7 Works

Data from: Shark movement strategies influence poaching risk and can guide enforcement decisions in a large, remote Marine Protected Area

David Jacoby, Francesco Ferretti, Robin Freeman, Aaron Carlisle, Taylor Chapple, David Curnick, Jonathan Dale, Robert Schallert, David Tickler & Barbara Block
Large, remote marine protected areas (MPAs) containing both reef and pelagic habitats, have been shown to offer considerable refuge to populations of reef-associated sharks. Many large MPAs are, however, impacted by illegal fishing activity conducted by unlicensed vessels. While enforcement of these reserves is often expensive, it would likely benefit from the integration of ecological data on the mobile animals they are designed to protect. Consequently, shark populations in some protected areas continue to decline,...

Polygenic basis for adaptive morphological variation in a threatened Aotearoa | New Zealand bird, the hihi (Notiomystis cincta)

Laura Duntsch, Barbara Tomotani, Pierre De Villemereuil, Patricia Brekke, Kate Lee, John Ewen & Anna Santure
To predict if a threatened species can adapt to changing selective pressures, it is crucial to understand the genetic basis of adaptive traits, especially in species historically affected by severe bottlenecks. We estimated the heritability of three hihi (Notiomystis cincta) morphological traits known to be under selection: nestling tarsus length, body mass and head-bill length, using 523 individuals and 39,699 single nucleotide polymorphisms (SNPs) from a 50K Affymetrix SNP chip. We then examined the genetic...

Collateral benefits of targeted supplementary feeding on demography and growth rate of a threatened population

Sarah R. Fenn, Eric M. Bignal, Amanda E. Trask, Davy I. McCracken, Pat Monaghan & Jane M. Reid
1. Effective evidence-based conservation requires full quantification of the impacts of targeted management interventions on focal populations. Such impacts may extend beyond target individuals to also affect demographic rates of non-target conspecifics (e.g. different age classes). However, such collateral (i.e. unplanned) impacts are rarely evaluated, despite their potential to substantially alter conservation outcomes. Subsequent management decisions may then be poorly informed or erroneous. 2. We used 15 years of individual-based demographic data in a “before-after...

Mammal population densities at a global scale are higher in human-modified areas

Marlee A. Tucker, Luca Santini, Chris Carbone & Thomas Mueller
Global landscapes are changing due to human activities with consequences for both biodiversity and ecosystems. For single species, terrestrial mammal population densities have shown mixed responses to human pressure, with both increasing and decreasing densities reported in the literature. How the impacts of human activities on mammal populations translates into altered global density patterns remains unclear. Here we aim to disentangle the effect of human impacts on large-scale patterns of mammal population densities using a...

Goat collective decisions

Daniel Sankey, Lisa O'Bryan, Simon Garnier, Guy Cowlishaw, Phil Hopkins, Mark Holton, Ines Fürtbauer & Andrew King
For group-living animals to remain cohesive they must agree on where to travel. Theoretical models predict shared group decisions should be favoured, and a number of empirical examples support this. However, the behavioural mechanisms that underpin shared decision-making are not fully understood. Groups may achieve consensus of direction by active communication of individual preferences (i.e. voting), or by responding to each other’s orientation and movement (i.e. copying). For example, African buffalo (Syncerus caffer) are reported...

Foraging behaviour alters with social environment in a juvenile songbird

Victoria Franks, John Ewen, Mhairi McCready & Rose Thorogood
Early independence from parents is a critical period where social information acquired vertically may become outdated, or conflict with new information. However, across natural populations it is unclear if newly-independent young persist in using information from parents, or if group-level effects of conformity override previous behaviours. Here we test if wild juvenile hihi (Notiomystis cincta, a New Zealand passerine) retain a foraging behaviour from parents, or if they change in response to the behaviour of...

A practical approach to measuring the biodiversity impacts of land conversion

América P. Durán, Jonathan M. H. Green, Christopher D. West, Piero Visconti, Neil Burgess, Malika Virah-Sawmy & Andrew Balmford
1. Further progress in reducing biodiversity loss relies on the improved quantification of the connections between drivers of habitat loss and subsequent biodiversity impacts. To this end, biodiversity impact metrics should be able to report linked trends in specific human activities and changes in biodiversity state, accounting for both the ecology of different species, and the cumulative effects of historical habitat losses. These characteristics are not currently captured within a single metric. 2. Here we...

Registration Year

  • 2020
    7

Resource Types

  • Dataset
    7

Affiliations

  • Zoological Society of London
    7
  • University of Cambridge
    2
  • Stanford University
    1
  • University of Glasgow
    1
  • Oregon State University
    1
  • University of Aberdeen
    1
  • Radboud University Nijmegen
    1
  • Senckenberg Biodiversity and Climate Research Centre
    1
  • Nederlands Instituut voor Ecologie
    1
  • Humboldt University of Berlin
    1