Q: How can you tell if an alligator is male or female?
Baby alligators stay close to their mother for protection.
A: There are three ways. Two are easy; the third is not.
The first easy way is to gauge the length of an adult alligator. If it measures 10 feet or more, it’s a male. Females don’t grow that long. If it’s less than 9 feet in length, it could be either a male or a female.
The second easy way is to see if there are lots of small, newly born alligators around the adult. They will stay by their mother for up to a year and she will protect them. A male gator could eat them, even if he’s the father, so the mother usually won’t let him anywhere near the babies.
There are minor physical differences in head and body shape, but basing a decision on those alone is risky at best.
So much for the easy.
To be absolutely certain of an alligator’s gender, it’s necessary to either feel or visually identify the copulatory organs that are hidden inside the alligator’s body in the cloaca, or vent, on the animal’s belly. It is a slit located between the rear legs.
For newly hatched gators, the sex organs can only be seen with a magnifying glass. The baby gator is turned on its back, the vent is opened using a tweezers, and the organs are illuminated by a magnifying glass. If they fill the entire cloaca and are dark pink to
dark red, it’s a male. Female organs are half that size and are light pink or white.
For a larger alligator, the gator must be flipped over and a person must insert a clean finger into the vent and feel for the copulatory organ which is pulled out, measured and examined. This procedure does not harm the alligator if performed correctly; however, large alligators don’t allow themselves to endure such a demeaning intrusion.
So unless an alligator is over 10 feet long or it is protecting baby gators, there’s no way to be sure if an alligator is male or female.
SOUTHERN CREW RESTORATION PROJECT CLEARS ANOTHER HURDLE
~Project phase will restore wetlands, provide flood protection and increase water storage~
LEE COUNTY, Fla. – The Florida Department of Environmental Protection has authorized the South Florida Water Management District (SFWMD) to continue the next phase of the Southern Corkscrew Regional Ecosystem Watershed (CREW) Restoration Project. When completed, the project will provide significant benefits to the ecosystem including restoring wetlands and the natural sheetflow of water, improving regional flood protection drainage, increasing water storage and aquifer recharge capability, and reducing the amount of nutrient-rich stormwater reaching the Imperial River and Estero Bay.
“This project exemplifies the commitment of the state of Florida to protecting and restoring the larger south Florida ecosystem,” said DEP Deputy Secretary for Ecosystem Restoration Drew Bartlett. “The department will continue to work closely with our partners to ensure that restoration continues.”
The authorization issued today is for Phase II of the Southern CREW Restoration Project which encompasses 4,150 acres of multiple native plant communities, including hydric pine flatwoods, strand swamps, wet prairies and marshes that have been fragmented by past construction of ditches and roads. These alterations have resulted in restriction of historic sheetflow, artificial water impoundments and flooding, increased pollutant loading to the Imperial River, an Outstanding Florida Water, and disruption of natural wetland functions.
“The project will restore the southwest corner of the larger CREW project,” said SFWMD Governing Boardmember Rick Barber. “The restoration in this particular location creates a vital buffer area between the CREW project and the eastern urban boundary.”
Phase II of the project consists of ditch backfilling, ditch plugging, road degradation and the construction of low water crossings to allow for the re-establishment of hydrologic conditions similar to those present prior to development attempts of the area in the 1960s. The project is expected to restore approximately 437 acres of wetlands. The project’s enhancements are anticipated to encourage the growth and sustainability of native wetland plant species, providing both food and habitat for wildlife.
The Southern CREW Restoration Project is located in Lee County between the Kehl Canal, which is located adjacent to the northern boundary, east of Interstate 75 and north of Bonita Beach Road.
Original Article:http://content.govdelivery.com/accounts/FLDEP/bulletins/10c091b
A: Slash Pine in South Florida lacks data, probably because there is not a local lumber industry.
However, Roy DeLotelle, a researcher for Red-cockaded Woodpecker habitat in Collier County, has collected data on the age of pine trees important for the woodpeckers. It comes from coring pines in the woodpecker’s habitat in Picayune Strand in Collier County.
Slash Pines grow a little larger in the drier pine/palmetto forests (mesic flatwoods) than in the wetter pine/grass forests (hydric flatwoods), and there is a good deal of difference between individual trees. Note the variations between the individual dots and the
“average” line in the graph, so a tree’s diameter in DeLotell’s graph below may not tell the precise age.
