How functional traits, herbivory, and genetic diversity interact in Echinacea: implications for fragmented populations.

abstract：:Belowground herbivory is commonly overlooked as a mechanism of top-down control in vegetated habitats, particularly in aquatic ecosystems. Recent research has revealed that increased densities of the herbivorous crab Sesarma reticulatum have led to runaway herbivory and widespread salt marsh die-off on Cape Cod, Massa...

journal_title：Ecology

authors： Coverdale TC,Altieri AH,Bertness MD

更新日期：2012-09-01 00:00:00

abstract：:Theory predicts that reproduction will change as individuals near the end of their lives by either increasing reproductive allocation (terminal allocation hypothesis) or decreasing allocation (senescence hypothesis) toward the end of life. Although senescence has received more support, few studies examine how both age...

journal_title：Ecology

authors： Tarwater CE,Arcese P

更新日期：2017-09-01 00:00:00

abstract：:Bottom-up and top-down effects act together to exert strong control over plant growth and reproduction, but how physical stress modifies those interactive forces remains unclear. Even though empirical evidence is scarce, theory predicts that the importance of both top-down- and bottom-up forces may decrease as physica...

journal_title：Ecology

authors： Daleo P,Alberti J,Bruschetti CM,Pascual J,Iribarne O,Silliman BR

更新日期：2015-08-01 00:00:00

abstract：:The amount of fresh carbon input into soil is experiencing substantial changes under global change. It is unclear what will be the consequences of such input changes on native soil carbon decomposition across ecosystems. By synthesizing data from 143 experimental comparisons, we show that, on average, fresh carbon inp...

journal_title：Ecology

authors： Luo Z,Wang E,Smith C

更新日期：2015-10-01 00:00:00

abstract：:Ecosystems can undergo abrupt transitions between alternative stable states when the driver crosses a critical threshold. Dynamical systems theory shows that when ecosystems approach the point of loss of stability associated with these transitions, they take a long time to recover from perturbations, a phenomenon know...

journal_title：Ecology

authors： Majumder S,Tamma K,Ramaswamy S,Guttal V

更新日期：2019-07-01 00:00:00

abstract：:Increased drought intensity and frequency due to climate change may reduce the abundance and activity of nitrogen (N2 )-fixing plants, which supply new N to terrestrial ecosystems. As a result, drought may indirectly reduce ecosystem productivity through its effect on the N cycle. Here, we manipulated growing season n...

journal_title：Ecology

authors： Minucci JM,Miniat CF,Wurzburger N

更新日期：2019-12-01 00:00:00

abstract：:It has been proposed that plant biodiversity may increase the erosion resistance of soils, yet direct evidence for any such relationship is lacking. We conducted a mesocosm experiment with eight species of riparian herbaceous plants, and found evidence that plant biodiversity significantly reduced fluvial erosion rate...

journal_title：Ecology

authors： Allen DC,Cardinale BJ,Wynn-Thompson T

更新日期：2016-01-01 00:00:00

abstract：:Leaving a population without having information about the surrounding areas is highly risky. Candidates for dispersal may reduce these risks by making decisions based on the level of connectivity between patches, e.g., through immigrants. The benefits of information acquisition may vary within a population according t...

journal_title：Ecology

authors： Cote J,Clobert J

更新日期：2010-05-01 00:00:00

abstract：:Soil properties are well known to affect vegetation, but the role of soil heterogeneity in the patterning of vegetation dynamics is poorly documented. We asked whether the location of an ecotone separating grass-dominated and sparsely vegetated areas reflected only historical variation in degradation or was related to...

journal_title：Ecology

authors： Bestelmeyer BT,Ward JP,Havstad KM

更新日期：2006-04-01 00:00:00

abstract：:Long-term studies have revealed that the structure and dynamics of many tropical forests are changing, but the causes and consequences of these changes remain debated. To learn more about the forces driving changes within tropical forests, we investigated shifts in tree species composition over the past 25 years withi...

journal_title：Ecology

authors： Feeley KJ,Davies SJ,Perez R,Hubbell SP,Foster RB

更新日期：2011-04-01 00:00:00

abstract：:In conservation and evolutionary ecology, quantifying and accounting for individual heterogeneity in vital rates of open populations is of particular interest. Individual random effects have been used in capture-recapture models, adopting a Bayesian framework with Markov chain Monte Carlo (MCMC) to carry out estimatio...

journal_title：Ecology

authors： Gimenez O,Choquet R

更新日期：2010-04-01 00:00:00

abstract：:Ongoing climate change is shifting the geographic distributions of some species, potentially imposing rapid changes in local community structure and ecosystem functioning. Besides changes in population-level interspecific interactions, such range shifts may also cause changes in functional structure within the host as...

journal_title：Ecology

authors： Aguilera MA,Valdivia N,Broitman BR,Jenkins SR,Navarrete SA

更新日期：2020-11-01 00:00:00

abstract：:Local species diversity is maintained over ecological time by a balance between dispersal and species interactions. Local-regional species richness relationships are often used to investigate the relative importance of these two processes and the scales at which they operate. For communities undergoing succession, the...

journal_title：Ecology

authors： Damschen EI,Brudvig LA

更新日期：2012-04-01 00:00:00

abstract：:The structure of Caribbean coral reef communities has been altered by numerous anthropogenic and natural stressors. Demographic studies of key functional groups have furthered efforts to describe and understand these changes. Little is known, however, about the demographics of sponges on coral reefs, despite their abu...

journal_title：Ecology

authors： McMurray SE,Henkel TP,Pawlik JR

更新日期：2010-02-01 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：:Bioclimatic envelope models use associations between aspects of climate and species' occurrences to estimate the conditions that are suitable to maintain viable populations. Once bioclimatic envelopes are characterized, they can be applied to a variety of questions in ecology, evolution, and conservation. However, som...

