By Benjamin LeBarron

A Tale of Two Critters

Some people are cat people. That’s understandable. They’re cute, they’re cuddly and they’re just adorable little balls of fuzz. Unfortunately, they’re also adorable little balls of death. Cats, specifically outdoor cats, are the scourge of ecosystems across the globe. An estimated 1–3 billion birds and 7–20 billion mammals fall prey to outdoor and feral cats each year. Now I’m sure your little Mittens would never do such a terrible thing, but the feral cats of Australia certainly will.

Some people are dog people. How couldn’t you be? They’re friendly, loyal and would never eat your neighbors’ pet swamp wallaby or brushtail possum. That is, unless it happens to be a Dingo. The Dingo is the king of the Australian outback. As apex predators they sit at the top of the food chain. …


By Emma Korntheuer

Picture your kitchen. The dried and canned goods in your cabinets, the produce in your fridge, perhaps a fruit basket perched on the counter. Imagine one day waking up and facing a reality in which one third of your food simply ceases to exist. What will you lose?

Globally, bees are responsible for 35% of our food supply, with many everyday crops relying on insect pollination to produce our fruits, vegetables, and nuts (NRCS, 2020). …


By Erica Kono

You wake up on a calm Saturday morning and look out the window. Out in the distance, you see a tree. You gaze at it vacantly, observing its leafless remains. It has been completely engulfed in water. You’re living on stilts, and the water quickly approaches year after year in the hopes to claim your home as well.

For those who live on the coast of Louisiana, this has become their chilling reality.

Image for post
Image for post
A U.S. Geological Survey map from 1932 is compared to a satellite image from 2011 to demonstrate the amount of lost land. Photo by: NOAA, https://commons.wikimedia.org/wiki/File:Land_loss_in_coastal_Louisiana_since_1932_NOAA2013.jpg

What’s happening in Louisiana?

The stars must have aligned (in a bad way) because this boot-shaped state has been hit with a multitude of problems, including subsidence (sinking land), reduced sediment replenishment, land erosion, sea-level rise, and saltwater intrusion. In the last 80 years, Louisiana has lost over 4,800 square kilometers of land. In the next 50 years, that number is expected to increase to over 10,000 square kilometers. Losing this amount of land not only affects the area’s wildlife and economy, but it also makes these areas more prone to environmental hazards, such as storm surges, floods, and weather-related events. …


By Breanna Kellogg

Image for post
Image for post
Phoenix Islands Protected Area, photo taken by Ron Van Oers https://commons.wikimedia.org/wiki/File:Phoenix_Islands_Protected_Area-114879.jpg

The Blue Paradox

In order to make effective policies for people, you have to understand how people work. Without much doubt, people respond to incentives, and environmental policymakers use these responses to implement environmental measures and construct a more positive human and ecosystem relationship. However, this incentive driven outlook can backfire when it comes to announcing a new policy. When people hear about an upcoming policy change and potential restrictions, people rush in and do as much as they can beforehand, undermining the purpose of the policy in the first place. This has been a problem that environmentalists face with the announcements of new reserves, land developments, climate change policies, and various other measures that causes much of the public to rush to extort instead of rally behind. One prominent example is with the US endangered Species Act of 1973, which saw declines in red-cockaded woodpecker habitats due to deforestation from people that didn’t want to pay the cost of land-use restrictions on their properties near these habitats once the policy was implemented. This phenomenon is coined the “green paradox”- where the anticipation of policies put in place to lessen problems created from humans are causing humans to be incentivized to make the problem even worse beforehand. …


By Mackenzie Kawahara

There are currently millions of people, many of which have never heard of or even seen a horseshoe crab in their lifetime, that have been protected by horseshoe crab blood. Commonly called the “living fossil,” horseshoe crabs have been able to survive nearly unchanged for the past 200 million years. These ancient aquatic arthropods are more closely related to scorpions and spiders than to actual crab, and they currently only have four living species in the entire world, but their numbers are in decline (Mohamad et al. 2019). As of 2019, the Indo-West Pacific horseshoe crab species, Tachypleus tridentatus (T. tridentatus), has been deemed “Endangered” on the International Union for Conservation of Nature’s (IUCN) Red List of Threatened Species (Krisfalusi-Gannon et al. …


