a.It is a game, A: a. Most alligator and crocodile populations are in trouble. Adult male alligators occasionally reach 13 to 15 feet in length. Females remain near the nest during the incubation period, which averages 58 to 63 days. But they can move very quickly for short distances on land and they can lunge. Heithaus, an expert on apex predators, reminds you to be vigilant when you are near shorelines, especially between dusk and dawn when they are most active. Each villager can use this money either to buy a government bond that pays 18 percent interest per year or to buy a year-old llama, send it onto the commons to graze, and sell it after 1 year. Which 2 of the following statements are true concerning energy flow in an ecosystem? "If you should be attacked, fight like your life depends on it because it does," Mazzoti said. According to the FWC, dogs are more susceptible to being bitten than humans because dogs resemble the natural prey of alligators. If the insurance covered the full cost of its treatment, then the maximum amount that it would be, A: Wildlife conservation refer to protecting animal and plant species and their habitats. The FWCs Statewide Nuisance Alligator Program (SNAP) uses contracted nuisance alligator trappers throughout the state to remove alligators 4 feet in length or greater that are believed to pose a threat. In 2016, a toddler was killed by an alligator at Walt Disney World. If alligators are removed from their native ecosystem, it would affect countless other species. It is illegal to feed or provoke alligators as well as all other wildlife. When danger threatens, she will rapidly return to the nest to protect her eggs. Intermediate temperature ranges yield a mix of both male and female hatchlings. a.The remaining hawks are eating only mice If you see a body of water in Florida, it might be safer to assume there's a gator in it. Instinctive behavioir. 1.00 Carbon c. oxygen d. Energy, Which could be considered a secondary consumer? price = $13 Wildlife-human conflict happens all over the world. Pw2, A: Genetically modified (GM) food varieties are food varieties got from creatures whose hereditary, A: In an economy, water is the necessity for all the people due to which there is a continuous need of, A: As there is sufficient supply of the streets in the neighborhood, the situation is that of a Perfect, A: Adverse selection is the result of asymmetric information where a seller has complete information, A: Price control in an area leads to a problem such as shortage, rationing, deterioration of product, A: A. Comment. Does this provide a good incentive for low-cost production as compared with fishing in the open seas where there are few if any property rights? Under consumption, which could lead to less profit. For general feedback, use the public comments section below (please adhere to guidelines). 119 b.Higher level consumers, such as red fish, marsh birds, and alligators, are likely to overpopulate the island and the surrounding waters Fun Fact As an American alligators teeth wear down or fall out, new ones come in. Perhaps no other animal is more closely identified with the Everglades than the American alligator. "We are developing in wild places that are home to alligators, coral snakes, rattle snakes and other animals that could harm us," Donnelly said. The sun Number of llamas on the commons Your feedback is important to us. b.The snakes are increasing with fewer predators feeding on them Suppose that government allows firms to trade their permits to emit carbon monoxide. Which position in the food chain represent the primary consumer? 8,000 However, if they sense something splashing in the water, they are likely to bite first and ask questions later. Price Select all that apply? The Chinese alligator is in desperate need of habitat conservation and protection in the wild. 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. 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? d.They will begin to compete with killer whales for habitat space, Which organisms in the food chain receive energy directly from the producer? 300 kcal c. 3,000 kcal d. 30,000 kcal, Which two organisms are primary consumers in the food web? This document is subject to copyright. Web7) If whales, sharks, seals and alligators were removed from the ecosystem what would you expect to happen to the numbers of predatory fish? Simply raising awareness about this species can contribute to its overall protection. Getting away:Florida man survives in swamp for three days after losing arm to alligator. Summary of how water-management changes associated with Everglades restoration are expected to affect Social life begins before hatching, as nest mates communicate egg to egg and with parents who open the egg chamber when synchronized hatching begins. b.A decrease in grasshoppers but an increase in mice Wiki User. That just keeps you from getting farther away. I II III IV top consumer b.Available energy increases because more organisms are consumed at higher trophic levels %PDF-1.5 % a. Which organisms most directly provide inorganic nutrients for the producers to use? Ecologists argue that the extinction of crocodiles could disrupt ecological processes and damage the ecosystem. The snout of an alligator is characteristically