Influence of prey dispersion on territory and group size of African lions: a test of the resource dispersion hypothesis.

abstract：:Small streams account for the majority of channel length in river basins worldwide and are the primary conveyors of terrestrial nutrients to rivers and ultimately the oceans. The controls of stream nutrient fluxes, however, are debated. Classical models emphasize that nutrient transport in streams integrates nutrient ...

journal_title：Ecology

authors： Brookshire EN,Valett HM,Gerber S

更新日期：2009-02-01 00:00:00

abstract：:Plant functional traits affect the capacity of herbivores to find, choose, and consume plants. However, in a community composed of different plant species, it is unclear what proportion of herbivory on a focal plant is explained by its own traits and which is explained by the characteristics of the surrounding vegetat...

journal_title：Ecology

authors： Loranger J,Meyer ST,Shipley B,Kattge J,Loranger H,Roscher C,Wirth C,Weisser WW

更新日期：2013-07-01 00:00:00

abstract：:Despite decades of interest, few studies have provided evidence supporting theoretical expectations for coupled relationships between aboveground and belowground diversity and ecosystem functioning in non-manipulated natural ecosystems. We characterized plant species richness and density, soil bacterial, fungal and eu...

journal_title：Ecology

authors： Porazinska DL,Farrer EC,Spasojevic MJ,Bueno de Mesquita CP,Sartwell SA,Smith JG,White CT,King AJ,Suding KN,Schmidt SK

更新日期：2018-09-01 00:00:00

abstract：:Sea turtle nesting presents a potential pathway to subsidize nutrient-poor dune ecosystems, which provide the nesting habitat for sea turtles. To assess whether this positive feedback between dune plants and turtle nests exists, we measured N concentration and delta15N values in dune soils, leaves from a common dune p...

journal_title：Ecology

authors： Hannan LB,Roth JD,Ehrhart LM,Weishampel JF

更新日期：2007-04-01 00:00:00

abstract：:Some species have disproportionate influence on assemblage structure, given their numbers or biomass. Most examples of such "strong interactors" come from small-scale experiments or from observations of the effects of invasive species. There is evidence that entire avian assemblages in open woodlands can be influenced...

journal_title：Ecology

authors： MacNally R,Bowen M,Howes A,McAlpine CA,Maron M

更新日期：2012-03-01 00:00:00

abstract：:Forests play an influential role in the global carbon (C) cycle, storing roughly half of terrestrial C and annually exchanging with the atmosphere more than five times the carbon dioxide (CO2 ) emitted by anthropogenic activities. Yet, scaling up from field-based measurements of forest C stocks and fluxes to understan...

journal_title：Ecology

authors： Anderson-Teixeira KJ,Wang MMH,McGarvey JC,Herrmann V,Tepley AJ,Bond-Lamberty B,LeBauer DS

更新日期：2018-06-01 00:00:00

abstract：:Historically, terrestrial food web theory has been compartmentalized into interactions among aboveground or belowground communities. In this study we took a more synthetic approach to understanding food web interactions by simultaneously examining four trophic levels and investigating how nutrient (nitrogen and carbon...

journal_title：Ecology

authors： Hines J,Megonigal JP,Denno RF

更新日期：2006-06-01 00:00:00

abstract：:Analyzing ecological data often requires modeling the autocorrelation created by spatial and temporal processes. Many seemingly disparate statistical methods used to account for autocorrelation can be expressed as regression models that include basis functions. Basis functions also enable ecologists to modify a wide r...

journal_title：Ecology

authors： Hefley TJ,Broms KM,Brost BM,Buderman FE,Kay SL,Scharf HR,Tipton JR,Williams PJ,Hooten MB

更新日期：2017-03-01 00:00:00

abstract：:Nestedness and modularity have been recurrently observed in species interaction networks. Some studies argue that those topologies result from selection against unstable networks, and others propose that they likely emerge from processes driving the interactions between pairs of species. Here we present a model that s...

journal_title：Ecology

authors： Pinheiro RBP,Felix GMF,Dormann CF,Mello MAR

更新日期：2019-09-01 00:00:00

abstract：:Species abundances in natural systems are usually close to some equilibrium, making mechanisms that maintain or prevent species coexistence difficult to discern. Biological control projects provide an opportunity to observe systems transition between equilibriums as a result of the influence of the newly introduced sp...

journal_title：Ecology

authors： LeBrun EG,Plowes RM,Gilbert LE

更新日期：2009-05-01 00:00:00

abstract：:The interplay between local and large spatial scale processes in open systems is often dependent upon ecological context and species specific factors such as longevity, dispersal capability, or vulnerability to predation. When disturbance clears patches in open systems, the successful reestablishment of adult colonize...

journal_title：Ecology

authors： Methratta ET,Petraitis PS

更新日期：2008-11-01 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：:Although negative relationships between diversity (frequently measured as species richness) and invasibility at neighborhood or community scales have often been reported, realistic natural diversity gradients have rarely been studied at this scale. We recreated a naturally occurring gradient in species richness to tes...

journal_title：Ecology

authors： Alofs KM,Fowler NL

更新日期：2013-03-01 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：:Spatially synchronous population dynamics are important to ecosystem functioning and have several potential causes. By looking at synchrony in plant productivity over 18 years across two elevations in three types of coastal marsh habitat dominated by different clonal plant species in Georgia, USA, we were able to expl...