In the field, biologists use a different indicator of an “old” pine tree: a flat top shape to the pine canopy.
In DeLotells’ graph of his data, DBH is the Diameter at Breast Height. The R-squared values show how well the line fits the data points. R-squared ranges between 0 and 1 with the higher number showing the line is a good fit for the data.
Slash Pines can easily live past 200 years, and there are many that old in Collier County.
Below are first hand observations from our volunteer Dick Brewer. Who does weekly visits to Bird Rookery Swamp and very week sends us incredible stories of the magical 12 mile loop. If you would like to see more of his observations visit: http://www.dickbrewer.org/CREW.html
By Dick Brewer
“Below are observations from BRS on June 6. Great day for butterflies with 19 species identified, plus three more skippers that I don’t know and haven’t identified. The attached photo shows two Silver-spotted Skippers, one Dun Skipper, and one Ruddy Daggerwing all feeding on the same Buttonbush plant.
The juvenile Barred Owl was on a limb over the pond at marker 6. It flew down into the grass one time where it caught and ate something very small; then, it flew back up to its limb and began hissing for an adult to bring it more food.
The otter family was in a water hold blanketed with Duckweed but each otter was quite successful at catching fish. The second photo shows one of the otters really chewing a fish it caught, first on one side of its mouth, then the other, and finally chomping with both sides.
The tail of the fish is still hanging out of the right side of its mouth in the fourth panel.
Below are first hand observations from our volunteer Dick Brewer. Who does weekly visits to Bird Rookery Swamp and very week sends us incredible stories of the magical 12 mile loop. If you would like to see more of his observations visit: http://www.dickbrewer.org/CREW.html
“It was a so-so day for birds but a great day for butterflies and mammals, River Otters especially. I saw seven– a family of five and two other individuals in separate places. The family retreated into what was probably their den in two fallen tree trunks, a nice
two-story place. Once inside, there was some grunting and huffing, and two of the juveniles peeked out, one from the second story and one from the ground level (photo). Another young otter was on its own a little past Ida’s Pond and alternated between catching fish and
watching people watch it.
The Water Moccasin was between markers 6 and 3. It was small, perhaps three feet, but it was easily irritated because it was ready to shed its skin. The milky blue eyes meant it was close to sightless, so it over reacted to any movement, sound or vibration. A couple from South
America bicycled by as I was watching the snake; the husband stopped but when his wife heard the word “snake,” she put her head down and quickly pedaled on by. He said snakes were not on her favorite critter list.
By Dick Brewer
The young Red-shouldered Hawk was low in a maple watching the world go by. Mullet and its sibling have fledged and are no longer at the nest near marker 3. ”
By Dick Brewer
BIRDS
Anhinga – 6
Great Blue Heron – 1
Great Egret – 14
Little Blue Heron – 2
Black-crowned Night Heron – 3
Black Vulture – 41
Turkey Vulture – 19
Red-shouldered Hawk – 26
Common Ground Dove – 4
Red-bellied Woodpecker – 16
Downy Woodpecker – 2
Pileated Woodpecker – 3
Great-crested Flycatcher – 9
Blue Jay – 2
Blue-gray Gnatcatcher – 3
American Crow – 1
Tufted Titmouse – 11
Carolina Wren – 6
White-eyed Vireo – 19
Red-eyed Vireo – 2
Northern Parula – 3
Northern Cardinal – 24
Shoreline Fishing Spider (Dolomedes triton) By Dick Brewer
Q: Do all spiders bite, and are they poisonous?
A: There are two problems with this question: a technicality, and a set of false assumptions.
First, the technicality. “Poisonous” and “venomous” are two different things. No spider is poisonous — harmful to eat, breathe, or touch. Mushrooms are sometimes poisonous, but spiders are not. Spiders are venomous; their toxins are proteins which only work when injected.
Second, all spiders do bite, but most local spiders are harmless because they are not aggressive and will not bite indiscriminately, or their fangs are simply too small to nip through our comparatively thick skin. Just because they are venomous does not mean they are
dangerous to people.
Spider venom does not exist to harm creatures which are too large for spiders to eat, like humans. The purpose of spider venom is to subdue the spider’s prey, almost always insects. In brief, it’s an insecticide.
Nevertheless, all larger spiders with a body length of a half inch or more should be treated with caution. Avoid flicking them away from your body. People allergic to bee stings may react more strongly to the bite of a spider than an ordinary person.
