Structure and mechanism of diet specialisation: testing models of individual variation in resource use with sea otters.

abstract：:Demographic senescence is increasingly recognised as an important force shaping the dynamics of wild vertebrate populations. However, our understanding of the processes that underpin these declines in survival and fertility in old age remains limited. Evidence for age-related changes in foraging behaviour and habitat ...

journal_title：Ecology letters

authors： Froy H,Börger L,Regan CE,Morris A,Morris S,Pilkington JG,Crawley MJ,Clutton-Brock TH,Pemberton JM,Nussey DH

更新日期：2018-07-01 00:00:00

abstract：:The relative importance of contemporary and historical processes is central for understanding biodiversity patterns. While several studies show that past conditions can partly explain the current biodiversity patterns, the role of history remains elusive. We reconstructed palaeo-drainage basins under lower sea level c...

journal_title：Ecology letters

authors： Dias MS,Oberdorff T,Hugueny B,Leprieur F,Jézéquel C,Cornu JF,Brosse S,Grenouillet G,Tedesco PA

更新日期：2014-09-01 00:00:00

abstract：:In the short-term heterotrophic soil respiration is strongly and positively related to temperature. In the long-term, its response to temperature is uncertain. One reason for this is because in field experiments increases in respiration due to warming are relatively short-lived. The explanations proposed for this ephe...

journal_title：Ecology letters

authors： Bradford MA,Davies CA,Frey SD,Maddox TR,Melillo JM,Mohan JE,Reynolds JF,Treseder KK,Wallenstein MD

更新日期：2008-12-01 00:00:00

abstract：:Root systems are important for global models of below-ground carbon and nutrient cycling. Notoriously difficult sampling methods and the fractal distribution of root diameters in the soil make data being used in these models especially susceptible to error resulting from under-sampling. We applied the concept of speci...

journal_title：Ecology letters

authors： Taylor BN,Beidler KV,Cooper ER,Strand AE,Pritchard SG

更新日期：2013-07-01 00:00:00

abstract：:Changes in phenotypic variability in natural populations have received little attention in comparison with changes in mean trait values. This is unfortunate because trait diversity may influence adaptive evolutionary change and population stability. We combine two unique data sets to illuminate complex trait changes i...

journal_title：Ecology letters

authors： Olsen EM,Carlson SM,Gjøsaeter J,Stenseth NC

更新日期：2009-07-01 00:00:00

abstract：:We used the largest DNA-based phylogeny of flowering plants to date to evaluate the importance of energy vs. past climate change in predicting global patterns in diversification. Relative diversification rates increased towards the equator, suggesting that differences in per-lineage net diversification may be an impor...

journal_title：Ecology letters

authors： Jansson R,Davies TJ

更新日期：2008-02-01 00:00:00

abstract：:Species richness varies enormously across geographical gradients, a well-known phenomenon for which there are many hypothesized explanations. One recent hypothesis uses null models to demonstrate that random re-distribution of species' ranges within a given domain leads to a 'mid-domain effect' (MDE): increasing speci...

journal_title：Ecology letters

authors： Kerr JT,Perring M,Currie DJ

更新日期：2006-02-01 00:00:00

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：:Latitudinal gradients in biotic interactions have been suggested as causes of global patterns of biodiversity and phenotypic variation. Plant biologists have long speculated that outcrossing mating systems are more common at low than high latitudes owing to a greater predictability of plant-pollinator interactions in ...

journal_title：Ecology letters

authors： Moeller DA,Briscoe Runquist RD,Moe AM,Geber MA,Goodwillie C,Cheptou PO,Eckert CG,Elle E,Johnston MO,Kalisz S,Ree RH,Sargent RD,Vallejo-Marin M,Winn AA

更新日期：2017-03-01 00:00:00

abstract：:A component of metabolic scaling theory has worked towards understanding the influence of metabolism over the generation and maintenance of biodiversity. Specific models within this 'metabolic theory of biodiversity' (MTB) have addressed temperature gradients in speciation rate and species richness, but the scope of M...

journal_title：Ecology letters

authors： Stegen JC,Enquist BJ,Ferriere R

更新日期：2009-10-01 00:00:00

abstract：:Correlative analyses predict that anthropogenic climate warming will cause widespread extinction but the nature and generality of the underlying mechanisms is unclear. Warming-induced activity restriction has been proposed as a general explanatory mechanism for recent population extinctions in lizards, and has been us...

journal_title：Ecology letters

authors： R Kearney M

更新日期：2013-12-01 00:00:00

abstract：:In many animals acquiring limited reproductive opportunities involves competition for resources, mates and opposite-sex gametes. There is ambiguity in which competitive steps are included in measures of sexual selection: individuals who fail to obtain resources necessary for reproduction are often excluded. We illustr...

journal_title：Ecology letters

authors： Klug H,Lindström K,Kokko H

更新日期：2010-09-01 00:00:00

abstract：:Plant growth can be limited by resource acquisition and defence against consumers, leading to contrasting trade-off possibilities. The competition-defence hypothesis posits a trade-off between competitive ability and defence against enemies (e.g. herbivores and pathogens). The growth-defence hypothesis suggests that s...

journal_title：Ecology letters

authors： Lind EM,Borer E,Seabloom E,Adler P,Bakker JD,Blumenthal DM,Crawley M,Davies K,Firn J,Gruner DS,Harpole WS,Hautier Y,Hillebrand H,Knops J,Melbourne B,Mortensen B,Risch AC,Schuetz M,Stevens C,Wragg PD

更新日期：2013-04-01 00:00:00

abstract：:The impacts of climate change on forest net biomass change are poorly understood but critical for predicting forest's contribution to the global carbon cycle. Recent studies show climate change-associated net biomass declines in mature forest plots. The representativeness of these plots for regional forests, however, ...

