Impacts of urbanisation on biodiversity: the role of species mobility, degree of specialisation and spatial scaleOikos - Tập 124 Số 12 - Trang 1571-1582 - 2015
Elena D. Concepción, Marco Moretti, Florian Altermatt, Michael P. Nobis, Martin К. Obrist
Urbanisation has an important impact on biodiversity, mostly driving changes in species assemblages, through the replacement of specialist with generalist species, thus leading to biotic homogenisation. Mobility is also assumed to greatly affect species’ ability to cope in urban environments. Moreover, specialisation, mobility and their interaction are expected to greatly influence ecologi...... hiện toàn bộ
Interactive effects of landscape and weather on dispersalOikos - Tập 122 Số 11 - Trang 1576-1585 - 2013
Thomas Delattre, Michel Baguette, Françoise Burel, Virginie M. Stevens, Hervé Quènol, Philippe Vernon
Over the last decades, many species have been forced to track their shifting climate envelopes, and at the same time man‐induced landscape fragmentation has led to the global decrease of natural habitat availability and connectivity. The interaction between these two co‐occurring global environmental changes might have very strong effects on biodiversity that are still understudied. Specie...... hiện toàn bộ
Variation in trophic shift for stable isotope ratios of carbon, nitrogen, and sulfurOikos - Tập 102 Số 2 - Trang 378-390 - 2003
James H. McCutchan, William M. Lewis, Carol Kendall, Claire C. McGrath
Use of stable isotope ratios to trace pathways of organic matter among consumers requires knowledge of the isotopic shift between diet and consumer. Variation in trophic shift among consumers can be substantial. For data from the published literature and supplementary original data (excluding fluid‐feeding consumers), the mean isotopic shift for C was +0.5±0.13‰ rather than 0.0‰, as common...... hiện toàn bộ
Trait and density mediated indirect interactions in simple food websOikos - Tập 107 Số 2 - Trang 239-250 - 2004
Vlastimil Kr̆ivan, Oswald J. Schmitz
This article compares indirect trait‐mediated interactions in simple resource–consumer–predator food webs with those that are density‐mediated. It focuses on two well documented responses of consumers to predation risk: decrease in consumer activity and habitat switch. These behavioral effects are transmitted to resources and they cause similar indirect effects as those which are mediated ...... hiện toàn bộ