Beaches & dunes. How long can you hold your breath? Genetic analysis indicates the sea otter and its closest extant relatives, which include the African speckle-throated otter, European otter, African clawless otter and oriental small-clawed otter, shared an ancestor approximately 5 million years ago. The facial structure and skull shape are different between the two, Gagne says. More specifically, it investigated how the choice of prey and habitat use affects the population of the southern sea otter ( Enhydra lutris nereis). However, it is coastal otters that have the shortest range. Estes and Duggins (1995) found that rebounding populations of sea otters in Alaska were indirectly affecting the recovery of marine kelp forests. Sea Otters Use Tools, and Archaeologists Are On the Case. 2. The interaction between sea otters, sea urchins and kelp forests has been studied as a model of the impact of predator-prey interaction on community ecology. ... Plant growth in a salt marsh: a case study of the scientific method. This preview shows page 1 - 2 out of 3 pages. Over 100,000 Portuguese translations of English words and phrases. Case study: Sea Otters → Urchins → Kelp. menu. California’s well being depends on keeping our world-famous coastal waters healthy and resilient in a rapidly changing world. The sea otter (Enhydra lutris) is a marine mammal living near the shores of the North Pacific, from northern Japan, the Kuril Islands and Kamchatka east across the Aleutian Islands and along the North American coast to Mexico.It has the thickest fur in the animal kingdom. Estes and his colleagues estimated the impact of killer whales on sea otter populations by comparing trends in population size and survival rates of individually marked otters between two adjacent locations on Adak Island-Clam Lagoon and Kuluk Bay. Using a progressive disclosure format, this case study teaches students how to apply ecological principles to a real-life ecological problem, namely, the decline in sea otter populations in Alaska. Firstly, people should know the importance of its niche. A sea otter rests on its back with its head, arms and flippers in the air, and looks like two lumps close together. However, starting in the early 1990s, Estes and his colleagues noted that otter population numbers were dropping precipitously. While scuba diving in the Aleutian Islands, Dr. Estes noticed places where the seafloor was covered with sea urchins and no kelp remained. Regardless of federal protection, sea otters are struggling to … Finance. It is considered to be the most important process in public relations.. Three elements are common … Thus the life of an Indian citizen in Bhopal was clearly much cheaper than that of a sea otter in America. (2 pts.) Report a Stranded Otter If you come across a sea otter you think is sick, injured or abandoned, please give it space and call The Marine Mammal Center’s stranding hotline at (415) 289-7325. What difference would it make if the southern sea otter (Core Case Study) became extinct primarily because of human activities? Figure A in next page shows the food web (i.e., a summary of the feeding relationships in a community) in kelp forests when sea otters are abundant. Open waters. Give. The sea otter should not be allowed to spread into Southern California coastal waters because it will reduce the value of fisheries. Over 100,000 Italian translations of English words and phrases. Deep sea. In fact, by the 1920s, the sea otter was at the brink of extinction — it was even thought to be extinct for a time. Numbers of sea otters in California have gone up in recent years but the range of sea otters has decreased. Describe how sea otters are a keystone species in their ecosystem. 1. You will do each one of these and answer questions. ... What difference would it make if the southern sea otter (Core Case Study) became extinct primarily b... A: Southern sea otters occur in the giant kelp forests in shallow waters along the Pacific coast of Nor... question_answer. A study conducted by Johnson et al. 2. A Otters are semiaquatic (or in the case of the sea otter, aquatic) mammals.They are members of the Mustelid family which includes badgers, polecats, martens, weasels, stoats and minks, and have inhabited the earth for the last 30 million years and over the years have undergone subtle changes to the carnivore bodies to exploit the rich aquatic environment. Case Study: Search for the Missing Sea Otters: An Ecological Detective Story PART 1 Adapted from: Mary E. Allen and Mark L Kuhlmann National Center for Case Study Education Modifications by Dr. Dechaine and Dr. Scoville Introduction and Question Sea otters are the smallest marine mammal and an important species in coastal marine ecosystems. Click on “case studies” in the top menu. We need your support to continue animal care and maintenance of the Aquarium. Eurasian otters (Lutra lutra) are semiaquatic, which means they split their time between land and water. 