Serengeti real estate: density vs. fitness-based indicators of lion habitat quality.

abstract：:Legumes capable of fixing atmospheric N2 are abundant and diverse in many tropical forests, but the factors determining ecological patterns in fixation are unresolved. A long-standing idea is that fixation depends on soil nutrients (N, P or Mo), but recent evidence shows that fixation may also differ among N2-fixing s...

journal_title：Ecology letters

authors： Wurzburger N,Hedin LO

更新日期：2016-01-01 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：: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：:Though many processes are involved in determining which species coexist and assemble into communities, competition is among the best studied. One hypothesis about competition's contribution to community assembly is that more closely related species are less likely to coexist. Though empirical evidence for this hypothe...

journal_title：Ecology letters

authors： Mayfield MM,Levine JM

更新日期：2010-09-01 00:00:00

abstract：:The evolutionary dynamics of pathogens are critically important for disease outcomes, prevalence and emergence. In this study we investigate ecological conditions that may promote the long-term maintenance of virulence polymorphisms in pathogen populations. Recent theory predicts that evolution towards increased virul...

journal_title：Ecology letters

authors： Barrett LG,Bell T,Dwyer G,Bergelson J

更新日期：2011-11-01 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：:Of the 25 elements required to build most organisms, sodium has a unique set of characteristics that ramify through terrestrial ecology. In plants, sodium is found in low concentrations and has little metabolic function; in plant consumers, particularly animals, sodium is essential to running costly Na-K ATPases. Here...

journal_title：Ecology letters

authors： Kaspari M

更新日期：2020-07-01 00:00:00

abstract：:We examined the response of vascular plant species richness to long-term habitat loss and fragmentation of Estonian calcareous grasslands (alvars). The current number of habitat specialist species in 35 alvars was not explained by their current areas and connectivities but it was explained by their areas and connectiv...

journal_title：Ecology letters

authors： Helm A,Hanski I,Pärtel M

更新日期：2006-01-01 00:00:00

abstract：:Body-size reduction is a ubiquitous response to global warming alongside changes in species phenology and distributions. However, ecological consequences of temperature-size (TS) responses for community persistence under environmental change remain largely unexplored. Here, we investigated the interactive effects of w...

journal_title：Ecology letters

authors： Sentis A,Binzer A,Boukal DS

更新日期：2017-07-01 00:00:00

abstract：:Plant diversity experiments generally find that increased diversity causes increased productivity; however, primary productivity is typically measured in the presence of a diverse food web, including pathogens, mutualists and herbivores. If food web impacts on productivity vary with plant diversity, as predicted by bo...

journal_title：Ecology letters

authors： Seabloom EW,Kinkel L,Borer ET,Hautier Y,Montgomery RA,Tilman D

更新日期：2017-04-01 00:00:00

abstract：:Refuge-mediated apparent competition was recently suggested as a mechanism that enables plant invasions. The refuge characteristics of introduced plants are predicted to enhance impacts of generalist herbivores on native competitors and thereby result in an increased abundance of the invader. However, this prediction ...

journal_title：Ecology letters

authors： Enge S,Nylund GM,Pavia H

更新日期：2013-04-01 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：: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：: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：:Shifts in species' phenology in response to climate change have wide-ranging consequences for ecological systems. However, significant variability in species' responses, together with limited data, frustrates efforts to forecast the consequences of ongoing phenological changes. Herein, we use a case study of three Nor...

journal_title：Ecology letters

authors： Diez JM,Ibáñez I,Miller-Rushing AJ,Mazer SJ,Crimmins TM,Crimmins MA,Bertelsen CD,Inouye DW

更新日期：2012-06-01 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：:Bacteria typically rely on secreted metabolites, potentially shareable at the community level, to scavenge resources from the environment. The evolution of diffusible, shareable metabolites is, however, difficult to explain because molecules can get lost, or be exploited by cheating mutants. A key question is whether ...

journal_title：Ecology letters

authors： Kümmerli R,Schiessl KT,Waldvogel T,McNeill K,Ackermann M

更新日期：2014-12-01 00:00:00

abstract：:Murtaugh (2009) recently illustrated that all subsets variable selection is very similar to stepwise regression. This, however, does not necessarily mean both methods are useful. On the contrary, the same problems with overfitting should apply. Ecologists should, if model building is indeed necessary, consider more re...

journal_title：Ecology letters

authors： Dahlgren JP

更新日期：2010-05-01 00:00:00

abstract：:Natural ecosystems are shaped along two fundamental axes, space and time, but how biodiversity is partitioned along both axes is not well understood. Here, we show that the relationship between temporal and spatial biodiversity patterns can vary predictably according to habitat characteristics. By quantifying seasonal...

