- Scaling laws predict global microbial diversity — … predict that there are up to 1 trillion microbial species on Earth. These estimates are much greater than previously predicted and emphasise the wealth of microbial biodiversity that remains to be explored on our planet …
- Environmental filtering explains variation in plant diversity along resource gradients — … new evidence to challenge the prevailing theory that resource competition regulates plant diversity along resource gradients …
- The natural history of the South Hills crossbill in relation to its impending extinction — … describes an amazing odyssey, starting with a recent discovery of a new vertebrate species … followed by evidence to show that the species has experienced an 80% decline in its population size in less than ten years due to warming climatic conditions …
- Improvements in ecosystem services from investments in natural capital — … introduces the first national ecosystem assessment in China, with many important discoveries …
- How variation between individuals affects species coexistence — … [the authors] show mathematically that within-population variation in some general situations may have negative effects on the coexistence of two competing species …
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Tags: Anthropocene, bees, biodiversity, carbon, carbon storage, China, climate change, climatic debt, community ecology, competition, coral reefs, decline, defauntation, deforestation, ecosystem services, ecosystems, extinction, Fertiliser, forests, microbes, microbial diversity, mutualism, neonicotinoids, nutrient loading, nutrients, plant diversity, pollination, Soil, species loss, Species richness, sustainability, time series
Categories : conservation
Six more biodiversity cartoons — this time, from France. They’re in French to pay hommage to my hosts (and acknowledge their fanaticism for les bandes dessinées), but don’t worry, I’ve provided full translation (see full stock of previous ‘Cartoon guide to biodiversity loss’ compendia here).
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Tags: biodiversity, biodiversity cartoons, capitalism, cartoon, cartoons, climate change, Ecosystem, ecosystems, wetlands, wildlife
Categories : Australia, development, environmental policy
Another year, another arbitrary retrospective list – but I’m still going to do it. Based on the popularity of last year’s retrospective list of influential conservation papers as assessed through F1000 Prime, here are 20 conservation papers published in 2014 that impressed the Faculty members.
Once again for copyright reasons, I can’t give the whole text but I’ve given the links to the F1000 assessments (if you’re a subscriber) and of course, to the papers themselves. I did not order these based on any particular criterion.
- Assemblage time series reveal biodiversity change but not systematic loss – This substitution of taxa, rather than a systematic loss of diversity at local scales, provides strong evidence for the development of novel ecosystem compositions in ecosystems across the globe, with important implications for management and changes in the delivery of ecosystem goods and services ...
- Social equity matters in payments for ecosystem services – … attempts to govern ecosystem service provision with efficiency-based PES schemes risk failure if they fail to consider these [social equity] feedbacks …
- Tropical forests in the Anthropocene – … review deforestation, climate change, defaunation and other processes driving forest change … they also discuss interactions between these processes and the considerable heterogeneity the severity of the different processes …
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Tags: Anthropocene, assemblage, biodiversity, carbon, climate change, coral reefs, decline, deforestation, disease, ecosystem services, ecosystems, extinction, fishing, forests, grazing, payments for ecosystem services, rays, resilience, sharks, species loss
Categories : conservation
Let’s face it, ‘biodiversity’ is a slippery and abstract concept for most people. Hell, even most ecologists have a hard time describing what biodiversity means. To the uninitiated, it seems simple enough. It’s just the number of species, isn’t it?
Well, no. It isn’t.
Unfortunately, it’s far, far more complicated. First, the somewhat arbitrary pigeon-holing of organisms into Linnaean taxonomic boxes doesn’t really do justice to the genetic gradients within species, among populations and even between individuals. We use the pigeon-hole taxonomy because it’s convenient, that’s all. Sure, molecular genetics has revolutionised the concept, but to most people, a kangaroo is a kangaroo, a robin is a robin and an earthworm is an earthworm. Hierarchical Linnaean taxonomy prevails.
Then there’s the more prickly issue of α, β and γ diversity. α diversity essentially quantifies species richness within a particular area, whereas β diversity is the difference in α diversity between ecosystems. γ diversity is used to measure overall diversity for the different constituent ecosystems of a region. Scale is very, very important (see our recent book chapter for more on this). Read the rest of this entry »
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Tags: biodiversity, biowealth, ecology, ecosystem services, ecosystems, environment, money, terminology, value, wealth, worth
Categories : climate change, conservation, conservation biology, ecological literacy, ecosystem services, environmental policy, function, science communication