journal_title：Ecology

authors： Liu W,Pennings SC

更新日期：2020-12-28 00:00:00

abstract：:Although many studies have investigated plant growth in the context of episodic herbivory and pressed resource availability, relatively few have examined how plant growth is affected by pulsed resources and chronic herbivory. Periodical cicada (Magicicada spp.) adults represent a pulsed detrital subsidy that fertilize...

journal_title：Ecology

authors： Yang LH,Karban R

更新日期：2019-06-01 00:00:00

abstract：:Herbivory and dispersal play roles in the coexistence of primary producers with shared resource limitation by imposing trade-offs either through apparent competition or dispersal limitation. These mechanisms of coexistence can further interact with meta-ecosystem effects, which results in spatial heterogeneity through...

journal_title：Ecology

authors： Marleau JN,Guichard F

更新日期：2019-06-01 00:00:00

abstract：:Consumers can alter decomposition rates through both feces and selective feeding in many ecosystems, but these combined effects have seldom been examined in tropical ecosystems. Members of the detrital food web (litter-feeders or microbivores) should presumably have greater effects on decomposition than herbivores, me...

journal_title：Ecology

authors： Prather CM,Belovsky GE,Cantrell SA,González G

更新日期：2018-04-01 00:00:00

abstract：:Population growth and decline are particularly sensitive to changes in three key life-history parameters: annual productivity, juvenile survival, and adult survival. However, for many species these parameters remain unknown. For example, although grassland songbirds are imperiled throughout North America, for this gui...

journal_title：Ecology

authors： Perlut NG,Strong AM,Donovan TM,Buckley NJ

更新日期：2008-07-01 00:00:00

abstract：:Population responses of synanthropic species to urbanization may be explained by the resource-matching rule, which postulates that individuals should distribute themselves according to resource availability. According to the resource-matching rule, urban habitats will contain greater densities if they provide better r...

journal_title：Ecology

authors： Rodewald AD,Shustack DP

更新日期：2008-02-01 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：:Leaf dynamics, nutrient (N, P, K, Ca, and Na) changes, and retranslocation from the leaves of 13 species were investigated in four representative forest communities of the Central Himalaya, India. In evergreens of the temperate regions, with leaf longevities of several years, there is negligible movement of substances...

journal_title：Ecology

authors： Ralhan PK,Singh SP

更新日期：1987-12-01 00:00:00

abstract：:In detritus-based ecosystems, autochthonous primary production contributes very little to the detritus pool. Yet primary producers may still influence the functioning of these ecosystems through complex interactions with decomposers and detritivores. Recent studies have suggested that, in aquatic systems, small amount...

journal_title：Ecology

authors： Danger M,Cornut J,Chauvet E,Chavez P,Elger A,Lecerf A

更新日期：2013-07-01 00:00:00

abstract：:The ecological impact of rapid environmental change will depend on the resistance of key ecosystems processes, which may be promoted by species that exert strong control over local environmental conditions. Recent theoretical work suggests that macrodetritivores increase the resistance of African savanna ecosystems to...

journal_title：Ecology

authors： Veldhuis MP,Laso FJ,Olff H,Berg MP

更新日期：2017-02-01 00:00:00

abstract：:Joint species distribution modeling has enabled researchers to move from species-level to community-level analyses, leading to statistically more efficient and ecologically more informative use of data. Here, we propose joint species movement modeling (JSMM) as an analogous approach that enables inferring both species...

journal_title：Ecology

authors： Ovaskainen O,Ramos DL,Slade EM,Merckx T,Tikhonov G,Pennanen J,Pizo MA,Ribeiro MC,Morales JM

更新日期：2019-04-01 00:00:00

abstract：:By inflicting damage to prey tissues, consumer species may increase stress in prey hosts and reduce overall fitness (i.e., primary effects, such as growth or reproduction) or cause secondary effects by affecting prey interactions with other species such as microbes. However, little is known about how abiotic condition...

journal_title：Ecology

authors： Shaver EC,Shantz AA,McMinds R,Burkepile DE,Vega Thurber RL,Silliman BR

更新日期：2017-03-01 00:00:00

abstract：:Changes in species diversity often result from species losses and gains. The dynamic nature of beta diversity (spatial variation in species composition) that derives from such temporal species turnover, however, has received relatively little attention. Here, we disentangled extinction and colonization components of b...

journal_title：Ecology

authors： Tatsumi S,Strengbom J,Čugunovs M,Kouki J

更新日期：2020-12-01 00:00:00

abstract：:Although direct tree demographic responses to drought are widely recognized, studies of drought-mediated changes in tree interactions are rare. We hypothesize that drought exacerbates soil-water limitation and intensifies competition for water, but reduces light limitation and competition for light. We predict that co...

journal_title：Ecology

authors： Chen Y,Uriarte M,Wright SJ,Yu S

更新日期：2019-09-01 00:00:00

abstract：:Alternative successional trajectories (AST) may result in multiple climax states within an ecosystem when disturbances affect colonization history. In the boreal forest, ungulates have been proposed to drive AST because, under herbivore pressure, preferred species may go extinct and apparent competition may benefit br...

journal_title：Ecology

authors： Hidding B,Tremblay JP,Côté SD

更新日期：2013-12-01 00:00:00

abstract：:Ecological theory suggests that pathogens are capable of regulating or limiting host population dynamics, and this relationship has been empirically established in several settings. However, although studies of childhood diseases were integral to the development of disease ecology, few studies show population limitati...

journal_title：Ecology

authors： Manlove K,Cassirer EF,Cross PC,Plowright RK,Hudson PJ

更新日期：2016-10-01 00:00:00