Wild File Q& A: Are African honey bees here? Are they dangerous?

Q: Are African honey bees here? Are they dangerous?

Af_bees
A colony of African honey bees chose to settle on a high tree limb along the Marsh Trail, where they do not pose a threat.

 

    A: According to Dr. Jamie Ellis, entomologist at the University of Florida, approximately eight out of ten wild honey bee colonies in Florida south of a line from Tampa to Daytona are the African honey bees, often referred to as the killer bees.

No honey bees are native to North or South America. European settlers brought a temperate European subspecies with them when they colonized the Western hemisphere, and that species is the common honey bee. The African honey bee was first imported to Brazil in the 1970s by a beekeeper hoping that using a tropical subspecies from Africa would provide more productive honey producers in tropical Brazil.

Escaped queens enabled the subspecies to spread across South America, Central America, and the southern and southwestern United States in just 30 years. It is the most biological successful invasive species.

There are no visual differences between the European and African honey bees. The African honey bee is slightly smaller and has slightly less venom, but the two are so close that the only way to distinguish them individually is to send a sample to the University of Florida’s
lab for dissection.

Both subspecies defend the territory around their colonies, which is the only time the bees will be aggressive as a group. But when a European colony is disturbed, on average only 10-15 bees attack. When an African colony is disturbed, 10,000-12,000 bees attack.

Bees in a colony can detect vibrations in the ground up to 50 feet away from the actual colony, and the African bees can detect vibrations from heavy machinery such as tractors up to 100 feet away. However, colonies located more than 30 feet above the ground do not
usually pose any sort of risk.

When bees attack, it is always to defend the colony. Dr. Ellis said that the ONLY defense is to run away as fast as possible. Once out of the bees’ territory, the attack stops. Several dozen stings will be painful but not lethal.

Running is the only defense, and most people can outrun a bee. Do not stay and swat! The colony is probably close and attacking bees are attracted to movement, so swatting just attracts more bees. Don’t hide in underbrush because the bees can fit in there too, and don’t jump in water. Bees may stay agitated for up to 30 minutes after the colony is
disturbed, which is a lot longer than people can hold their breath under water.

If an attack occurs, survival is the only concern. It takes 5-10 stings per pound of body weight before the attack may be lethal, so barring allergies to bee stings, a 100-pound person could survive up to 1,000 stings.

Seek shelter in a building or vehicle. Some stinging bees may make it in too, but the number will be limited and once they sting, they die. If you see someone else being attacked, yell at them to RUN. If they don’t, do not try a rescue yourself because then there would be two
victims instead of one. Call 911.

By: Dick Brewer

Mosquitoes of the Marsh: A CREW Strolling Science Seminar- December 5th

Join Neil Wilkinson – FGCU instructor and current President of the Florida Mosquito Control Association – for our second strolling science seminar of the season, Mosquitoes of the Marsh: The Good, the Bad, & the Ugly – on Friday, December 5th, 9 AM to noon at the CREW Marsh Trails. Registration is required. Register on our Eventbrite page here.

This seminar is about one of Florida’s most famous living creatures – mosquitoes. Learn the life histories of fresh floodwater and natural container species of mosquitoes common to southwest Florida. You will be surprised by the fascinating diversity of species and behaviors. We will begin with samples of adult and larval mosquitoes and learn about their life histories then hike into the preserve to check  for adult mosquitoes caught in traps set the night before. We will use aquatic dip nets to survey for mosquito predators in ditches and depressions and be on the lookout for other amazing wildlife that the CREW marsh protects.

Enhanced knowledge at the species level is the basis for a greater understanding of the whole watershed system. We will have ample time to discuss issues related to controlling mosquitoes, types of control, and consider the impact of NextGen mosquito control products. Mosquito control, like watershed management is a classic environmental science case study. Humans impact the environment, often in harmful ways and as awareness and science progresses new options arise for ameliorating our actions.

Neil Wilkinson

Neil Wilkinson, is an instructor in the Department of Marine and Ecological Sciences at Florida Gulf Coast University. Wilkinson is currently the president of the Florida Mosquito Control Association. He is an environmental educator with extensive classroom and field teaching experience at the elementary, middle, high, and university levels. He spends half of his time teaching a science outreach program to classes in the local school district. He acts as a liaison between FGCU, the Lee County School District’s Environmental Education Program, and the Lee County Mosquito Control District facilitating interagency cooperative and collaborative efforts among students, faculty, and staff.

