Integrated assessment of the direct and indirect effects of resource gradients on tree species recruitment.

abstract：:The input of external energy and matter in recipient ecosystems can act as a bottom-up force that subsidizes consumers, with subsequent cascading effects throughout the food web. Depending on the amount of input, dietary preference, and the strength of trophic links, allochthonous resources generally play a stabilizin...

journal_title：Ecology

authors： Recalde FC,Breviglieri CPB,Romero GQ

更新日期：2020-08-01 00:00:00

abstract：:Humans are implicated as a major driver of species extinctions from the Late Pleistocene to the present. However, our predictive understanding of human-caused extinction remains poor due to the restricted temporal and spatial scales at which this process is typically assessed, and the risks of bias due to "extinction ...

journal_title：Ecology

authors： Crees JJ,Turvey ST,Freeman R,Carbone C

更新日期：2019-09-01 00:00:00

abstract：:Responses to proximate cues that directly affect fitness or cues directly released by selective agents are well-documented forms of phenotypic plasticity. For example, to reduce predation risk, prey change phenotype in response to light level (e.g., moon phase) when light affects predation risk from visual predators, ...

journal_title：Ecology

authors： Miehls AL,McAdam AG,Bourdeau PE,Peacor SD

更新日期：2013-10-01 00:00:00

abstract：:The magnitude and direction of biological effects of environmental disturbances can vary considerably, especially among studies that use presence/absence manipulations. Because nonlinearities (e.g., humped relationships) are common in biological systems, this heterogeneity in effects may arise if systems are similar i...

journal_title：Ecology

authors： Gil MA

更新日期：2013-08-01 00:00:00

abstract：:Black spruce (Picea mariana) is the most abundant tree species in the boreal biome, but little is known about how climate warming may change recruitment in peatlands, especially those affected by permafrost thaw. We used results from a seven-year study in northern Manitoba, Canada, to address the following questions: ...

journal_title：Ecology

authors： Camill P,Chihara L,Adams B,Andreassi C,Barry A,Kalim S,Limmer J,Mandell M,Rafert G

更新日期：2010-02-01 00:00:00

abstract：:Determining the relative contributions of intrinsic and extrinsic processes to the regulation of biological populations has been a recurrent ecological issue. Recent discussions concerning ecosystem "regime shifts" again raise the question of whether population fluctuations are mainly controlled by external forcing. R...

journal_title：Ecology

authors： Hsieh CH,Ohman MD

更新日期：2006-08-01 00:00:00

abstract：:Predicting the dynamics of ecosystems requires an understanding of how trophic interactions respond to environmental change. In Antarctic marine ecosystems, food web dynamics are inextricably linked to sea ice conditions that affect the nature and magnitude of primary food sources available to higher trophic levels. R...

journal_title：Ecology

authors： Norkko A,Thrush SF,Cummings VJ,Gibbs MM,Andrew NL,Norkko J,Schwarz AM

更新日期：2007-11-01 00:00:00

abstract：:The growth rate (GR) hypothesis relates the evolution of plant defense to resource availability and predicts that plants that have evolved in abiotically stressful environments grow inherently more slowly and are more constitutively resistant to herbivory than plants from more productive habitats. Stress-adapted plant...

journal_title：Ecology

authors： Van Zandt PA

更新日期：2007-08-01 00:00:00

abstract：:The greater abundance of some exotic plants in their nonnative ranges might be explained in part by biogeographic differences in the strength of competition, but these competitive effects have not been experimentally examined in the field. We compared the effects of neighbors on the growth and reproduction of spotted ...

journal_title：Ecology

authors： Callaway RM,Waller LP,Diaconu A,Pal R,Collins AR,Mueller-Schaerer H,Maron JL

更新日期：2011-12-01 00:00:00

abstract：:A principal impact of invasive species is that they reduce local species richness. However, it is unknown whether the magnitude of the richness decrease has been consistent over the past two decades of published research. We used cumulative meta-analysis to synthesize evidence from 240 articles evaluating whether this...

