Image Credit: Jorg Hempel, CC BY-SA 2.0
Can plant traits predict seed dispersal probability via red deer guts, fur, and hooves? (2019) Petersen and Bruun, Ecology and Evolution, https://doi.org/10.1002/ece3.5512
Large animals are key players in structuring both the physical structure and the species compositions of plant communities. They eat some plants, but not others, they trample vegetation, they deposit nutrients through feces. However, they can also affect plant communities by transporting seeds (a process called zoochory) – either by eating them and defecating later on or by acting as vehicles for seeds stuck in their fur or on their feet. As large plant eaters are found in most of the world, and several populations are actually increasing, a deeper insight into these processes could turn out to be of great importance.
Today’s authors (myself and former colleague Hans Henrik Bruun) looked at the transport of plant seeds by red deer in Denmark: whether the different kinds of seed dispersal are significantly different with regards to what species are transported, and if certain plant and seed traits can be used to predict whether a seed is more likely to be found on the outside or inside of a deer.
On the left, a thriving wetland. The right, an arid forest. (Image Credit: Sam Perrin, CC BY-SA 4.0)
I’m standing on the dry side of the Murrumbidgee floodplain in country Australia. I say dry side, because whilst I’m standing on the harsh, dusty platform of soil and desiccated leaves that is pretty standard for this area, 15 metres away there’s a thriving wetland environment. It boasts waterbirds, a flock of emus, thirsty kangaroos, and fish. All that’s separating the wetland and dry land on which I stand is a road, only about half a metre above water level.
With the age of consumption well and truly upon us, we cover some of the more important things to consider when trying to eat sustainably (Image Credit: Love Food Hate Waste NZ, CC BY-SA 4.0)
Here at the Centre of Biodiversity Dynamics, we all pride ourselves in being a little more eco-conscious than most people (let’s not talk about the carbon footprint of our travels though). It is rare that we can make a meal together that involves meat since we are lousy with vegetarians. However, what we eat and how eco-friendly our diets actually are is a regular debate. This piece comes at the presupposition that the person reading this already has taken basic measures to be eco-friendly in their diet (i.e. not nomming on McDonalds’ reconstituted meat with a side helping of franken-fries). I am not going to talk about everything because there is frankly too much out there to discuss (and I’m not going to open a genetically modified can of worms).