Bees and wasps kill more people in the United States in one year than spiders and snakes combined kill in ten years, and dogs and cats kill or injure more people each year than bees and wasps. Yet most people like dogs and cats and fear spiders and snakes.
Below are first hand observations from our volunteer Dick Brewer. This is a special week as we are luck to get Dick’s observations from all three trail systems. If you would like to see more of his observations visit: http://www.dickbrewer.org/CREW.html
Red Rat Snake By Dick Brewer
Monday, May 11 Marsh Trails- 6:45 am-8:30 Cypress Dome 8:35am-10:30
Great Egret………………………………………………… 6………………………………………………………………
Black Vulture……………………………………………… 3………………………………………………………….. 25
Author Bernard F. Master chronicles his adventures as a medical professional, businessman and legendary birder in No Finish Line.
Bernard Master is a avid hiker of the CREW Trails, a phenomenal birder, and a great educator. We have been lucky to have him as a leader in our Strolling Science Seminar series. He lead Birding with the Master at Bird Rookery Swamp in March 2015 and will be returning in our 2015-2016 series. Below details Dr. Master’s new book.
No Finish Line, Discovering the World’s Secrets One Bird at a Time, is one man’s epic journey through life as a successful doctor, businessman, lifelong birder and internationally recognized conservationist. Readers will be mesmerized with his travel adventures spanning six continents and 105 countries. He shares his most exciting adventures searching for the rarest birds in the world. He is the first American to see a representative from each of the 229 bird families in the world, as well as Vireo masteri, a bird in Colombia named after him.
Whether he is meeting Queen Noor of Jordan to discuss birds and world conservation or attending a special dinner in his honor with Prince Bernhard of the Netherlands to receive a commendation in recognition of his world conservation efforts, there is always an interesting story to tell. His forays take him to exotic locations including Venezuela where he rediscovered a bird that had been absent for fifty years. Additional adventures include a thwarted kidnapping in Brazil. His quest to see a representative from all the bird families takes him to Rwanda, the Arabian Peninsula, Cameroon and China, providing readers with photos of extraordinary birds and accounts of his 7,800 species to date.
In between birding trips, Dr. Master was busy building two thriving companies, Health Power, Inc. and its sister company, the MEDCenters. His thirty-five year medical career begins with a tour in Vietnam as a battalion surgeon in a combat unit and a year as post surgeon for the U.S. Army’s Military Intelligence School. Obstacles and successes are the narratives he shares outlining the intricacies of founding a healthcare company and ultimately taking it public on the NASDAQ.
“My own life has been one amazing adventure after another with no finish line in sight.” Author Bernard F. Master currently resides in Worthington, Ohio.
No Finish Line, Discovering the World’s Secrets One Bird at a Time is available on amazon.com.
Below are first hand observations from our volunteer Dick Brewer. Who does weekly visits to Bird Rookery Swamp and very week sends us incredible stories of the magical 12 mile loop. If you would like to see more of his observations visit: http://www.dickbrewer.org/CREW.html
By Dick Brewer
“Water levels are down more, even after the recent rains. Consequently, gator and wading bird numbers are down too.
One Roseate Spoonbill spent most of the day at Ida’s Pond, so visitors coming in had a spoonbill, Banded Water Snake, gators, Anhingas, Red-bellied Turtle, Great Blue Heron, Little Blue Heron, and Great Egrets to greet them.
The “hot spot” for the day was past marker 2 where the barbed wire fence ends and a service road splits to the left. There’s a depressionnat the junction of the main tram and the service road where a River Otter spent time catching and eating Crayfish that were left. A young
Barred Owl was in a cypress overhead, and while I was talking with four women who were enjoying the otter and owl, a Yellow-billed Cuckoo called from behind us. Later, hikers and bikers all commented about the otter and owl, so it was a great day for everyone.
The tram between markers 6 and 3 hasn’t been mowed recently, so the higher grasses are attracting lots of butterfly species, especially skippers”.
With rainy season around the corner wildlife tracks will become more visible. Not everyone will see a Florida Panther in their lifetime but they are more likely to come upon their tracks. Though spotting and identifying a track is definitely harder than identifying a Florida Panther itself. Lucky for us FWC came out with a E-Z guide on how to ID panthers and their tracks:
Q: How old are the bigger slash pine trees?
