Do edge responses cascade up or down a multi-trophic food web?

abstract：:Colonisation is a fundamental ecological and evolutionary process that drives the distribution and abundance of organisms. The initial ability of colonists to establish is determined largely by the number of founders and their genetic background. We explore the importance of these demographic and genetic properties fo...

journal_title：Ecology letters

authors： Szűcs M,Melbourne BA,Tuff T,Weiss-Lehman C,Hufbauer RA

更新日期：2017-04-01 00:00:00

abstract：:In animals, sex differences in immunity are proposed to shape variation in infection prevalence and intensity among individuals in a population, with females typically expected to exhibit superior immunity due to life-history trade-offs. We performed a systematic meta-analysis to investigate the magnitude and directio...

journal_title：Ecology letters

authors： Kelly CD,Stoehr AM,Nunn C,Smyth KN,Prokop ZM

更新日期：2018-12-01 00:00:00

abstract：:Anthropogenic degradation of the world's ecosystems is leading to a widespread and accelerating loss of biodiversity. However, not all species respond equally to existing threats, raising the question: what makes a species more vulnerable to extinction? We propose that higher intraspecific variability may reduce the r...

journal_title：Ecology letters

authors： González-Suárez M,Revilla E

更新日期：2013-02-01 00:00:00

abstract：:The ecological and evolutionary consequences of extreme events are poorly understood. Here, we tested predictions about species persistence and population genomic change in aquatic insects in 14 Colorado mountain streams across a hydrological disturbance gradient caused by a one in 500-year rainfall event. Taxa persis...

journal_title：Ecology letters

authors： Poff NL,Larson EI,Salerno PE,Morton SG,Kondratieff BC,Flecker AS,Zamudio KR,Funk WC

更新日期：2018-04-01 00:00:00

abstract：:Body size often strongly covaries with demography across species. Metabolism has long been invoked as the driver of these patterns, but tests of causal links between size, metabolism and demography within a species are exceedingly rare. We used 400 generations of artificial selection to evolve a 2427% size difference ...

journal_title：Ecology letters

authors： Malerba ME,Marshall DJ

更新日期：2019-09-01 00:00:00

abstract：:Ectomycorrhizal (EcM)-mediated nitrogen (N) acquisition is one main strategy used by terrestrial plants to facilitate growth. Measurements of natural abundance nitrogen isotope ratios (denoted as δ(15)N relative to a standard) increasingly serve as integrative proxies for mycorrhiza-mediated N acquisition due to biolo...

journal_title：Ecology letters

authors： Mayor J,Bahram M,Henkel T,Buegger F,Pritsch K,Tedersoo L

更新日期：2015-01-01 00:00:00

abstract：:Social environments have an important effect on a range of ecological processes, and form a crucial component of selection. However, little is known of the link between personality, social behaviour and population structure. We combine a well-understood personality trait with large-scale social networks in wild songbi...

journal_title：Ecology letters

authors： Aplin LM,Farine DR,Morand-Ferron J,Cole EF,Cockburn A,Sheldon BC

更新日期：2013-11-01 00:00:00

abstract：:Numerous bamboo species collectively flower and seed at dramatically extended, regular intervals - some as long as 120 years. These collective seed releases, termed 'masts', are thought to be a strategy to overwhelm seed predators or to maximise pollination rates. But why are the intervals so long, and how did they ev...

journal_title：Ecology letters

authors： Veller C,Nowak MA,Davis CC

更新日期：2015-07-01 00:00:00

abstract：:Habitat selection, including oviposition site choice, is an important driver of community assembly in freshwater systems. Factors determining patch quality are assessed by many colonising organisms and affect colonisation rates, spatial distribution and community structure. For many species, the presence/absence of pr...

journal_title：Ecology letters

authors： Resetarits WJ Jr,Silberbush A

更新日期：2016-02-01 00:00:00

abstract：:Dispersal is a key parameter of adaptation, invasion and persistence. Yet standard population genetics inference methods hardly distinguish it from drift and many species cannot be studied by direct mark-recapture methods. Here, we introduce a method using rates of change in cline shapes for neutral markers to estimat...

