Journal of Animal Ecology

Cover image for Vol. 83 Issue 3

Early View (Online Version of Record published before inclusion in an issue)

Edited By: Ken Wilson, Tim Coulson, Mike Boots and Ben Sheldon

Impact Factor: 4.841

ISI Journal Citation Reports © Ranking: 2012: 1/151 (Zoology); 20/136 (Ecology)

Online ISSN: 1365-2656

Associated Title(s): Functional Ecology, Journal of Applied Ecology, Journal of Ecology, Methods in Ecology and Evolution

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  1. Standard Papers

    1. Predictors of malaria infection in a wild bird population: landscape-level analyses reveal climatic and anthropogenic factors

      Catalina Gonzalez-Quevedo, Richard G. Davies and David S. Richardson

      Article first published online: 24 MAR 2014 | DOI: 10.1111/1365-2656.12214

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      This paper explores the role of fine-scale environmental variation on the distribution of a wildlife disease. Interestingly, the authors find a key role for a climatic variable previously described as an important predictor of malaria, but also find an effect of anthropogenic variables.

    2. Life-history diversity and its importance to population stability and persistence of a migratory fish: steelhead in two large North American watersheds

      Jonathan W. Moore, Justin D. Yeakel, Dean Peard, Jeff Lough and Mark Beere

      Article first published online: 24 MAR 2014 | DOI: 10.1111/1365-2656.12212

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      The authors analyse life-history trajectories of an iconic migratory fish in large and relatively pristine watersheds, discovering an astonishing 36 different life histories. Via portfolio effects, this diversity increases stability in this era of rising variability.

    3. Dispersal-mediated effect of microhabitat availability and density dependence determine population dynamics of a forest floor web spider

      Mayura B. Takada and Tadashi Miyashita

      Article first published online: 24 MAR 2014 | DOI: 10.1111/1365-2656.12213

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      The authors provide novel integrative evidence that fragmentation paradigm and density-dependent paradigm in population dynamics could operate in a particular system, using populations of a web spider.

    4. An evolutionary perspective on reproductive individual heterogeneity in a marine vertebrate

      Thierry Chambert, Jay J. Rotella and Robert A. Garrott

      Article first published online: 17 MAR 2014 | DOI: 10.1111/1365-2656.12211

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      This study is the first to address the evolutionary consequences of individual reproductive heterogeneity in a long-lived vertebrate. Using Weddell seals as a model, the authors show that females producing more offspring do not trade off with the quality of their offspring and find evidence for heritability in female reproductive rates.

    5. Individual and sex-specific differences in intrinsic growth rate covary with consistent individual differences in behaviour

      Peter A. Biro, Bart Adriaenssens and Portia Sampson

      Article first published online: 17 MAR 2014 | DOI: 10.1111/1365-2656.12210

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      Why individuals within a given population consistently differ in behaviour is an important question, given the lability of behaviour. Here, the authors show that individual differences in intrinsic growth rate are a strong predictor of behavioural differences that persist over several months.

    6. Habitat degradation is threatening reef replenishment by making fish fearless

      Oona M. Lönnstedt, Mark I. McCormick, Douglas P. Chivers and Maud C. O. Ferrari

      Article first published online: 17 MAR 2014 | DOI: 10.1111/1365-2656.12209

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      In one of the world's most biologically diverse ecosystems, coral reefs, climate change is causing coral degradation. The authors find that recruitment and replenishment of reef fish will be affected by coral death via predation-mediated changes, as fish in dead habitats fail to respond to predators with severe consequences for survival.

    7. Heterogeneous hosts: how variation in host size, behaviour and immunity affects parasite aggregation

      Pieter T. J. Johnson and Jason T. Hoverman

      Article first published online: 17 MAR 2014 | DOI: 10.1111/1365-2656.12215

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      Despite the ubiquity of parasite aggregation, experimental studies investigating the proposed drivers of such variation or their interactions remain rare. By combining field surveys with controlled experiments, the authors show that only manipulations of host behaviour – and not size or immunity – reproduce infection heterogeneity comparable to field patterns.

