Intragroup competition predicts individual foraging specialisation in a group-living mammal.

abstract：:'C4 photosynthesis' refers to a suite of traits that increase photosynthesis in high light and high temperature environments. Most C4 plants are grasses, which dominate tropical and subtropical grasslands and savannas but are conspicuously absent from cold growing season climates. Physiological attributes of C4 photos...

journal_title：Ecology letters

authors： Edwards EJ,Still CJ

更新日期：2008-03-01 00:00:00

abstract：:Increasing interest in the complexity, variation and drivers of movement-related behaviours promise new insight into fundamental components of ecology. Resolving the multidimensionality of spatially explicit behaviour remains a challenge for investigating tactics and their relation to niche construction, but high-reso...

journal_title：Ecology letters

authors： Bastille-Rousseau G,Wittemyer G

更新日期：2019-09-01 00:00:00

abstract：:Given the potential for rapid and microgeographical adaptation, ecologists increasingly are exploring evolutionary explanations for community patterns. Biotic selection can generate local adaptations that alter species interactions. Although some gene flow might be necessary to fuel local adaptation, higher gene flow ...

journal_title：Ecology letters

authors： Urban MC

更新日期：2011-07-01 00:00:00

abstract：:Ecosystems are differentially open to subsidies of energy, material and organisms. This fundamental ecosystem attribute has long been recognized but the influence of this property on community regulation has not been investigated. We propose that this environmental attribute may explain variation in the strength of tr...

journal_title：Ecology letters

authors： Leroux SJ,Loreau M

更新日期：2008-11-01 00:00:00

abstract：:Understanding life history and demographic variation among species within communities is a central ecological goal. Mortality schedules are especially important in ecosystems where disturbance plays a major role in structuring communities, such as coral reefs. Here, we test whether a trait-based, mechanistic model of ...

journal_title：Ecology letters

authors： Madin JS,Baird AH,Dornelas M,Connolly SR

更新日期：2014-08-01 00:00:00

abstract：:Individual species are distributed inhomogeneously over space and time, yet, within large communities of species, aggregated patterns of biodiversity seem to display nearly universal behaviour. Neutral models assume that an individual's demographic prospects are independent of its species identity. They have successfu...

journal_title：Ecology letters

authors： O'Dwyer JP,Chisholm R

更新日期：2014-08-01 00:00:00

abstract：:Despite the importance of divergent selection to the speed of evolution, it remains poorly understood if divergent selection is more prevalent in the tropics (where species richness is highest), or at high latitudes (where paleoclimate change has been most intense). We tested whether the rate of climatic-niche evoluti...

journal_title：Ecology letters

authors： Lawson AM,Weir JT

更新日期：2014-11-01 00:00:00

abstract：:Although interspecific competition has long been recognised as a major driver of trait divergence and adaptive evolution, relatively little effort has focused on how it influences the evolution of intraspecific cooperation. Here we identify the mechanism by which the perceived pressure of interspecific competition inf...

journal_title：Ecology letters

authors： Chen BF,Liu M,Rubenstein DR,Sun SJ,Liu JN,Lin YH,Shen SF

更新日期：2020-03-01 00:00:00

abstract：:While biological invasions have the potential for large negative impacts on local communities and ecological interactions, increasing evidence suggests that species once considered major problems can decline over time. Declines often appear driven by natural enemies, diseases or evolutionary adaptations that selective...

journal_title：Ecology letters

authors： Blossey B,Nuzzo V,Dávalos A,Mayer M,Dunbar R,Landis DA,Evans JA,Minter B

更新日期：2021-02-01 00:00:00

abstract：:Males and females frequently have different fitness optima for shared traits, and as a result, genotypes that are high fitness as males are low fitness as females, and vice versa. When this occurs, biasing of offspring sex-ratio to reduce the production of the lower-fitness sex would be advantageous, so that for examp...

journal_title：Ecology letters

authors： Katsuki M,Harano T,Miyatake T,Okada K,Hosken DJ

更新日期：2012-03-01 00:00:00

abstract：:Increasing temperatures associated with climate change are predicted to cause reductions in body size, a key determinant of animal physiology and ecology. Using a four-decade specimen series of 70 716 individuals of 52 North American migratory bird species, we demonstrate that increasing annual summer temperature over...

