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Journal of Animal Ecology

Cover image for Vol. 84 Issue 1

January 2015

Volume 84, Issue 1

Pages 1–321

  1. In Focus

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Onwards and upwards – aphid flight trends follow climate change (pages 1–3)

      Simon R. Leather

      Article first published online: 24 DEC 2014 | DOI: 10.1111/1365-2656.12314

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      Drawing on the unique 50-year data set amassed by the suction trap network run by the Rothamsted Insect Survey, the author discusses how we can elucidate the mechanisms advancing aphid phenology under climate change and make predictions about emerging crop pests in the context of phenological coincidence and host plant availability.

  2. Review

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Relationship between growth and standard metabolic rate: measurement artefacts and implications for habitat use and life-history adaptation in salmonids (pages 4–20)

      Jordan Rosenfeld, Travis Van Leeuwen, Jeffrey Richards and David Allen

      Article first published online: 4 AUG 2014 | DOI: 10.1111/1365-2656.12260

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      This manuscript clarifies some of the mechanisms that drive variation in metabolic state among individuals or through ontogeny, and highlights how they relate to variation in capacity for growth, and how they may arise from fundamental ecological tradeoffs that influence anatomical design.

  3. Climate ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
    1. You have full text access to this OnlineOpen article
      Long-term phenological trends, species accumulation rates, aphid traits and climate: five decades of change in migrating aphids (pages 21–34)

      James R. Bell, Lynda Alderson, Daniela Izera, Tracey Kruger, Sue Parker, Jon Pickup, Chris R. Shortall, Mark S. Taylor, Paul Verrier and Richard Harrington

      Article first published online: 3 OCT 2014 | DOI: 10.1111/1365-2656.12282

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      We examined the migration of 55 species of aphid over the last five decades and showed that flight phenologies were linked to both the North Atlantic Oscillation and accumulated temperatures above 16 °C. We also demonstrated statistically that both spatial location and life history traits had a profound effect on the timing and size of aphid migrations.

  4. Trophic interactions

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Size, sex and individual-level behaviour drive intrapopulation variation in cross-ecosystem foraging of a top-predator (pages 35–48)

      James C. Nifong, Craig A. Layman and Brian R. Silliman

      Article first published online: 24 NOV 2014 | DOI: 10.1111/1365-2656.12306

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      Mobile top and apex predators can provide functional linkages between ecosystems and couple the ecological processes of spatially disparate communities. Thus, understanding what factors influence the degree to which individuals in a population exhibit cross-ecosystem foraging behaviors that provide these linkages is essential. The authors found a high degree of variation in cross-ecosystem foraging by the American alligator, driven by differences between size classes, sexes, and individuals. Given these findings it will be important to include population substructure when investigating the implications of mobile predator driven connectivity for ecosystems.

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      A continental scale trophic cascade from wolves through coyotes to foxes (pages 49–59)

      Thomas M. Newsome and William J. Ripple

      Article first published online: 9 JUL 2014 | DOI: 10.1111/1365-2656.12258

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      We show that the extirpation of wolves throughout North America has caused a continent-wide shift in coyote and red fox densities. To reverse this human induced cascade, wolves may need to occur continuously over large spatial areas. This presents a challenge because wolves are frequently persecuted due to human-wildlife conflicts.

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      How detectable is predation in stage-structured populations? Insights from a simulation-testing analysis (pages 60–70)

      Kiva L. Oken and Timothy E. Essington

      Article first published online: 16 AUG 2014 | DOI: 10.1111/1365-2656.12274

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      An absence of detectable species interactions from biomass time series may be due to interactive effects of environmental variability and complex food web linkages and life histories that are largely size- and age-structured. However, predation is most detectable for systems where predators act on mortality of sub-mature life stages.

  5. Behavioural ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Seed perishability determines the caching behaviour of a food-hoarding bird (pages 71–78)

      Eike Lena Neuschulz, Thomas Mueller, Kurt Bollmann, Felix Gugerli and Katrin Böhning-Gaese

      Article first published online: 22 SEP 2014 | DOI: 10.1111/1365-2656.12283

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      This study is among the first to highlight the importance of seed perishability as a mechanism for non-random caching behaviour and has important implications for the regeneration of animal-dispersed plants.

