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Analysing benthic communities in the Weddell Sea (Antarctica): a landscape approach

Authors: Teixidó, Nuria;

Analysing benthic communities in the Weddell Sea (Antarctica): a landscape approach

Abstract

[ES] El bentos antártico muestra comunidades muy complejas con un amplio arreglo de patrones espaciales que han sido pobremente cuantificados. En este estudio, se introdujeron métodos utilizados en la Ecología del Paisaje (Landscape Ecology) para analizar cuantitativamente patrones espaciales de las comunidades megaepibénticas antárticas. Esta disciplina se funda en la idea que las comunidades pueden observarse a cualquier escala como un mosaico compuesto por varios parches (patches). Desde esta perspectiva, se aplicaron índices de paisaje para el estudio de patrones espaciales (en una serie de estaciones) en una comunidad no perturbada y a lo largo de estadios de sucesión después de perturbaciones por el paso de icebergs. En este estudio i) se caracteriza la cobertura y abundancia de fauna béntica sésil, ii) se describe la heterogeneidad faunística usando técnicas de ordenación y se identifican “especies estructurales” para cada estadio de sucesión, iii) se analizan cambios en los patrones de las formas de crecimiento a lo largo de la sucesión y iv) se relaciona rasgos de la historia de vida de las “especies estructurales” con diferencias en la distribución en el curso de la sucesión. [...]

[EN] Antarctic benthos exhibits highly complex communities with a wide array of spatial patterns at several scales which have been poorly quantified. In this study, I introduce the use of methods borrowed from landscape ecology to analyse quantitatively spatial patterns in Antarctic mega-epibenthic communities. This discipline focuses on the notion that communities can be observed as a patch mosaic at any scale. From this perspective I investigated spatial patterns based on landscape indices in an undisturbed benthic assemblage across different stations; and through successional stages after iceberg disturbance. The present study i) characterizes coverage and abundance of sessile benthic fauna, ii) describes faunal heterogeneity using ordination techniques and identifies “structural species” from each successional stage, iii) analyses changes of growth-form patterns through succession, and iv) relates the life-history traits of “structural species” to differences in distribution during the course of Antarctic succession.[...]

Memoria de tesis doctoral presentada por Núria Teixidó Ullod para obtener el título de Doktor der Naturwissenschaften por la Universität Bremen

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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