By Emiko Inouye

Image for post
Image for post
The Meadow Pipit is among the most threatened European insect-eating species. Source: Ron Knight https://commons.wikimedia.org/wiki/File:Meadow_Pipit.jpg

Europe may be facing a shortage of a very odd, sometimes unpleasant, often unwanted good: insects.

Recent evidence suggests that insect abundance is trending downwards. While that may sound like good news on its surface, it brings trouble for the many species of birds that rely on insects as their primary food source. Species like the Common Grasshopper Warbler, Northern Wheatear, and Meadow Pipit — all of which weigh less than an ounce as adults — are European insect-eaters that are seeming to struggle to keep their populations up in recent years. …


By Meredith Honig

As Prince William, president of United for Wildlife, recently stated, “The humble pangolin…runs the risk of becoming extinct before most of us have even heard of them.”

Pangolins are the only mammal in the world completely covered in scales from head to tail. They are fully toothless, surviving primarily on termites and are thought to play an important role in insect population regulation. Even with such a distinct body of armor and diet, many people are unaware of their existence and they are highly understudied in science. …


By Logan Hamilton

Chances are that the vanilla you find in your ice cream comes from Madagascar- nearly 80% of the world’s vanilla gets produced there. Madagascar is also home to the lemurs- a group of primates that live only on Madagascar. At least, they do for now- wild habitats across the globe are being lost to human activities, and Madagascar is no exception. In fact, nearly all species of lemur are at risk of extinction thanks to habitat loss, hunting for bushmeat, and the pet trade.

But there is a silver lining- maybe it’s better to call it a vanilla lining, since vanilla plantations in Madagascar provide hope for these adorable primates. A study by Hending and colleagues showed that some lemurs can be found in vanilla plantations, suggesting that these croplands may be used in future conservation management. …


By: Colette Goodrich

Scientists found a new way to make conserving species easier, and cheaper! Many conservation scientists are concerned for endangered species. Numerous efforts are made in order to understand population sizes and interactions of endangered species so that scientists can do their best to conserve the species. One problem however, is that endangered species are not allowed to be touched or manipulated in any way that could possibly cause them stress. Scientists can now gather and record data from faeces, shells, feathers, hair and saliva that is left behind after the animal. Before, quality information could not come from such means. …


By Kevin Ha

When light brings darkness…

Light pollution’s negative consequences go beyond turning a night of stargazing into one of sheer disappointment. In fact, humans and their love for light have been known to have significant impacts on the natural world around them — and those impacts don’t just involve newly hatched turtles heading to their doom as they mistake parking lot floodlights for moonlight over the ocean. The impacts of artificial light can be felt by a whole collection of species and possibly alter the fundamental structure of how animals live.

Image for post
Image for post
Artificial light may have impacts on light-sensitive wildlife species.Above by Goguito07 @ Wikimedia Commons.

Edge effects…

As the human population expands and more people move into cities, wildlife surrounding those areas are increasingly threatened by habitat loss and the edge effects that subsequently arise. Edge effects are the impacts that neighboring cities or other developed lands have on the natural areas around them. These effects may be positive for some species that thrive on human disturbances but for most, the effects of habitat edges are negative and be detrimental to wildlife and plants. As a result, large areas of habitat near urban environments may, in reality, be occupied by animals at a much smaller scale than we would originally think. This is because otherwise suitable habitats are made unsuitable by being so close to human developments. There has been a great deal of research on how different human pressures such as roads or farmland create habitat edges, but there is a lack of understanding of the impact of artificial light at these borders. …

About

Daniel Karp

Professor in Wildlife, Fish, & Conservation Biology

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store