    8. Frequent and seasonally variable sublethal anthrax infections are accompanied by short-lived immunity in an endemic system

      Carrie A. Cizauskas, Steven E. Bellan, Wendy C. Turner, Russell E. Vance and Wayne M. Getz

      Article first published online: 14 MAR 2014 | DOI: 10.1111/1365-2656.12207

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      Here, the authors examine anthrax hosts in a natural system and find that herbivores are capable of surviving anthrax, with zebras contracting sublethal anthrax at a very high rate. The study also helps to establish more rigourous protocols for running and interpreting ELISAs, a very commonly used assay in immunological ecology.

    9. Immigrants are attracted by local pre-breeders and recruits in a seabird colony

      K. Lesley Szostek, Michael Schaub and Peter H. Becker

      Article first published online: 14 MAR 2014 | DOI: 10.1111/1365-2656.12206

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      The authors estimate annual immigration rates in a common tern colony, using Bayesian modelling based on long-term individual life-history data. They find that immigration is the most important driver of colony growth, and its driving force is young first-time breeders, attracted to the colony by the presence of potential mates.

    10. Ecological opportunities and intraspecific competition alter trophic niche specialization in an opportunistic stream predator

      Charlotte Evangelista, Anatole Boiche, Antoine Lecerf and Julien Cucherousset

      Article first published online: 14 MAR 2014 | DOI: 10.1111/1365-2656.12208

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      This study describes how human-induced disturbances (i.e. forestry management), by modifying ecological opportunities, impact the trophic ecology of an aquatic predator. Based on longitudinal monitoring of individuals and stable isotope analyses, it provides a rare empirical evidence that trophic specialization can be indirectly driven by ecological opportunities through strengthened intraspecific competition.

    11. Towards an energetic landscape: broad-scale accelerometry in woodland caribou

      Anna A. Mosser, Tal Avgar, Glen S. Brown, C. Spencer Walker and John M. Fryxell

      Article first published online: 14 MAR 2014 | DOI: 10.1111/1365-2656.12187

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      One of the most difficult challenges in ecology is understanding the costs and benefits for animals living in complex landscapes under highly variable environmental conditions. Here, the authors show how accelerometers attached to radiocollars can be used to assess spatial and temporal variation in energetic costs facing free-ranging caribou in Canada's boreal forest.

    12. Linking phenological shifts to species interactions through size-mediated priority effects

      Nick L. Rasmussen, Benjamin G. Van Allen and Volker H. W. Rudolf

      Article first published online: 10 MAR 2014 | DOI: 10.1111/1365-2656.12203

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      Shifts in phenological timing can occur due to interannual variation in seasonal weather patterns as well as anthropogenic climate change, but the consequences for species interactions remain poorly understood. Using an experimental approach, this study demonstrates that phenological shifts can alter not only interaction strength but also demographic rates of species and community structure through a mechanism called size-mediated priority effects, in which individuals that arrive earlier can achieve a body size advantage over those that arrive later.

    13. Large-scale movements in European badgers: has the tail of the movement kernel been underestimated?

      Andrew W. Byrne, John L. Quinn, James J. O'Keeffe, Stuart Green, D. Paddy Sleeman, S. Wayne Martin and John Davenport

      Article first published online: 6 MAR 2014 | DOI: 10.1111/1365-2656.12197

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      Here, badger movements were studied at the largest spatial-scale hitherto undertaken (755 km2). The authors found that badger movements were characterised by a power-law distribution, and that spatial-scale had an important influence on movement estimation. A meta-analysis suggested that long-distance movements have been previously underestimated in this species.

    14. Using dynamic Brownian bridge movement modelling to measure temporal patterns of habitat selection

      Michael E. Byrne, J. Clint McCoy, Joseph W. Hinton, Michael J. Chamberlain and Bret A. Collier

      Article first published online: 6 MAR 2014 | DOI: 10.1111/1365-2656.12205

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      The authors use the dynamic Brownian bridge motion model to estimate space use of an animal between individual GPS telemetry locations based on movement behaviour and show how that information can be used to investigate fine-scale temporal variation in habitat use.

    15. Greater migratory propensity in hosts lowers pathogen transmission and impacts

      Richard J. Hall, Sonia Altizer and Rebecca A. Bartel

      Article first published online: 6 MAR 2014 | DOI: 10.1111/1365-2656.12204

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      This is the first theoretical demonstration that long-distance migration can lower pathogen transmission and impacts, with implications for predicting and managing pathogen threats in imperilled migratory species.

