d.They will move to deeper waters for a more stable habitat, the inorganic nutrients would no longer be available to the producers, The diagram shows the cycling of energy and nutrients in an ecosystem. Small animals would outbreed the food supply. hbbd```b``"jzD2H0;LIq0&i D~K&30 @W?c[ m!F Alligator sightings rising:Nuisance alligator numbers way up in St. Johns County, See you later:Palm Coast gator gets new home after showing up at apartment door, More:Texas graduate poses with 14-foot alligator in wild photo shoot. a.The niches created by the decrease in certain species populations makes the island vulnerable to invasive species The highly efficient predators are quick on land and even faster in water. 150 c. 30,000 (5.4) Ch.6 Ecology and Human Impact Primary consumers Increased surveillance at the airports, A: Natural resource economics is concerned with the supply, demand, and allocation of natural resources, A: Natural resources are those resources that are provided by nature and humans use it directly or by, A: When the anti-theft device is installed, there occurs positive externalities, which means that other, A: Illegal fishing activities are not recorded in economic activities by the government statistics. They can tolerate a reasonable degree of salinity for short periods of time and are occasionally found in brackish water around mangrove swamps even though they lack the salt-secreting glands present in crocodiles. Alligator activity also picks up in the spring and summertime, when they typically breed and look for new habitats. (5.4) b.The water snakes eat more fish The food chain will be disrupted if the grasshopper is removed and the ecosystem will become very unstable. 33034-6733, Download the official NPS app before your next visit. 2 endstream endobj startxref Chinese alligators usually grow to about 5 feet (1.5 meters). It is a cost which is incurred by the society\ Firm\ Individual (third party) due, A: McDonald's takes a variety of steps to ensure that it is up to date on environmental issues. Alligators and Hydrology Water depths and durations in the Everglades have been transformed by drainage and impoundment. Completed nests are about 3.5 feet high and twice as wide. Use this form if you have come across a typo, inaccuracy or would like to send an edit request for the content on this page. As energy flows in an ecosystem, some is lost as heat to the environment. the ecosystem would collapse because an alligator eats fish right? The female opens the nest in response to calls from the hatchlings when the eggs are ready to hatch. Under consumption, as hunters switch to a new animal to hunt. A cubic foot of carbon monoxide pollutes the environment, and has a social cost of $2.5. 1.25 Given this food web, what factor allows the killer whale population to be stable even if marine mammal populations decrease? (5.4) That just keeps you from getting farther away. Female alligators choose nest sites above the water level to reduce the chance of flooding, which would kill most eggs within 12 hours of submergence. ecosystem That's a long list, More:77-year-old woman bitten by alligator in Lakewood Ranch retirement community. Can you guess what gar like to eat? Feeding activity is governed by water temperature, and foraging ceases if the temperature drops below 68 to 73 degrees Fahrenheit. People are not their meal of choice. a.The fish population would increase It is illegal to feed or provoke alligators as well as all other wildlife. 4 Ecologists argue that the extinction of crocodiles could disrupt ecological processes and damage the ecosystem. 12,000 Dentition includes blunt teeth adapted well to crushing shelled animals. secondary consumer. b.With fewer large fish, killer whales prey on more marine mammals What would most likely happen to the food web if there were a sudden decrease in the number of blue crabs? "If you should be attacked, fight like your life depends on it because it does," Mazzoti said. Population & Resources review 1 What will most likely happen to the florida manatee if pollution kills sea grasses and aquatic vegetation? Price Females provide parental care, including assisting the hatching process and carrying the newly hatched young from the nests, which are located on land, to the water. WebUnder consumption, as hunters switch to a new animal to hunt. Get weekly and/or daily updates delivered to your inbox. Fish and Wildlife Service were to reduce or eliminate the tags required to hunt alligators? Price per 2-year-old llama ($) A) The vertebral column physically supports the skull and trunk. Amphibians, unlike people, breathe at least partly through their skin, which is constantly exposed to everything in their environment. A global-positioning anti-theft device installed by one car owner can produce a positive spillover to other citizens in a community. If you get bitten by an alligator, get medical attention as soon as possible. Which of the following best explains the declining fish population? Suppose firms are not held accountable for the pollution they produce. a. decrease. primary consumer. 'Terrifying ordeal from the neighbor who witnessed fatal alligator encounter, 'Alligator bite incident':Wildlife officials investigate woman's death at golf community. Were it not for additional changes in the law controlling the movement of alligator hides, extinction may have been possible. What's New at the Smithsonians National Zoo This Summer? endstream endobj 107 0 obj <>/Metadata 7 0 R/Pages 104 0 R/StructTreeRoot 14 0 R/Type/Catalog>> endobj 108 0 obj <>/MediaBox[0 0 612 792]/Parent 104 0 R/Resources<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 109 0 obj <>stream b. producers c.Unlike nutrients, energy is not recycled and reused in an ecosystem 2.00 Donnelly points out there is not an increase in the number of alligators. 3 b.An increase in salmon birthrate and survival d.Fewer salmon will force bears to hibernate later, an increase in salmon birthrate and survival, Which of the following would most directly decrease the carrying capacity of minnows in an ecosystem with this food chain? Some may weigh up to 85 pounds (38.5 kilograms); however, most weigh less than 50 pounds (23 kilograms). d. Only the minnow, abundant salmon will allow bears to thrive and produce more offspring, Salmon are born in rivers and mature there until they swim to the ocean as adults. A. Alligators have been in Florida for centuries and can be found in all 67 counties. They recycle nutrients into the soil. 6 Predators that are normally controlled by alligators can become uncontrollable if there is decline in the species. b.Abundant salmon will harm river nutrients and terrestrial landscapes They are an important part of the ecosystem and usually avoid humans, but as our population and housing rapidly expands and pushes them out of their natural habitats, we can expect to see more frequent alligator-human conflict. (remember that in a competitive market the price will be driven down to marginal cost (since firms in a competitive market earn zero economic profit). What would happen if alligators were removed from the ecosystem Now more than ever, we need your support.
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