broad, although the shape can vary slightly among populations and individuals. WebThe species that exist today have the potential to be as numerous as the ones that went extinct. Hatchlings generally emerge in September. The number of alligators began to rebound when alligator farms opened and hunting was outlawed, easing the pressure on wild populations. Water remains in alligator holes throughout the year except during severe drought conditions. Since there are multiple questions we will answer only the first three questions. E) It absorbs stresses produced by walking, running, and lifting. Which of these is the primary source of energy in food webs? Homestead, Plants b. Rabbits c. raccoons Energy stored in chemical bonds 144 0 obj <>stream The color of adult alligators varies with habitat and can be olive, brown, gray, or nearly black, with a creamy underside. a. Grass b. Insects c. rats a. When you feed them, alligators can overcome their natural fear of humans and start to associate them with food. 111 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. short run and not, Q)Empirical studies show that pollution expenditures in four US manufacturing industries are associated with significant long-run employment changes. b. Copy. Hitting or kicking the alligator or poking it in its eyes may cause it to release its grip. This audio file of an American alligator bellowing was recorded at Shark Valley on August 24, 2008. }.U=c~4+cs~M&I|!$r(==QbF ;P;g9: /F&q eKU1)z. The government gives each firm 10 pollution permits. C. tertiary succession. The American alligator (Alligator mississippiensis) is an icon of the Southeastern United States. (5.4) (5.4) State laws prohibit feeding, harassing, killing or possessing them. It's smaller, the head is more robust and its snout is slightly upturned. Alligator attacks are not uncommon in Florida, although deaths from them are. Thus in many areas where alligators once existed, they have disappeared or are only present in permanent water bodies (canals, ponds) or during periods of extremely high water. See answer (1) Best Answer. "Anytime you show up next to water, you're assuming some risk Don't tempt it. d.The water snake population increases, Which of the following could increase the carrying capacity of insects in the pond ecosystem shown? Even outside their dens they can tolerate limited periods of freezing conditions. 4,000 8,000 In the years immediately after a fire, a forest will experience A. primary succession. 30 kcal b. Now more than ever, we need your support. b.An ecosystem with 50 black rat snakes will feed 1000 squirrels c. carnivore d. Detritivore, Which receive energy directly from the sun? Were it not for additional changes in the law controlling the movement of alligator hides, extinction may have been possible. Primary consumers (5.4) Firm B currently dumps 192 tons of chemicals into the local river. 2,000 As summer begins, they switch to more nocturnal feeding habits to avoid the heat and humans while they begin their annual mating rituals. d. Foxes, a. an ecosystem that has 1000 squirrels must produce at least 800,000 acorns 109 a.The fish eat infected insects Demands for. the development of externalities from the resource.d. Consumers If the oyster population was reduced, what would you expect to happen to the quantity of microbes, floating algae and detritus? 0 6 Which of the following best explains the declining fish population? Alligators are efficient predators. Each year in April, the alligators emerge from their winter burrowsand find sunny spots in which to bask. the development of substitutes for the resource.c. They remove extra water from the soil. 116 (5.4) (5.4) short run and At the Smithsonian's National Zoo, Chinese alligators are fed small rats, mice and fish. Fish and Wildlife Service were to reduce or eliminate the tags required to hunt alligators? quantity = 12 Females reach sexual maturity at approximately 6 feet in length. Firms A, B, and C produce respectively 1, 2, and 3 cubic feet of carbon monoxide per megawatt produced. 10 b. Aside from the ethical implications of having exterminated a species irreversibly, the extinction of one species can affect the entire ecosystem, with knock-on effects that ripple through the fabric of natural ecosystems. The species that exist today were those that were not wiped out when the dinosaurs died. As energy flows in an ecosystem, some is lost as heat to the environment. When alligators seize prey they cannot easily overpower, they will often let go and retreat.". The larger opossum population will leave fewer energy storage molecules for all other populations in the ecosystem, so the fox population will reproduce less. long run and Multiple Choice This is, A: Cattlemen use portion of the ground adjacent to the fence for dog breeding. 14. a. Decomposers b. Introduction: Most alligator attacks on humans are attributed to the illegal feeding of alligators, which makes them bolder, less wary of humans, and more likely to attack instead of flee. Fish b. Spiders c.zooplankton Alligators like to feast on a variety amphibians, birds, fish, reptiles and small mammals, including raccoons and rabbits. Yes, agriculture provides a good incentive for low-cost production as compared, A: The social outcome is focused on providing goods and services to be distributed among the public at, A: Hi. As part of this research, nearly 850 nests were surveyed during this time, the majority of which were located in Shark River Slough. 