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  • Global vulnerability of marine mammals to global warming
    Intrinsic sensitivity to global warming We evaluated the intrinsic sensitivity of marine mammal species to ocean warming using a trait-based approach 40,45,46,47,48 The species sensitivity to
  • endangered species - National Geographic Society
    Threatened categories have different thresholds for these criteria As the population and range of the species decreases, the species becomes more threatened 1) Population reduction rate A species is classified as vulnerable if its population has declined between 30 and 50 percent This decline is
  • The sizes of species’ geographic ranges - Gaston - 2009 . . .
    Many threatened species are categorized based only on EOO, although categorizations for about half of the birds and over 90% of the gymnosperms use both EOO and AOO As the usage of these geographic range size measures has increased, the importance of long-standing problems in quantifying EOO and AOO has become more apparent, and fresh issues
  • Biodiversity - Wikipedia
    About 10% of the species of the Earth can be found in Colombia, including over 1,900 species of bird, more than in Europe and North America combined, Colombia has 10% of the world's mammals species, 14% of the amphibian species and 18% of the bird species of the world [97]
  • Extinction cascades, community collapse, and recovery across . . .
    In this study, we focus on the Early Toarcian Extinction Event (ETEE; ~183 Ma), a second order extinction event 25 (i e , an extinction event that caused less than 40% generic extinction globally
  • Frog population viability under present and future climate . . .
    Understanding the impact of climate change on amphibians is an issue of particular urgency; a third of all amphibian species are considered threatened, more than twice as many amphibians are critically endangered compared to mammals or birds (Stuart et al 2004), and amphibian decline is considered evidence that the sixth mass extinction in the





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