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      Ecological generalism and behavioural innovation in birds: technical intelligence or the simple incorporation of new foods? (pages 79–89)

      Simon Ducatez, Joanne Clavel and Louis Lefebvre

      Article first published online: 9 JUL 2014 | DOI: 10.1111/1365-2656.12255

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      We show that the ecological generalist advantage in front of current environmental change might be related to habitat generalists being better able to incorporate new types of food in their diet. In addition, we show that diet breadth and cognition are associated, suggesting that diet breadth and cognition co-evolved.

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      Life-history trade-offs mediate ‘personality’ variation in two colour morphs of the pea aphid, Acyrthosiphon pisum (pages 90–101)

      Wiebke Schuett, Sasha R. X. Dall, Michaela H. Kloesener, Jana Baeumer, Felix Beinlich and Till Eggers

      Article first published online: 12 JUL 2014 | DOI: 10.1111/1365-2656.12263

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      Here the authors investigate whether life-history trade-offs mediate personality variation in escape responses in different colour morphs of pea aphids. The results show that, under strong trade-offs, organisms who commit to particular lifestyles (being consistent) maximise their fitness.

    4. You have full text access to this OnlineOpen article
      Predator-dependent functional response in wolves: from food limitation to surplus killing (pages 102–112)

      Barbara Zimmermann, Håkan Sand, Petter Wabakken, Olof Liberg and Harry Peter Andreassen

      Article first published online: 6 SEP 2014 | DOI: 10.1111/1365-2656.12280

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      This study on the functional response of wild-living wolves to changes in prey density explores how not only the prey, but also predator density and interference between predators affect kill rates. The novel energetic approach to functional response modelling reveals surplus-killing in small and food limitation in large wolf packs.

  6. Community ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Species undersampling in tropical bat surveys: effects on emerging biodiversity patterns (pages 113–123)

      Christoph F. J. Meyer, Ludmilla M. S. Aguiar, Luis F. Aguirre, Julio Baumgarten, Frank M. Clarke, Jean-François Cosson, Sergio Estrada Villegas, Jakob Fahr, Deborah Faria, Neil Furey, Mickaël Henry, Richard K. B. Jenkins, Thomas H. Kunz, M. Cristina MacSwiney González, Isabel Moya, Jean-Marc Pons, Paul A. Racey, Katja Rex, Erica M. Sampaio, Kathryn E. Stoner, Christian C. Voigt, Dietrich von Staden, Christa D. Weise and Elisabeth K. V. Kalko

      Article first published online: 22 JUL 2014 | DOI: 10.1111/1365-2656.12261

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      This study explores inferential bias associated with species undersampling in tropical bat surveys. The authors demonstrate the potential as well as the limitations for reducing survey effort and streamlining sampling protocols, and consequently for increasing cost-effectiveness in tropical bat surveys or monitoring programs. Photo credit: C.F.J. Meyer.

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      Climate and the landscape of fear in an African savanna (pages 124–133)

      Corinna Riginos

      Article first published online: 24 JUL 2014 | DOI: 10.1111/1365-2656.12262

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      While there has been much study of the landscape of fear, this is one of the only experimental studies of this topic for large mammals.

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      Individual and species-specific traits explain niche size and functional role in spiders as generalist predators (pages 134–142)

      Dirk Sanders, Esther Vogel and Eva Knop

      Article first published online: 31 JUL 2014 | DOI: 10.1111/1365-2656.12271

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      Here the authors use a stable isotope analysis to measure the functional role of spiders as important generalist predators and link this role to species traits and individual traits.

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      Effects of land-use intensity on arthropod species abundance distributions in grasslands (pages 143–154)

      Nadja K. Simons, Martin M. Gossner, Thomas M. Lewinsohn, Markus Lange, Manfred Türke and Wolfgang W. Weisser

      Article first published online: 2 SEP 2014 | DOI: 10.1111/1365-2656.12278

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      We show that community structure of grassland arthropods shifts under increasing land-use intensity (mostly fertilization), increasing the dominance of already abundant species. We also show that the majority of rare species was only found on a small proportion of grassland plots and in low abundances, restricting recolonization after disturbance events.

