Demographic heterogeneity and the dynamics of open populations.

abstract：:Co-occurrence methods are increasingly utilized in ecology to infer networks of species interactions where detailed knowledge based on empirical studies is difficult to obtain. Their use is particularly common, but not restricted to, microbial networks constructed from metagenomic analyses. In this study, we test the ...

journal_title：Ecology

authors： Freilich MA,Wieters E,Broitman BR,Marquet PA,Navarrete SA

更新日期：2018-03-01 00:00:00

abstract：:Evolutionary theory suggests that divergent natural selection in heterogeneous environments can result in locally adapted plant genotypes. To understand local adaptation it is important to study the ecological factors responsible for divergent selection. At a continental scale, variation in climate can be important wh...

journal_title：Ecology

authors： Macel M,Lawson CS,Mortimer SR,Smilauerova M,Bischoff A,Crémieux L,Dolezal J,Edwards AR,Lanta V,Bezemer TM,Van der Putten WH,Igual JM,Rodriguez-Barrueco C,Müller-Schärer H,Steinger T

更新日期：2007-02-01 00:00:00

abstract：:Nitrogen and phosphorus frequently limit terrestrial plant production, but have a mixed record in regulating the abundance of terrestrial invertebrates. We contrasted four ways that Na could interact with an NP fertilizer to shape the plants and invertebrates of an inland prairie. We applied NP and Na to m2 plots in a...

journal_title：Ecology

authors： Kaspari M,Roeder KA,Benson B,Weiser MD,Sanders NJ

更新日期：2017-02-01 00:00:00

abstract：:Predation pressure can alter the morphology, physiology, life history, and behavior of prey; each of these in turn can change how surviving prey interact with parasites. These trait-mediated indirect effects may change in direction or intensity during growth or, in sexually dimorphic species, between the sexes. The Tr...

journal_title：Ecology

authors： Stephenson JF,van Oosterhout C,Mohammed RS,Cable J

更新日期：2015-02-01 00:00:00

abstract：:Introduced parasites threaten native host species that lack effective defenses. Such parasites increase the risk of extinction, particularly in small host populations like those on islands. If some host species are tolerant to introduced parasites, this could amplify the risk of the parasite to vulnerable host species...

journal_title：Ecology

authors： Knutie SA,Owen JP,McNew SM,Bartlow AW,Arriero E,Herman JM,DiBlasi E,Thompson M,Koop JA,Clayton DH

更新日期：2016-04-01 00:00:00

abstract：:The nearly universal positive relationship between the distribution and abundance of species has been explained by several hypotheses but hitherto no consensus has been reached. Here, we used monitoring data of 105 phytophagous true bug species (Heteroptera) from 150 grassland sites over six years to test how (1) rang...

journal_title：Ecology

authors： Friess N,Gossner MM,Weisser WW,Brandl R,Brändle M

更新日期：2017-10-01 00:00:00

abstract：:Knowledge of the mechanisms that shape biodiversity is essential to understand the ecological and evolutionary dynamics of interacting species. Recent studies posit that most of the organization of mutualistic networks is shaped by differences in species abundance among interacting species. In this study, we examined ...

journal_title：Ecology

authors： Dattilo W,Marquitti FM,Guimarães PR Jr,Izzo TJ

更新日期：2014-02-01 00:00:00

abstract：:Empirical tests of the resource dispersion hypothesis (RDH), a theory to explain group living based on resource heterogeneity, have been complicated by the fact that resource patch dispersion and richness have proved difficult to define and measure in natural systems. Here, we studied the ecology of African lions Pant...

journal_title：Ecology

authors： Valeix M,Loveridge AJ,MacDonald DW

更新日期：2012-11-01 00:00:00

abstract：:Density dependence in vital rates is key to population regulation. Rather than being constant, the strength of density dependence may vary throughout the year, but empirical evidence is limited. Based on 22 years of data of color-banded birds from a recovering population of Eurasian Spoonbills Platalea leucorodia leuc...

journal_title：Ecology

authors： Lok T,Overdijk O,Tinbergen JM,Piersma T

更新日期：2013-10-01 00:00:00

abstract：:Consumer-mediated nutrient supply is increasingly recognized as an important functional process in many ecosystems. Yet, experimentation at relevant spatial and temporal scales is needed to fully integrate this bottom-up pathway into ecosystem models. Artificial reefs provide a unique approach to explore the importanc...

journal_title：Ecology

authors： Allgeier JE,Yeager LA,Layman CA

更新日期：2013-02-01 00:00:00

abstract：:Recurrent, low-severity fire in ponderosa pine (Pinus ponderosa)/interior Douglas-fir (Pseudotsuga menziesii var. glauca) forests is thought to have directly influenced nitrogen (N) cycling and availability. However, no studies to date have investigated the influence of natural fire intervals on soil processes in undi...

journal_title：Ecology

authors： DeLuca TH,Sala A

更新日期：2006-10-01 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：:Coupled trophic-engineer interactions are potentially important for maintaining habitat function and ecosystem services. As ephemeral submerged aquatic vegetation (SAV), Ruppia maritima has a short well-defined growth-senescence cycle and should benefit from any ecological interaction that enhances its physical condit...

