Results 131 to 140 of about 134,464 (266)

Time to burn: landscape drivers of fuel trait variability and fire regime in savanna ecosystems

Oikos, EarlyView.
Fuel traits are important determinants of fire behavior and regime in savannas and, thus, of how fire affects plant communities. However, whether these traits are correlated, predictable and how they are influenced by biotic and abiotic drivers remain to be rigorously evaluated.
Waleska B. F. Manzan, Karyna Oliveira Arantes, Vinícius L. Dantas   +2 more
wiley   +1 more source

Environmental Policy Update 2012: Development Strategies and Environmental Policy in East Africa [PDF]

, 2012
The seven chapters that comprise this report explore ways to integrate sustainability goals and objectives into Ethiopia's current development ...
Amanda Lavigueur, Bjorn Knutson, Cassady Roberts, Kathryn Lee, Kelly Kneeland, Larissa Lee, Lindley Wells, Nicholas J. Papanastassiou, Nina Hatch, Pat Adams, Sally Holmes   +10 more
core  

Recurrent drought amplifies drought impacts and increases seasonal synchrony in mountain grassland communities

Oikos, EarlyView.
Climate change increases the recurrence of drought events with strong repercussions on grassland ecosystems. While the effects of single drought events on ecosystem structure and functioning are well understood, it is largely unknown whether and how recurrent drought events modify ecosystem responses to subsequent drought.
Lena M. Müller, Michael Bahn, Maximillian Weidle, Georg Leitinger, Dina in 't Zandt   +4 more
wiley   +1 more source

Structural stability of plant–pollinator interactions despite seasonal abundance of long‐tongued hawkmoths

Oikos, EarlyView.
Seasonal environmental cycles affect plant–pollinator interactions by altering plant phenology. Periods of low resource availability can filter pollinators and reduce the complexity of interaction networks, but the extent to which the functional morphology of pollinators influences such filtering remains unclear.
Ugo M. Diniz, Luis M. Primo, Francisco A. R. Santos, Isabel C. Machado   +3 more
wiley   +1 more source

Increasing Sensitivity of Tree Radial Growth to Precipitation

Geophysical Research Letters
The sensitivity of tree growth to precipitation regulates their responses to drought, and is a crucial metric for predicting ecosystem dynamics and vulnerability.
Tiewei Li, Bin He, Deliang Chen, Hans W. Chen, Lanlan Guo, Wenping Yuan, Keyan Fang, Feng Shi, Lianyou Liu, Huan Zheng, Ling Huang, Xiuchen Wu, Xingming Hao, Xiang Zhao, Weiguo Jiang   +14 more
doaj   +1 more source

Expert‐led priorities for a response diversity research agenda in ecology

Oikos, EarlyView.
Response diversity describes variation in ecological responses to environmental change. Response diversity is expected to drive ecological stability since a wider variety of responses to one or more environmental factors should stabilise fluctuations of ecosystem functions. However, uptake of empirical response diversity research has been slow. Here we
Samuel R. P.‐J. Ross, Ceres Barros, Laura E. Dee, Mike S. Fowler, Owen L. Petchey, Takehiro Sasaki, Hannah J. White, Anna LoPresti   +7 more
wiley   +1 more source

Frugivory‐mediated trophic cascades: how apex predators can shape the recruitment of a fleshy‐fruited tree

Oikos, EarlyView.
The recovery of large carnivores offers unique opportunities to study their cascading impacts on plant population dynamics. Medium‐sized carnivores, both prey and seed dispersers, are suppressed by apex predators, indirectly increasing seed‐eating rodent's populations and potentially altering plant establishment.
Tamara Burgos, Jose María Fedriani, Gema Escribano‐Ávila, Emilio Virgós   +3 more
wiley   +1 more source

Contrasting effects of temperature across trophic levels in geothermally warmed soil food webs

Oikos, EarlyView.
Global warming is altering the structure and dynamics of ecological communities, with significant consequences for soil food webs. Rising temperatures are expected to accelerate metabolic rates in organisms, potentially altering species interactions, and the structure and energetics of food webs.
Estela Folch Chaos, Charlotte Alster, Louis Schipper, Andrew D. Barnes   +3 more
wiley   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

Fire buffers drought impacts on reproduction in a resprouting Mediterranean shrub

Oikos, EarlyView.
Fire and drought increasingly co‐occur, exposing plants to greater drought stress during post‐fire resprouting. Yet, the effect of this combination of disturbances on plant fitness remains poorly understood. Here, we examine how post‐fire resprouting influences reproductive success under drought conditions in the Mediterranean shrub Anthyllis ...
Jaime Saiz‐ Blanco, Conchita Alonso, Juli G. Pausas   +2 more
wiley   +1 more source