Wednesday, October 23, 2019

Animals That are Scary Good for Nature

By: Macey VanDenMeerendonk

The weather is changing in Wisconsin and the leaves are starting to fall. With Halloween right around the corner, the decorations of scary animals like spiders, bats, wolves, crows, and ravens are appearing around neighborhoods and stores. Giant spiders hanging on houses with fake spider webs caught in the front yard's trees and bushes, plastic bats hanging from the ceiling, pictures of crows and ravens guarding tombstones can all be seen down every street. Movies with werewolves and graveyards and creepy crawlies on TV networks that are meant to give people a fright. While these iconic creatures scare and creep during this spooky season, they serve a greater purpose that nature benefits from.

Fishing Spider
Photo by: Mark Musselman,
National Audubon Society
While spiders make most people paranoid and grossed out, they are big help with pest control. According to Rove Pest Control, Mike MacDonald wrote, Spiders eat other spiders and pests such as flies, moths, centipedes, fleas, and even cockroaches. 
They are a natural pest control solution for organic crops which helps reduce famine and food shortages." They may look scary and with some being harmful to humans, they have been given a bad reputation. They contribute to the health and safety of the food the world produces to feed the people in it. Next time you see one hanging out in a corner of your house, don't squish it in a napkin, instead capture it and let it go outside!

Little Brown Bats
Photo by: John and Karen Hollingsworth,
USFWS
Bats have a mysterious persona and tend to be misunderstood because of it. The way they hang upside down, that they have beady eyes and big ears, and their nocturnal lifestyle adds to the spooky character they're cast as in October. There are seven to eight types of bats in Wisconsin. In a document published by the Wisconsin DNR, the Little Brown, Big Brown, Eastern Pipistrelle, Northern Long-Eared, and Indiana bats are classified as cave bats. The Silver-Haired, Eastern Red, and Hoary bats are classified as tree bats. According to Wisconsin Bat Program, "bats are important consumers for agricultural, forestry and human pest insects. It is estimated that bats in Wisconsin save farmers up to $658 million every year in the form of pest control services." Like spiders, they are helping hands in protecting human food sources. The Wisconsin Department of Natural Resources wrote on their website that worldwide, bats are pollinators and seed-dispensers for many plants. The Wisconsin DNR says, "Bats in Wisconsin are insectivorous and are major predators of night-flying insects. A single bat can consume up to 1,000 mosquito-sized insects in an hour and a pregnant female can consume her weight in insects every night."
 They are active in helping wildlife  while helping to control pest populations. Bat populations have been threatened with a disease called White-nose Syndrome (WNS). According to the Wisconsin DNR, "The disease is a fungus that was discovered growing on the muzzles and wings of hibernating bats. As the fungus spreads, it leaves a massive number of dead bats: up to 99 percent of bats can die in an infected hibernaculum." The Wisconsin DNR bat program has been inventorying and monitoring bat populations across the state to help stop the spread, study the disease and possible treatments for it, and helps further education of WNS. 
Gray Wolves
Photo by: Scott Flaherty,
USFWS

The classic howl of a wolf in front of a big, bright full moon is a common image associated with these animals. Movies and children's stories turn these wild canines into menacing werewolves that are vicious and mythically exciting. While fantasy transforms them into something harmful, they are important to the circle of life in nature. According to Defenders of Wildlife, wolves play a key role in keeping ecosystems healthy and balanced. They said, "They help keep deer and elk populations in check, which can benefit many other plant and animal species. The carcasses of their prey also help to redistribute nutrients and provide food for other wildlife species, like grizzly bears and scavengers." An article by Wolf Country says that wolves hunt the sick, weak, old, and injured prey animals like elk, deer, moose, and caribou to help those populations remain strong so they don't swelter. "The wolf helps keep them healthy by ensuring the breeding of the strong," the article states. Wolves are powerful and intimidating animals who do a lot to sustain wildlife.

American Crow
Photo by: Picasa
Crows and Ravens have a bad reputation this time of year. Like a black cat, they are thought to be a bad omen if you come across them. While their calls and the flocks of them that hang out in branchy trees can be uneasy to hear and see, they happen to be very intelligent animals. Nature Mentoring said, "There’s evidence to suggest that Ravens are better at pure intelligence-based problem solving, while Crows perform better when there’s a social element to the task (like facial recognition, and deciding who to trust)." Try to stay on these birds' good side because they'll remember who you are, they're that smart. 