journal_title：Ecology letters

authors： Chen HY,Luo Y,Reich PB,Searle EB,Biswas SR

更新日期：2016-09-01 00:00:00

abstract：:Understory fires represent an accelerating threat to Amazonian tropical forests and can, during drought, affect larger areas than deforestation itself. These fires kill trees at rates varying from < 10 to c. 90% depending on fire intensity, forest disturbance history and tree functional traits. Here, we examine variat...

journal_title：Ecology letters

authors： Staver AC,Brando PM,Barlow J,Morton DC,Paine CET,Malhi Y,Araujo Murakami A,Del Aguila Pasquel J

更新日期：2020-01-01 00:00:00

abstract：:Larger testes produce more sperm and therefore improve reproductive success in the face of sperm competition. Adaptation to social mating systems with relatively high and low sperm competition are therefore likely to have driven changes in relative testes size in opposing directions. Here, we combine the largest verte...

journal_title：Ecology letters

authors： Baker J,Humphries S,Ferguson-Gow H,Meade A,Venditti C

更新日期：2020-02-01 00:00:00

abstract：:The future of tropical forest biodiversity depends more than ever on the effective management of human-modified landscapes, presenting a daunting challenge to conservation practitioners and land use managers. We provide a critical synthesis of the scientific insights that guide our understanding of patterns and proces...

journal_title：Ecology letters

authors： Gardner TA,Barlow J,Chazdon R,Ewers RM,Harvey CA,Peres CA,Sodhi NS

更新日期：2009-06-01 00:00:00

abstract：:There have been numerous investigations of parasite local adaptation, a phenomenon important from the perspectives of both basic and applied evolutionary ecology. Recent work has demonstrated that temperature has striking effects on parasite performance by mediating trade-offs in parasite life history and through geno...

journal_title：Ecology letters

authors： Laine AL

更新日期：2008-04-01 00:00:00

abstract：:Niche construction can generate ecological and evolutionary feedbacks that have been underinvestigated so far. We present an eco-evolutionary model that incorporates the process of niche construction to reveal its effects on the ecology and evolution of the niche-constructing agent. We consider a simple plant-soil nut...

journal_title：Ecology letters

authors： Kylafis G,Loreau M

更新日期：2008-10-01 00:00:00

abstract：:Determining statistical patterns irrespective of interacting agents (i.e. macroecology) is useful to explore the mechanisms driving population fluctuations and extinctions in natural food webs. Here, we tested four predictions of a neutral model on the distribution of community fluctuations (CF) and the distributions ...

journal_title：Ecology letters

authors： Segura AM,Calliari D,Lan BL,Fort H,Widdicombe CE,Harmer R,Arim M

更新日期：2017-04-01 00:00:00

abstract：:Despite the importance of consumers in structuring communities, and the widespread assumption that consumption is strongest at low latitudes, empirical tests for global scale patterns in the magnitude of consumer impacts are limited. In marine systems, the long tradition of experimentally excluding herbivores in their...

journal_title：Ecology letters

authors： Poore AG,Campbell AH,Coleman RA,Edgar GJ,Jormalainen V,Reynolds PL,Sotka EE,Stachowicz JJ,Taylor RB,Vanderklift MA,Duffy JE

更新日期：2012-08-01 00:00:00

abstract：:Alien plant species are known to have a wide range of impacts on recipient communities, from resident species' exclusions to coexistence with resident species. It remains unclear; however, if this variety of impacts is due to different invader strategies, features of recipient communities or both. To test this, we exa...

journal_title：Ecology letters

authors： Lai HR,Mayfield MM,Gay-des-Combes JM,Spiegelberger T,Dwyer JM

更新日期：2015-04-01 00:00:00

abstract：:Resource-consumer interactions are considered a major driving force of population and community dynamics. However, species also interact in many non-trophic and indirect ways and it is currently not known to what extent the dynamic coupling of species corresponds to the distribution of trophic links. Here, using a 10-...

journal_title：Ecology letters

authors： Kawatsu K,Ushio M,van Veen FJF,Kondoh M

更新日期：2021-01-13 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：:The canonical factors typically thought to determine herbivore community structure often explain only a small fraction of the variation in herbivore abundance and diversity. We tested how macronutrients and relatively understudied micronutrients interacted to influence the structure of insect herbivore (orthopteran) c...

journal_title：Ecology letters

authors： Prather CM,Laws AN,Cuellar JF,Reihart RW,Gawkins KM,Pennings SC

更新日期：2018-10-01 00:00:00

abstract：:Understanding the factors that determine rates of range expansion is not only crucial for developing risk assessment schemes and management strategies for invasive species, but also provides important insight into the ability of species to disperse in response to climate change. However, there is little knowledge on w...

journal_title：Ecology letters

authors： Liu X,Li X,Liu Z,Tingley R,Kraus F,Guo Z,Li Y

更新日期：2014-07-01 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：:To estimate species loss from habitat destruction, ecologists typically use species-area relationships, but this approach neglects the spatial pattern of habitat fragmentation. Here, we provide new, easily applied, analytical methods that place upper and lower bounds on immediate species loss at any spatial scale and ...

journal_title：Ecology letters

authors： Chisholm RA,Lim F,Yeoh YS,Seah WW,Condit R,Rosindell J

更新日期：2018-06-01 00:00:00

abstract：:The analysis of functional diversity (FD) has gained increasing importance due to its generality and utility in ecology. In particular, patterns in the spatial distribution and temporal change of FD are being used to predict locations and functional groups that are immediately vulnerable to global changes. A major imp...

journal_title：Ecology letters

authors： Kim SW,Blomberg SP,Pandolfi JM

更新日期：2018-08-01 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