journal_title：Ecology letters

authors： Van Allen BG,Rasmussen NL,Dibble CJ,Clay PA,Rudolf VHW

更新日期：2017-08-01 00:00:00

abstract：:There is increasing pressure from policymakers for ecologists to generate more detailed 'attribution' analyses aimed at quantitatively estimating relative contributions of different driving forces, including anthropogenic climate change (ACC), to observed biological changes. Here, we argue that this approach is not pr...

journal_title：Ecology letters

authors： Parmesan C,Burrows MT,Duarte CM,Poloczanska ES,Richardson AJ,Schoeman DS,Singer MC

更新日期：2013-05-01 00:00:00

abstract：:While collective decision-making is recognised as a significant contributor to fitness in social species, the opposite outcome is also logically possible. We show that collective movement decisions guided by individual bison sharing faulty information about habitat quality promoted the use of ecological traps. The fre...

journal_title：Ecology letters

authors： Sigaud M,Merkle JA,Cherry SG,Fryxell JM,Berdahl A,Fortin D

更新日期：2017-01-01 00:00:00

abstract：:Trait-based approaches to community structure are increasingly used in terrestrial ecology. We show that such an approach, augmented by a mechanistic analysis of trade-offs among functional traits, can be successfully used to explain community composition of marine phytoplankton along environmental gradients. Our anal...

journal_title：Ecology letters

authors： Litchman E,Klausmeier CA,Schofield OM,Falkowski PG

更新日期：2007-12-01 00:00:00

abstract：:Body condition metrics are widely used to infer animal health and to assess costs of parasite infection. Since parasites harm their hosts, ecologists might expect negative relationships between infection and condition in wildlife, but this assumption is challenged by studies showing positive or null condition-infectio...

journal_title：Ecology letters

authors： Sánchez CA,Becker DJ,Teitelbaum CS,Barriga P,Brown LM,Majewska AA,Hall RJ,Altizer S

更新日期：2018-12-01 00:00:00

abstract：:The genetic basis of organism response to stoichiometric mismatches between environmental availability and somatic demand is still poorly understood. This study reports a consistent genotype x environment interaction related to phosphorus : carbon availability to Daphnia. In multiple pairs of Daphnia pulicaria clones,...

journal_title：Ecology letters

authors： Jeyasingh PD,Weider LJ,Sterner RW

更新日期：2009-11-01 00:00:00

abstract：:Despite nearly 100 years of edge studies, there has been little effort to document how edge responses 'cascade' to impact multi-trophic food webs. We examined changes within two, four-tiered food webs located on opposite sides of a habitat edge. Based on a 'bottom-up' resource-based model, we predicted plant resources...

journal_title：Ecology letters

authors： Wimp GM,Murphy SM,Lewis D,Ries L

更新日期：2011-09-01 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：: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：:We reconcile the findings of Holmes et al. (Ecology Letters, 10, 2007, 1182) that 95% confidence intervals for quasi-extinction risk were narrow for many vertebrates of conservation concern, with previous theory predicting wide confidence intervals. We extend previous theory, concerning the precision of quasi-extincti...

journal_title：Ecology letters

authors： Ellner SP,Holmes EE

更新日期：2008-08-01 00:00:00

abstract：:Worldwide decomposition rates depend both on climate and the legacy of plant functional traits as litter quality. To quantify the degree to which functional differentiation among species affects their litter decomposition rates, we brought together leaf trait and litter mass loss data for 818 species from 66 decomposi...

journal_title：Ecology letters

authors： Cornwell WK,Cornelissen JH,Amatangelo K,Dorrepaal E,Eviner VT,Godoy O,Hobbie SE,Hoorens B,Kurokawa H,Pérez-Harguindeguy N,Quested HM,Santiago LS,Wardle DA,Wright IJ,Aerts R,Allison SD,van Bodegom P,Brovkin V,Chatain A

更新日期：2008-10-01 00:00:00

abstract：:The metacommunity concept has the potential to integrate local and regional dynamics within a general community ecology framework. To this end, the concept must move beyond the discrete archetypes that have largely defined it (e.g. neutral vs. species sorting) and better incorporate local scale species interactions an...

journal_title：Ecology letters

authors： Thompson PL,Guzman LM,De Meester L,Horváth Z,Ptacnik R,Vanschoenwinkel B,Viana DS,Chase JM

更新日期：2020-09-01 00:00:00