The conservation and protection of manatees, Trichechus manatus, has been a growing concern for a number of years. With the increase in annual manatee deaths from urbanization, habitat loss, boating accidents, and entanglement with fishing gear, it is important that rehabilitated manatees thrive upon release back into the wild. Antillean manatees, Trichechus manatus manatus, are an endangered subspecies of the West Indian manatee, with their largest population in Belize. The proposed study seeks to analyze factors related to manatee movement patterns: benthic vegetation (primarily seagrasses), freshwater sites, salinity, water temperature, and water depth to determine which, if any, is strongly correlated with site visitation frequency. Introduction The Antillean manatee (Trichechus manatus manatus) is an endangered subspecies of the West Indian manatee (Trichechus manatus) that is found in southern Central America and the Caribbean (Olivera-Gómez & Mellink, 2004, González-Socoloske et al., 2011). According to recent …show more content…
As herbivores, manatees are important in determining the health of an ecosystem (Allen, 2014). Often times the lack of suitable habitat and funds makes it difficult to reintroduce captive animals back into the wild (Normande et al., 2014). Examining resource use and exploratory patterns during the soft release phase aids in determining whether an animal is ready to be released back into the wild after rehabilitation. It can also be used to evaluate reintroduction success (Richardson et al., 2013). During the soft release phase, the manatee receives limited support, shelter, and food from caretakers until the individual is entirely self-sufficient. Once the manatee reaches that point, the rehabilitation team prepares for its release back into the
In the article, Sufficiency of Horseshoe Crab Eggs for Red Knots during Spring Migration Stopover in Delaware Bay USA, it is argued that the survival of Red Knots is reliant on the nutrition of horseshoe crab eggs. However, it appears that the overharvesting of the horseshoe crab eggs dictate the Red Knot population during their spring stopover. The management of horseshoe crab eggs will ensure the availability to Red Knots, which are dependent on them for endurance during their migratory flight to the Artic.
Anacostia is a historic neighborhood in Washington DC, located east of the Anacostia River. First appearing on the oldest map of Capitan John Smith, Anacostia was once home to a Native American tribe called Nacotchtank. These natives often referred to themselves as Anaquashtanks, which means trading village in their native language, Algonquian. Anacostia once served as a prime located as a trading port for natives and settlers in the 1600’s. However, Anacostia’s significance faded away, it is no longer know for its trading ports but for its high crime and poverty rates in the District.
Gibeson performed biological surveys of the 3,000+ acre, privately-owned ranch located on Mt. Hamilton just above Alum Rock Park in unincorporated San Jose. This property is now managed by the University of California at Berkeley. He helped conduct a census of the 200-foot USFWS mandated no-burn zone surrounding each of the ranch’s 12 lakes and ponds to collect accurate baseline data in order to conduct prescribed burns and habitat restoration as recommended by USFWS. A Presence/Absence Survey was administered for common mammal, bird, reptile and amphibian species, as well as for California red-legged frogs (Rana draytonii), foothill yellow-legged frogs (Rana boylii), California tiger salamanders (Ambystoma californiense) and western pond turtles (Emmys marmorata). Handling of listed species was unnecessary.
2. Methods and Materials 2.1 Study Area Apalachicola Bay is a wide estuarine system located in the Florida panhandle and covers an area about 539 km2 (Figure 1). The bay is relatively shallow with an average depth of 3.0 m. It is one of the most productive natural systems in North America, and highly recognized by the state, federal and international organizations for its pristine water quality and unaffected estuarine habitats (ANERR, 2008). Apalachicola Bay was formed by the deltaic processes of the Apalachicola River, which is a relatively unpolluted alluvial system.