Common Raven
Photo by: Piotr Krzeslak



Bad reputations may give this season it's spooky and creepy theme for the people who enjoy a good scare, but it's necessary to know the importance of these animals. Their contributions to the greater good for wildlife should be protected by humans while being appreciated for their spooky and haunting characteristics. So is you happen to see one of these animals in the wild, try not to be frightened.  Instead, remember all the great things they do for the environment.  


Have a Happy Halloween from your friends at BCR! 


Wednesday, September 18, 2019

Monarchs Ready to Take Flight!



 
Volunteers helping in the tagging
process before monarchs start to migrate.
The Butterfly House, a summer fan favorite here at Beaver Creek Reserve, has now come to a close, which means the Monarchs are getting ready to make the long journey south. Each year at the start of migration our naturalist staff and volunteers help tag monarchs. 

Between two tagging periods on August 29 and September 4, 200 monarchs were tagged. Any monarchs still hanging around from the butterfly house will be tagged and released. If you're still seeing monarchs in the area they are moving south from farther north to stop and rest.
Naturalist, Jim Schwiebert, on
top of the butterfly house gazebo
to reach butterflies for tagging


In our last post, we discussed, Raising Monarch that Migrate. Tagging is another way that we can track and protect the monarch population, with limited human interference.   “It [tagging] provides insight into the habitats they use for reproduction, and allows researchers to associate the location of original capture with the point of recovery for each butterfly,” said BCR Naturalist, Jim Schwiebert. Data collected from the tagged butterflies provides information on migration patterns of returning butterflies, how weather influences these patterns and survival rates each year. The data collected at Beaver Creek is part of a larger effort to conduct research on this population.


A Painted Lady resting on
naturalist, Jim Schwiebert’s, shoulder.
The Great Lakes population of monarchs have been tracked at 12 sites in Mexico, to date. They can travel to these southern sites in as little as a few miles a day or as many as 40 to 50 miles per day. Research shows from past tagging, that travel time is highly dependent on weather conditions. Wind, rain, and cooler weather can stall their migration for days at a time. 
Monarch with a tagged wing so
     BCR can track its migration to Mexico.


The majority of migrating Monarchs reach their overwintering site in Mexico by the end of November. Tag returns indicate that the Monarchs we tag, reside in the mountains west of Mexico City.  “The monarchs roost in stands of Oyamel Fir trees, and that is where they spend the winter, only leaving their roosts to visit a mountain stream to rehydrate on warmer days,” commented Jim Schwiebert.

After the warm winter they spend in Mexico, while the rest of us freeze in the Midwest, they start their journey northward in March. The generation of Monarchs that migrated will mate and lay eggs in southern states, until the end of their lives. The migrated Monarchs progeny will then move towards the Great Lakes region and will produce another generation. This third generation are the Monarchs seen in June and July, in time for another summer of Butterfly House fun here at Beaver Creak Reserve!




Tuesday, July 2, 2019

Our Take: Raising Monarchs Who Migrate

Monarch Chrysalises hanging in the lab at
 Beaver Creek. (Photo by Ruth Forsgren) 
A recent article on a study of Monarch Butterflies raised in captivity has a lot of people aflutter.  On June 24, Nation Public Radio shared a story on social media that really took off.  The article (found here) alleged that a graduate student at the University of Chicago ordered Monarchs from a breeder and, "made an accidental discovery: the butterflies had likely lost the ability to migrate." 

Furthermore, the article continued to report that the student, Ayse Tenger-Trolander, 


...studies the genetics and internal biology of migratory monarchs, and she had ordered the butterflies from a breeder that supplies butterflies for educational settings, with the goal of speeding up her experiments. "We fully expected ... that even though they've been bred in captivity, they're still normal North American monarchs," says Marcus Kronforst, her advisor at the University of Chicago.
To their surprise, the breeder's butterflies had rounder, smaller top wings - similar to nonmigratory butterflies. When they were put in a flight simulator, they did not orient south, unlike the wild North American butterflies they'd been raised alongside. The captive-bred butterflies, the scientists realized, were unlikely to migrate. Their findings are published this week in the journal PNAS.
Monarch Caterpillars from Beaver Creek's
caterpillar lab.  Each year we raise between
400-1000 Monarchs from egg. 
We have been raising Monarchs at Beaver Creek Reserve for nearly 10 years.  Each year we train more and more community members on how they can raise monarchs in their own home to help increase the population.  We will go into why this helps later in the article.