    16. Evidence of localized resource depletion following a natural colonization event by a large marine predator

      Carey E. Kuhn, Jason D. Baker, Rodney G. Towell and Rolf R. Ream

      Article first published online: 4 MAR 2014 | DOI: 10.1111/1365-2656.12202

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      By taking advantage of a rare colonization event, this study examined the impact of population growth on the foraging behaviour of a large marine predator. As the population increase 4-fold, northern fur seals were required to allot increasing effort to obtain prey as a result of localized resource depletion.

    17. You have full text access to this OnlineOpen article
      The marine diversity spectrum

      Daniel C. Reuman, Henrik Gislason, Carolyn Barnes, Frédéric Mélin and Simon Jennings

      Article first published online: 3 MAR 2014 | DOI: 10.1111/1365-2656.12194

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      This work demonstrates and explains for the first time a global phenomenon of how species diversity varies with body size in marine systems.

    18. Behavioural and physiological responses of limpet prey to a seastar predator and their transmission to basal trophic levels

      Tatiana Manzur, Francisco Vidal, José F. Pantoja, Miriam Fernández and Sergio A. Navarrete

      Article first published online: 25 FEB 2014 | DOI: 10.1111/1365-2656.12199

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      In an intertidal predator–prey system, the authors investigate the interplay among behavioural and physiological responses to predator-induced stress, demonstrating important energetic costs that can have long-lasting effects and can be transferred through the community.

    19. Night warming on hot days produces novel impacts on development, survival and reproduction in a small arthropod

      Fei Zhao, Wei Zhang, Ary A. Hoffmann and Chun-Sen Ma

      Article first published online: 25 FEB 2014 | DOI: 10.1111/1365-2656.12196

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      Night warming often occurs in hot days under climate change. Here the authors investigate life-history traits of aphids at six night-time temperatures combined with a high daytime temperature regimen. Night warming raises optimum temperature for development which challenges the ‘Kaufmann effect’ and reduces nymphal survival unexpectedly.

    20. A critical examination of indices of dynamic interaction for wildlife telemetry studies

      Jed A. Long, Trisalyn A. Nelson, Stephen L. Webb and Kenneth L. Gee

      Article first published online: 22 FEB 2014 | DOI: 10.1111/1365-2656.12198

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      The authors compare currently available techniques for detecting interactive behaviour – termed dynamic interaction-when multiple animals are tracked simultaneously (e.g. GPS collars). A recently developed metric for looking at local-level changes in interactive behaviour is highlighted.

    21. Spatial analyses for nonoverlapping objects with size variations and their application to coral communities

      Soyoka Muko, Ichiro K. Shimatani and Yoko Nozawa

      Article first published online: 22 FEB 2014 | DOI: 10.1111/1365-2656.12193

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      New pairwise statistics using minimum distances between objects are introduced to analyse the spatial patterns of nonoverlapping objects that vary in size. The utility is demonstrated by comparison with the conventional point process statistics and the grid-based statistics applied to encrusting coral community data.

    22. Multiple dimensions of bat biodiversity along an extensive tropical elevational gradient

      Laura M. Cisneros, Kevin R. Burgio, Lindsay M. Dreiss, Brian T. Klingbeil, Bruce D. Patterson, Steven J. Presley and Michael R. Willig

      Article first published online: 12 FEB 2014 | DOI: 10.1111/1365-2656.12201

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      This study demonstrates that species richness is not always an effective surrogate of phylogenetic or functional dimensions of biodiversity. Deviations of phylogenetic or functional dispersion from that expected based on species richness suggest that competitive exclusion and abiotic filtering operate simultaneously on different aspects of bat assemblages at high elevations. Photo credit: L.M. Cisneros.

    23. Multiple aspects of plasticity in clutch size vary among populations of a globally distributed songbird

      David F. Westneat, Veronika Bókony, Terry Burke, Olivier Chastel, Henrik Jensen, Thomas Kvalnes, Ádám Z. Lendvai, András Liker, Douglas Mock, Julia Schroeder, P. L. Schwagmeyer, Gabriele Sorci and Ian R. K. Stewart

      Article first published online: 7 FEB 2014 | DOI: 10.1111/1365-2656.12191

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      Here, the authors describe a complex pattern of within-individual flexibility in house sparrow clutch size. Particular aspects of flexibility vary among populations, but not as predicted by life-history theory. This has implications for understanding plasticity in life-history traits in general, and hypotheses about clutch size in particular. Photo credit to H. Jensen.