  7. Population ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Unravelling the annual cycle in a migratory animal: breeding-season habitat loss drives population declines of monarch butterflies (pages 155–165)

      D. T. Tyler Flockhart, Jean-Baptiste Pichancourt, D. Ryan Norris and Tara G. Martin

      Article first published online: 25 JUN 2014 | DOI: 10.1111/1365-2656.12253

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      Threats to migratory animals occur at multiple periods of the annual cycle that are separated by thousands of kilometers and span international borders. Using a year-round population model, we show that population declines of monarch butterflies result from loss of breeding habitats in the United States, not from loss of wintering habitats in Mexico.

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      How Ebola impacts social dynamics in gorillas: a multistate modelling approach (pages 166–176)

      Céline Genton, Amandine Pierre, Romane Cristescu, Florence Lévréro, Sylvain Gatti, Jean-Sébastien Pierre, Nelly Ménard and Pascaline Le Gouar

      Article first published online: 24 JUL 2014 | DOI: 10.1111/1365-2656.12268

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      The authors provide a general framework for studying social dynamics in disturbed contexts and apply it to the case of a gorilla population affected by Ebola.

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      Impacts of breeder loss on social structure, reproduction and population growth in a social canid (pages 177–187)

      Bridget L. Borg, Scott M. Brainerd, Thomas J. Meier and Laura R. Prugh

      Article first published online: 7 JUL 2014 | DOI: 10.1111/1365-2656.12256

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      This paper quantitatively evaluates how the death of reproductive individuals in socially complex canid species could affect social group cohesion and population growth.

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      How topography induces reproductive asynchrony and alters gypsy moth invasion dynamics (pages 188–198)

      Jonathan A. Walter, Marcia S. Meixler, Thomas Mueller, William F. Fagan, Patrick C. Tobin and Kyle J. Haynes

      Article first published online: 4 AUG 2014 | DOI: 10.1111/1365-2656.12272

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      Mismatches in reproductive timing can limit mating opportunities, reducing population growth, but how this changes over environmental gradients is not well understood. Using field data and a model, the authors show that elevation and elevational variability affect the growth of gypsy moth populations via effects on reproductive timing.

  8. Evolutionary ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Fitness prospects: effects of age, sex and recruitment age on reproductive value in a long-lived seabird (pages 199–207)

      He Zhang, Maren Rebke, Peter H. Becker and Sandra Bouwhuis

      Article first published online: 22 JUL 2014 | DOI: 10.1111/1365-2656.12259

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      This paper investigates intraspecific variation in reproductive values due to age, sex and recruitment age in a long-lived seabird. It demonstrates that sex and RA affect underlying fitness traits, but that only age effects on fitness traits translate to variation in reproductive values.

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      Ecological causes of multilevel covariance between size and first-year survival in a wild bird population (pages 208–218)

      Sandra Bouwhuis, Oscar Vedder, Colin J. Garroway and Ben C. Sheldon

      Article first published online: 17 JUL 2014 | DOI: 10.1111/1365-2656.12264

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      The paper demonstrates how correlations between traits, fitness and environment influence estimates of selection, and shows how partitioning trait-effects between levels of selection and environmental factors is a promising approach to identify potential agents of selection.

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      Habitat-based polymorphism is common in stream fishes (pages 219–227)

      Caroline Senay, Daniel Boisclair and Pedro R. Peres-Neto

      Article first published online: 12 AUG 2014 | DOI: 10.1111/1365-2656.12269

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      The authors test whether fish inhabiting different habitats differ in their morphologies despite stream environmental heterogeneity. No previous study has provided a systematic comparison of fish morphology across the three types of habitats for a large number of species inhabiting the same system.

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      Movement propensity and ability correlate with ecological specialization in European land snails: comparative analysis of a dispersal syndrome (pages 228–238)

      Maxime Dahirel, Eric Olivier, Annie Guiller, Marie-Claire Martin, Luc Madec and Armelle Ansart

      Article first published online: 20 AUG 2014 | DOI: 10.1111/1365-2656.12276

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      We showed experimentally, by comparing 20 species, that habitat specialization and low mobility, two traits increasing extinction risk, are correlated in slow-moving land snails, making specialist species doubly vulnerable againt current environmental changes.

  9. Life histories

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Experimental manipulation of female reproduction demonstrates its fitness costs in kangaroos (pages 239–248)

      Uriel Gélin, Michelle E. Wilson, Graeme Coulson and Marco Festa-Bianchet

      Article first published online: 22 JUL 2014 | DOI: 10.1111/1365-2656.12266

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      By combining the first experimental manipulation of reproductive effort in wild marsupials with long-term monitoring of multiple populations, the authors quantify the fitness consequences of reproduction.