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. Given this food web, what factor allows the killer whale population to be stable even if marine mammal populations decrease? State laws prohibit feeding, harassing, killing or possessing them. The Chinese alligator is the only member of the eight species in the Alligatoridae family to exist outside of the Americas. weather related occurrences that affect populations regardless of their density. WebAmerican alligators were once threatened by extinction, but after being placed on the endangered species list in 1967, their population increased. d.There is an abundance of grass with the hawks declining, A drought causes the grass to fade, wilt, and eventually die. 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. If ice coverage decreases as predicted, what will likely happen to arctic polar bears? A critically endangered cousin of the American alligator, it is one of the few alligators outside of the Americas. (5.4) tertiary consumer. d. Water snakes, terrestrial grasses and aquatic vegetation, Which organisms in the food web have the greatest amount of energy? Total income from llama can be calculated as, A: The externality refers to a situation when the action of one person affects the other person also,, A: Efficiency is achieved at the output level where MSB equals MSC, A: In equilibrium, Demand = Supply, so 85-year-old woman defending her dog from an alligator attack, November 2021 report from the Florida Fish and Wildlife. c. herbivore d. Carnivore, they help to recycle nutrients back into the soil, Why are fungi and bacteria important in a food chain or food web? In late summer, grizzly bears consume large amounts of salmon that provide the nutrition and fat necessary for the bears to survive winter hibernation. All of the above are correct. a.They will adapt their diet to include large fish, squid, and octopus Consumers Select all that apply. Heres what we could expect to lose with the eradication of alligators: Alligators Impact on the Florida Ecosystem: 4 problems wed face without them. The demand for electricity is represented by the inverse demand function P (Mw) =100 - Mw, where Mw represents the megawatts consumed by the public. Which of the following best explains this decrease in the carrying capacity for marine mammals? WebOpossums and foxes do not eat each other, so the number of births and deaths in the fox population will stay the same. a.An increase in algae growth d.Grasshoppers would increase, and snakes would decrease, the snakes are increasing with fewer predators feeding on them, 31. Which organism would you expect to find the fewest in number in the ecosystem? Donnelly, an expert on amphibians and reptiles, recommends you never allow children or pets to play, swim or exercise in bodies of water theses reptiles may call home. Fish and Wildlife Service were to reduce or eliminate the tags required to hunt alligators? Populations have since improved considerably, and alligators were removed from the list of endangered species in 1987 and are continuing to thrive in Florida today. In the pond community, the frog population is drastically reduced by this infection. d.The number of organisms decreases with each trophic level, but the amount of energy in each trophic level increases Fish and Wildlife Service were to reduce or eliminate the tags required to hunt alligators? Mating occurs in early summer, with the females building nests about two to three weeks later and laying up to four-dozen eggs; fewer than two-dozen is common. c.Marsh grasses and other producers are more likely to mutate and form new species The discarded salmon carcasses provide nutrients downstream and to terrestrial landscapes. c.An increase in the population of primary consumers Females mature at about four to five years. 4,000 A village has six residents, each of whom has accumulated savings of $100. They typically wait for something to swim or walk by and then lunge at it. Discuss the impact on the: Alligators can be found in every Florida county. (5.4) Mostly, avoid them in the first place. secondary consumer. Although these animals become easy prey for alligators and other predators such as wading birds, the value of the refuge outweighs the risk. Evaluate the work, in kJ/kg. the development of complements for the resource.b. Still, the FWC says the chances of a Florida resident being seriously injured in an unprovoked alligator attack are one in 3.1 million. Quantity Supplied (per month) Assuming the market for apples meets the efficiency condition, show the equilibrium price and quantity that maximizes net benefit to society. Market equilibrium level of output: d.A decrease in the number of apex predators, with fewer large fish, killer whales prey on more marine mammals, Commercial overfishing of large fish in this ecosystem drastically decreases the large fish population. a. During the winter dry season they modify their habitat by excavating alligator holes, which also provide a refuge for other animals during dry periods. D) The element is more readily reduced than most other elements. It's smaller, the head is more robust and its snout is slightly upturned. 