    24. Do stage-specific functional responses of consumers dampen the effects of subsidies on trophic cascades in streams?

      Takuya Sato and Katsutoshi Watanabe

      Article first published online: 5 FEB 2014 | DOI: 10.1111/1365-2656.12192

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      This is the first and novel study showing how the stage-specific functional responses of consumers are important to determine the strength of trophic cascade in the ecosystems that receive resource subsidies.

    25. You have full text access to this OnlineOpen article
      Concurrent effects of age class and food distribution on immigration success and population dynamics in a small mammal

      Alice Rémy, Jean-François Le Galliard, Morten Odden and Harry P. Andreassen

      Article first published online: 3 FEB 2014 | DOI: 10.1111/1365-2656.12184

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      The authors test, for the first time, the concurrent effects of the spatial distribution of food and immigrant age class on the success and impact of immigration. The results suggest that different individual traits are involved at different stages of the immigration process and that demographic consequences of immigration are context dependent.

    26. You have free access to this content
      The invasion of southern South America by imported bumblebees and associated parasites

      Regula Schmid-Hempel, Michael Eckhardt, David Goulson, Daniel Heinzmann, Carlos Lange, Santiago Plischuk, Luisa R. Escudero, Rahel Salathé, Jessica J. Scriven and Paul Schmid-Hempel

      Article first published online: 29 JAN 2014 | DOI: 10.1111/1365-2656.12185

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      This study documents how two species of bumblebees have spread since their introduction, what parasites they carry, and what their genetic population structure is. Taken together, the data show an unprecedented, very rapid invasive spread of one species, probably facilitated by associated parasites. The geographical scale of this invasion event affects the entire southern half of South America (B. dahlbomii, photograph P. Schmid-Hempel).

    27. Predator effects on a detritus-based food web are primarily mediated by non-trophic interactions

      Nabil Majdi, Anatole Boiché, Walter Traunspurger and Antoine Lecerf

      Article first published online: 29 JAN 2014 | DOI: 10.1111/1365-2656.12189

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      The authors show experimentally that non-trophic effects override lethally transmitted top-down predator impacts on an aquatic detritus-based ecosystem. Specifically, the results hint at interesting mechanisms by which the predatory flatworm Polycelis felina enhances detritus processing and colonization.

    28. Niche filtering rather than partitioning shapes the structure of temperate forest ant communities

      David Fowler, Jean-Philippe Lessard and Nathan J. Sanders

      Article first published online: 29 JAN 2014 | DOI: 10.1111/1365-2656.12188

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      This work combines experimental, phylogenetic and null modelling approaches to ask an age-old question: How do species co-occur at the same place at the same time? The experiments were carried out in forest sites such as this one in southern Appalachia.

    29. Spatial variation in the relationship between performance and metabolic rate in wild juvenile Atlantic salmon

      Grethe Robertsen, John D. Armstrong, Keith H. Nislow, Ivar Herfindal, Simon McKelvey and Sigurd Einum

      Article first published online: 28 JAN 2014 | DOI: 10.1111/1365-2656.12182

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      This is the first time survival effects of metabolic rate has been shown to vary across small spatial scales in an experimental field study, thus supporting the hypotheses that spatial heterogeneity in selection patterns can be one mechanism facilitating maintenance of intra-population variation in this fitness-related trait.

    30. Anatomy of a population cycle: the role of density dependence and demographic variability on numerical instability and periodicity

      Jeffrey R. Row, Paul J. Wilson and Dennis L. Murray

      Article first published online: 20 JAN 2014 | DOI: 10.1111/1365-2656.12179

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      The role of direct and delayed density dependence in generating population cyclicity are well established, but there remains uncertainty in how they interact with demographic vital rates to contribute to cyclic variation. This study reveals how the type of density dependence and its effect on demographic rates can generate spatiotemporal variation in cyclic dynamics, independent of changes in the strength of density dependence.

