They are the only alligator in the United States. In the article by Brochu (2003) it is discussed where alligators fall in the crocodilian phylogenetic tree. Morphological studies suggest that alligators should be placed as a basal species because their snout is the widest of all the crocodilians, with the gharials being the most derived. With the advent of genetic testing, it has been found that gharials should be placed as the basal species instead. The following picture taken from the Brochu paper shows the morphological tree on the left and the latest DNA data on the right.
The Florida Museum of Natural History website says that there are two extinct species, A. mefferdi and A. olseni, that lived within A. mississippiensis range that is currently causing issues with the taxonomy. These two extinct species look similar to current species and there is questions as to if they should be to considered separate species as the American alligator has a high degree of morphological variation. The hypothesis as to where these species fall is given in the following image
…show more content…
Mississippiensis can be found along the gulf coast of North America. This includes the western range of eastern Texas, as far north as North Carolina, and as far south as Florida.
Habitat
The US Department of the Interior National Park Services website states, A. Mississippiensis can be found in freshwater slow moving bodies of water like marshes, lakes, bayous, and swamps. This can include rivers, streams, and mangroves. While they do not have the ability to excrete salt, they are able to tolerate the brackish water around the mangroves for a short amount of time. Elsey and Woodward (2010) state that they are good burrows and are known to burrow out dens for very hot and cold weather. They are also able to withstand short periods of freezing temperatures in
One misty morning in 2003, deep under the cover of the largest subtropical wilderness in the United States, a group of tourists set out for a day of exploration in the Everglades. They hoped to see some of the diverse and unique species that the Everglades are famous for, and maybe snap a few cool pictures to show their friends. They could never have anticipated what they would actually discover. A short way into their trek, the party was drawn to a noisy struggle nearby. They followed their ears to a duel between an alligator and a huge Burmese Python. The alligator clamped his jaws around the snake. The snake wrapped its body around the alligator. The tourists
Everglades National Park is an Endangered World Heritage Site and it is a natural sight. It is a tropical wetland environment and is sub-tropical. It is also home to flora and fauna including the red mangrove tree, the slash pine tree, panthers, alligators, crocodiles, birds, flamingos and insects. It is 1,542,526 acers large, so it is able to be the habitat to 800 endangered species.
Texas Horned Lizards are named for the crown of horns found on their heads, the size and number of which changes between species. Even regularly called horned frogs, horny amphibians, or even horned toads due to their leveled bodies (their logical name Phrynosoma signifies "frog body"), they are not creatures of land and water like different frogs, but rather are reptiles with scales, hooks and youthful delivered ashore. They can make a stun barriers! It's horny appearance and color helps it to mix into inadequate vegetation. Its horns may make it less agreeable. It can also blow up itself to a bigger obvious size. At last, the horned reptile is eminent for its capacity to shoot a flood of blood from its eye. More than twelve unique types
Adaptive radiation of different organisms have occurred throughout geological time through the filling of ecological niches. Organisms different from one another are capable of radiating greatly, as they evolve traits that allow them to thrive better in their environment. The Anolis lizards of the Caribbean islands are a great example of a single genus to have radiated not once, but multiple times through very similar mechanisms. Different populations of the Anolis phenotypically vary in their morphological traits to facilitate adaptation to particular niches. These phenotypic variations have evolved in convergence in more than one occasion, as recently discovered fossil specimens show similar patterns in morphology to modern Anolis.
The basilosaurus is a whale species that existed over 40 million years ago in the Paleogene period. These 90-feet-long whales swam in the warm, shallow tropical seas. This species is especially common in the state of Alabama, as that the continental coast line once existed in the modern black belt region. Similarly, the mosasaur was very common in Alabama. The mosasaur most closely relates to the snake or the lizard, with an average length of 60 feet. The mosasaur had the ability to unhinge its jaw when it ate, as well as having teeth in the back of its throat in order to prevent prey from climbing back out its mouth. The museum has one of the biggest collection of mosasaur remains.
According to the Smithsonian Zoological Park one of the features that makes American Alligators unique is “The large fourth tooth in the lower jaw of an alligator which fits into a socket in the upper jaw and is not visible when the mouth is closed.” As the teeth of the American Alligator wear down they get replaced which can lead to replacing their teeth over 2,000 times in their lives. The American Alligator has nostrils that stick up further than the rest of the snout, this is so they can breathe while the rest of their body is under water. The eyes of the American Alligator consist of upper and lower eyelids that protect them. They have a third eyelid, which protects its eyes when they swim underwater. Alligator eyes have also developed to see in the dark by reflecting light back into its own eyes.
