Showing posts with label Global Warming. Show all posts
Showing posts with label Global Warming. Show all posts

09 April 2009

Population Explosion, Kind Of

Irrawaddy Dolphin (Orcaella brevirostris), Vulnerable

In early April, the Wildlife Conservation Society announced that a population of close to 6000 Irawaddy Dolphins has been discovered in Bangladesh. Before the discovery of the populations in Bangladesh, only a few small pockets of dolphins were known, most numbering less than 150. In short, the dolphins from Bangladesh have increased the known population more than six times.

Brian Smith, who led the study, expressed optimism for the future of the Irrawaddy Dolphin, but cautioned that the many threats still exist, including entanglement in fishing nets, declining freshwater supplies, and climate change.

The Wildlife Conservation Society is working with Bangladeshi officials to create a sanctuary for the dolphins in the mangrove forests where they live.

Keep your fingers crossed if you want to help the Irrawaddy Dolphin. Or you can take action and send an email to your Congressperson (if you live in the US), or support the WCS in their mission of Saving Wildlife.

Thanks to Colie for sharing the news.

02 March 2009

Pass the Olives Please

Olive Ridley Turtle (Lepidochelys olivacea), Vulnerable

Thousands of dead Olive Ridley Turtles wash up on the east coast of India every year, victims of shrimp trawlers, and fishing vessels using long-lines, and purse-seine and gill nets. Classified as Vulnerable (or in other terms, Nearly Endangered) by the IUCN, these turtles are also facing habitat degradation, over-harvesting of eggs and adults, and the impacts of global warming.

Many, though not all, Olive Ridleys nest in what are known as arribadas. An arribada (the Spanish word for arrival), is a mass breeding event, in which thousands of turtles leave the ocean at the same time to breed and lay eggs in sandy nests. One of the largest arribada sites is located near the mouth of the Dhamra River on the East coast of India, in the province of Orissa.

Currently, the construction of a port is in the works, very near the site of the arribada. The company carrying out the construction is a joint venture between Tata Steel and Larsen and Toubro Ltd., two Indian companies. Set to open in 2010, the port has met resistance from environmental groups concerned about the impacts of shipping traffic and the port construction on the turtles breeding grounds.

Check out a map of the proposed port site and the turtle breeding grounds here.

Although the joint company has conducted an Enviroment Impact Analysis, allegations have been made that it is inadequate and does not take into account all relevant factors. Though the company has partnered with the IUCN to "minimize and mitigate the impacts" of the development, many believe the most effective solution for the protection of the turtles is the relocation of the proposed port.

One of the biggest concerns is an increase in artificial lighting. Both nesting females and newly hatched turtles use light as a cue--the ocean is naturally brighter than land. Artificial lighting disorients many turtles, causing them to head inland rather than towards the sea. The increased industrialization that will undoubtedly occur in the area is another concern, bringing higher levels of pollution, disrupting the local marine ecosystem.

Check out the Wild Foundation, working to prevent the construction of the port.

Write a letter protesting the construction of the port.

Read about the companies environmental policies, and their defense of the port.

31 December 2007

Love 'em or Lose 'em

Being in love makes everything look different. Suddenly, doing the dishes, which used to be a chore, turns into an act of gratitude. A kiss becomes not just an exchange of physical pleasure, but a deep communication of affection and desire. A trip to the shopping mall is no longer an item on the to-do-list, but an opportunity to shower the loved one with gifts.

Loving is a great act of unselfishness, and sometimes unselfishness means sacrificing to make the loved one happy.

The world, right now, needs some love.

More specifically, the frogs, toads, and other amphibians of the world, need some love. They're desperate for love. In fact, if they don't get some love soon, they'll die. From agricultural pollutants, from invasive species, from poaching and hunting, from deadly disease, and climate change. Without some love, thousands of species of amphibians will be extinct, before my yet-to-be-born children ever have a chance to meet them, or get to know them.

In the past decade or so, over a hundred amphibians have become extinct. About 3000 more are in danger of disappearing. Amphibians are a vital link in ecosystems around the world, and as they disappear, those ecosystems will begin to crumble. And as they disappear, so will the medical cures that they hold. Cures that are the key to saving the lives of people we love.

All of this lack of love is not because amphibians are unlovable, or because people don't want to love them. It's just that sometimes we're not very good at knowing how to show our love. Sometimes we bring flowers, when a back rub would have been more appropriate. Sometimes we try to say the right words, when we should have just listened.

So how do you love a frog? 2008 has been designated the Year of the Frog (YOTF), and it's purpose is to show the amphibians of the world that they are loved, and to show people how to love them. The Amphibian Ark, a collaboration between conservation organizations, is leading the effort, and will be promoting frog conservation around the globe. Their plan is to work with zoos, botanical gardens, museums, universities, or anyone else that is able, to house the most endangered species, until the extinction crisis can be averted. The eventual goal, of course, is to return the species to the wild.

So. This year, 2008, love a frog. Get involved. Tell your friends. Volunteer. Live greener. Sign the petition. Learn more. Donate. Love.

27 November 2007

An Absence of Amphibians

Old pond
and a frog-jump-in
water-sound

This famous haiku by the Japanese poet Bashô evokes images of an evening filled with the chorus of croaking frogs and splashes as they leap into an old pond. Unfortunately, unnoticed by the majority of the world's population, frogs around the world are falling silent. As various threats to their survival converge, like ants on a fallen bread crust, amphibian species in every nation are facing extinction. Threats such as habitat loss and fragmentation, climate change, pollution, and invasive species are stacking themselves up against amphibian populations. To top it all off, the deadly chytrid fungus, perhaps helped along by global warming, is devastating amphibians everywhere. Chytridiomycosis, the disease caused by the fungus, causes a problem in the functioning of the amphibian's pores, making it difficult for them to absorb water. Without the ability to rehydrate, they soon die from a lack of water.

Now, scientists around the world are working together in an effort to save the amphibians from impending doom. Amphibian Ark, a collaboration between several conservation organizations, is asking zoos and botanical gardens around the world to create a safe haven for a species of amphibian. These havens would only be temporary, until the disease crisis has been averted, and the animals can be safely returned to their natural habitats. If their efforts are unsuccessful, I don't want to imagine what will happen to the balance of the world's ecosystems as a whole class of animals is wiped out.

This issue is not something to be taken lightly. It's downright scary when you think of the implications of what could happen if all of the frogs, toads, and other amphibians disappeared. Frog Matters, a blog with the latest happenings from Amphibian Ark has a great post on things that anyone can do to help prevent a mass extinction.

Donate now to help prevent the next great extinction.

20 February 2007

Frozen frogs may not stay frozen

Wood Frog (Rana sylvatica)

This species of frog, while not endangered, may soon be threatened by rising global temperatures. It's blood and physiology allow it to undergo multiple freeze-thaw cycles. When it get's too cold, the frogs simply freeze in place, their heart and lungs stop, and they turn into a literal ice cube. Once it warms up again, their hearts start pumping and they resume hopping around. Freezing during the winter helps the frogs by eliminating their need for food for those long months when none is to be had. With warmer temperatures around the corner, these frogs may find it difficult to survive the barren winter unfrozen.

Read about the mechanism frogs use to survive the freeze-thaw cycle, and how scientists hope it can benefit humans. An older article from National Geographic about frogs and Global Warming in general.