journal_title：Ecology letters

authors： Rieux A,Lenormand T,Carlier J,de Lapeyre de Bellaire L,Ravigné V

更新日期：2013-06-01 00:00:00

abstract：:The degree to which rising atmospheric CO(2) will be offset by carbon (C) sequestration in forests depends in part on the capacity of trees and soil microbes to make physiological adjustments that can alleviate resource limitation. Here, we show for the first time that mature trees exposed to CO(2) enrichment increase...

journal_title：Ecology letters

authors： Phillips RP,Finzi AC,Bernhardt ES

更新日期：2011-02-01 00:00:00

abstract：:Hette-Tronquart (2019, Ecol. Lett.) raises three concerns about our interpretation of stable isotope data in Sheppard et al. (2018, Ecol. Lett., 21, 665). We feel that these concerns are based on comparisons that are unreasonable or ignore the ecological context from which the data were collected. Stable isotope ratio...

journal_title：Ecology letters

authors： Marshall HH,Inger R,Jackson AL,McDonald RA,Thompson FJ,Cant MA

更新日期：2019-11-01 00:00:00

abstract：:We test for two critical phenomena in Amazonian ecosystems: self-organized criticality (SOC) and critical transitions. SOC is often presented in the complex systems literature as a general explanation for scale invariance in nature. In particular, this mechanism is claimed to underlie the macroscopic structure and dyn...

journal_title：Ecology letters

authors： Pueyo S,de Alencastro Graça PM,Barbosa RI,Cots R,Cardona E,Fearnside PM

更新日期：2010-07-01 00:00:00

abstract：:Global spread of non-native species profoundly changed the world biodiversity patterns, but how it translates into functional changes remains unanswered at the world scale. We here show that while in two centuries the number of fish species per river increased on average by 15% in 1569 basins worldwide, the diversity ...

journal_title：Ecology letters

authors： Toussaint A,Charpin N,Beauchard O,Grenouillet G,Oberdorff T,Tedesco PA,Brosse S,Villéger S

更新日期：2018-11-01 00:00:00

abstract：:The longstanding biotic interactions hypothesis predicts that herbivore pressure declines with latitude, but the evidence is mixed. To address gaps in previous studies, we measured herbivory and defence in the same system, quantified defence with bioassays, and considered effects of leaf age. We quantified herbivory a...

journal_title：Ecology letters

authors： Baskett CA,Schemske DW

更新日期：2018-04-01 00:00:00

abstract：:Intrinsic processes are assumed to underlie life history expression and trade-offs, but extrinsic inputs are theorised to shift trait expression and mask trade-offs within species. Here, we explore application of this theory across species. We do this based on parentally induced embryo temperature as an extrinsic inpu...

journal_title：Ecology letters

authors： Martin TE,Ton R,Niklison A

更新日期：2013-06-01 00:00:00

abstract：:Plant biodiversity can enhance primary production in terrestrial ecosystems, but biodiversity effects are largely unstudied in the ocean. We conducted a series of field and mesocosm experiments to measure the relative effects of macroalgal identity and richness on primary productivity (net photosynthetic rate) and bio...

journal_title：Ecology letters

authors： Bruno JF,Boyer KE,Duffy JE,Lee SC,Kertesz JS

更新日期：2005-11-01 00:00:00

abstract：:Globalisation persistently fuels the establishment of non-native species outside their natural ranges. While alien plants have been intensively studied, little is known about alien flower visitors, and especially, how they integrate into natural communities. Here, we focus on mutualistic networks from five Galápagos i...

journal_title：Ecology letters

authors： Trøjelsgaard K,Heleno R,Traveset A

更新日期：2019-08-01 00:00:00

abstract：:Most species are exposed to significant environmental gradients across their ranges, but vital rates (survival, growth, reproduction and recruitment) need not respond in the same direction to those gradients. Opposing vital rate trends across environments, a phenomenon that has been loosely called 'demographic compens...

journal_title：Ecology letters

authors： Villellas J,Doak DF,García MB,Morris WF

更新日期：2015-11-01 00:00:00

abstract：:Food chain theory is one of the cornerstones of ecology, providing many of its basic predictions, such as biomass pyramids, trophic cascades and predator-prey oscillations. Yet, ninety years into this theory, the conditions under which these patterns may occur and persist in nature remain subject to debate. Rather tha...