journal_title：Ecology letters

authors： Weeks BC,Willard DE,Zimova M,Ellis AA,Witynski ML,Hennen M,Winger BM

更新日期：2020-02-01 00:00:00

abstract：:While the anthropogenic impact on ecosystems today is evident, it remains unclear if the detrimental effect of hominins on co-occurring biodiversity is a recent phenomenon or has also been the pattern for earlier hominin species. We test this using the East African carnivore fossil record. We analyse the diversity of ...

journal_title：Ecology letters

authors： Faurby S,Silvestro D,Werdelin L,Antonelli A

更新日期：2020-03-01 00:00:00

abstract：:How strongly natural populations are regulated has a long history of debate in ecology. Here, we discuss concepts of population regulation appropriate for stochastic population dynamics. We then analyse two large collections of data sets with autoregressive-moving average (ARMA) models, using model selection technique...

journal_title：Ecology letters

authors： Ziebarth NL,Abbott KC,Ives AR

更新日期：2010-01-01 00:00:00

abstract：:Predicting long-term trends in forest growth requires accurate characterisation of how the relationship between forest productivity and climatic stress varies across climatic regimes. Using a network of over two million tree-ring observations spanning North America and a space-for-time substitution methodology, we for...

journal_title：Ecology letters

authors： Charney ND,Babst F,Poulter B,Record S,Trouet VM,Frank D,Enquist BJ,Evans ME

更新日期：2016-09-01 00:00:00

abstract：:Although some organisms have moved to higher elevations and latitudes in response to recent climate change, there is little consensus regarding the capacity of different species to track rapid climate change via range shifts. Understanding species' abilities to shift ranges has important implications for assessing ext...

journal_title：Ecology letters

authors： Angert AL,Crozier LG,Rissler LJ,Gilman SE,Tewksbury JJ,Chunco AJ

更新日期：2011-07-01 00:00:00

abstract：:Experimental studies assessing climatic effects on ecological communities have typically applied static warming treatments. Although these studies have been informative, they have usually failed to incorporate either current or predicted future, patterns of variability. Future climates are likely to include extreme ev...

journal_title：Ecology letters

authors： Thompson RM,Beardall J,Beringer J,Grace M,Sardina P

更新日期：2013-06-01 00:00:00

abstract：:The growth rate hypothesis posits that the rate of protein synthesis is constrained by phosphorus (P) supply. P scarcity invokes differential expression of genes involved in processing of most if not all elements encompassing an individual (the ionome). Whether such ionome-wide adjustments to P supply impact growth an...

journal_title：Ecology letters

authors： Jeyasingh PD,Goos JM,Lind PR,Roy Chowdhury P,Sherman RE

更新日期：2020-07-01 00:00:00

abstract：:Ecosystems are often exposed to mixtures of chemical contaminants, but the scientific community lacks a theoretical framework to predict the effects of mixtures on biodiversity and ecosystem properties. We conducted a freshwater mesocosm experiment to examine the effects of pairwise agrochemical mixtures [fertiliser, ...

journal_title：Ecology letters

authors： Halstead NT,McMahon TA,Johnson SA,Raffel TR,Romansic JM,Crumrine PW,Rohr JR

更新日期：2014-08-01 00:00:00

abstract：:Specialised natural enemies maintain forest diversity by reducing tree survival in a density- or distance-dependent manner. Fungal pathogens, insects and mammals are the enemy types most commonly hypothesised to cause this phenomenon. Still, their relative importance remains largely unknown, as robust manipulative exp...

journal_title：Ecology letters

authors： Fricke EC,Tewksbury JJ,Rogers HS

更新日期：2014-05-01 00:00:00

abstract：:Understanding and predicting range expansion are key objectives in many basic and applied contexts. Among dioecious organisms, there is strong evidence for sex differences in dispersal, which could alter the sex ratio at the expansion's leading edge. However, demographic stochasticity could also affect leading-edge se...

journal_title：Ecology letters

authors： Miller TE,Inouye BD

更新日期：2013-03-01 00:00:00

abstract：:The silver spoon effect in the context of habitat selection occurs when dispersers in good condition are more likely to settle in high-quality habitats than dispersers in poor condition. Positive relationships between disperser condition and the quality of post-dispersal habitats are predicted by at least two non-excl...

