How to assess the temporal dynamics of landscape connectivity in ever-changing landscapes: a literature review     

Uroy  Léa  Alignier  Audrey  Mony  Cendrine  Foltête  Jean-Christophe  Ernoult  Aude 《Landscape Ecology》2021,36(9):2487-2504

Landscape Ecology - Landscape connectivity plays a key role in determining the persistence of species inhabiting fragmented habitat patches. In dynamic landscapes, most studies measure connectivity...  相似文献   

Landscape effects on the abundance and larval diet of the polyphagous pest Helicoverpa armigera in cotton fields in North Benin          下载免费PDF全文

Noelline Tsafack  Audrey Alignier  Graham P Head  Jae H Kim  Michel Goulard  Philippe Menozzi  Annie Ouin 《Pest management science》2016,72(8):1613-1626

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Agroecology landscapes     

Jeanneret  Ph.  Aviron  S.  Alignier  A.  Lavigne  C.  Helfenstein  J.  Herzog  F.  Kay  S.  Petit  S. 《Landscape Ecology》2021,36(8):2235-2257

Landscape Ecology - Agroecology combines agronomic and ecological concepts. It relies on the enhancement of biodiversity and related ecosystem services to support agricultural production. It is...  相似文献   

Patterns of forest vegetation responses to edge effect as revealed by a continuous approach     

Audrey Alignier  Marc Deconchat 《Annals of Forest Science》2013,70(6):601-609

Context

Understanding the variability of vegetation distribution and its determinants is a central issue for addressing the effects of edges on ecological processes. Recent studies have revealed inconsistencies in the patterns of responses to edge effects that raise important questions about their determinants. We investigated the edge effect response patterns by adapting a recently proposed continuous approach to the case of small forest fragments in southwestern France.

Methods

We surveyed forest understory vegetation (composition, species richness, and percent cover) and abiotic variables (soil temperature, moisture, pH, and canopy openness) along 28 transects across hard forest edges. We tested five statistical models to describe the response pattern of each variable (1) over all transects and (2) per transect. We then compared the response patterns as a function of the attributes of the edge (orientation, topography, and adjacent land cover) and forest patch size.

Results

Over all transects, a general decreasing trend was observed for all variables as the distance from the edge increased. In the individual transects, we evidenced a large variability in the response patterns that was not related to edge attributes or to patch size.

Conclusion

It is difficult to assess the depth of edge influence in highly fragmented forests and to identify the determinants of edge effects. We recommend that care should be taken with studies using pool of transects, and that further studies should be carried out including situations with neutral patterns, in order to gain a broader understanding of edge effects on vegetation.  相似文献