journal_title：Ecology

authors： Crystal-Ornelas R,Lockwood JL

更新日期：2020-08-01 00:00:00

abstract：:Extreme events shape population and community trajectories. We report episodic mortality across common species of thousands of long-lived perennials individually tagged and monitored for 20 years in the Colorado Desert of California following severe regional drought. Demographic records from 1984 to 2004 show 15 years...

journal_title：Ecology

authors： Miriti MN,Rodríguez-Buriticá S,Wright SJ,Howe HF

更新日期：2007-01-01 00:00:00

abstract：:The diversity and composition of local communities depends strongly on the pool of species that have been able to colonize that community from elsewhere. Typically this is thought to depend on a larger regional species pool that is subject to local environmental constraints that act as "filters." Often, however, colon...

journal_title：Ecology

authors： Cuellar-Gempeler C,Leibold MA

更新日期：2019-04-01 00:00:00

abstract：:Plant biomass or productivity and the species richness of birds are associated across a range of spatial scales. Species-energy theory is generally assumed to explain these correlations. If true, bird richness should also track productivity temporally, and there should be spatial and temporal relationships between pro...

journal_title：Ecology

authors： Dobson LL,La Sorte FA,Manne LL,Hawkins BA

更新日期：2015-04-01 00:00:00

abstract：:Disturbance such as wildfire may create opportunities for plant communities to reorganize in response to climate change. The interaction between climate change and disturbance may be particularly important in forests, where many of the foundational plant species (trees) are long-lived and where poor initial tree estab...

journal_title：Ecology

authors： Young DJN,Werner CM,Welch KR,Young TP,Safford HD,Latimer AM

更新日期：2019-02-01 00:00:00

abstract：:Factors controlling the spatial distribution of bacterial diversity have been intensely studied, whereas less is known about temporal changes. To address this, we tested whether the mechanisms that underlie bacterial temporal beta-diversity vary across different scales in three marine microbial communities. While seas...

journal_title：Ecology

authors： Hatosy SM,Martiny JB,Sachdeva R,Steele J,Fuhrman JA,Martiny AC

更新日期：2013-09-01 00:00:00

abstract：:Species richness has been shown to increase biomass production of plant communities. Such overyielding occurs when a community performs better than its component monocultures due to the complementarity or dominance effect and is mostly detected in substrate-bound plant communities (terrestrial plants or submerged macr...

journal_title：Ecology

authors： Schmidtke A,Gaedke U,Weithoff G

更新日期：2010-01-01 00:00:00

abstract：:Models of two-patch predator-prey metacommunities are used to explore how the global predator population changes in response to additional mortality in one of the patches. This could describe the dynamics of a predator in an environment that includes a refuge area where that predator is protected and a spatially disti...

journal_title：Ecology

authors： Abrams PA,Ruokolainen L,Shuter BJ,McCann KS

更新日期：2012-02-01 00:00:00

abstract：:Soil microbial communities have the metabolic and genetic capability to adapt to changing environmental conditions on very short time scales. In this paper we combine biogeochemical and molecular approaches to reveal this potential, showing that microbial biomass can turn over on time scales of days to months in soil,...

journal_title：Ecology

authors： Schmidt SK,Costello EK,Nemergut DR,Cleveland CC,Reed SC,Weintraub MN,Meyer AF,Martin AM

更新日期：2007-06-01 00:00:00

abstract：:Understanding and modeling population change is urgently needed to predict effects of climate change on biodiversity. High trophic-level organisms are influenced by fluctuations of prey quality and abundance, which themselves may depend on climate oscillations. Modeling effects of such fluctuations is challenging beca...

journal_title：Ecology

authors： Champagnon J,Lebreton JD,Drummond H,Anderson DJ

更新日期：2018-05-01 00:00:00

abstract：:Climatic extremes, such as severe drought, are expected to increase in frequency and magnitude with climate change. Thus, identifying mechanisms of resilience is critical to predicting the vulnerability of ecosystems. An exceptional drought (

journal_title：Ecology

authors： Wilcox KR,Koerner SE,Hoover DL,Borkenhagen AK,Burkepile DE,Collins SL,Hoffman AM,Kirkman KP,Knapp AK,Strydom T,Thompson DI,Smith MD

