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dc.contributor.authorZamorano Elgueta, Carloses_ES
dc.contributor.authorCayuela Delgado, Luis es_ES
dc.contributor.authorRey Benayas, José María es_ES
dc.contributor.authorDonoso, Pablo
dc.contributor.authorGeneletti, Davide
dc.contributor.authorHobbs, Richard J.
dc.identifier.bibliographicCitationEcosphere, 2014, v. 5, n. 7, art. 90en
dc.description.abstractUnderstanding the processes shaping biological communities under interacting disturbances is a core challenge in ecology. Although the impacts of human-induced disturbances on forest ecosystems have been extensively studied, less attention has been paid to understanding how tree regeneration at the community level responds to such disturbances. Moreover, these previous studies have not considered how these effects change according to major social and environmental factors that can influence forest use at a landscape scale. In this study, we investigate the effects of cattle grazing and selective logging on the composition of tree regeneration communities in relation to forest successional stage and land tenure regime in Chilean temperate forests, a global biodiversity hotspot. We recorded seedlings, saplings and basal area of stumps of tree species (as a surrogate for selective logging), and number of cattle dung pats (as a surrogate for cattle pressure) in 129 25 3 20 m plots in small (,200 ha) and large properties in different successional stages (old-growth, intermediate, secondary forests). The regeneration of the ten more abundant species as predicted by human disturbance, land tenure, forest successional stage, and number of parent trees was modelled using generalised linear models. Predictions for each individual model were made under different scenarios of human disturbance. The predicted regeneration results were assembled and subjected to ordination analyses and permutation multivariate analyses of variance to determine differences in regeneration composition under each scenario. In most cases, best-fit models contained at least one of the explanatory variables accounting for human disturbance. The effects of selective logging on tree regeneration varied depending on land tenure regime, but cattle grazing always exhibited a negative effect. Our results revealed that cattle have a more negative effect on forest regeneration than selective logging, especially in old-growth forests and small properties. Our analytical approach contributes to the understanding of the differential influence of human-induced disturbances on the tree regeneration community at a landscape scale. It can inform conservation policies and actions, which should focus on addressing themain disturbance factors and on developing strategies to conserve the most sensitive species to such disturbances.en
dc.description.sponsorshipC. Zamorano-Elgueta was supported by a CON- ICYT pre-doctoral fellowship (Government of Chile), the European Comission (Project contract DCI-ENV/ 2010/222-412), the Chilean NGO Forest Engineers for Native Forest (Forestales por el Bosque Nativo, www. and project REMEDINAL-2 (Comu- nidad de Madrid, S2009/AMB-1783). L. Cayuela was supported by project REMEDINAL-2. This work is part of the objectives of projects CGL2010-18312 (CICYT, Ministerio de Economı́a y Competividad de Espana). The authors acknowledge the valuable support of Vero ́nica Pı́riz, Cony Becerra, Rodrigo Gangas, Oscar Concha, Eduardo Neira and staff from the Valdivian Coastal Reserve, as well as the National Forest Service of Chile (Corporación Nacional Forestal)en
dc.publisherEcological Society of Americaen
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Españaes_ES
dc.rights© Ecological Society of America, 2014en
dc.subjectCattle grazingen
dc.subjectCommunity compositionen
dc.subjectForest successional stagesen
dc.subjectLand tenureen
dc.subjectLow-intensity disturbanceen
dc.subject'Predict first, assemble later' modelingen
dc.subjectSelective loggingen
dc.subjectTemperate foresten
dc.titleThe differential influences of human-induced disturbances on tree regeneration community: a landscape approachen
dc.subject.ecienciaMedio Ambientees_ES
dc.subject.ecienciaEnvironmental scienceen
dc.contributor.affiliationUniversidad de Alcalá. Departamento de Ciencias de la Vida. Unidad docente Ecologíaes_ES
dc.relation.projectIDS2009/AMB-1783/REMEDINAL-2 (Comunidad de Madrid)
dc.relation.projectIDCGL2010-18312 (Ministerio de Economía y Competividad)

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