journal_title：Ecology letters

authors： Barbier M,Loreau M

更新日期：2019-02-01 00:00:00

abstract：:How does life history affects the short-term elasticities of population growth rate? We decompose short-term elasticity as a sum of (i) the effect of the perturbation in rates on the unperturbed population structure and (ii) the effect of the original vital rates on the difference in structure between the original and...

journal_title：Ecology letters

authors： Haridas CV,Tuljapurkar S

更新日期：2007-12-01 00:00:00

abstract：:The ability of natural selection to drive local adaptation has been appreciated ever since Darwin. Whether human impacts can impede the adaptive process has received less attention. We tested this hypothesis by quantifying natural selection and harvest selection acting on a freshwater fish (pike) over four decades. Ac...

journal_title：Ecology letters

authors： Carlson SM,Edeline E,Asbjørn Vøllestad L,Haugen TO,Winfield IJ,Fletcher JM,Ben James J,Stenseth NC

更新日期：2007-06-01 00:00:00

abstract：:Females of many species obtain benefits by mating polyandrously, and often prefer novel males over previous mates. However, how do females recognise previous mates, particularly in the face of cognitive constraints? Female crickets appear to have evolved a simple but effective solution: females imbue males with their ...

journal_title：Ecology letters

authors： Weddle CB,Steiger S,Hamaker CG,Ower GD,Mitchell C,Sakaluk SK,Hunt J

更新日期：2013-03-01 00:00:00

abstract：:There are a variety of proposed evolutionary and ecological explanations for why some species have more extensive geographical ranges than others. One of the most common explanations is variation in species' dispersal ability. However, the purported relationship between dispersal distance and range size has been subje...

journal_title：Ecology letters

authors： Lester SE,Ruttenberg BI,Gaines SD,Kinlan BP

更新日期：2007-08-01 00:00:00

abstract：:Both plant diversity and vertebrate herbivores can impact plant fitness and ecosystem functioning, however their interactions have not been explicitly tested. We manipulated plant genotypic diversity of the native plant Oenothera biennis and monitored its survivorship and lifetime fitness with and without one of its m...

journal_title：Ecology letters

authors： Parker JD,Salminen JP,Agrawal AA

更新日期：2010-05-01 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：:Asexual taxa often have larger ranges than their sexual progenitors, particularly in areas affected by Pleistocene glaciations. The reasons given for this 'geographical parthenogenesis' are contentious, with expansion of the ecological niche or colonisation advantages of uniparental reproduction assumed most important...

journal_title：Ecology letters

authors： Kirchheimer B,Wessely J,Gattringer A,Hülber K,Moser D,Schinkel CCF,Appelhans M,Klatt S,Caccianiga M,Dellinger A,Guisan A,Kuttner M,Lenoir J,Maiorano L,Nieto-Lugilde D,Plutzar C,Svenning JC,Willner W,Hörandl E,Dullin

更新日期：2018-03-01 00:00:00

abstract：:Understanding species coexistence has long been a major goal of ecology. Coexistence theory for two competing species posits that intraspecific density dependence should be stronger than interspecific density dependence. Great tits and blue tits are two bird species that compete for food resources and nesting cavities...

journal_title：Ecology letters

authors： Gamelon M,Vriend SJG,Engen S,Adriaensen F,Dhondt AA,Evans SR,Matthysen E,Sheldon BC,Saether BE

更新日期：2019-05-01 00:00:00

abstract：:Assessments from field plots steer much of our current understanding of global change impacts on forest ecosystem structure and function. Recent widespread observations of net carbon accumulation in field plots have suggested that terrestrial ecosystems may be a carbon sink, possibly resulting from climate change and/...

journal_title：Ecology letters

authors： Fisher JI,Hurtt GC,Thomas RQ,Chambers JQ

更新日期：2008-06-01 00:00:00

abstract：:Apex predators can limit the abundance and behaviour of mesopredators, thereby reducing predation on smaller species. We know less about whether native apex predators are effective in suppressing invasive mesopredators, a major global driver of vertebrate extinctions. We use the severe disease-induced decline of an ap...

journal_title：Ecology letters

authors： Cunningham CX,Johnson CN,Jones ME

更新日期：2020-04-01 00:00:00