This magic number was stated in that flawed entomofauna paper, without any explanation of how this number was calculated – see why that paper is flawed here.
Since then, it has been stated regularly in popular media, scientific papers and technical reports, often without citation, just a number pulled out of the air and presented as fact.
Globally, there are about 5 million estimated insect species in total. Only 1 million species have scientific names. So, conservatively, the 40% claim suggests that at least 400,000 species are threatened with extinction.
So is it an accurate prediction? No. Here’s why: Continue reading
As the end of 2019 approached, I had planned to write one of my usual New Year posts here, something about my top posts and the best papers I read last year.
But as January approached, the escalating crisis we are currently experiencing made all of that seem frivolous and pointless.
I’m an optimist and I don’t like to dwell on despair. But this climate crisis ravaging our beautiful country is too critical to ignore. This post is more personal than usual – I’ll write something about insects and ecosystem services when I have time to get my thoughts together. Continue reading
Our insect apocalypse paper is finally published online at BioScience, with awesome co-authors Jasmine Janes and James O’Hanlon!
We summarise the major flaws in the pop culture ‘insect apocalypse’ narrative and argue that focusing on a hyped global apocalypse narrative distracts us from the more important insect conservation issues that we can tackle right now. Promoting this narrative as fact also sends the wrong message about how science works, and could have huge impacts on public understanding of science.
And, frankly, it’s just depressing. Right now, we all need hope, optimism and reasons to act, not a reason to give up.
This blog isn’t about the paper, you can read it yourself (journal, preprint, or email me for a copy). This is about why we wrote the paper. Continue reading
When I grew up, I was taught that politics and religion were taboo subjects in social situations, sometimes even among close family. I liked to believe this social code came from a well-meaning place…the idea that we shouldn’t judge people on their personal beliefs. But I suspect it was more of a survival mechanism, evolved over generations of bloody wars that started because of political gripes and religious persecution.
As a scientist on social media I’ve often been told that I should only comment on things I have expertise in, things I actually work on. And I shouldn’t ‘get political’.
Sure, I don’t publicly comment on scientific disciplines I have no experience in. Even within ecology, I rarely comment on animals or systems I don’t work with regularly. And fair enough too. I get really frustrated when scientists without insect expertise make inaccurate public comments about insects, or when ecologists who don’t work on ecosystem services science publicly claim the concept is flawed. Continue reading
I’ve read two new papers this week that got me thinking about how and why we define ourselves as researchers.
One was this excellent paper led by Brian McGill on why macroecology and macroevolution, once essentially part of a single discipline, need to reconverge as they both have complementary goals. As the authors note, macroecology tends to focus on spatial processes, while macroevolution tends to focus on temporal processes. In reality, both types of processes are linked across scales and influence each other. To address fundamental questions about biodiversity and ecosystem function, we need to consider both together.
This segregation across related disciplines is a real problem that we need to address – we’ve seen it with agricultural science and ecology, freshwater & terrestrial ecology and more… Continue reading
I’ve seen and heard a few claims circulating that removing meat from your diet is essential to ‘save the bees’. This is misleading and draws a long bow between lots of random correlations to promote a particular agenda.
Sure, intensive meat production contributes to some big environmental problems and there are plenty of reasons to reduce your meat consumption. But there is absolutely no scientific evidence to support claims that eating meat is bad for bees.
Meat comes in many forms. From wild game to highly-processed ‘meat products’, from large-scale intensive feedlots to diversified low-intensity grazing systems, from locally-produced to high food miles. It is generally impossible to make blanket statements about all meat. Continue reading
(This is the accepted version of my review published here in Trends in Ecology & Evolution.)
It is an unfortunate paradox that insects, the most abundant and diverse class of animals on Earth, are also the most understudied and misunderstood. With diversity comes complexity, and scientists have only scratched the surface on knowledge of global insect ecology. In The Last Butterflies, ecologist and butterfly expert Nick Haddad explores some of this complexity.
Despite the title, this is not a story of despair. Nor is it just about butterflies. Haddad weaves an absorbing narrative about the multidimensional process of science and insect conservation, the damaging impacts humans can have on the web of life, the ethical quandaries of conservation, and the positive changes and solutions that give us hope. Each main chapter is focused on a single butterfly species: six of the rarest North American butterflies that Haddad has spent his career studying, and two more well-known species from North America and the UK. The eight butterflies are framing devices, each one illustrating pieces of the challenging puzzle that is insect ecology and conservation. Continue reading