Polyps of Schuchertinia allmanii. (Image Credit: Luis Martell, CC BY 4.0, Image cropped)
Earth is a fountain of incredible abundances and varieties of life-forms, with many of them still undiscovered. Biodiversity is a key pillar for our life as we know it, and we are not only a small fraction of it, but also use and harness this richness for the benefit of our own species’ advancement. Many human advances are based on other organisms’ attributes and talents, which is why we use certain species as “model organisms” when pioneering scientific breakthroughs. One example of such a specific form of life has helped us make some serious inroads into forms of regeneration and even immortality over the last few billion years ago, and leading us to great discoveries in science.
Whilst it might seem like little guys like this don’t have much to smile about these days, being optimistic about the state of the environment is more important than ever, according to Nancy Knowlton (Image Credit: Rosalyn Davis, CC BY-NC-SA 2.0, Image Cropped)
At the very beginning of my PhD, I was in the audience at the STARMUS Festival when American reef biologist Nancy Knowlton gave a talk about Earth Optimism. It came just after the American President had withdrawn his support for the Paris climate agreement, and smiles regarding the state of the planet were hard to come by. So seeing an esteemed member of the scientific community give a reminder that there was hope for one of the earth’s most vulnerable ecosystem was inspiring.
At this year’s International Barcode of Life Conference in Trondheim, I had the chance to sit down with Nancy and talk about why optimism is so important in the face of the many ongoing problems that the planet faces.
Salmon aquaculture nets near Hitra, Norway. (Image credit: Peter Anthony Frank, NTNU, CC BY 2.0)
The Norwegian Aquaculture Review Council is an academic collective comprised of NTNU students Danielle Hallé, Myranda O’Shea, Bastian Poppe, Emmanual Eicholz and Peter Anthony Frank.
With so much attention on climate change and biodiversity in the media today, it is hard not to be skeptical as to whether companies are taking advantage of these paradigms for their own profit by “greenwashing” their products. Greenwashing is the common term for the practice whereby an organization presents information that gives them an air of environmental responsibility but makes no real contribution to reducing the impacts of threats like climate change, pollution, loss of biodiversity.
Image Credit: AntTree, CC-BY-NC-ND 2.0
Can you help ease the global biodiversity crisis through the choices you make at your local fish market? A recent report by US-based nonprofit Eating with the Ecosystem suggests that the answer is a resounding “Yes!”
The red lionfish, an aggressive, fecund, and competitive species invasive to the Atlantic Ocean (Image Credit: Alexander Vasenin, CC BY-SA 3.0, Image Cropped).
The genomics of invasion: characterization of red lionfish (Pterois volitans) populations from the native and introduced ranges (2019) Burford Reiskind et al., Biological Invasions, https://doi.org/10.1007/s10530-019-01992-0(0123456789
Invasive species are one of the most destructive forces and largest threats to native ecosystems, second only to habitat loss. The “how” and “when” of a species invading new habitats is obviously important, and as such many studies focus on if invasive species are present and if they are spreading. Yet these studies often disregard the mechanisms behind why a species is spreading or succeeding in these new environments. The mechanisms are important here, because by and large most invasive organisms will have very small populations sizes, leaving them vulnerable to stochastic events like environmental flux, disease, and inbreeding depression.
Two key paradoxes of invasive species are that these small groups of invasive organisms tend to not only have more genetic diversity than the native species (making them more adaptable to environmental change), but they are also able to outcompete the native organisms, despite having evolved in and adapted to what may be a completely different environment. The authors of this study used genomic approaches to address and try to understand these paradoxes. Read more
Miscommunication concerning ecosystems like the Great Barrier Reef can be extremely harmful to their future. I recently encountered a frustrating example of such misinformation. (Image Credit: Workfortravel, CC BY-SA 4.0, Image Cropped)
Scientific communication is at the forefront of what we do here at Ecology for the Masses. We like to celebrate good examples of SciComm whenever we can. But every now and then it’s misused so overtly that you have to talk about it. So today I want to share a recent example of scientific communication that confused and worried me.
Image Credit: Sam Perrin, CC BY-SA 2.0, Image Cropped
As a fish ecologist living in Norway, it’s a joy to be able to travel to Melbourne and interact with the people that are driving forward fish science in my home country. So when I found out that the Australian Society of Fish Biology’s annual conference was taking place 3 days after my first flight home since 2016, I knew it was an opportunity I couldn’t pass up.
We’re on the last day of the conference at the moment, and over the next 2 months I’m looking forward to bringing you a number of insights, including interviews with guest speakers Eva Plaganyi and Gretta Pecl and pioneers of intriguing projects like Peter Unmack and Jarod Lyon. I’ll also have a fish edition of The Changing Face of Ecology, and some articles on how the angling community and the fish science community interact in a country with one of the most unique fish assemblages in the world.
Species richness is much higher in waters near the equator, but do we see that in a phylogenetic tree? (Image Credit: Rich Brooks, CC BY 2.0)
An inverse latitudinal gradient in speciation rate for marine fishes (2018) Rabosky et al., Nature doi:10.1038/s41586-018-0273-1
The tropical regions of the Earth are the most species-rich and diverse ecosystems on the planet, with this diversity and species-richness declining as you move further and further from the equator. One hypothesis explaining this is that speciation rates are simply higher in the tropics, meaning that more species are evolving in a given time in the tropics than anywhere else. To test for this, the authors used the largest phylogenetic tree available and analyzed speciation rates (how many new species evolve from older species) per million years.
Image Credit: Michelle Pemberton, The Children’s Museum of Indianapolis, CC BY-SA 3.0, Image Cropped
“… a red army of monster crustaceans – marshaled by Soviet-era leaders – is threatening to invade Western Europe …”
– James Owen, National Geographic, 2004
Ominous. That’s the thing, isn’t it. Some invasive species look harmless. You can’t be scared of a baby Canada Goose, can you? Or a nice purple garden flower. Such florescence. You can, however, be scared of a spiny, alien-looking 10 kilo mass of spines and pincers that has been shuffling its way into Norwegian waters over the last half-century.
Image Credit: Wibowo Djatmiko, CC BY-SA 3.0, Image Cropped
Almost a year ago, the current President of the United States pulled out of the Paris climate agreement. At that point, the scientific community, climate change activists, and anyone with a passing interest in science (and, you know, the survival of our species) could have been forgiven for thinking that we had finally forsaken our planet. Yet at the STARMUS Festival last year in Trondheim, I was particularly struck by American coral reef biologist Nancy Knowlton’s words on Earth Optimism, and why all may not be lost just yet.