Buscar
Mostrando ítems 11-20 de 255
Thresholds in the relationship between functional diversity and patch size for mammals in the Brazilian Atlantic Forest
(Wiley-Blackwell, 2015-12-01)
Patch size affects abundance and diversity of mammal species, but there is little information on threshold regarding this relationship or relating it to functional diversity. Therefore, we aimed with this study to (1) ...
Threshold resummation for the prompt-photon cross section revisited
(American Physical Society, 2005-07)
We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→γX at high transverse momentum of the photon. These corrections arise near the threshold for ...
Beyond the Fragmentation Threshold Hypothesis: Regime Shifts in Biodiversity Across Fragmented Landscapes
(PUBLIC LIBRARY SCIENCE, 2010)
Ecological systems are vulnerable to irreversible change when key system properties are pushed over thresholds, resulting in the loss of resilience and the precipitation of a regime shift. Perhaps the most important of ...
Spatial patterns of bird community similarity: Bird responses to landscape composition and configuration in the Atlantic forest
(Springer, 2010-01)
Studies dealing with community similarity are necessary to understand large scale ecological processes causing biodiversity loss and to improve landscape and regional planning. Here, we study landscape variables influencing ...
Planetesimal fragmentation and giant planet formation
(EDP Sciences, 2019-05)
Context. Most planet formation models that incorporate planetesimal fragmentation consider a catastrophic impact energy threshold for basalts at a constant velocity of 3 km/s throughout the process of the formation of the ...
Threshold responses of Amazonian stream fishes to timing and extent of deforestation
(2018-08-01)
Deforestation is a primary driver of biodiversity change through habitat loss and fragmentation. Stream biodiversity may not respond to deforestation in a simple linear relationship. Rather, threshold responses to extent ...
Landscape, Climate and Hantavirus Cardiopulmonary Syndrome Outbreaks
(Springer, 2019)