Are rivers just big streams? A pulse method to quantify nitrogen demand in a large river.

abstract：:Comparing the structure of presence/absence (i.e., binary) matrices with those of randomized counterparts is a common practice in ecology. However, differences in the randomization procedures (null models) can affect the results of the comparisons, leading matrix structural patterns to appear either "random" or not. S...

journal_title：Ecology

authors： Strona G,Ulrich W,Gotelli NJ

更新日期：2018-01-01 00:00:00

abstract：:The adaptive nature of sociality has long been a central question in ecology and evolution. However, the relative importance of social behavior for fitness, compared to morphology and environment, remains largely unknown. We assessed the importance of sociality for fitness (lamb production and survival) in a populatio...

journal_title：Ecology

authors： Vander Wal E,Festa-Bianchet M,Réale D,Coltman DW,Pelletier F

更新日期：2015-03-01 00:00:00

abstract：:Mires (bogs and fens) are nutrient-limited peatland ecosystems, the vegetation of which is especially sensitive to nitrogen deposition and climate change. The role of mires in the global carbon cycle, and the delivery of different ecosystem services can be considerably altered by changes in the vegetation, which has a...

journal_title：Ecology

authors： Hedwall PO,Brunet J,Rydin H

更新日期：2017-01-01 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：:Bigeye tuna are known for remarkable daytime vertical migrations between deep water, where food is abundant but the water is cold, and the surface, where water is warm but food is relatively scarce. Here we investigate if these dive patterns can be explained by dynamic optimal foraging theory, where the tuna maximizes...

journal_title：Ecology

authors： Thygesen UH,Sommer L,Evans K,Patterson TA

更新日期：2016-07-01 00:00:00

abstract：:Consumer-resource systems with linear arrays of substitutable resources form the conceptual basis of much of present-day competition theory. However, most analyses of the limiting similarity of competitors have only employed consumer-resource models as a justification for using the Lotka-Volterra competition equations...

journal_title：Ecology

authors： Abrams PA,Rueffler C

更新日期：2009-03-01 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：: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：: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：: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：:Abundance and population density are fundamental pieces of information for population ecology and species conservation, but they are difficult to estimate for rare and elusive species. Mark--resight models are popular for estimating population abundance because they are less invasive and expensive than traditional mar...

journal_title：Ecology

authors： Sollmann R,Gardner B,Parsons AW,Stocking JJ,McClintock BT,Simons TR,Pollock KH,O'Connell AF

更新日期：2013-03-01 00:00:00

abstract：:The study of how population genetic structure is shaped by attributes of the environment is a central scientific pursuit in ecology and conservation. But limited resources may prohibit landscape genetics studies for many threatened species, particularly given the pace of current environmental change. Understanding the...

journal_title：Ecology

authors： Mims MC,Phillipsen IC,Lytle DA,Kirk EE,Olden JD

更新日期：2015-05-01 00:00:00

abstract：:The competitive exclusion principle is fundamental to understanding coexistence. Well-established theories predict the conditions for coexistence in consumer-resource interactions. Given that species often compete for commodities offered by mutualists, competitive exclusion theory should also be critical to understand...

journal_title：Ecology

authors： Johnson CA,Bronstein JL

更新日期：2019-06-01 00:00:00

abstract：:The linear regression model, with its numerous extensions including multivariate ordination, is fundamental to quantitative research in many disciplines. However, spatial or temporal structure in the data may invalidate the regression assumption of independent residuals. Spatial structure at any spatial scale can be m...

journal_title：Ecology

authors： Wagner HH

更新日期：2013-11-01 00:00:00

abstract：:Nonrandom seed release is an important determinant of how far seeds disperse, but the mechanisms that promote wind-related seed release under varying atmospheric conditions are poorly understood. We explored the use of particle image velocimetry (PIV) to gain a better mechanistic understanding of seed release by visua...