Since so many people have questioned whether their own citizen efforts were potentially not producing migrating monarchs, we asked our own specialist. " I think it's quite likely that some captive-raised monarchs may lose their ability to migrate," explained Schwiebert. "Especially those that are sourced from places in the southern United States, Florida in particular, where the majority of the monarch ranchers exist."  Monarchs are able to overwinter in Florida and even parts of southern California due to the year-round mild climate. 


"I think our records at Beaver Creek show pretty strongly that our monarchs do make it to Mexico, considering we've had 10 tag returns in the 20 years that we've been tagging. So I don't think this article is directed at home hobbyists, or small-scale operations like Beaver Creek, who only raise native monarchs from wild collected stock and then release them," continued Schwiebert.

Naturalist Jim Schwiebert reaching up to the southeast
corner of the butterfly house to select butterflies for tagging. 
So for those of you already doing your part to help bolster the Monarch population, or for anyone interested in starting to raise Monarchs, it is best to live catch caterpillars or eggs and then release them as soon as the butterflies emerge from their chrysalis.  But don't worry if the Monarchs that emerge in June, July and even Early August don't immediately head south.  Those early generations stay here to breed and then die.  Monarch hatching in mid to late August and September are the generation that migrates south.

"Butterflies are amazing in general, but the thing that amazes me most is the last generation of Monarchs.  When we release any of the other generations Monarchs, they fly in every direction. But those that emerge in the last generation of Monarchs, those that we tag, from the time that their wings are dry they immediately move to the south side of their enclosures.  When we release them into the butterfly house ahead of tagging them, they mostly congregate on the southern side of the house, and after they are tagged and released, they head south instinctively," commented Brianne Markin, Marketing and Development Coordinator.  "It is important to remember that the migrators are not the first, or even second generation hatched.  This would be like your great-great-great grandchildren knowing where your ancestral home was, without being given directions" continued Markin.

Monarch from Beaver Creek's Butterfly House. 
So how exactly does raising Monarchs at a place like Beaver Creek, or in your own home help increase the population? Monarchs, as well as many other pollinators, have declined in drastic numbers primarily due to the use of pesticides and habitat loss.  Monarch butterflies will only lay their eggs on one plant; milkweed.  The caterpillars will only eat one plant, also milkweed. So if there is no Milkweed, there are no Monarchs. Use of pesticides in areas along the migration route has also contributed to a population decline.  By raising Monarchs from either an egg or a caterpillar we can give them a much better chance at surviving to adulthood in order to reproduce.  

If you are concerned about the plight of the Monarch and want to help, but maybe aren't ready to make the leap to raising them yourselves, there are still plenty of things you can do.  1. Plant Milkweed.  2. Plant More Milkweek. Educate others on planting milkweed or nor mowing ditches or other areas where milkweed grows.  3. Help Beaver Creek by finding eggs or caterpillars. 4. If you have Milkweed growing on your property, bring it to us to feed our hungry horde. The bonus is that our trained volunteers will often find eggs and caterpillars on it as well! 5.  Donate to Beaver Creek Reserve, Journey North or another organization working to preserve Monarch habitats. 



Wednesday, June 12, 2019

Say 'So Long' to Summer Pests

Blue skies and long, warm days mean summer is here. And after what seemed like the winter that wouldn’t end, many people are ready to head outside and hit the trails. However, the warm weather also brings out some unwanted pests. With an increase in cases of Lyme’s disease in Eau Claire County, many people, especially parents, are understandably nervous. Last year Beaver Creek Reserve collaborated with the Eau Claire City-County Health Department to educate the public on reducing the risk of Lyme Disease and other diseases spread by ticks, mosquitoes, or biting insects.

Different types of ticks carry Lyme and other diseases and you should check yourself and your family thoroughly after spending time outdoors in the lawn, park, or woods. If you find a tick on your family or pet, use fine-tipped tweezers to grasp the tick as close to the skin’s surface as possible. Pull upward steadily to be sure the entire tick is removed, then clean the area with rubbing alcohol or soap and water. If you develop a rash or fever within several weeks of removing the tick, see your doctor and be sure to mention the tick bite.

 If you love the outdoors, what can you do to limit your risks of tick bites in the first place? Some of the most commonsense preventative measures are still the best.

When hiking, stay on groomed trails, and stay to the center of the trails if possible. Wear long pants and shirts with long sleeves, and tuck your pants into socks, boots or shoes if possible. Wearing light-colored clothing makes it easier to spot ticks on you. Again, after hiking or spending time in nature, check yourself, children and pets thoroughly for ticks. There are also a variety of repellants that have been approved by the EPA for use in repelling, and in some cases, even killing ticks. The Center for Disease control recommends three repellents. Permethrin, DEET, and Picaridin are the most effective options.

