5 Works

Global human influence maps reveal clear opportunities in conserving Earth’s remaining intact terrestrial ecosystems

Jason Riggio, Jonathan E. M. Baillie, Steven Brumby, Erle Ellis, Christina M. Kennedy, James R. Oakleaf, Alex Tait, Therese Tepe, David M. Theobald, Oscar Venter, James E.M. Watson & Andrew P. Jacobson
Leading up to the 2020 Convention on Biological Diversity there is momentum around setting bold conservation targets. Yet it remains unclear how much of Earth’s land area remains without significant human influence and where this land is located. We compare four recent global maps of human influences across Earth’s land, Anthromes, Global Human Modification, Human Footprint, and Low Impact Areas, to answer these questions. Despite using various methodologies and data, these different spatial assessments independently...

Dataset for: Spatial and environmental effects on Coho Salmon life-history trait variation

Kim Tuor, Daniel Heath & Mark Shrimpton
Adult size, egg mass, fecundity and mass of gonads are affected by trade-offs between reproductive investment and environmental conditions shaping the evolution of life-history traits among populations for widely distributed species. Coho salmon Oncorhynchus kisutch have a large geographic distribution and different environmental conditions are experienced by populations throughout their range. We examined the effect of environmental variables on female size, egg size, fecundity, and reproductive investment of populations of Coho Salmon from across British...

Change in terrestrial human footprint drives continued loss of intact ecosystems

Brooke Williams, Oscar Venter, James Allan, Scott Atkinson, Jose Rehbein, Michelle Ward, Moreno Di Marco, Hedley Grantham, Jamison Ervin, Scott Goetz, Andrew Hansen, Patrick Jantz, Rajeev Pillay, Susana Rodríguez-Buriticá, Christina Supples, Anne Virnig & James Watson
Human pressure mapping is important for understanding humanity's role in shaping Earth’s patterns and processes. Our ability to map this influence has evolved, thanks to powerful computing, earth observing satellites, and new bottom-up census and crowd-sourced data. Here, we provide the latest temporally inter-comparable maps of the terrestrial human footprint, and assessment of change in human pressure at global, biome, and ecoregional scales. In 2013, 42% of terrestrial Earth could be considered relatively free of...

Data from: Benefits of an anti-parasite treatment are influenced by within-brood size variation in Tree Swallows (Tachycineta bicolor)

Ilsa Griebel & Russell Dawson
In all animals, susceptibility to parasites can differ among individuals. Young, nest-bound birds are exposed to a diversity of nest-dwelling ectoparasites that typically feed on their blood. Within broods, hatching asynchrony creates size hierarchies that result in morphological and physiological variation among nest mates, and susceptibility to parasites also may vary predictably with this size hierarchy. Our objective was to use a broad-spectrum, anti-parasite drug, ivermectin (IVM), to treat individual nestling Tree Swallows (Tachycineta bicolor)...

Data from: Latitudinal limit not a cold limit: Cold temperatures do not constrain an endangered tree species at its northern edge

Alana J. Clason, Eliot J. B. McIntire & Philip J. Burton
Aim A strong influence of climate on species’ range is often assumed, and forms the basis for projecting many future range shifts with changing climate. Particularly at poleward latitudinal or elevational edges, abiotic conditions are thought to play a major role in limiting distributions. We estimated the roles of climate and landscape features in shaping habitat at the northern distributional edge of a critically threatened mountain tree species. Location British Columbia and Alberta, Canada. Taxon...

Registration Year

  • 2020
    5

Resource Types

  • Dataset
    5

Affiliations

  • University of Northern British Columbia
    5
  • University of Queensland
    2
  • World Bank
    1
  • The Nature Conservancy
    1
  • University of Windsor
    1
  • Alexander von Humboldt Biological Resources Research Institute
    1
  • Northern Arizona University
    1
  • Sapienza University of Rome
    1
  • Fisheries and Oceans Canada
    1
  • Montana State University
    1