journal_title：Ecology

authors： Marchetto KM,Williams MB,Jongejans E,Auhl R,Shea K

更新日期：2010-08-01 00:00:00

abstract：:Fundamental gaps remain in our knowledge of how positive species interactions, such as facilitation and mutualism, structure and maintain populations and communities. Foundation species create extensive biogenic habitats, but we know little of how their traits, such as density, age, and patch size, modify their abilit...

journal_title：Ecology

authors： Irving AD,Bertness MD

更新日期：2009-11-01 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：:Sex ratios are commonly skewed and variable in wild populations, but few studies track temporal trends in this demographic parameter. We examined variation in the operational sex ratio at two protected and declining breeding colonies of Magellanic Penguins (Spheniscus magellanicus) in Chubut, Argentina. Penguins from ...

journal_title：Ecology

authors： Gownaris NJ,García Borboroglu P,Boersma PD

更新日期：2020-03-01 00:00:00

abstract：:Despite important advances in the ecology of river food webs, the strength and nature of the connection between the meio- and macrofaunal components of the web are still debated. Some unresolved issues are the effects of the inclusion of meiofaunal links and their temporal variations on the overall river food web prop...

journal_title：Ecology

authors： Schmid-Araya JM,Schmid PE,Tod SP,Esteban GF

更新日期：2016-11-01 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：:The neutral theory of biodiversity has been criticized for its neglect of species differences. Yet it is much less heeded that S. P. Hubbell's definition of neutrality allows species to differ in their birth and death rates as long as they have an equal per capita fitness. Using the lottery model of competition we fin...

journal_title：Ecology

authors： Lin K,Zhang DY,He F

更新日期：2009-01-01 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：:Statistical thinking in wildlife biology and ecology has been profoundly influenced by the introduction of AIC (Akaike's information criterion) as a tool for model selection and as a basis for model averaging. In this paper, we advocate the Bayesian paradigm as a broader framework for multimodel inference, one in whic...

journal_title：Ecology

authors： Link WA,Barker RJ

更新日期：2006-10-01 00:00:00

abstract：:There has been a lengthy debate on whether the abundance of adult reef fishes depends on prerecruitment or postrecruitment processes; however, we still do not have the ability to predict the magnitude of local fish recruitment. Here we show that the success of the leopard grouper (Mycteroperca rosacea) recruitment in ...

journal_title：Ecology

authors： Aburto-Oropeza O,Sala LE,Paredes G,Mendoza A,Ballesteros E

更新日期：2007-09-01 00:00:00

abstract：:Studies of facilitation have primarily been limited to single mechanisms, species, or environments. We examined interacting mechanisms governing the facilitative effects of Pinus flexilis on two later successional understory species, Pseudotsuga menziesii and Ribes cereum, in different microhabitats and seasons at the...

journal_title：Ecology

authors： Baumeister D,Callaway RM

更新日期：2006-07-01 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：:Morphological traits provide the interface between species and their environment. For example, body size affects the fitness of individuals in various ways. Yet especially for ectotherms, the applicability of general rules of interspecific clines of body size and even more so of other morphological traits is still und...

journal_title：Ecology

authors： Tiede Y,Hemp C,Schmidt A,Nauss T,Farwig N,Brandl R

更新日期：2018-09-01 00:00:00

abstract：:Early environmental conditions can influence the pattern of growth and development. While poor conditions generally cause slower growth, normal adult size can still be reached if growth accelerates or is prolonged once conditions improve, but such catch-up growth may have deleterious effects later in life. Here we inv...

journal_title：Ecology

authors： Lee WS,Monaghan P,Metcalfe NB

更新日期：2012-04-01 00:00:00

abstract：:The Caspian Sea hosts unique native and endemic faunas. However, it is also a source and sink of invasive alien species (IAS), with some listed among the worst 100 invasive species by the IUCN. A common approach to study biodiversity and biogeographic patterns or to predict the invasive potential of species is the app...

journal_title：Ecology

authors： Lattuada M,Wilke T,Raes N

更新日期：2020-09-01 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