For years beavers were routinely trapped and shot and their dams destroyed. But these days, beavers are getting new respect as they are finally being recognized as nature’s engineers. In fact, across the West, they are being welcomed into the landscape as a defense against the withering effects of climate change. Beaver dams, it turns out, have beneficial effects that can’t easily be replicated in other ways. They raise the water table alongside a stream, aiding the growth of trees and plants that stabilize the banks and prevent erosion. They improve fish and wildlife habitat and promote new, rich soil.
Join us tonight as we welcome Dr. Thomas and learn just how busy and beneficial beavers really are!
Flying squirrels on Long Island? You betcha! Due to this squirrel’s strictly nocturnal habits, most Long Islanders are oblivious to this tiny animal’s existence, even right in their own backyards. The species found on Long Island is the Southern Flying Squirrel, cousin to the much larger, much better known Eastern Grey Squirrel. With huge eyes (the better to see with) and super long whiskers (the better to navigate with), these diminutive critters don’t actually fly, but glide. Join us tonight as Mike discusses the natural history of Long Island’s Southern Flying Squirrel and their amazing adaptations.
For centuries, the mysterious nighttime lives and uncanny hunting skills of owls have made them fascinating hallmarks of children's stories and folk tales the world over. But what actually makes owls so special? Bird trainers Lloyd and Rose Buck and their very special amily of owls, eagles, falcons, geese, pigeons, and two newly-hatched barn owls Luna and Lily - provide a rare opportunity to learn more about these unique birds. Using the latest in camera technology, computer graphics, x-rays and super-sensitive microphones, we can take a brand new look at owls in more detail than ever before. The real stories behind how they hunt, how their vision and hearing works, and how they fly so silently are influencing 21st century technology and design.
Join us tonight for our annual Documentary Night. Please note film begins at 7:00pm sharp. If weather permits, we will end the evening with an owl prowl behind the library
Message from the HOBAS President Stella Miller
Bats Are Cool!
At Huntington-Oyster Bay Audubon, we work to protect wildlife and preserve habitat. We do this through conservation action, advocacy, education and awareness. Awareness is an important component of conservation because in order to bring about action, one first must be aware of the issue. An informed mind leads to compassion which in turn inspires action. In addition to a lack of knowledge on the part of humans, many animals are misunderstood or maligned without reason due to myths and misinformation. One animal that has received a bum rap is the bat. When it comes to these flying mammals, the myths are never ending: bats are blind, riddled with deadly diseases, dangerous, scary and let’s not forget the old wives tale about bats becoming entangled in people’s hair. Luckily for bats, more people are becoming aware of how important they are to our ecosystems, our economies and our health. I hope to dispel some of the myths here and guide you into looking upon bats a little more kindly. Even if you do not grow to love bats (as I do), there are very good reasons to respect them.
Bats can be found all over the world, except for polar regions. They belong to the order Chiroptera, the second largest order of mammals in the world (rodents being the largest). Over 20% of mammals worldwide are bats and they are the only mammals that are capable of true powered flight over sustained distances. Other “flying” mammals, such as the flying squirrel do not actually fly, they simply glide. Bats range in size from the larger megabats which include the flying fox, found in Indonesia, with a six foot wing span (and weighing over 2 pounds) to the small microbats such as the diminutive Kitti’s hog- nosed bat, weighing a mere 2 grams and measuring up to 1.3” in length. Up to 70% of bat species are insectivores, while the remaining species feast on a diverse diet that includes nectar, pollen, small fish and mammals, fruit and in the case of the well-known vampire bat, the blood of mammals (just as aside, vampires do not suck blood. They lap it up. Doesn’t that sound much more refined to the squeamish.)
Bats hunt by using echolocation, which is the use of sound waves and echoes to determine the location of objects. To do this, they send out sound waves from their nose or mouth. As the sound waves hits an object it will produce and echo which bounces back to the bat’s ears. Bats are able to determine the location, size and shape of an object from these echoes.
So, what can bats do for us? One service they provide is pest control. Insectivore bats consume nocturnal insects and a single little brown bat, found here on Long Island, can devour more than 1,000 mosquito sized insects in just one hour, positioning them as critical crusaders in the battle against insect pests. This free service provided by bats is worth billions dollars each year (A recent study found that the value of bats’ pest-control services in the United States ranges from $3.7 billion to $53 billion per year). Without bats our demand for chemical pesticides would increase tremendously, affecting our economies, and putting human health at risk, as well as our ecosystems.
In addition to controlling insects, many bats are important pollinators. As a keystone species (a plant or animal that plays a critical and unique role in an ecosystem), bats are essential to many ecosystems. In the tropics, up to 500 plant species depend on bats for seed dispersal and pollination. This relationship is a priceless one as these plants provide us with more than 450 economically valuable products which are valued in the hundreds of millions of dollars. Rain forests and agricultural plants such as bananas, mangoes, dates and cashews rely on bats. Saguaro cacti in the Sonoran desert of Mexico and the Southwestern US are incapable of self-fertilization and are dependent upon the lesser long-nosed bat, which pollinates this plant and is key to the entire Sonoran ecosystem.
Do you like a nice margarita on a Friday night? If you do, please thank a bat. Tequila is produced from the agave plant which is highly dependent upon bat pollination and seed dispersal. Perhaps tequila producers ought to jump into the public relations arena in order to bring about awareness of the critical role bats play in our lives!
In addition, guano, aka bat droppings, are a popular fertilizer and also support entire ecosystems within the caves that bats dwell. Finally, an anticoagulant from vampire bat saliva is being tested as potential medicine to treat stroke victims. As for rabies, only about 1% of bats will contract rabies, a disease that most mammals are susceptible to. As long as you don’t handle bats, your chances of contracting this disease are next to nil. Remember, any animal will bite in self-defense, and bats are no exception. And let’s put one well-worn myth to bed: bats do not become entangled in our hair. That one is just utter nonsense.
As you can see, bats are pretty neat, and pretty important to us. But unfortunately, bats are in trouble. Since 2006 an estimated 6.7 million bats have perished from an insidious disease known as White-Nosed Syndrome (“WNS”), a fungus that appears to have been introduced to North America from Europe (interestingly, bats in Europe seem to have developed an immunity to the disease). Discovered in New York in 2006, this epidemic is considered the worst outbreak of any type of wildlife disease in North American history and it has left entire colonies completely wiped out. In hibernating bats WNS affects the skin of bats, including the wings, causing them to wake up frequently during the winter, eating up precious fat reserves and energy. These bats often have white fuzz around their muzzles, giving the fungus its name. Sadly, 70 to 90% of bats (and in some cases 100%) in an affected hibernation area will be killed once WNS invades their sanctuary. To date, scientists, biologists and universities are seeking out the means to control this deadly disease as it spreads westward.
Another threat facing bats are wind turbines. Surprisingly, bats are impacted more often than birds by turbines and its estimated that tens of thousands perish each year. While alternative energy is critical to our future, it is just as critical that those planning wind facility sites collaborate with conservation organizations so that wildlife and habitat is not negatively impacted. We share our world with wildlife and we must remember this and be mindful and respectful of this.
The bottom line is this: bats are beneficial to our health, economies and ecosystems. But they are in trouble and need our help. It is time that people understood just how much we depend on bats and how devastating it would be should we lose them. For more information about bats, including some super cool facts and what you can do to help, please visit our website at http://www.hobaudubon.org/bats.asp. Here you will find fact sheets, links and a very cute video put together by school children in Indiana!