by Rosa Albanese, Watershed Stewards Project Member
When I was asked to organize the 2014 Frog Docent Program at MMWD to get people on board with protecting Mt. Tam’s very own foothill yellow-legged frog (Rana boylii), I was excited because, simply put, frogs are really cool and definitely worth saving. Here are just a few reasons why:
- They are one of earth’s best indicator species. Their ability to breathe through their skin and their reliance on clean water and clean habitat free of toxics and pollutants means that they are extremely sensitive to changes in the environment. It should be a warning sign to all that if frogs are not doing well, then something is wrong.
- They serve as a critical part of the food web. Not only do frogs provide a meal to other animals like fish, birds, dragonflies, beetles, and snakes, frogs also prey upon insects such as mosquitoes, which may be vectors for nasty pathogens such as West Nile virus and heartworm.
- They provide medical researchers with the potential to improve human health. Many pharmaceuticals used to save millions of lives have come from the skin secretions of some very special frog species. Some examples include medicines that help block HIV transmissions, reduce high blood pressure, and treat antibiotic-resistant staph infections.
The sad part is that on a global scale one-third of the world’s amphibian population is diminishing. On a local scale it is just as depressing. The foothill yellow-legged frog population has disappeared from more than 45% of its historic range in California and Oregon, in part due to habitat loss, pesticide use, introduction of exotic predators, disease, water impoundments, logging, mining, and grazing in riparian zones. Kermit was right when he said, “It’s not easy being green.” The current drought conditions are certainly not making matters any better for wildlife. All is not lost, however. There are many things you can do to give frogs a break and make it easier for them to survive and reproduce.
Here are just a few:
- Conserve water: Clean, cool water is a precious resource and should be conserved at all times but especially during a drought. Simple graywater systems can be implemented around your home; some are as easy as using a bucket to catch water from your sink or tub to flush the toilet!
- Avoid pesticides: They end up in waterways and harm amphibians. Don’t use them around your home and don’t support them by purchasing fruits and vegetables that are sprayed with them. There have been several examples showing declines in frog populations near agricultural areas and fatal mutations in frogs exposed to herbicides or pesticides.
- Reduce, reuse, and recycle! Do these in that order and not only will your wallet thank you but the planet will, too.
- Volunteer to become a frog docent at the water district. Spend a few weekends at Little Carson Falls, a popular hiking destination, informing visitors about the frogs’ plight and keeping foot traffic out of the frogs’ sensitive breeding habitat. The training will be held Saturday, February 22, from 9:00 a.m. to 2:30 p.m. For more information and to reserve a spot, contact firstname.lastname@example.org or call 945-1128.