journal_title：Ecology

authors： McCall DD,Rakocinski CF

更新日期：2007-03-01 00:00:00

abstract：:Nutritional imbalances are of great interest in the ecological stoichiometry literature, in which researchers have focused almost exclusively on cases where nutrients are available in low amounts relative to energy (carbon), and animal growth is impaired due to insufficient nutrient intake. Little attention has been g...

journal_title：Ecology

authors： Boersma M,Elser JJ

更新日期：2006-05-01 00:00:00

abstract：:Heterogeneity is increasingly recognized as a foundational characteristic of ecological systems. Under global change, understanding temporal community heterogeneity is necessary for predicting the stability of ecosystem functions and services. Indeed, spatial heterogeneity is commonly used in alternative stable state ...

journal_title：Ecology

authors： Collins SL,Avolio ML,Gries C,Hallett LM,Koerner SE,La Pierre KJ,Rypel AL,Sokol ER,Fey SB,Flynn DFB,Jones SK,Ladwig LM,Ripplinger J,Jones MB

更新日期：2018-04-01 00:00:00

abstract：:The evolutionary pressures that drive long larval planktonic durations in some coastal marine organisms, while allowing direct development in others, have been vigorously debated. We introduce into the argument the asymmetric dispersal of larvae by coastal currents and find that the strength of the currents helps dete...

journal_title：Ecology

authors： Pringle JM,Byers JE,Pappalardo P,Wares JP,Marshall D

更新日期：2014-04-01 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：:Fragmentation of landscapes is a pervasive source of environmental change. Although understanding the effects of fragmentation has occupied ecologists for decades, there remain important gaps in our understanding of the way that fragmentation influences mobile organisms. In particular, there is little tested theory ex...

journal_title：Ecology

authors： Blackburn HB,Hobbs NT,Detling JK

更新日期：2011-01-01 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：:Soil fungi link above- and belowground carbon (C) fluxes through their interactions with plants and contribute to C and nutrient dynamics through the production, turnover, and activity of fungal hyphae. Despite their importance to ecosystem processes, estimates of hyphal production and turnover rates are relatively un...

journal_title：Ecology

authors： Cheeke TE,Phillips RP,Kuhn A,Rosling A,Fransson P

更新日期：2020-11-23 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：: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：: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：:Crop rotation schemes are believed to work by preventing specialist soil-borne pests from depressing the future yields of similar crops. In ecology, such negative plant-soil feedbacks may be viewed as a type of Janzen-Connell effect, which promotes species coexistence and diversity by preventing the same species from ...

journal_title：Ecology

authors： Petermann JS,Fergus AJ,Turnbull LA,Schmid B

更新日期：2008-09-01 00:00:00

abstract：:Hydraulic traits are important for woody plant functioning and distribution. Associations among hydraulic traits, other leaf and stem traits, and species' performance are relatively well understood for trees, but remain poorly studied for lianas. We evaluated the coordination among hydraulic efficiency (i.e., maximum ...

journal_title：Ecology

authors： van der Sande MT,Poorter L,Schnitzer SA,Engelbrecht BMJ,Markesteijn L

更新日期：2019-05-01 00:00:00

abstract：:Although the oceans cover 70% of the Earth's surface and the open ocean is by far the largest ecosystem on the planet, our knowledge regarding diversity patterns of pelagic fauna is very scarce. Here, we examine large-scale latitudinal and depth-related patterns of pelagic cephalopod richness in the Atlantic Ocean in ...

journal_title：Ecology

authors： Rosa R,Dierssen HM,Gonzalez L,Seibel BA

更新日期：2008-12-01 00:00:00

abstract：:Mechanisms of community assembly and ecosystem function are often analyzed using community-weighted mean trait values (CWMs). We present a novel conceptual framework to quantify the contribution of demographic processes (i.e., growth, recruitment, and mortality) to temporal changes in CWMs. We used this framework to a...

journal_title：Ecology

authors： Muscarella R,Lohbeck M,Martínez-Ramos M,Poorter L,Rodríguez-Velázquez JE,van Breugel M,Bongers F

更新日期：2017-11-01 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：:Microorganisms drive biogeochemical processes, but linking these processes to real changes in microbial communities under field conditions is not trivial. Here, we present a model-based approach to estimate independent contributions of microbial community shifts to ecosystem properties. The approach was tested empiric...

journal_title：Ecology

authors： Powell JR,Welsh A,Hallin S

更新日期：2015-07-01 00:00:00

abstract：:Predators can impact ecosystems through consumptive or risk effects on prey. Physiologically, risk effects can be mediated by energetic mechanisms or stress responses. The predation-stress hypothesis predicts that risk induces stress in prey, which can affect survival and reproduction. However, empirical support for t...

journal_title：Ecology

authors： Hammerschlag N,Meÿer M,Seakamela SM,Kirkman S,Fallows C,Creel S

更新日期：2017-12-01 00:00:00