journal_title：Ecology

authors： Araújo MB,Peterson AT

更新日期：2012-07-01 00:00:00

abstract：:Lightning fire is the dominant natural disturbance of the western mixedwood boreal forest of North America. We quantified the independent effects of weather and forest composition on lightning fire initiation (a detected and recorded fire start) patterns in Alberta, Canada, to demonstrate how these biotic and abiotic ...

journal_title：Ecology

authors： Krawchuk MA,Cumming SG,Flannigan MD,Wein RW

更新日期：2006-02-01 00:00:00

abstract：:Pollination and herbivory networks have mainly been studied separately, highlighting their distinct structural characteristics and the related processes and dynamics. However, most plants interact with both pollinators and herbivores, and there is evidence that both types of interaction affect each other. Here we inve...

journal_title：Ecology

authors： Sauve AMC,Thébault E,Pocock MJO,Fontaine C

更新日期：2016-04-01 00:00:00

abstract：:Predators can increase the biomass of their prey, particularly when prey life stages differ in competitive ability and predation is stage specific. Akin to predators, parasites influence host population sizes and engage in stage-structured interactions, yet whether parasites can increase host population biomass remain...

journal_title：Ecology

authors： Preston DL,Sauer EL

更新日期：2020-04-01 00:00:00

abstract：:Within most free-living species exists a cryptic community of interacting parasites. By combining multiscale field data with manipulative experiments, we evaluated patterns of parasite coinfection in amphibian hosts and their underlying mechanisms. Surveys of 86 wetlands and 1273 hosts revealed positive correlations b...

journal_title：Ecology

authors： Johnson PT,Buller ID

更新日期：2011-03-01 00:00:00

abstract：:Ecological communities are dynamic entities subjected to extinction/colonization events. Because species are connected through complex interaction networks, the arrival of a new species is likely to affect various species across the community, as observed in plant biological invasions. However, plant invasions usually...

journal_title：Ecology

authors： Hernández-Castellano C,Rodrigo A,Gómez JM,Stefanescu C,Calleja JA,Reverté S,Bosch J

更新日期：2020-07-01 00:00:00

abstract：:Disease dynamics during pathogen invasion and establishment determine the impacts of disease on host populations and determine the mechanisms of host persistence. Temporal progression of prevalence and infection intensity illustrate whether tolerance, resistance, reduced transmission, or demographic compensation allow...

journal_title：Ecology

authors： Frick WF,Cheng TL,Langwig KE,Hoyt JR,Janicki AF,Parise KL,Foster JT,Kilpatrick AM

更新日期：2017-03-01 00:00:00

abstract：:Soils host diverse communities of interacting microbes and the nature of interspecific interactions is increasingly recognized to affect ecosystem-level processes. Antagonistic interactions between bacteria and fungi are of particular relevance for soil functioning. A number of soil bacteria produce secondary metaboli...

journal_title：Ecology

authors： Jousset A,Becker J,Chatterjee S,Karlovsky P,Scheu S,Eisenhauer N

更新日期：2014-05-01 00:00:00

abstract：:The consequences of declining biodiversity remain controversial, in part because many studies focus on a single metric of ecosystem functioning and fail to consider diversity's integrated effects on multiple ecosystem functions. We used tide pool microcosms as a model system to show that different conclusions about th...

journal_title：Ecology

authors： Bracken ME,Stachowicz JJ

更新日期：2006-09-01 00:00:00

abstract：:The ecological drivers of soil biodiversity in the Southern Hemisphere remain underexplored. Here, in a continental survey comprising 647 sites, across 58 degrees of latitude between tropical Australia and Antarctica, we evaluated the major ecological patterns in soil biodiversity and relative abundance of ecological ...

journal_title：Ecology

authors： Delgado-Baquerizo M,Reith F,Dennis PG,Hamonts K,Powell JR,Young A,Singh BK,Bissett A

更新日期：2018-03-01 00:00:00

abstract：:Wind disturbance profoundly shapes temperate forests but few studies have evaluated patterns and mechanisms of long-term forest dynamics following major windthrows. In 1990, we initiated a large hurricane simulation experiment in a 0.8-ha manipulation (pulldown) and 0.6-ha control area of a maturing Quercus rubra--Ace...

journal_title：Ecology

authors： Plotkin AB,Foster D,Carlson J,Magill A

更新日期：2013-02-01 00:00:00

abstract：:The debate about the value of the allometric scaling exponent (b) relating metabolic rate to body mass (metabolic rate = a x mass(b)) is ongoing, with published evidence both for and against a 3/4-power scaling law continuing to accumulate. However, this debate often revolves around a dichotomous distinction between t...

journal_title：Ecology

authors： White CR,Cassey P,Blackburn TM

更新日期：2007-02-01 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：:Decades of ecological study have demonstrated the importance of top-down and bottom-up controls on food webs, yet few studies within this context have quantified the magnitude of energy and material fluxes at the whole-ecosystem scale. We examined top-down and bottom-up effects on food web fluxes using a field experim...

journal_title：Ecology

authors： Collins SM,Thomas SA,Heatherly T 2nd,MacNeill KL,Leduc AO,López-Sepulcre A,Lamphere BA,El-Sabaawi RW,Reznick DN,Pringle CM,Flecker AS

更新日期：2016-11-01 00:00:00

abstract：:Replicated field experiments were used to quantify and to describe the mechanism of competition between the introduced black rat Rattus rattus and the endemic Santiago rice rat Nesoryzomys swarthi on Santiago Island, Galápagos Islands, Ecuador. The removal of R. rattus significantly slowed the rate of seasonal populat...

journal_title：Ecology

authors： Harris DB,Macdonald DW

更新日期：2007-09-01 00:00:00