2. What difference would it make if the southern sea otter (Core Case Study) became extinct primarily because of human activities? Sea otter is a keystone species. offer an opportunity for scientists to study the long-term effects as the sea otter … Detailed solutions are available in the Student Solutions ... Biochemistry. offer an opportunity for scientists to study the long-term effects as the sea otter populations are harvested. Marketing. Using a progressive disclosure format, this case study teaches students how to apply ecological principles to a real-life ecological problem, namely, the decline in sea otter populations in Alaska. The decline in the sizes of sea otter populations inhabiting the Aleutian Islands, which was observed by Dr. Estes and his group, was indeed large. That’s why the Monterey Bay Aquarium is collaborating with state leaders, scientists and the public to restore and protect California’s treasured ocean resources and ecosystems. Share the love. The scientists came up with a hypothesis. Sea Otter Case Study Answers of them are equally great. ... That’s why archaeologists may be turning to ancient sea otter skeletons to study the evolution of tool use in the sea. And in one study, it was found that male river otters have a range of 12 and 80 km. Sea Otter Case Study Answers, what is the meaning of global warming essay, website to write essays for me reddit, how to cite an essay in a essay Prices starting from High School - $10 College - $14 University - $17 Master's - $22 Ph.D. - $26 High School - $10 per page A Otters are semiaquatic (or in the case of the sea otter, aquatic) mammals. What difference would it make if the southern sea otter ( Core Case Study ) became extinct primarily because of human activities? Bioengineering. Explain how the role of the southern sea otter in its ecosystem (Core Case Study) illustrates the population control principle of sustainability. We would like to show you a description here but the site won’t allow us. Therefore, the correct answer is coastal otters. What are three things we could do to help prevent the extinction of this species? ��ӹ�Қ &�!r�~�J1�B2\�����~�_�ʙp�RR2�c�7��L�JG�Ќq��7#. Crisis management is the process by which an organization deals with a disruptive and unexpected event that threatens to harm the organization or its stakeholders. add. provide the carnivorous component of the food chain in which they live. What could cause such rapid decline in the number of otters in this island chain of Alaska? The sea otter should not be allowed to spread into Southern California coastal waters because it will reduce the value of fisheries. 2. The southern sea otter is smaller than its similar counterpart, the northern sea otter. Clam Lagoon, the entrance from the open sea is too narrow and shallow for killer whales to get in. ... Want to see this answer and more? Once an endangered species as a result of fur trading, otter populations recovered and appeared very healthy and robust in the early 1980s. Then, in the 1700s and 1800s, hunters and fur traders killed so many that the population was devastated. Use the second law of thermodynamics (see Chapter What difference would it make if the southern sea otter (Core Case Study) became prematurely extinct because of human activities? If it were to extinct, other species who rely on it would as well be harmed. Portuguese Translation of “otter” | The official Collins English-Portuguese Dictionary online. (2009), examined how two diseases affect the population growth of sea otters. 10. entrance. Seventeen interviews were negative (63.0%) and two (7.4%) confused sea otters with pinnipeds.Sea otters were present in an area for more than one month according to six of the interviews. Kelp forest. Sure, you might decide it’s a good … Course Hero is not sponsored or endorsed by any college or university. Sea otter is a keystone species. This article outlines a study that suggests that thriving sea otter populations keep sea urchins in check, which in turn allow kelp forests to prosper. What are three things we could do to help prevent the extinction of this Species? History: On the coast of California during the 1700-1800s, the sea otter was hunted for its sleek and beautiful fur. Sea otters are keystone predators, whose presence has a far-reaching influence on the marine food web by affecting the population of sea … ENST201_Assign10_Sea_Otter_Case_Study_part2.docx - Case Study Search for the Missing Sea Otters An Ecological Detective Story PART 2 Do killer whales, Case Study: Search for the Missing Sea Otters: An Ecological Detective Story. Case Study: Search for the Missing Sea Otters: An Ecological Detective Story PART 1 Adapted from: Mary E. Allen and Mark L Kuhlmann National Center for Case Study Education Modifications by Dr. Dechaine and Dr. Scoville Introduction and Question Sea otters are the smallest marine mammal and an important species in coastal marine ecosystems. Tune into our LIVE Sea Otter Cam for your daily dose of sea otter cuteness. Detailed solutions are available in the Student Solutions ... Biochemistry. Case Study: Search for the Missing Sea Otters: An Ecological Detective Story PART 2 Do killer whales cause decline in sea otter populations? Sharks. Kuluk Bay is on an open coast, so sea otters there are exposed to killer whales. Firstly, people should know the importance of its niche. Missing Otters – Case Study Objectives Interpreting data from graphs and tables Practicing developing testable hypotheses Understanding indirect effects in biological communities Learning about sea otter, killer whale, and kelp forest ecology interactions with the kelp forests and the sea urchins have not really had any consequences that need to be currently studied. Management. Therefore, the correct answer is coastal otters. Donate now. Places that are overrun with urchins are known as “urchin barrens”. Critical Thinking 1. * Economics. Part 2 - Case Studies. 