Whilst Island Biogeography Theory originally led many to believe that larger, more connected patches of habitat are more important for species conservation, new research suggests that overlooking smaller patches could be dangerous (Image Credit: LuxTonnerre, CC BY 2.0, Image Cropped)
Global synthesis of conservation studies reveals the importance of small habitat patches for biodiversity (2019) Wintle et al., PNAS, https://doi.org/10.1073/pnas.1813051115
Human land use over the past millenia has divided species habitats into smaller and smaller patches – a practice which often leaves conservationists with the tough choice of which remaining patches they should focus their efforts on. Traditional practice has seen the prioritisation of large patches that are well connected to other, with this preference often meaning that smaller more isolated patches are neglected, and often cleared.
This week’s paper authors wanted to check whether this was really the best way of doing things, by looking at the relative conservation value of a variety of habitat patches.
Kiftsgate Court Garden: The Wild Garden 1. An example of a “wild garden” in the UK, where the plants have been left to grow (Image Credit: Michael Garlick, CC BY-SA 2.0, Image Cropped)
How do you make your garden more biodiversity-friendly? During my time at the Futurum exhibition at The Big Challenge Science Festival, I spent a lot of time talking to people who expressed a desire to be manage their gardens for more plants and animals, but were unsure where to start. So I’ve compiled a brief guide on what to do, and it’s your lucky day – it involves not doing anything.
Recent reports of collapses in insect populations were eagerly devoured online. But were the reports exaggerations, and if so, how did they make it into the headlines? (Image Credit: Barta IV, CC BY 2.0, Image Cropped)
Two weeks ago, an article on the Insect Apocalypse hit my Facebook feed. It popped up everywhere. People seemed genuinely concerned about the plight of the world’s insects, which was a first for me.
An hour later I was sitting at a conference seminar in which the speaker bemoaned the poor data that had contributed to the key statistic in the article: that biomass of flying insects had decreased by 75% over the last 27 years. The methods used in the report apparently show huge bias towards large bodied species, which may have exaggerated the findings significantly. So here lies our quandary. Read more