One of the biggest names in Florida’s species invasion is the Burmese Pythons (Python molurus bivittatus), a native constrictor species of Southeast Asia, which was first sighted in the Florida everglades in 1980, has now developed into a recognisable reproducing population.
The Florida Everglades is one of the most bizarre places on America. If you don?t know what the Everglades look like , it looks like the swamp in Shrek but, much bigger. Now back to the point, The Florida Everglades is home to many endangered species and threaten animals. The Everglades has some beautiful wildlife but, the food chain breaking down by pythons and anacondas. I know I know that snakes live in the Everglades but, the pythons are eating the other consumers food and its tough for the native species to survive with the pythons and anaconda's.
Being considerate toward everybody and everything is the ideal goal that everybody hopes to achieve. Though the idea of being considerate is different depending on the person so reaching that point in the world is impossible to achieve since there is no baseline for that, we have many competing ideas as to what that could be. Some people see being considerate as being thoughtful of other people but others will see it as a deeper meaning with being courteous toward all living things on Earth and their belongings. There are so many different ways to be considerate and the readings of David Foster Wallace, Jessica Mittford, and Caitlin Doughty all have underlying messages of how people need to be more aware of what they are doing. Each piece
be able to be found here. Listen for the sinister rattling sounds of timber rattlesnakes when walking to avoid angering one and getting bit. Alligators can be seen swimming through the marshy swamp lands. Gators are seen sitting on strips of muddy land in the middle of the water guarding eggs from predators. Animals the alligators have to
Florida, a treasure trove of many, many species of animals and diverse wildlife. How many of those, ‘Florida’ species are actually native to Florida though? If you walk outside you will probably see lizards everywhere, you know, the brown ones. Well, what if I told you, that they are not actually native to Florida? Those lizards are called Brown Anoles, and they are actually from Cuba and the Bahamas. This is just one example of the many invasive species, which compete with Florida’s native species for food, resources and territories everyday. A few more examples of invasive species that are harmful to our wildlife are the Cuban tree frog, which is a threat to not only other frogs but toads and lizards as well, the Burmese python, which is invading the everglades, and the air potato, which is slowly creeping its way up through Florida, tree to tree.
Disregarding the feathers of Longisquama, and therefore disregarding its link to Archaeopteryx, these scientists still fully support the dinosaur-bird link. As mentioned before, the extreme majority of paleontologists still subscribe to this idea. A recent discovery in the western region of China seems to clarify the link between dinosaurs and birds. Living at roughly the same time as Archaeopteryx, Sinovenator changii is very closely related to the bird yet is classified as a dinosaur.5
I have seen over the years that the Hispanic population in California alone has grown enormously in California let alone the United States. The federal government came up with the term Hispanic to “provide a common ground to a quite large but diverse population of people that have come to the United States from a Spanish speaking country” (Clutter & Nieto, n.d.). I have seen that Hispanic families are a very tight family and that is very important to them as a social unit. Hispanic the term “family” consist of lots of family members like: children, parents, and even extended family like cousin, grandparents, etc.
A catalytic route to ammonia from dinitrogen has been one of the most intensively researched areas of chemistry in the last 50 years. Nitrogen gas constitutes 78% of Earth’s atmosphere, and is easily accessed through the fractional distillation of air. Despite this enormous potential for use as a chemical feedstock to synthesize ammonia, the inert nature of elemental nitrogen makes it extremely difficult for most practical purposes. Currently, ammonia is synthesized via the Haber-Bosch process, which uses nitrogen, hydrogen, and an iron catalyst at an excess of 200 °C and 300 atm. The enormous energy demands of this process consume approximately 2% of the world’s annual energy supply. Despite this high cost, the Haber-Bosch process has been invaluable as a chemical process over the last century because it has solely allowed the agricultural industry to keep up with the rising food demand of the modern world by enabling the large scale production of nitrogen based fertilizers. Still, a more efficient route to ammonia would remove a huge burden from the worlds energy supply.
The number of practicing primary care physicians (PCP’s) continues to decrease as aging PCP’s retire and new Doctors into the more sought after specialized fields. Higher salaries and better hours will continue to influence physicians to practice in specialized fields, leading to an increased utilization of specialist and an overall inefficient healthcare system. Only 30% of all physicians are PCP’s (compared to about 70% in most other developed countries and about 70% in the United States fifty years ago). Using Dr. Eliyahu M. Goldratt’s Thinking Process, we will determine what core problem is causing the shortage of primary care physicians. Evaluation of the effect of a lack of PCP’s in the medical industry will determine the Undesirable