更新日期：2020-04-01 00:00:00

abstract：:Many young birds on the Arctic tundra are confronted by a challenging task: they must molt their feathers and accumulate fat stores for the autumn migration before climatic conditions deteriorate. Our understanding of the costs and constraints associated with these stages is extremely limited. We investigated post-juv...

journal_title：Ecology

authors： Bonier F,Martin PR,Jensen JP,Butler LK,Ramenofsky M,Wingfield JC

更新日期：2007-11-01 00:00:00

abstract：:The importance of density dependence in natural communities continues to spark much debate because it is fundamental to population regulation. We used temporal manipulations of density to explore potentially stabilizing density dependence in early survivorship among six local populations of a tropical damselfish (Dasc...

journal_title：Ecology

authors： Schmitt RJ,Holbrook SJ

更新日期：2007-05-01 00:00:00

abstract：:Greater resource use by diverse communities might result from species occupying complementary niches. Demonstrating niche complementarity among species is challenging, however, due to the difficulty in relating differences between species in particular traits to their use of complementary resources. Here, we overcame ...

journal_title：Ecology

authors： Gable JT,Crowder DW,Northfield TD,Steffan SA,Snyder WE

更新日期：2012-09-01 00:00:00

abstract：:The large variation in seed mass among species inspired a vast array of theoretical and empirical research attempting to explain this variation. So far, seed mass variation was investigated by two classes of studies. One class focuses on species varying in seed mass within communities, while the second focuses on vari...

journal_title：Ecology

authors： DeMalach N,Kadmon R

更新日期：2018-10-01 00:00:00

abstract：:The majority of food web studies are based on connectivity, top-down impacts, bottom-up flows, or trophic position (TP), and ecologists have argued for decades which is best. Rarely have any two been considered simultaneously. The present study uses a procedure that integrates the last three approaches based on taxon-...

journal_title：Ecology

authors： Benke AC

更新日期：2018-06-01 00:00:00

abstract：:Ants are a widespread group of ecologically important insects. Therefore, ants that are important predators of other ants are likely to play key roles by changing the abundance and impacts of their prey. Familiar arthropod predators, like army ants, are known for their overwhelming raids on invertebrate prey but are l...

journal_title：Ecology

authors： Ohyama L,King JR,Jenkins DG

更新日期：2020-08-01 00:00:00

abstract：:Seed dispersal fundamentally influences plant population and community dynamics but is difficult to quantify directly. Consequently, models are frequently used to describe the seed shadow (the seed deposition pattern of a plant population). For vertebrate-dispersed plants, animal behavior is known to influence seed sh...

journal_title：Ecology

authors： Russo SE,Portnoy S,Augspurger CK

更新日期：2006-12-01 00:00:00

abstract：:Although regional and global models of nitrogen (N) cycling typically focus on nitrate, dissolved organic nitrogen (DON) is the dominant form of nitrogen export from many watersheds and thus the dominant form of dissolved N in many streams. Our understanding of the processes controlling DON export from temperate fores...

journal_title：Ecology

authors： Lutz BD,Bernhardt ES,Roberts BJ,Mulholland PJ

更新日期：2011-03-01 00:00:00

abstract：:For animals living in natural or semi-natural settings, empirical data on how sociality changes in response to increasing population density are few, especially with respect to true conspecific density and not group size. However, insight into this line of research may be far-reaching--from understanding density depen...

journal_title：Ecology

authors： Vander Wal E,Yip H,McLoughlin PD

更新日期：2012-01-01 00:00:00

abstract：:Africa is home to the last intact guild of large carnivores and thus provides the only opportunity to investigate mechanisms of coexistence among large predator species. Strong asymmetric dominance hierarchies typically characterize guilds of large carnivores; but despite this asymmetry, subdominant species may persis...

journal_title：Ecology

authors： Cozzi G,Broekhuis F,McNutt JW,Turnbull LA,Macdonald DW,Schmid B

更新日期：2012-12-01 00:00:00