Parents: Help Your Kids Get Their “Vitamin N”

3rd grader journaling at marsh

Vitamin N is another term for Nature. Time in nature can help reduce attention deficit, increase academic performance, and boost physical and mental health.

Richard Louv, author of the bestseller Last Child in the Woods, labeled the condition caused by Vitamin N deficiency when he wrote his seminal book. “The term Nature Deficit Disorder actually started out tongue-in-cheek, but it soon became apparent that the term—which is not a medical condition—finally put a face on the profound alienation that has occurred between children and nature over the last 30 years,” says Louv, co-founder and chairman emeritus of the Children & Nature Network. (source: Are Your Kids ‘Vitamin N’ Deficient? accessed at http://parade.condenast.com/222813/juliebawdendavis/are-your-kids-vitamin-n-deficient/)

CREW invites families with children ages 3 to 12 to come out to the CREW Marsh Trails on Saturday, November 1st for a morning walk. The walk includes simple activities that engage the senses and curiosity of children and help dispel fears of the outdoors.

Pre-registration is required and is open until October 28th, so register today at http://crewvitaminnwalk.eventbrite.com

 

CREW Guided Walks Begin in November

Bird Rookery Swamp TrailIt’s been a long, hot summer, but the cool fronts are moving through and the rains are getting scarce, and that means it’s time for us to crank up our regular Guided Walks at the CREW Trails. Starting in November – and running through April – regular guided walks will be held at the CREW Marsh Trails (led by Dr. David Cooper) and at Bird Rookery Swamp (led by George Luther, Bob Melin,  Chrissy Podos, and Jack Shine). This year, we’re adding a third “regular” walk at the CREW Cypress Dome Trails (led by Dick Brewer). Guided walks include some history of CREW and interpretation of the natural world found at each site.

Each trail is unique and each walk leader has his/her own special talents and stories to share. Come on out for one or all three. These CREW walks are free, but pre-registration is highly recommended since they often fill up, and registered participants get first dibs on space.

CREW Marsh Trail Walks with Dr. David Cooper
1st and 3rd Tuesdays and 2nd Saturdays (November – April)
9:00 AM – noon
Get more info and register here: http://2015crewmarshwalks.eventbrite.com
Bird Rookery Swamp Trail Walks
with George Luther & Bob Melin
Wednesdays (9 – 11:30 AM) – November through April
1st Sundays (1:30 – 4 PM) – November through April
4th Saturdays (9 – 11:30 AM) – November through August
with Chrissy Podos
1st and 4th Thursdays (9 – 11:30 AM) – February and March
with Jack Shine
2nd and 3rd Thursdays (9 – 11:30 AM) – February and March
Get more info and register here for all BRS walks: https://crewbrs2015.eventbrite.com
CREW Cypress Dome Trail Walks with Dick Brewer
3rd Fridays (November – March)
9:00 AM – noon
Get more info and register here: http://2015crewcdtwalks.eventbrite.com
CREW Marsh boardwalk
CREW Marsh boardwalk

Happy Trails – see you out there!

 

 

Video: Airboat Ride Through the CREW Marsh

Ever wonder what that 5,000-acre marsh that you can see from the overlook at the CREW Marsh trails looks like out in the middle? Take this virtual ride on an airboat through the Corkscrew Marsh, the headwaters to the Corkscrew Regional Ecosystem Watershed (CREW) and you will see.

This is where much of southwest Florida’s drinking water gets stored and cleaned by nature within the watershed and where wading birds nest, limpkins and snail kites forage, and alligators raise their young. Notice the patchwork of sawgrass, open water with water lilies, tree islands, and big beautiful sky! The CREW project team (land managers, biologists) recorded this ride in August of 2014. Video by Tiffany and Dan Thornhill.

Sneak Peek: CREW Fall Schedule of Events

Sunflowers at Cypress Dome Trails

Fall is right around the corner and that means cooler weather (we hope) and more trail activity, including visitors and school groups coming to CREW to learn and play. We’ve got some fabulous programs planned for you this year. Here’s a sneak peek at our fall schedule. For full details and/or to register for CREW programs, check out our list of events on Eventbrite (or use the calendar on the CREW homepage to scroll through the months and see what’s coming).