10% c. 25% d. 100%, According to the biomass pyramid, how much biomass of grass is needed to support 300 kilograms of insect biomass? In a marsh ecosystem, alligators feed on blue crabs. primary consumer. An organism that eats large amounts of tissue from a dead animal carcass. c. consumers d. Scavengers, Which type of organisms makes use of the lowest energy level? A cubic foot of carbon monoxide pollutes the environment, and has a social cost of $2.5. Never swim outside posted swimming areas. a. How would the change in these small consumers most likely affect the island ecosystem? The yellow banding fades away as the juveniles mature. Predators that are normally controlled by alligators can become uncontrollable if there is decline in the species. a. a.Grass b. Grasshopper c. mouse d. Snake, Which organism in the food chain receives energy directly from a primary consumer? c. apex predators d. decomposers, Which organism represented by the energy pyramid has the most available energy? a.An increase in all species a. Its diet mostly includes snails, crustaceans, insects and fish, but young waterfowl and rodents will be taken if available. By using our site, you acknowledge that you have read and understand our Privacy Policy d.An increase in the number of frogs, What would most likely happen if the insect population significantly decreased? a.Grasshopper b. About the Smithsonian Conservation Biology Institute, #CheetahCubdate 9: An Ice Bucket Challenge. c.Their habitat would shift further south In 2018, there was one fatality here, nine major alligator bites and one minor bite on people. ecosystems. a.Frogs b.Terrestrial grasses The American alligator is a freshwater species, while the American crocodile can thrive in both freshwater and saltwater habitats. I II III IV top consumer c. energy stored in cells (5.4) Pw1 observed world price The American alligator, which is known to live in Florida, North Carolina and Oklahoma, has been listed as a threatened species since 1979 by the Fish and Wildlife Service. There are three firms, A;B; and C that produce electricity. Snake b. Bird c. eagle d. Beetle, Which two organisms in this food web receive energy directly from the beetle? American alligators are an important tale of reptile conservation and the importance of realistic solutions to extreme declines. Soon, the fish population also declines. Webproducer/autotroph. They can reproduce into their 50s. d.An increase in grizzly bear birthrate and survival, by killing the competitors of the other species, How could a predator increase the carrying capacity of another species in its habitat? f.Terrestrial grasses, Which organism in the food web represents the top consumer? Alligators and Hydrology Water depths and durations in the Everglades have been transformed by drainage and impoundment. Q1: What is the competitive price of a permit to emit 1 cubic foot of carbon monoxide? (5.4) (5.4) That in turn depends on the animals access to grazing, which depends on the number of llamas sent to the commons, as shown in the following table: What might happen to alligators in the south if the U.S. b.Plants get energy from the animals that consume them Solve two ways: using (a) the ideal gas model, (b) IT with water/steam data. By digging holes and leaving trails throughout marshes, they create habitats for fish and marine invertebrates. d. 150,000, According to the data given in the Pyramid of numbers, how many grass seeds must be produced to support 100 mice in this ecosystem? part may be reproduced without the written permission. (5.4) b.The terrestrial grass population would decrease WebThey make the soil clean. Their populations should go up because nothing else, except birds, eats them. They recycle nutrients into the soil. 12,000 Under consumption, which could lead to less profit. A) The element is more readily oxidized than hydrogen. August 2001, 40001 State Road 9336 2023 www.desmoinesregister.com. 0 d. Bears, As a general rule of thumb, about how much energy contained in the plants is available to the raccoons? C) The element is more readily oxidized than most other elements. c.Abundant salmon will allow bears to thrive and produce more offspring Similar to the ecosystem effects of Aldabra tortoises, these extinct tortoises modified the landscape through heavy grazing and soil disturbance (terraforming) but also through seed dispersal of endangered plants (Hansen et al. Alligators are most active between dusk and dawn. According to retired trapper Gator Bill Robb in 2018, "Raise your hands, look as big as possible, back up, and once youve made yourself look large, if the alligator doesnt retreat, get out as fast as you can in a straight line. Over consumption, which could lead to extinction. This investigation provides valuable insight into hatchling success and nest site selection, as well as impacts from flooding, predation, and infertility. (5.4) Terrifying ordeal from the neighbor who witnessed fatal alligator encounter, Wildlife officials investigate woman's death at golf community, In Florida, what's more dangerous than paddling with gators? The American alligator (Alligator mississippiensis) ranges throughout the southeastern United States, and alligators within Everglades National Park exist at the southern extreme of their range. Completed nests are about 3.5 feet high and twice as wide. A global-positioning anti-theft device installed by one car owner can produce a positive spillover to other citizens in a community. or, by Evelyn Perez, Florida International University. Hall, William C. Rose. Foxes, in turn, can eat many types of animals and plants. hmkFB}~#l6l+qsbZf~;Ke`RY ng**#s^2}5:I'::L`J LR5)ge$SbZ(h Alligator bites can result in serious infection. 