Tag Archives: use

Kath Handasyde: Charisma, Culling and Conservation

Koalas are gorgeous, no doubt. But does their overwhelming charisma mean that we forget about other species?

Koalas are gorgeous, no doubt. But does their overwhelming charisma mean that we forget about other species? (Image Credit: Erik Veland, CC BY-SA 3.0)

Australia plays host to a wonderful range of very endearing species. Tourists come from the world over to get up close with kangaroos or koalas. But the charisma of these animals can often lead to issues, whether it’s prioritisation of resources for them over other more endangered species, or even to the detriment of the species themselves.

Doctor Kath Handasyde of Melbourne University has been working with Australian field wildlife for almost 40 years, and is perhaps the most charismatic teacher I had during my Bachelor’s at the same institute. During my time in Melbourne, I had the chance to talk to Kath about the sometimes problematic role of charismatic species in Australian wildlife conservation.

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Marie-Agnès Coutellec: The Problem with Pesticides

Europe's freshwater ecosystems are increasingly exposed to pesticides, and the trend is only getting worse. So is there hope for our aquatic life?

When I’ve talked about anthropogenic effects, I’ve been guilty of focussing far too much on climate change and land use. But our dependence on toxicants like pesticides also has a profound impact on ecosystems, freshwater ecosystems in particular. On her recent visit to NTN in Trondheim, I spoke to ecotoxicologist Dr. Marie-Agnes Coutellec about her research group’s work with pesticides, and the likely future for much of Europe’s aquatic life.

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Population Trends in the Face of Climate Change

The Indian Pond Heron, one species which could face population declines as a result of climate change

The Indian Pond Heron, one species which could face population declines as a result of climate change (Image Credit: Dr Raju Kasambe CC BY-SA 4.0)

Rapid warming is associated with population decline among terrestrial birds and mammals globally (2018) Spooner et al., Global Change Biology, DOI: 10.1111/gcb.14361

The Crux

The term climate change is almost ubiquitous these days. Humans tend to concentrate on how the warming of certain parts of the globe will affect them, but the species we share the globe with also experience a myriad of effects at the hands of climate change. These include rising temperatures constricting the ranges of some species and concurrently extending the range of others, who can move into areas that were previously too cold for them.

Whilst the focus of climate change has often been on species range shifts, the effects on species abundances are less well studied. This paper attempts to quantify the effects of climate change on a large number of bird and mammal species, whilst accounting for other factors which could affect species abundances, like rates of land use by humans, species body size, and whether or not the animals are in a protected area.

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