harvest intensity level, which was constant across sites. Litter structural α-diversity decreased with the highest intensity harvest only at the high productivity site. The density of soil-inhabiting Acari did not change with increasing harvest intensity, while the density of Acari inhabiting the litter decreased by 65% at the highest harvest intensity. Within Acari, Oribatida inhabiting the litter had the most sigificant density decline with increasing harvest intensity. Oribatida richness and α- diversity only differed among sites, suggesting resistance to increasing biomass removal despite shifts in litter production and litter structural diversity. Prostigmata did not respond to increasing biomass removal either in soil or litter. Our study is the first to assess Acari response to an aboveground biomass removal gradient in southern woodlands. Applying high biomass removal to low productivity sites can compromise micro detritivore density and thus, impair its functional role. Site productivity should be considered in management plans entailing conservation of soil fauna in southern woodlands.
format Texto
topic_facet
ACARI
ORIBATIDA
DENSITY
A-DIVERSITY
BIOMASS REMOVAL
WOODLANDS
author Fernández, Margarita M.
Casas, Cecilia
Bedano, José Camilo
Eissenstat, David M.
Kaye, Margot W.
García, Ivana M.
Kun, Marcelo E.
Garibaldi, Lucas Alejandro
author_facet Fernández, Margarita M.
Casas, Cecilia
Bedano, José Camilo
Eissenstat, David M.
Kaye, Margot W.
García, Ivana M.
Kun, Marcelo E.
Garibaldi, Lucas Alejandro
author_sort Fernández, Margarita M.
title Mite density, not diversity, declines with biomass removal in Patagonian woodlands
title_short Mite density, not diversity, declines with biomass removal in Patagonian woodlands
title_full Mite density, not diversity, declines with biomass removal in Patagonian woodlands
title_fullStr Mite density, not diversity, declines with biomass removal in Patagonian woodlands
title_full_unstemmed Mite density, not diversity, declines with biomass removal in Patagonian woodlands
title_sort mite density, not diversity, declines with biomass removal in patagonian woodlands
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=55026
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http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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spelling KOHA-OAI-AGRO:550262023-09-25T15:07:38Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=55026http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGMite density, not diversity, declines with biomass removal in Patagonian woodlandsFernández, Margarita M.Casas, CeciliaBedano, José CamiloEissenstat, David M.Kaye, Margot W.García, Ivana M.Kun, Marcelo E.Garibaldi, Lucas Alejandrotextengapplication/pdfBelowground biodiversity loss from anthropogenic causes is far less addressed and quantified than aboveground biodiversity loss. Soil fauna supports soil productivity and biogeochemical cycles, and their decline needs further research. We tested the effects of a woodland harvest gradient (0, 30, 50, and 70% biomass removal) on litterfall, mesofauna density, and Oribatida diversity in three sites of northwestern Patagonia (Argentina). Sites contrasted in plant community structure and productivity. Acari from litter and soil were compared. Annual litter production showed a 58% decline at the highest harvest intensity level, which was constant across sites. Litter structural α-diversity decreased with the highest intensity harvest only at the high productivity site. The density of soil-inhabiting Acari did not change with increasing harvest intensity, while the density of Acari inhabiting the litter decreased by 65% at the highest harvest intensity. Within Acari, Oribatida inhabiting the litter had the most sigificant density decline with increasing harvest intensity. Oribatida richness and α- diversity only differed among sites, suggesting resistance to increasing biomass removal despite shifts in litter production and litter structural diversity. Prostigmata did not respond to increasing biomass removal either in soil or litter. Our study is the first to assess Acari response to an aboveground biomass removal gradient in southern woodlands. Applying high biomass removal to low productivity sites can compromise micro detritivore density and thus, impair its functional role. Site productivity should be considered in management plans entailing conservation of soil fauna in southern woodlands.Belowground biodiversity loss from anthropogenic causes is far less addressed and quantified than aboveground biodiversity loss. Soil fauna supports soil productivity and biogeochemical cycles, and their decline needs further research. We tested the effects of a woodland harvest gradient (0, 30, 50, and 70% biomass removal) on litterfall, mesofauna density, and Oribatida diversity in three sites of northwestern Patagonia (Argentina). Sites contrasted in plant community structure and productivity. Acari from litter and soil were compared. Annual litter production showed a 58% decline at the highest harvest intensity level, which was constant across sites. Litter structural α-diversity decreased with the highest intensity harvest only at the high productivity site. The density of soil-inhabiting Acari did not change with increasing harvest intensity, while the density of Acari inhabiting the litter decreased by 65% at the highest harvest intensity. Within Acari, Oribatida inhabiting the litter had the most sigificant density decline with increasing harvest intensity. Oribatida richness and α- diversity only differed among sites, suggesting resistance to increasing biomass removal despite shifts in litter production and litter structural diversity. Prostigmata did not respond to increasing biomass removal either in soil or litter. Our study is the first to assess Acari response to an aboveground biomass removal gradient in southern woodlands. Applying high biomass removal to low productivity sites can compromise micro detritivore density and thus, impair its functional role. Site productivity should be considered in management plans entailing conservation of soil fauna in southern woodlands.ACARIORIBATIDADENSITYA-DIVERSITYBIOMASS REMOVALWOODLANDSApplied Soil Ecology