0 c.Unlike nutrients, energy is not recycled and reused in an ecosystem a. Rather, Florida's population growth and demand for waterfront properties may be the cause for increased sightings. decrease. (5.4) a.They are an important food source for primary consumers "Anywhere there is standing water, an alligator might be found," the FWC said in a statement to USA TODAY. Did Billy Graham speak to Marilyn Monroe about Jesus? Make a donation to the Smithsonian's National Zoo and Conservation Biology Institute today! The critically endangered Chinese alligator differs from its American counterpart in subtle ways. By eating certain prey species Breeding birds use alligators to protect nests from raccoons, opossums, New measurements suggest rethinking the shape of the Milky Way galaxy, Astronomers discover two super-Earths orbiting nearby star, Developing multiple concentration gradients for single celllevel drug screening, Solving the mystery of protein surface interactions with geometric fingerprints, Second ring found around dwarf planet Quaoar, Science X Daily and the Weekly Email Newsletter are free features that allow you to receive your favorite sci-tech news updates in your email inbox. Plant b. Herbivore Number of llamas on the commons. a.The fish population would increase The wild population may be fewer than 150 individuals. You can induce a gator's gag reflex by jamming objects in the back of its mouth, and when it tries to reposition prey in its mouth, that's your chance to escape. This site uses cookies to assist with navigation, analyse your use of our services, collect data for ads personalisation and provide content from third parties. 3 Alligators are usually afraid of people, rarely bite humans for reasons other than food, and are most dangerous in the water or by the shoreline. (5.4) 'I saw the gator grab her. Question 4 30 seconds Q. Their ability to catch and eat seals depends on sufficient ice coverage, but many scientists predict that ice coverage may drastically decrease in the arctic due to global warming. Figure 1. Alligators can be found in practically all fresh and brackish water and sometimes in salt water. b.Decreased aquatic vegetation b. Fish and Wildlife Service were to reduce or eliminate the tags required to hunt alligators? Suppose firms are not held accountable for the pollution they produce. Unlike nutrients, energy is not recycled and reused in an ecosystem The adult diet typically consists of fish, turtles, small mammals, birds, and reptiles, including small alligators. Amphibians are good indicators of significant environmental changes. a. Washington, DC 20008. c.An increase in nutrients carried downstream The lowest level of consumer for an organism that must obtain food by eating other organisms. a.Increased terrestrial grass growth A) The vertebral column physically supports the skull and trunk. Largely nocturnal because of human persecution, they stay in their tunnels much of the day when humans are in the vicinity, as well as during cool weather and winter months. Mouse c. snake d. Hawk, Which of the following receives the least amount of energy in this food web? c.An increase in fish eggs that are laid How can you avoid getting attacked by an alligator? The MC curve is the marginal cost curve, A: 1. d. Aquatic vegetation e. Insects 0.75 a. Grasshopper b. a. Squirrel b. Beetle c. snake The female opens the nest in response to calls from the hatchlings when the eggs are ready to hatch. b.Abundant salmon will harm river nutrients and terrestrial landscapes Anyone who encounters one and believes it may pose a threat, should contact the Florida Fish and Wildlife Conservation Commission. What might happen to alligators in the south if the U.S. a. Amphibians, unlike people, breathe at least partly through their skin, which is constantly exposed to everything in their environment. The alligator is an indicator of ecosystem responses to Everglades restoration because it is sensitive to hydrology, salinity, and system productivity, all factors that are expected to change as a result of restoration. That in turn depends on the animals access to grazing, which depends on the number of llamas sent to the commons, as shown in the following table: A village has six residents, each of whom has accumulated savings of $100. This keystone species bears considerable importance in the health and function of south Florida's ecology. State law also prohibits killing, harassing or possessing alligators except under permit. Primary consumers what would happen if the decomposers were removed from the What would best explain why the mouse population is also experiencing a population decline? What are the chances of being bitten? 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.