September 2014

  • September 24 – 30 – National Take a Child Outside Week (why not bring them the CREW?)
  • September 26 – CREW Board of Trustees Meeting at Estero Community Center
  • September 27 – Mushroom Walk w/ Ben Dion (SOLD OUT – waiting list)

October 2014

  • October 4 – Sunflower Festival – Pepper Ranch (CREW will have a table there)
  • October 4 – Field Trip Specialist Teacher Training (for Collier 3rd grade teachers)
  • October 18 – Fall Wildflower Walk with Brenda Thomas
  • October 19 – Ding Darling Days – Family Fun Day (CREW will have a table there)
  • All month long – Lots of elementary, high school and college field trips 

November 2014

Raccoon (photo by George Luther)
Raccoon (photo by George Luther)

December 2014 – Bicycle tour at Bird Rookery, Geocaching, and more….

See you on the trails – let’s do this!

Summer Rains Mean Wet Trails

Wet trailhead CDT June 30 2014As the rainy season picks up and we get rain events bringing 3 or 4 or more inches at a time, the CREW Trails, as you can imagine, begin to get wet. As of this week (July 1, 2014) trail conditions are as follows:

At the CREW Marsh Trails:

  • Marsh Trail and Alternative Marsh Trail – Some dry spots, but puddles and stretches of several inches of water to a foot deep in places along the marsh edge.
  • Oak Hammock Trail – One to 4 inches deep in places.
  • Pine Flatwoods Trail – One to four inches deep in places.
  • Campsite Gate 3 – needs 4-WD vehicle to access.

At the Cypress Dome Trails:

  • Green and White Loops – completely under water, depth from one to 6 inches.
  • Blue shortcut from Yellow to Green Loop – inundated with 3 to 6 inches of water.
  • Yellow Loop – some dry patches, wet in low areas near seasonal ponds.
  • All trails mowed on June 26th.
  • Campsite – dry and accessible.

At Bird Rookery Swamp:

  • Most of the trail is still dry. A few soft and wetter spots between map points 3 and 6.
  • Water rising fast.
  • Grass getting tall.

Of course, how wet the trails are depends on the frequency and amount of rain. A few days without and it’ll dry down. But as the ground gets saturated, even small rain events will fill the low spots with water.

Either way – wet or dry, summer is abuzz with life on the trails. So , come get your feet wet and enjoy the essence of summer in the swamps and marshes of CREW!

 

Celebrate Spring Wildflowers with Special Hikes at CREW

Skyflower
Skyflower

The CREW Trails are spectacular showcases for wildflowers in the springtime. The CREW Marsh Trails and the Cypress Dome Trails are particularly bountiful. We are already seeing a few grass pink orchids (Calapogon tuberosus) popping up along the trail edges, along with sneezeweed, shiny blueberries, marsh pinks, violets, a variety of milkworts, and much more.

To celebrate and help you enjoy these flowers, we have two special wildflower walks scheduled for early April:

glen stacell wf hike
Glen Stacell
Roger Hammer
Roger Hammer
Enhanced by Zemanta

Crouching Fawn Surprises Scouts

This past weekend Boy Scout Troop 11 got a real surprise while hiking the CREW Marsh Trails. Here’s what troop leader Jeff Dodd shared:

My group was out at CREW on Saturday backpacking. We stayed at the gate 3 campsite Saturday night. On the way to camp we were hiking along the Pop Ash Slough Trail and we came across a fawn standing in the trail. As it saw us approach it went into “stealth” mode crouching to get as flat as possible to the ground. Of course this little fella was right in the middle of the trail but I’m sure it thought it was hiding.

CrouchingFawn by JeffDodd
CrouchingFawn by JeffDodd

Fawns less than two weeks old usually crouch in place, rather than bolt away. It’s their way of “disappearing in place” because they are not quick enough yet to escape most predators. What a great sighting for this troop of scouts. Thanks to Jeff for sharing the story and the photo with us. And thanks for respecting the fawn and leaving it alone and safe!

If you have CREW wildlife sightings you’d like to share, please let us know so we can post them here for all to see.

Enhanced by Zemanta

New Spring Wildflower Walk Added to CREW Schedule

Skyflower
Skyflower

We are happy to announce an additional Spring Wildflower Walk has been added to our spring schedule. Local authors and wildflower experts, Glen Stacell and Dr. Gary Schmelz have agreed to lead a walk at the CREW Marsh Trails on Friday, April 4th. Register today for this one-time walk. Click the link below to register…

Wildflower Walk with Glen Stacell and Gary Schmelz on April 4, 2014, 9:30 AM to noon

 

Other CREW guided walks can be found here.

Enhanced by Zemanta