journal_title：Ecology letters

authors： Stamps JA

更新日期：2006-11-01 00:00:00

abstract：:Dams are recognised to impact aquatic biodiversity, but the effects and conclusions diverge across studies and locations. By using a meta-analytical approach, we quantified the effects of impoundment on fish communities distributed across three large biomes. The impacts of dams on richness and diversity differed acros...

journal_title：Ecology letters

authors： Turgeon K,Turpin C,Gregory-Eaves I

更新日期：2019-09-01 00:00:00

abstract：:Correlative species distribution models are based on the observed relationship between species' occurrence and macroclimate or other environmental variables. In climates predicted less favourable populations are expected to decline, and in favourable climates they are expected to persist. However, little comparative e...

journal_title：Ecology letters

authors： Csergő AM,Salguero-Gómez R,Broennimann O,Coutts SR,Guisan A,Angert AL,Welk E,Stott I,Enquist BJ,McGill B,Svenning JC,Violle C,Buckley YM

更新日期：2017-08-01 00:00:00

abstract：:Because biodiversity is multidimensional and scale-dependent, it is challenging to estimate its change. However, it is unclear (1) how much scale-dependence matters for empirical studies, and (2) if it does matter, how exactly we should quantify biodiversity change. To address the first question, we analysed studies w...

journal_title：Ecology letters

authors： Chase JM,McGill BJ,McGlinn DJ,May F,Blowes SA,Xiao X,Knight TM,Purschke O,Gotelli NJ

更新日期：2018-11-01 00:00:00

abstract：:A latitudinal gradient in biodiversity has existed since before the time of the dinosaurs, yet how and why this gradient arose remains unresolved. Here we review two major hypotheses for the origin of the latitudinal diversity gradient. The time and area hypothesis holds that tropical climates are older and historical...

journal_title：Ecology letters

authors： Mittelbach GG,Schemske DW,Cornell HV,Allen AP,Brown JM,Bush MB,Harrison SP,Hurlbert AH,Knowlton N,Lessios HA,McCain CM,McCune AR,McDade LA,McPeek MA,Near TJ,Price TD,Ricklefs RE,Roy K,Sax DF,Schluter D,Sobel JM,

更新日期：2007-04-01 00:00:00

abstract：:The terminal allocation and senescence hypotheses make opposite predictions about how age-specific reproductive effort should vary during old age. There is empirical support for both hypotheses, although reports on senescence are more numerous. Individual heterogeneity and selective mortality, however, decrease our ab...

journal_title：Ecology letters

authors： Martin JG,Festa-Bianchet M

更新日期：2011-06-01 00:00:00

abstract：:Seedling limitation could structure communities, but often is evaluated with sampling units that are orders of magnitude smaller than mature plants. We censused seedlings for 5.5 years in five 1 x 200-m transects in a wet Neotropical forest. For 106 common species (> or = 10 seedlings in a transect), we calculated pre...

journal_title：Ecology letters

authors： Kobe RK,Vriesendorp CF

更新日期：2009-03-01 00:00:00

abstract：:Some birds undergo seasonal colour change by moulting twice each year, typically alternating between a cryptic, non-breeding plumage and a conspicuous, breeding plumage ('seasonal plumage colours'). We test for potential drivers of the evolution of seasonal plumage colours in all passerines (N = 5901 species, c. 60% o...

journal_title：Ecology letters

authors： McQueen A,Kempenaers B,Dale J,Valcu M,Emery ZT,Dey CJ,Peters A,Delhey K

更新日期：2019-11-01 00:00:00

abstract：:Local adaptation, adaptive population divergence and speciation are often expected to result from populations evolving in response to spatial variation in selection. Yet, we lack a comprehensive understanding of the major features that characterise the spatial patterns of selection, namely the extent of variation amon...

journal_title：Ecology letters

authors： Siepielski AM,Gotanda KM,Morrissey MB,Diamond SE,DiBattista JD,Carlson SM

更新日期：2013-11-01 00:00:00

abstract：:Intra- and interspecific plant-plant interactions are fundamental to patterns of community assembly and to the mixture effects observed in biodiversity studies. Although much research has been conducted at the species level, very little is understood about how genetic variation within and among interacting species may...

journal_title：Ecology letters

authors： Genung MA,Bailey JK,Schweitzer JA

更新日期：2012-01-01 00:00:00