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      Predators, energetics and fitness drive neonatal reproductive failure in red squirrels (pages 249–259)

      Emily K. Studd, Stan Boutin, Andrew G. McAdam, Charles J. Krebs and Murray M. Humphries

      Article first published online: 9 SEP 2014 | DOI: 10.1111/1365-2656.12279

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      This study looks are factors influencing reproductive failure in a free-ranging species over 24 years. Through the inclusion of predator abundance, and energetic and fitness costs and benefits of parental investment, we show that occurrences of reproductive failure represent a tradeoff between costs and benefits.

  10. Spatial ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Territoriality and home-range dynamics in meerkats, Suricata suricatta: a mechanistic modelling approach (pages 260–271)

      Andrew W. Bateman, Mark A. Lewis, Gabriella Gall, Marta B. Manser and Tim H. Clutton-Brock

      Article first published online: 29 JUL 2014 | DOI: 10.1111/1365-2656.12267

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      The authors employ mechanistic home-range models to describe meerkat space use. They find a surprising lack of group-size effect in territorial patterns of this highly social species, and they extend existing models to capture dynamical aspects of home-range development and shift.

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      Forecasting spring from afar? Timing of migration and predictability of phenology along different migration routes of an avian herbivore (pages 272–283)

      Andrea Kölzsch, Silke Bauer, Rob de Boer, Larry Griffin, David Cabot, Klaus-Michael Exo, Henk P. van der Jeugd and Bart A. Nolet

      Article first published online: 17 SEP 2014 | DOI: 10.1111/1365-2656.12281

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      This article compares spring migration timing of three barnacle geese populations using GPS tracks. The geese were not strictly following, but overtaking the green wave. Predictability of onset of spring differed with presence or absence of ecological barriers, geese arriving at stopovers close to the onset of spring at high predictability.

  11. Physiological ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Ecological implications of reduced forage quality on growth and survival of sympatric geese (pages 284–298)

      Samantha E. Richman, James O. Leafloor, William H. Karasov and Scott R. McWilliams

      Article first published online: 27 AUG 2014 | DOI: 10.1111/1365-2656.12270

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      Growth trajectories of Canada and lesser snow goose goslings raised on grass-based diets (protein: 10%, 14%, 18%; fibre: 30%, 45%) revealed size-related differences in growth and survival in response to diminished diet quality. Canada goose goslings were able to slow growth rates and delay reaching adult size in response to low protein in the diet, whereas snow goose goslings maintained high growth rates and were unable to survive on the low-protein diets. These differences in growth strategy indicate a sensitive, but species-specific, response to changes in forage quality and quantity in arctic ecosystems caused by abundance of the geese themselves or by climate change.

  12. Macroecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
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      Empirical tests of harvest-induced body-size evolution along a geographic gradient in Australian macropods (pages 299–309)

      Thomas A. A. Prowse, Rachel A. Correll, Christopher N. Johnson, Gavin J. Prideaux and Barry W. Brook

      Article first published online: 13 AUG 2014 | DOI: 10.1111/1365-2656.12273

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      It is often asserted that commercial harvesting of kangaroos and wallabies could be driving the evolutionary dwarfing of these species. In contrast, we demonstrate evidence of small body size increases in these species over time, consistent with reduced mortality due to a depauperate predator guild and human-improved grassland productivity.

  13. Parasite and disease ecology

    1. Top of page
    2. In Focus
    3. Review
    4. Climate ecology
    5. Trophic interactions
    6. Behavioural ecology
    7. Community ecology
    8. Population ecology
    9. Evolutionary ecology
    10. Life histories
    11. Spatial ecology
    12. Physiological ecology
    13. Macroecology
    14. Parasite and disease ecology
    1. You have free access to this content
      Trans-generational parasite protection associated with paternal diet (pages 310–321)

      Eleanore D. Sternberg, Jacobus C. de Roode and Mark D. Hunter

      Article first published online: 27 OCT 2014 | DOI: 10.1111/1365-2656.12289

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      The authors assessed parentally derived parasite protection in a monarch butterfly-protozoan parasite system where resistance is influenced by secondary chemicals in the larval food plant. It was found that offspring were more resistant to infection if their fathers were reared on medicinal milkweed plants, suggesting paternal transfer of environmentally derived resistance.

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