Showing posts with label conservation. Show all posts
Showing posts with label conservation. Show all posts

Monday, December 3, 2018

Hot Spots in Ecology

  • Biodiversity
    Some ecologists claim that biodiversity has decreased in most of the Earth's land area past "safe limits." This "safe limit" supposedly marks the point at which ecosystems could no longer support human civilization. Critics say the limit—set by the Planetary Boundaries framework—is based on many assumptions, does not take into account the influence of invasive species, and could not easily take into account the complex interactions between species. (See "Earth's Biodiversity Has Fallen Below 'Safe' Levels? Ecologists Disagree.")
  • Saving Endangered Species
    The earth goes through cycles of heating and cooling, and species evolve and go extinct along with it. Most ecologists agree that we are currently going through an extreme, human-caused version of those historical extinction periods and should do what we can to save species from extinction. A few, even if they believe this mass extinction is human-caused, claim that it's pointless to go out our way to save endangered species; we should only worry about the extinction of our own species, and only save other species if it's convenient. (See "What is the point of saving endangered species?" and "We don't need to save endangered species. Extinction is part of evolution.")
  • Journal Impact Factor
    Researchers often choose which scientific journal to submit their work to based on Journal Impact Factor (JIF), a value given to a journal based on its perceived quality. Libraries have also used it to choose which journals to subscribe to. JIF is probably the most prevalent rating system for journals, but many ecologists and other scientists criticize it for misrepresenting the quality of journals and articles. (See "The Journal Impact Factor and alternatives.")
Of these three controversies, I am most intrigued and emotionally affected by the second. I am a proponent for saving animal species; I love animals, and for as long as I can remember I've been taught that we need to save endangered species. All species contribute in some way to their ecosystem, and the loss of one can cause a drastic change. Additionally, myriad species are endangered because of habitat loss inflicted by humans. However, it is interesting to read anti-conservationist arguments from biologists. I can see where some of their claims make sense, which is surprising for me. Maybe what it comes down to is focusing on efforts that will best conserve the human species?

Hot Spots in Ecology


  • Invasive Species:

Burmese pythons are capable of reaching 23 ft.
in length and weighing up to 200lbs. Some of
them get to be as thick as telephone poles.
One of the hazards of living in a global community is the inadvertent exchange of organisms. Invasive species are not a new problem. They've been an issue since ships started sailing to new waters and bringing back foreign mussels. The fact remains, however, that allowing an organism to enter an environment where it doesn't have any natural predators upends the native ecosystem. This has been a problem for a long time in the Everglades with the Burmese python, but it looks like thing might be getting worse. No one knows how to stop them, and no one knows how much they'll affect the ecosystem. See: Giant hybrid pythons in Florida


  • Conservation:

Photo by Michael LaRosa on Unsplash
Ecosystems all over the world have been disrupted by human development. Some of them irreparably so, but others can be salvaged. The mission of many ecologists is to preserve as much as possible and to restore what they can. "Rewilding" natural predators is a technique being used with marginal success in Yellowstone National park, where the reintroduction of the gray wolf has resulted in an ecological rebirth for the area. Adding large predators back into their native ecosystems has its problems- it causes tension with their human neighbors, and in most cases, the animals are unable to re-adapt to the wild. See: 'Rewilding' Missing Carnivores

  • Climate Change:
Possibly the hottest topic of them all, climate change is hotly debated in this country, the split between believers and unbelievers often mimicking party lines. If our actions are effecting the environment, then we need to act fast and act now. If not, there's nothing to worry about. But there is something to worry about. The vast majority of ecologists and climate scientists agree that uncharacteristic changes are happening at alarming and unnatural rates, and we are the driving cause of that. If concern for the climate wasn't politicized, it would be so much easier to try to save a dying world. See: Trump's EPA chief on the Climate Report

This last one is the most concerning for me. All of the data that I have come across is clear, concise, and speaks for itself. Our world is suffering, and it is in our power to do something about it. The biggest problem is the way the data points are communicated. Their either put across as too threatening by those who agree, or too dismissively by those who dissent. There has to be a more moderate, less rhetorically and politically charged way to address this issue. I've got to believe that there is.