Let’s take a look at each of these choices. Permethrin is considered the most effective repellent, as it
both repels and kills ticks. Permethrin is a synthetic compound designed to mimic the properties of natural extracts from the chrysanthemum flower. Despite the somewhat natural origins, Permethrin should never be applied directly to skin. Instead, clothing is treated with permethrin and allowed to dry. Once dry, it will not transmit to skin. Treated clothes will remain effective through 50-70 washes. Permethrin is available online and more stores are carrying it. Clothing items pre-treated with Permethrin are also being sold. Beaver Creek sells BugBeWear® brand socks that are pre-treated with permethrin in the nature store.

The next most effective repellent for ticks is DEET. With average effectiveness of 85%, DEET is also the most studied insect repellent. DEET can be applied directly to the skin or to clothing, although it may stain or damage some fabrics. While there have been concerns about negative effects, a concentration of 20-50% is considered safe. Common sense precautions such as not applying products containing DEET to broken or sensitive skin, minimizing skin exposure, avoiding contact with eyes are all recommended. It is also recommended to wash products containing DEET from skin completely after use.

One of the newest repellents on the market in the United States is Picaridin. Picaridin is another synthetic compound made to mirror those of a plant. In this case, plants containing the natural compound piperine found in plants used to produce black pepper. Picaridin has been widely used in Europe and Australia prior to approval for use in the United States in 2005. It can be applied to skin or clothing, is 85% effective in repelling ticks and other biting insects, and is odorless and non-irritating. Several repellents containing Picaridin are widely available.

There are three other repellents shown effective by research; two of the three are approved by the EPA. With an active ingredient derived from wild tomato plants, BioUD has a 90% average efficacy rate and can be applied to both skin and clothing safely. IR3535 is a short name for Insect Repellent 3535 which was trademarked by Merck pharmaceutical in the 1980s. Despite a long chemical name (Ethyl butylacetylaminopropionate) this compound is essentially a synthetic amino acid, structurally similar to a beta amino acid found in vitamin B. This repellent works by confusing an insect’s sense of smell. Use of IR3535 has been widespread in Europe for over 30 years and WHO (World Health Organization) studies have proven it not only safe but also effective. IR3535 is the active ingredient in Avon’s popular Skin So Soft Bug Repellent.

The last option is one that is not approved by the EPA but has shown to be as effective as DEET in some varieties. A lot of debate surrounds the use of Essential Oils, especially as a repellent. The most researched varieties were rosemary, geraniol, peppermint, thyme, lemongrass, and cedar. Efficacy depended on the concentration and type of oil.

When applying repellents to skin it is recommended to test a small patch of skin prior to widespread use. Aerosol and spray repellents should be applied to skin (if recommended) and clothing outdoors. Repellents are not recommended for use on infants, and many are not recommended for children under age two. Read all warnings and indications on packaging prior to use. For children age 2-12 it is highly recommended to supervise children when applying repellent. Parents or another adult should apply the product to their own hands and then rub onto a child’s clothing or skin (as directed). More information and tips for reducing your risk of Lyme’s can be found at www.echealthdepartment.org


Tuesday, June 4, 2019

I Found a Baby Animal, Now What?


The call was received at dusk on an early summer day in 2012.  A gentleman caller, from Chippewa County, stated a continuous crying sound drew him to his wooded backyard where he noticed a hairless animal on the ground.  Based on the information given, I knew time was of the essence for its survival.  Upon arrival at Chippewa Valley Wildlife Rehabilitation (CVWR), a full exam was done on squirrel #17.  She was approximately 3 weeks old and eyes still closed.  Her body was cold, unresponsive and severely dehydrated.  After two weeks in the intensive care area receiving around the clock care, this black squirrel was no longer intake #17 but a survivor who we started referring to as “Blackie”.  Blackie was released back into the wild at 13 weeks old.  She was healthy and full of squirrel spunk. Blackie continues her life’s journeys on the acres surrounding CVWR.  I often see her helping herself to a peanut from the hanging squirrel snacker box.     

The mission of Chippewa Valley Wildlife is to care for injured, sick or orphaned wild ones with the goal of returning them to their native habitat as healthy, productive members of their community; to provide information in response to public inquires about wildlife; and to provide wildlife education to the public. CVWR is licensed by the State of Wisconsin and is an entirely donation-supported nonprofit organization. 