3. Business. What difference would it make if the southern sea otter (Core Case Study) became extinct primarily because of human activities? Keep in mind that while a good writing service should be affordable to you, it definitely shouldn’t be the cheapest Sea Otter Case Study Answers you can find. Sea otters can sometimes be seen off sandy beaches — and even local harbors. Since they swim so much, and get much of their food from the water, holdi… Fishermen also hunted these creatures because they believed that the otters were eating too many of the fish they wanted to catch. Read the sea otter case study and answer the questions at the end. What are three things we could do to help prevent the extinction of this Species? … Secondly, people should prevent using wild animal fur in order to have a more sustainable life style. provide the carnivorous component of the food chain in which they live. History: On the coast of California during the 1700-1800s, the sea otter was hunted for its sleek and beautiful fur. UCSD Researchers Get Grant To Study Psychedelics On Phantom Pain The grant, worth $1.3 million, will fund a clinical trial investigating a treatment for phantom limb pain. Show more Q&A. Animal care. Sea Otter Case Study Answers, thesis title proposal tagalog, how do you communicate essay, cdc dissertation grant The sea otter once ranged from Baja California to the Pacific Northwest to Russia and Japan. Without special training, most people can hold their breath for 30 seconds to a minute before they are pretty uncomfortable. Case study: Sea Otters →Crabs → Sea Slugs → Micro Algae → Eelgrass A new trophic cascade involving sea otters was recently discovered in a Central California estuary. Fishermen also hunted these creatures because they believed that the otters were eating too many of the fish they wanted to catch. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 9 pages of student work, plus an answer key!This A Sea Otter to the Rescue story study includes the following:• A Sea Otter to the Rescue story study title page for students• Before reading A Sea Otter to On some islands the sea otter populations declined by 90 percent in fewer than 10 years (see Figures 1 and 2)! The Quest for an Archaeology of Sea Otter Tool Use Biologists are delving into the origins of sea otter tool use and why some sea otters become experts while others don’t bother. Tips for spotting a sea otter. Sea Otter Case Study Answers of them are equally great. And in one study, it was found that male river otters have a range of 12 and 80 km. Students interpret data from graphs and tables and practice developing testable hypotheses as they work in groups to solve the mystery of the “missing” sea otters. Find answers to questions asked by student like you. What are three things we could do to help prevent the extinction of this species? Explain how the role of the southern sea otter in its ecosystem (Core Case Study) illustrates the population control principle of sustainability. Section 5-1 – How Do Species Interact? Subjects. Answers to all problems are at the end of this book. A Snail’s Odyssey, Tom Carefoot. Critical Thinking 1. The study of crisis management originated with large-scale industrial and environmental disasters in the 1980s. Thirdly, people should protect the environment where the sea otter lives. Between 1970 and 1971, the Alaska Department of Fish and Game plucked nearly 100 sea otters from the remote Aleutian Islands of Alaska, carted them down the northeast Pacific coast, and released … What are three things we could do to help prevent the extinction of this species? Arctic Tundra . What are three things we could do to help prevent the extinction of this species? They are members of the Mustelid family which includes badgers, polecats, martens, weasels, stoats and minks, and have inhabited the earth for the last 30 million years and over the years have undergone subtle changes to the carnivore bodies to exploit the rich aquatic environment. But before forging ahead, members of the alliance hope to find an answer to a conservation mystery: what caused 93 sea otters introduced to Oregon in the 1970s to disappear? Engineering. See all animals. In. ... Marine biology is the study of the sea’s diverse inhabitants and their relationships to each other and their environment. ... Want to see this answer and more? If they did it could give them a better understanding of. Wallpapers. Accounting. However, it is coastal otters that have the shortest range. 10 Each sea otter was given rations of lobsters costing US $ 500 per day. Describe the following types of interactions between species. Live cams. (2 pts.) Support our work. Changes in relative abundance of sea otters … how well they are reproducing and effectively replacing the population. Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes! Make at least one suggestion for strengthening this study design. All the evidence collected by Estes and his coworkers points to killer whales as the cause of the decline in sea otters: the increase in observed killer whale attacks on sea otters, the differences in sea otter survival and population trends at the two locations on Adak Island (Figures 2 and 3), and energetics data demonstrating that killer whales could have eaten enough otters for these … Sea Otter Case Study Answers, thesis title proposal tagalog, how do you communicate essay, cdc dissertation grant by Cindy Serraino | Oct 8, 2013 | sea otters. �{cܐ � [Content_Types].xml �(� �TKO�@������v��1��A�$b�)�v�Y^��قICQ�Ҥ�~��vgz����xT�䬛uXF�B�i�^Ǐ�-K0S����� �����&�6��Y�s�3�3��P��^�@�~ʝ�b About us. Start studying Environmental Science Final Study Guide Semester 2. Estes and his colleagues estimated the impact of killer whales on sea otter populations by comparing trends in, population size and survival rates of individually marked otters between two adjacent locations on Adak Island-, Clam Lagoon and Kuluk Bay. interactions with the kelp forests and the sea urchins have not really had any consequences that need to be currently studied. 