Image Credit: Julia Ramsauer, CC BY 2.0
Tag Archives: climate
Image Credit: Abigail McQuatters-Gollop, CC BY 2.0, Image Cropped
For the past three and a half years, the UK has been trawled through the political benthic sludge that is Brexit. With a second general election in two years arriving this Thursday, some sort of resolution finally seems to be on the horizon. And while much of the public discourse has focussed on the potential implications for Brexit following the election, climate change and the environment have also featured heavily.
Long story short, when I was in the final year of my Masters I wrote an essay on ecofeminism. My social science teacher Rapti Siriwardane-se Zoysa said that we should turn it into a piece for their working journal, and we did. But if you’ve ever opened a sociology paper before as a non social scientist, you’ll know that those things can be DENSE.
Whilst making people aware of the consequences of climate change and land fragmentation is important, choosing how to deliver that message is equally important (Image Credit: Backbone Campaign, CC BY 2.0, Image Cropped)
Ok, first up, I want to apologise. I know that giving Fox News any attention when it comes to scientific progress is a bad start. I’m hoping that if you’re reading this, you already know that their stance on climate change and biological degradation is… let’s say flawed.
Are polar bear habitat resource selection functions developed from 1985-1995 data still useful? (2019) Durner et. al, Ecology and Evolution, https://doi.org/10.1002/ece3.5401
Ecologists often attempt to predict where species are using the spread of the resources that the species depends upon. This is done because often it’s simply easier to monitor the resources than the species. Resource selection functions (RSFs) are a tool which use the likelihood of a resource being used to predict a species distribution. However, if the landscape the resource is found in changes drastically, a resource selection function may start to be less useful.
In the early 2000s, using data collected in the 80s and 90s, US scientists developed RSFs for polar bears, a species which has regrettably become the poster child for the survival of the Arctic ecosystem. Even back then, the bears’ preferred habitat was receding. Now, with human-driven climate change severely reducing sea ice and markedly altering the bears’ habitat, this week’s authors wanted to know how well those RSFs work nowadays.
When we think of global warming, we tend to be a bit selfish and think of how it affects us in our daily lives, but the warming temperatures on our planet have the potential to affect the base of all of our food webs, plants (Image Credit: Matt Lavin, CC BY-SA 2.0).
Phenology in a warming world: differences between native and non-native plant species (2019) Zettlemoyer et al., Ecology Letters, https://dx.doi.org/10.1111/ele.13290
The timing of life-history events (such as births, growing seasons, or reproductive period) is called “phenology”, and this aspect of an organism’s life is particularly sensitive to climate change. So much so that changes in the phenology of certain processes are often used as an indicator of climate change and how it affects a given organism.
We’ve talked about the effects of rising temperatures in animals here on Ecology for the Masses, but there is a lot of evidence in the scientific literature for climate change causing a multitude of different changes in the phenology of various plants. Not only does the direction of the change differ (some organisms experience delays in certain events, others have earlier starts), but the size, or magnitude, of the change also differs. The authors of today’s study wanted to examine these changes in the context of an invasive plant species and how it may be able to outcompete a native plant.
Contrasting consequences of climate change for migratory geese: Predation, density dependence and carryover effects offset benefits of high-arctic warming (2019) Layton-Matthews et al., Global Change Biology, DOI: 10.1111/gcb.14773
Most of us know that climate change will bring warmer, shorter winters to most parts of the world. For many species in areas like the Arctic, it would be easy to interpret this as a good thing – plants grow earlier, so animals get more food, right? Naturally it’s never that simple. Many herbivorous species have evolved in sync with climate cycles so that their reproduction peaks when food becomes available. If season start dates change, these species may not be able to change their own cycles in time. Additionally, what happens if populations of their predators suddenly boom?
Today’s authors wanted to know what role a warming climate played in the population fluctuations of migratory barnacle geese (Branta leucopsis).