Spring is filled with new life in the Chippewa Valley’s great outdoors.  It is also during this time of the year that CVWR receives numerous questions and inquires about animals that seem to be abandoned, injured, or in need of help.  The frequency of human-wildlife encounters increases, especially those involving young animals.  Most young animals that seem orphaned or abandoned do not need help.  Animals take care of their young in a variety of ways.  Here are a few examples:    

Grey Squirrels will make a nest in trees by using tree cavities or leaves.  Baby squirrels are about the size of a human thumb when born.  At 4 weeks of age, they begin to explore outside the nest area.  They are weaned at 8 weeks old and cannot survive on their own until 12 weeks of age.  If a squirrel is found with its eyes still sealed shut, it has probably fallen out of the nest.  Mothers will usually retrieve their young when they fall out or wander away from the nest.  If the squirrel cannot be placed safely back into the nest, place the young in an uncovered shoe box with a soft ravel- free cloth and place it at the base of the tree.  Infant squirrels injured due to a fall or not retrieved within a couple hours will need assistance.  Juvenile squirrels that follow people or pets are usually orphaned and may need to be taken into care. 

Cottontail Rabbits make shallow fur and grass-lined nests in the middle of lawns, by sidewalks, and in gardens.  A mother rabbit will only feed their young at dawn and dusk and does not stay in the nest during the day.  If a nest is disturbed because of a pet or lawn and garden work, the nest can be rebuilt and the young replaced and the mother will most likely return.  The young leave the nest at 15 days old.  They are a bit smaller than the size of a women’s fist, the ears are up, the fur is thick, and eyes are bright.  They are capable of being on their own and should be left alone. 


Raccoons will nest in tree cavities, brush piles, rock crevices, and buildings.   At 4-6 weeks of age, raccoon kits can walk, climb, run and may explore with their mother.  Weaning occurs at 8-12 weeks; however they will remain with their mother until the following spring.  A kit found wandering alone before the age of 4-6 weeks of age, is usually an indication that the mother has been gone for several days (trapped or dead) and will need assistance.  A mother raccoon will usually retrieve their young when they fall out or wander away from the nest.  A healthy kit found outside of their nest can be placed in a ventilated box within close proximity to the nest overnight for the mother to retrieve.  If the kit is still there the next morning, assistance is needed. 

White-Tail Deer fawns have the natural instinct to lie in the grass quietly and wait for the doe’s return to nurse.  Fawns are protected from predators by their lack of body odor and by their coloration.  The mother deer only comes to feed the fawn every few hours.  She then retreats to a safe distance so as not to enlighten predators to the young’s location.  Unless a fawn seems injured or is walking around calling, it does not need help.   

Mallard Ducks will make a concealed nest in wetland grasses or by bodies of water, but can also be found in flower pots, parking lots, or on rooftops.  Ducklings are born with eyes open and a covering of downy feathers; however depend on the hen for warmth and protection.  Ducklings, at 24 hours old, are often seen when the mother is leading them to water.  The hen stays with her brood approximately two months after hatching with the young being able to fly.  Seek advice if there is concern about the nest being in a dangerous place or the hen is unable to get the ducklings to water.   If a duckling is alone, look and listen for any sign that the mother and siblings are in the area, for it is not uncommon for a duckling to get temporary separated from the others.  If the family is not located or does not accept the young within an hour, the orphan will need care. 

A young animal’s best chance for survival is to be raised by its natural mother.  It is important to make every effort to try to return the young to its mother.  CVWR should be contacted immediately if:
  • The animal appears injured
  • The animal is bleeding
  • The animal is emaciated
  • The animal’s parent is dead or no longer in the area (trapped and relocated)
  • The animal has been handled by a predator
  • The animal is shivering
  • There are flies, fly eggs, or maggots present on the animal
  • The animal is in a dangerous location   

Chippewa Valley Wildlife Rehabilitation may be reached at 715-838-0326
Monetary donations are greatly appreciated and are tax deductible- Thank you for your support
Mailing address is 8135 Burnell Drive, Eau Claire ,WI 54703  

Elise Bauer, Chippewa Valley Wildlife

More information that can help determine if a baby animal was abandoned can be found at: https://dnr.wi.gov/topic/wildlifehabitat/orphan.html 

Tuesday, April 30, 2019

Savanna Inferno: Burn Baby Burn


Jerry Polden and Jerad Polden, Beaver
Creek Reserve staff
On Tuesday, April 23, with the help of some volunteers, Beaver Creek staff conducted a controlled burn on our 2.5-acre savanna.  Burns are conducted on the savanna on a four-year rotation.  It’s not something we do for fun – although it is kind of fun.  Savannas are an uncommon habitat type in the state of Wisconsin and maintaining savannas, in its original state, is best accomplished through burning. In the state’s history, many more acres of savannas have existed.  Fires formed the original savanna landscape, and were either started by acts of nature or were set by native people in order to control brush and increase the productivity of mast and fruit producing shrubs and trees.  Burns also made traveling across the landscape easier.