    31. Body size-mediated starvation resistance in an insect predator

      André Gergs and Tjalling Jager

      Article first published online: 13 JAN 2014 | DOI: 10.1111/1365-2656.12195

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      Individual organisms differ in their ability to endure transient periods of starvation with consequences for life history and population dynamics. Here, the authors provide mechanistic explanations on how survival relates to body size intraspecifically when food is scarce or totally absent, and how to characterize individual differences in survival within a population.

    32. Heat and immunity: an experimental heat wave alters immune functions in three-spined sticklebacks ( Gasterosteus aculeatus)

      Janine Dittmar, Hannah Janssen, Andra Kuske, Joachim Kurtz and Jörn P. Scharsack

      Article first published online: 7 JAN 2014 | DOI: 10.1111/1365-2656.12175

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      Heat waves become more frequent events during climate change and may influence host–parasite interactions. Here, we show that the activity of the immune system of an ectothermic animal species is temperature-dependent and suggest that heat waves may immunocompromise host species, thereby potentially facilitating the spread of infectious diseases.

    33. Comparative analysis of passive defences in spiders (Araneae)

      Stano Pekár

      Article first published online: 7 JAN 2014 | DOI: 10.1111/1365-2656.12177

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      This paper presents a through analysis of various primary defences used by spiders. It shows that the type of defence used is influenced by the geographic distribution, diel activity and foraging mode. It also reveals which defences are primitive and which are advanced.

    34. Natural malaria infection reduces starvation resistance of nutritionally stressed mosquitoes

      Fabrice Lalubin, Aline Delédevant, Olivier Glaizot and Philippe Christe

      Article first published online: 6 JAN 2014 | DOI: 10.1111/1365-2656.12190

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      The authors find, for the first time using a natural avian malaria model system, that naturally infected mosquitoes suffered reduced survival only under nutritionally stressing conditions. Hence, glucose availability may likely shape the vectorial capacity of mosquitoes in their natural habitat – a result of significant importance for epidemiology and the control of malaria.

    35. Warmer temperatures increase disease transmission and outbreak intensity in a host–pathogen system

      Bret D. Elderd and James R. Reilly

      Article first published online: 6 JAN 2014 | DOI: 10.1111/1365-2656.12180

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      The effects of climate change on disease transmission usually involve examining differences in transmission rates under various temperature regimes. Using empirical data from a field experiment, the authors show that variability about the rate of transmission may be equally if not more important when considering global warming.

    36. Temperature-related variation in growth rate, size, maturation and life span in a marine herbivorous fish over a latitudinal gradient

      Elizabeth D. L. Trip, Kendall D. Clements, David Raubenheimer and J. Howard Choat

      Article first published online: 10 DEC 2013 | DOI: 10.1111/1365-2656.12183

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      A long-standing hypothesis predicts that marine piscine herbivory is restricted to warmer latitudes. This study shows that temperature, not nutritional ecology, has a pervasive influence on the demography of a marine herbivorous fish and argues against the hypothesis that marine herbivorous fishes are nutritionally compromised at latitudes exceeding 30°.

    37. Dispersal, niche breadth and population extinction: colonization ratios predict range size in North American dragonflies

      Shannon J. McCauley, Christopher J. Davis, Earl E. Werner and Michael S. Robeson II

      Article first published online: 10 DEC 2013 | DOI: 10.1111/1365-2656.12181

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      Species range size affects their risk of extinction and can shape their response to climate change. This study of range size in dragonflies reveals that species traits and population dynamics are related to their range size, more dispersive species and those with higher colonization to extinction ratios had larger ranges.

    38. Inducible offences affect predator–prey interactions and life-history plasticity in both predators and prey

      Osamu Kishida, Zacharia Costa, Ayumi Tezuka and Hirofumi Michimae

      Article first published online: 9 DEC 2013 | DOI: 10.1111/1365-2656.12186

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      Trait changes in predator individuals, inducible offences, are well known examples of phenotypic plasticity, but less understood is how inducible offences affect predator-prey interactions. This study demostrates that inducible offences of predatory salamanders (Hynobius retardatus) have strong impacts on trophic interaction and predator and prey phenotypes across multiple life stages. Photo is a H. retardatus salsamander larva with offensive phenotype in a natural pond.

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