1. Sea urchins are herbivores and feed on seaweeds like kelp. With the killer whale having access to the otters it provided a better food source for them. Sure, you might decide it’s a good idea to spend as little money as possible. Products. See all habitats. It does not say they continued to track offspring. Italian Translation of “otter” | The official Collins English-Italian Dictionary online. Leadership. A Otters are semiaquatic (or in the case of the sea otter, aquatic) mammals. What difference would it make if the southern sea otter (Core Case Study) became extinct primarily because of human activities? In the same year, a leading national daily 9 stated that approximately US $ 40,000 was spent on the rehabilitation of every sea otter affected by the Alaska oil spill. 1. Operations Management. Population Ecology Case Study: the Sea Otter by: Mattie Collins There are about 106,000 sea otters in A mystery disease is stranding sea otters in Alaska’s Kachemak Bay region. sea otter (Enhydra lutris) are also often included in the marine mammals, which constitute additional diversity and two additional invasions of the aquatic habitat within the order Carnivora in addition to the Pinnipedia (Berta et al., 2006). A summary of research studies about urchin populations and their relationship to kelp and otters; Sea Otter 101, Ocean Today, NOAA. Abstract. Using a progressive disclosure format, this case study teaches students how to apply ecological principles to a real-life ecological problem, namely, the decline in sea otter populations in Alaska. Sea otters have become more centrally located in their environments. Case Study – Southern Sea Otters: Are They Back from the Brink of Extinction? Why is it important for us to care about saving the southern sea otter species? The reason for this is that male and female coastal otters have range of a few kilometers of coastline. Read the sea otter case study and answer the questions at the end. 2. Do killer whales cause decline in sea otter populations? What happened to their diet when the otters disappeared? Estes and Duggins (1995) found that rebounding populations of sea otters in Alaska were indirectly affecting the recovery of marine kelp forests. A story study for A Sea Otter to the Rescue (of the Tails from History series) by Thea Feldman. Name:_ Block:_ Date:_ Search for the Missing Sea Otters: An Ecological Detective A Eurasian otter can hold its breath for twice that long, quite easily! What difference would it make if the southern sea otter ( Core Case Study ) became extinct primarily because of human activities? What’s Killing Alaska’s Sea Otters? Based on Figures 2 and 3 above, what can you conclude about the effects of killer whales on sea, The otters in the area where the killer whales can get into decreased more than the area that had a narrow. The sharp drop in sea otters may be due to them being eliminated. Between 1741 and 1911, a period of extensive hunting for sea otter pelts, known as "the Great Hunt", … The reason for this is that male and female coastal otters have range of a few kilometers of coastline. How does the story of the sea otter illustrate an example of a TROPHIC CASCADE? PK ! Habitats. * They are members of the Mustelid family which includes badgers, polecats, martens, weasels, stoats and minks, and have inhabited the earth for the last 30 million years and over the years have undergone subtle changes to the carnivore bodies to exploit the rich aquatic environment. Dr. James Estes has studied sea otters off the coast of Alaska since the 1970s. Answers to all problems are at the end of this book. 2. sea otter (Enhydra lutris) are also often included in the marine mammals, which constitute additional diversity and two additional invasions of the aquatic habitat within the order Carnivora in addition to the Pinnipedia (Berta et al., 2006). Keep in mind that while a good writing service should be affordable to you, it definitely shouldn’t be the cheapest Sea Otter Case Study Answers you can find. 3. Solution for What difference would it make if the southern sea otter (Core Case Study) became extinct primarily because of human activities? Students interpret data from graphs and tables and practice developing testable hypotheses as they work in groups to solve the mystery of the “missing” sea otters. Thirdly, people should protect the environment where the sea otter lives. 3. View Sea Otter case study answer sheet.docx from ECON 101 at Orange County Public Schools West Orange High School. Animal stories. The researchers in the case study had ruled out reproductive problems and migration, so one of the only other options would be elimination. The sea otter can usually be found in kelp beds, and looks very much like lumps of kelp. Figure A in next page shows the food web (i.e., a summary of the feeding relationships in a community) in kelp forests when sea … Sea otter. If it were to extinct, other species who rely on it would as well be harmed. Jul 20, 2015 | 2,600 words, about 13 minutes. Sea Otter Activity: Each person needs to first read through the handout. 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