Vista normal Vista MARC

Identifying drivers of forest resilience in long-term records from the Neotropics

Adolf, Carole [autora] | Tovar, Carolina [autora] | Kühn, Nicola [autora] | Behling, Hermann [autor] | Berrio, Juan Carlos [autor] | Domínguez Vázquez, Gabriela [autora] | Figueroa Rangel, Blanca Lorena [autora] | Gonzalez Carranza, Zaire [autora] | Islebe, Gerald A [autor] | Hooghiemstra, Henry [autor] | Neff, H [autor] | Olvera Vargas, Miguel [autor] | Whitney, Bronwen [autora] | Wooller, Matthew J [autor] | Willis, Katherine Jane [autora].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Resiliencia ecológica | Bosques tropicales | Palinología | Disturbio ecológico | PaleoecologíaTema(s) en inglés: Ecological resilience | Tropical forests | Palynology | Ecological disturbances | PaleoecologyDescriptor(es) geográficos: México | América Central | América del Sur Nota de acceso: Acceso en línea sin restricciones En: Biology Letters. volumen 16, número 4 (March 2020), páginas 1-7. --ISSN: 1469-6711Número de sistema: 60341Resumen:
Español

Here, we use 30 long-term, high-resolution palaeoecological records from Mexico, Central and South America to address two hypotheses regarding possible drivers of resilience in tropical forests as measured in terms of recovery rates from previous disturbances. First, we hypothesize that faster recovery rates are associated with regions of higher biodiversity, as suggested by the insurance hypothesis. And second, that resilience is due to intrinsic abiotic factors that are location specific, thus regions presently displaying resilience in terms of persistence to current climatic disturbances should also show higher recovery rates in the past. To test these hypotheses, we applied a threshold approach to identify past disturbances to forests within each sequence. We then compared the recovery rates to these events with pollen richness before the event. We also compared recovery rates of each site with a measure of present resilience in the region as demonstrated by measuring global vegetation persistence to climatic perturbations using satellite imagery. Preliminary results indeed show a positive relationship between pre-disturbance taxonomic richness and faster recovery rates. However, there is less evidence to support the concept that resilience is intrinsic to a region; patterns of resilience apparent in ecosystems presently are not necessarily conservative through time.

Recurso en línea: https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2020.0005
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Star ratings
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Signatura Estado Fecha de vencimiento Código de barras
Artículos Biblioteca Electrónica
Recursos en línea (RE) 		ECOSUR Recurso digital ECO40060341632

Acceso en línea sin restricciones

Here, we use 30 long-term, high-resolution palaeoecological records from Mexico, Central and South America to address two hypotheses regarding possible drivers of resilience in tropical forests as measured in terms of recovery rates from previous disturbances. First, we hypothesize that faster recovery rates are associated with regions of higher biodiversity, as suggested by the insurance hypothesis. And second, that resilience is due to intrinsic abiotic factors that are location specific, thus regions presently displaying resilience in terms of persistence to current climatic disturbances should also show higher recovery rates in the past. To test these hypotheses, we applied a threshold approach to identify past disturbances to forests within each sequence. We then compared the recovery rates to these events with pollen richness before the event. We also compared recovery rates of each site with a measure of present resilience in the region as demonstrated by measuring global vegetation persistence to climatic perturbations using satellite imagery. Preliminary results indeed show a positive relationship between pre-disturbance taxonomic richness and faster recovery rates. However, there is less evidence to support the concept that resilience is intrinsic to a region; patterns of resilience apparent in ecosystems presently are not necessarily conservative through time. spa

Disponible en línea

Adobe Acrobat profesional 6.0 o superior

Con tecnología Koha