The river is being restored in 4 construction phases. The Core of Engineers (COE) and the South Florida Water Management District (SFWMD) work closely using adaptive management strategies to ensure the restoration meets its goals. The SFWMD scientists set up a Performance Evaluation Program that consist of 25 performance measures that evaluate every component of the restoration including – hydrology, water quality, geomorphology, vegetation, and bird, fish, amphibian, reptile and invertebrate communities. Scientists have found that the flora and fauna that disappeared when the river was a canal have returned and are thriving in the newly restored system. Scientific data indicates that restoration is meeting or exceeding the expectations set up at the beginning of the
If a lake is cut from the ocean and has no large fish as predators (only dragonflies), then the sticklebacks will have a better chance at surviving and reproducing because the sticklebacks will be better adapted to the environment (presence/absence of a pelvic bone) and have little to no predators. The hypothesis was supported. Before the experiment started, background knowledge was collected to better the knowledge of the lakes. Bear Paw Lake is an enclosed lake, meaning no predators could get into the lake.
Florida’s changing ecosystem Florida’s ecosystem is forever being changed as we know it. Florida’s invasive species list is rapidly growing making it more difficult for native species to compete. Every day invasive species are released in Florida 's waterways, forest, and swamps wreaking havoc on the native plant and animal life. Everyday people are able to walk into a common pet store and buy their very own python, tegu, or a lionfish perhaps.
This may be dangerous in the wild as the manatees need to be close to objects to fully investigate resulting in entanglements and other dangerous
The author states that the pollution hypothesis seemed the most likely cause of otters decline along the Alaskan coast and provides three reasons. In contrast, the professor states that the ongiong investigation show that the predation theory is mst likely the cause of the decline and sh.e opposes each of the author 's reasons First, the reading claims that there were known sources of pollution along the Alaskan coast. However, the professor refutes this pint by saying that the pollution theory is weakened by that no dead sea otters were washed up to the shore. She said thet if the infection is the cause of the decline, there should be a lot of killed otters washed up, so this fact is consistent with the predation theory because if the sear otters were killedby predetors, they would not wash up to the shore.
The Florida Everglades is the third-largest national park out of the 48 states. It is also the first national park created to protect the fragile ecosystem. Without the protection of the alliga-tors and thus the ecosystem area we know as the everglades could eventually become nonexist-ent. At one time “this wetland was called the river of grass by an author back in 1947” (Strawn 17).
I will be going over both ways that are being done now and ways that we can save these creatures. First of all, the Florida fish and wildlife commission has set up zones where strict rules are being forced. The biggest one are the zones that the manatees can stay where no boats or swimmers cannot go. This provides
In Hawaii, feral cats are considered nuisances. Often, they wander into yards and areas they are unwanted, such as parks or yards. They hunt our natural wildlife, especially rare species of native Hawaiian birds. Despite the harm they cause, feral cats are in danger themselves. Putting down these animals is inhumane, yet for the wildlife’s safety and the feral cats’ own, it is imperative for their populations to decline.
In “Francis Marion: The Elusive Swamp Fox” by George F. Scheer he writes about a young patriot named Marison, who demonstrated great strength and prowess during the war for America’s independence. In his narrative he highlights war during this era for liberty and emancipation from the British Crown. In his work he illustrates the life of an active soldier who fought bravely for a grand cause and his tactics used by armies when fighting the redcoats. Similar to the “The Patriot” a film produced by Roland Emmerich he also depicts the tactics used in the war along with Out of Many and Tindall and Shi. These sources also reveal the advantage the Americans had over the British and vice versa.
Imagine living in the perfect home, the place you’ve always lived with friends, family and thousands of miles to roam around and explore. Only to wake up in a cage with the eyes of humans glaring and the flash of cameras reflecting off the glass wall. It looks like home, but the grass is fake, family and friends are gone, food only comes at certain times and the only roaming there is to do remains in the area of the closure. This is the life of an animal that goes from being wild and free to captive in zoos and aquariums. Zoos and aquariums are institutions that capture live animals and keep them in cages or large enclosures for public exhibition.
Wild animals are called “wild” for a reason. How can we be educated about wild animals when we are not seeing them in their natural environment? Captivity lacks the ability to show animals true behaviors. A polar bear’s enclosure is one-millionth the size compared to its home in the wild (Derr). With nowhere to go the polar bear ends up spending 25% of its day pacing and walking around in tight circles (Derr).