58 Works

Data from: Fluctuating seawater pH/ p CO 2 regimes are more energetically expensive than static pH/ p CO 2 levels in the mussel Mytilus edulis

Stephanie Mangan, Mauricio A. Urbina, Helen S. Findlay, Rod W. Wilson & Ceri Lewis
Ocean acidification (OA) studies typically use stable open-ocean pH or CO2 values. However, species living within dynamic coastal environments can naturally experience wide fluctuations in abiotic factors, suggesting their responses to stable pH conditions may not be reflective of either present or near-future conditions. Here we investigate the physiological responses of the mussel Mytilus edulis to variable seawater pH conditions over short- (6 h) and medium-term (2 weeks) exposures under both current and near-future OA...

Data from: Effects of macronutrient intake on the lifespan and fecundity of the marula fruit fly, Ceratitis cosyra (Tephritidae): extreme lifespan in a host specialist.

Kevin Malod, C. Ruth Archer, John Hunt, Susan W. Nicolson & Christopher W. Weldon
In insects, lifespan and reproduction are strongly associated with nutrition. The ratio and amount of nutrients individuals consume affects their life expectancy and reproductive investment. The geometric framework (GF) enables us to explore how animals regulate their intake of multiple nutrients simultaneously and determine how these nutrients interact to affect life history traits of interest. Studies using the GF on host-generalist tephritid flies have highlighted trade-offs between longevity and reproductive effort in females, mediated by...

Data from: Wild birds respond to flockmate loss by increasing their social network associations to others

Josh A. Firth, Bernhard Voelkl, Ross A. Crates, Lucy M. Aplin, Dora Biro, Darren P. Croft & Ben C. Sheldon
Understanding the consequences of losing individuals from wild populations is a current and pressing issue, yet how such loss influences the social behaviour of the remaining animals is largely unexplored. Through combining the automated tracking of winter flocks of over 500 wild great tits (Parus major) with removal experiments, we assessed how individuals' social network positions responded to the loss of their social associates. We found that the extent of flockmate loss that individuals experienced...

Data from: Evolvability meets biogeography: evolutionary potential decreases at high and low environmental favourability

Jesús Martinez-Padilla, Alba Estrada, Regan Early & Francisco García-González
Understanding and forecasting the effects of environmental change on wild populations requires knowledge on a critical question: do populations have the ability to evolve in response to that change? However, our knowledge on how evolution works in wild conditions under different environmental circumstances is extremely limited. We investigated how environmental variation influences the evolutionary potential of phenotypic traits. We used published data to collect or calculate 135 estimates of evolvability of morphological traits of European...

Data from: Bayesian inference reveals positive but subtle effects of experimental fishery closures on marine predator demographics

Richard B. Sherley, Barbara J. Barham, Peter J. Barham, Kate J. Campbell, Robert J.M. Crawford, Jennifer Grigg, Catharine Horswill, Alistair McInnes, Taryn L. Morris, Lorien Pichegru, Antje Steinfurth, Florian Weller, Henning Winker, Stephen C. Votier & Cat Horswill
Global forage-fish landings are increasing, with potentially grave consequences for marine ecosystems. Predators of forage fish may be influenced by this harvest, but the nature of these effects is contentious. Experimental fishery manipulations offer the best solution to quantify population-level impacts, but are rare. We used Bayesian inference to examine changes in chick survival, body condition and population growth rate of endangered African penguins Spheniscus demersus in response to eight years of alternating time-area closures...

Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans

Robert C. Lacy, Rob Williams, Erin Ashe, , Lauren J. N. Brent, Christopher W. Clark, Darren P. Croft, Deborah A. Giles, Misty MacDuffee & Paul C. Paquet
Understanding cumulative effects of multiple threats is key to guiding effective management to conserve endangered species. The critically endangered, Southern Resident killer whale population of the northeastern Pacific Ocean provides a data-rich case to explore anthropogenic threats on population viability. Primary threats include: limitation of preferred prey, Chinook salmon; anthropogenic noise and disturbance, which reduce foraging efficiency; and high levels of stored contaminants, including PCBs. We constructed a population viability analysis to explore possible demographic...

Data from: Pregnancy is detected via odour in a wild cooperative breeder

Jessica Mitchell, Michael A. Cant & Hazel J. Nichols
Among mammals, scent has long been known to encode oestrus; however, in many species, detecting pregnancy may also be important in terms of both competition and mate-choice. Here, we show, through odour presentation experiments, that pregnancy is discernible via scent by both sexes in the cooperatively breeding banded mongoose, Mungos mungo. Males spent more time investigating and were more likely to scent mark the odours of non-pregnant females, compared to pregnant females. Females showed increased...

Data from: SIDER: an R package for predicting trophic discrimination factors of consumers based on their ecology and phylogenetic relatedness

Kevin Healy, Thomas Guillerme, Seán B. A. Kelly, Richard Inger, Stuart Bearhop & Andrew L. Jackson
Stable isotope mixing models (SIMMs) are an important tool used to study species’ trophic ecology. These models are dependent on, and sensitive to, the choice of trophic discrimination factors (TDF) representing the offset in stable isotope delta values between a consumer and their food source when they are at equilibrium. Ideally, controlled feeding trials should be conducted to determine the appropriate TDF for each consumer, tissue type, food source, and isotope combination used in a...

Registration Year

  • 2017
    58

Resource Types

  • Dataset
    58

Affiliations

  • University of Exeter
    58
  • Western Sydney University
    4
  • Centre for Ecology & Hydrology
    3
  • UK Centre for Ecology & Hydrology
    3
  • University of Edinburgh
    3
  • Bangor University
    2
  • Plymouth University
    2
  • University of Pennsylvania
    2
  • University of Glasgow
    2
  • University of Jaén
    2