Savannas are typically burned in the spring to best suppress the sprouting cool season grasses, and, if the fire is hot enough, the burns are used to kill back the brush and tree species that are constantly trying to invade. Beaver Creek’s savanna is burned to promote the growth of warm season prairie grass species and wildflowers endemic to savanna areas.  A scattering of bur oak is also a part of the savanna landscape and, since they are resistant to fires, they persist – burn after burn.


The burn this spring was less than ideal.  A week before the burn, floods deposited a layer of silt that coated every leaf and blade of grass.  The resulting burn was cooler than desired and more work will have to be done to treat the invading brush and tree species.  But, the burn will recycle nutrients beneficial to all of the prairie plants, and we will definitely notice a response to the burning. 

In a few weeks, the blackened areas will be gone, and a sea of growing green vegetation will predominate.  It’s fascinating to watch nature at work.  Come over to Beaver Creek Reserve and check it out for yourself!

Jim Schwiebert
Beaver Creek Reserve Naturalist

Tuesday, March 19, 2019

The Bat-astrophe

While we had Jack Frost nipping at our noses during the chilly winter months in Wisconsin, the bats that hibernate in Wisconsin’s caves had something much more grim nipping at their noses. White-nose syndrome (WNS) is a disease that has been plaguing hibernating bats since its discovery in 2006. The primary effect of this disease is that the bats are waking up frequently during hibernation. This state of restlessness exhausts their energy supplies, causing them to die from either exposure to the elements, starvation or dehydration.
Image result for white nose syndrome bats
"Little Brown Bat; close up of nose with fungus, New York, Oct. 2008. 
Credit: Ryan von Linden/New York Department of Environmental Conservation" 
(whitenosesyndrome.org)



The Wisconsin DNR has estimated that 5.7-6.7 million bats have fallen to WNS in the last decade, making this the most prominent loss of wildlife in North American history. This staggering mortality rate signifies that the decline in some bat populations is approaching 100%, which would mean extinction for them. The extinction of certain cave bat species would be devastating in itself but also devastating for the ecosystems that the bats play a large role in. Bats are not only pollinators but they are also a natural, effective form of pest control as they consume agricultural nuisance insects as well as harmful insects that carry diseases, such as the West Nile Virus.  

The WNS prognosis is bleak, but the future's looking bright as treatment methods have been developed and are being tested this year. One of the possible treatments is a preventative vaccine that is being administered to the bats by Wisconsin DNR biologists along with University of Wisconsin researchers and the US Geological Survey. Despite this vaccine being in its early stages of testing, the results are looking promising. The second form of treatment is the use of an ultraviolet light to kill the fungus that causes white-nose syndrome. Another treatment is an anti-fungal agent that is distributed in caves with a “bat-fogger”. This treatment method was deployed in 2017 in a railway tunnel in Northern Georgia and when examined the following year in April 2018, there were 26 more bats present than there were the previous year. With these new developments, hopefully, in the years to come cave bats will have a more restful sleep through the winter months. 


White-nose syndrome affects four of the seven species of bats in Wisconsin, with three species listed as Species of Greatest Conservation Need. It’s important now more than ever that we learn about these bat species with the large threat that WNS poses towards them; which has been made easier in the past decade with new bat monitoring technology and practices. Acoustic Bat Monitoring is one practice that utilizes specialized devices to pick up echolocations from bats and marks each echolocation with a GPS coordinate, which is then sent to the Wisconsin Department of Natural Resources (DNR). From there, the DNR can tell what kind of species it is because each species has its own unique echolocation. 


If you’re interested in learning more about these misunderstood night critters, you can come out to Beaver Creek Reserve and participate in our Acoustic Bat Monitoring program on April 24th, from 7:30-9:15 PM. At this program you will learn how to use the Citizen Science Center’s Acoustic Bat Monitoring device which will collect data about these endangered species through both driving and walking surveys. We've been doing bat monitoring at the Citizen Science Center since the winter of 2008, with over 100 surveys conducted. Registration ends on April 23rd.