how sea otters help save the planet worksheet answers

How sea otters help save the planet answers?

As top predators, sea otters are critical to maintaining the balance of nearshore ecosystems, such as kelp forests, embayments and estuaries. Without sea otters, sea urchins can overpopulate the sea floor and devour the kelp forests that provide cover and food for many other marine animals.

What do otters do for the environment?

Otters also have a pivotal role in river ecosystems. They are predators, meaning they help control the populations of food species they prey upon. This affects the ecosystem as a whole, and as a result, their presence is a signal that the ecosystem is healthy.

How do sea otters help climate change?

With the protection sea otters provide, these forests flourish. Kelp forests that are guarded by sea otters can sequester up to 12 times more carbon from the environment. Researchers have found that the presence of sea otters increases kelp forest carbon storage from 4.4 to 8.7 megatons annually.

How does the presence of kelp influence water carbon dioxide levels?

Despite their short lives by plant standards, kelps siphon huge amounts of carbon from the atmosphere—what scientists call “primary productivity.” They take carbon dioxide from the air and turn it into sugar fuel with the help of sunlight and water, releasing oxygen back into the air.

How sea otters help save the planet quizlet?

The sea otters keep the population of sea urchins down, which allows the kelp forests to grow, & helps keeps kelp forests from being destroyed. we need kelp forests because they provide biodiversity.

Why is it important to save sea otters?

They eat sea urchins and other invertebrates that graze on giant kelp. Without sea otters, these grazing animals can destroy kelp forests and consequently the wide diversity of animals that depend upon kelp habitat for survival.

How can we help river otters?

In honor of World Otter Day, May 25, here is a list of 25 things large and small you can do to help protect otters.

KNOW YOUR WATERSHED! Choose a nearby stream, lake or marsh. …
VOTE VOTE VOTE. …and speak out, both locally and nationally. …
PICK UP TRASH. …and dispose of it properly. …
DRIVE SLOWLY.

What are sea otters adaptations?

Sea otters exhibit numerous adaptations which help them survive in their challenging marine environment. Long whiskers help them to detect vibrations in murky waters and sensitive forepaws, with retractable claws, help them to groom, locate and capture prey underwater, and use tools.

What are 3 interesting facts about sea otters?

12 Facts About Otters for Sea Otter Awareness Week

Forget everything you thought you knew about otter species. …
Otters have some interesting relatives. …
Most sea otters call Alaska home. …
U.S. and international law protects threatened sea otters. …
Sea otters eat 25 percent of their body weight in food every day.

How are sea otters helping marshes?

This sea otter, about to eat a crab in the Elkhorn Slough National Estuarine Research Reserve, is cute, sure. But more importantly, it’s indirectly combating some harmful effects of agricultural runoff and protecting the underwater ecosystem.

What animals help fight climate change?

Five particular species — African elephants, sea otters, tapirs, whales, and wolves — play an even bigger role. As keystone species, these animals are vitally important to their environments and help stabilize our global climate system.

Why sea otters are a keystone species?

Sea otters are a “keystone species” which means that they can exert top-down pressure via predation on sea urchins, which are grazers upon kelp. As urchin density decreases from sea otter predation, so does the grazing pressure on kelp and as a result kelp forests flourish in the presence of sea otters.

How do sea otters help kelp?

The presence of sea otters can protect a kelp forest. They eat large amounts of sea urchins, which keeps the creature’s numbers in check and prevents the destruction of the kelp forest. Sea otters are a keystone species of the coastline ecosystem.

How do otters play a role in managing carbon dioxide levels?

More otters mean more kelp and since the plant is particularly good at capturing carbon through photosynthesis, this also could mean less CO2 in the atmosphere. (During photosynthesis, plants like kelp absorb carbon dioxide, which along with water and energy from the sun, they use to convert it to organic matter.

How do otters use kelp?

Sea otters spend all of their time in the ocean, including sleeping. Since they must sleep at the surface, they often wrap themselves in giant kelp to keep from floating away. By controlling sea urchin populations, sea otters promote giant kelp growth, as that species is a favorite of sea urchin grazers.

What role do sea otters play in their ecosystem quizlet?

Sea otters are an example of a keystone species in the kelp forest ecosystem. … Sea otters eat sea urchins and keep the population of sea urchins in balance. If there are too many urchins than the urchins will eat the kelp and destroy the kelp forest which ultimately affects the other living things in the ecosystem.

Why should we help preserve kelp forests?

Shelter sea life

Kelp forests provide food, nursery areas, and shelter—including protection from predators and storms—for hundreds of commercially and recreationally important fish species as well as West Coast marine wildlife.

What does a sea otter eat?

Diet / Feeding

Southern sea otter consumes many types of prey including sea urchins, snails, clams, abalone, mussels, crabs, scallops, fish, barnacles, octopus, worms, and squid, which it captures with its clawed paws, not its jaws.

What are three things we could do to help prevent the extinction of sea otter?

12 Ways You Can Help Sea Otters

Reduce, reuse, and recycle whenever you can.
Dispose of hazardous wastes properly.
Grow a garden. …
Use nontoxic household cleaning products.
Don’t litter or dump materials into storm drains.
Pick up after your pets.
Use less water.
Purchase sustainable, recycled, biodegradable goods.

Why otters are the best?

There’s no denying it: in the hierarchy of awesome animals, otters are truly the best of the best. They’re smart, clever, funny, and absolutely adorable. Plus I always have a soft spot for animals that live on land and in water. … However, most otter populations are currently considered endangered.

What do humans use sea otters for?

Otters serve a key role in maintaining healthy kelp forests along the California coast. … Human activities have the potential to increase disease transmission and the flow of pollutants into the marine environment, but with the otters’ help, we are building our understanding of nearshore ocean health.

How do river otters protect themselves?

Many species of otters, such as the North American river and giant river otter, have strong teeth, which they use to ward off predators. Certain otters, like the giant river otter, make a loud snorting noise when faced with danger to alert other otters.

Are river otters protected?

In the United States Otters are protected under the Endangered Species Act. This is due to the fact that the conditions they live under could be compromised easily and that could lead to a significant reduction in their numbers in very little time.

Are sea otters and river otters the same?

In California, sea otters are most often seen around Monterey Bay and Elkhorn Slough. … Sea otters are twice the size of river otters, and are never far from the ocean. They have enormous back flippers, and often swim on their backs with their big flippers sticking out of the water.

How do sea otters maintain homeostasis?

Although sea otters store body fat, they do not accumulate body fat as copiously as other marine mammals. Thus, in order to maintain homeostasis in their marine environment, sea otters rely heavily on the heat energy supplied by their rapid metabolism, and thus require a regular supply of food.

What is special about sea otters?

Its fur is the densest of any animal on Earth—an estimated 1 million hairs per square inch. That’s because, unlike its fellow marine mammals, it has no blubber to keep it warm. … The sea otter is one of the few mammal species on Earth to use a tool to help it hunt and feed.

What is special about an otter?

THEY HAVE THE THICKEST FUR OF ANY MAMMAL IN THE ANIMAL KINGDOM. Otters can have up to one million hairs per square inch. There are two layers of fur—an undercoat and then longer hairs that we can see. … Otter pups have so much air trapped in there, they actually can’t dive under water, even if they want to.

What are 5 interesting facts about sea otters?

Here are 10 Amazing Sea Otter Facts:

Sea Otters are one of the few animals that use tools. …
Newborn pups cannot sink or dive.
Sea Otters have built in pockets under their arms.
A group of Sea Otters resting together is called a raft.
Sea Otters are the only marine mammal without a layer of blubber (fat).

How have the otters helped in Elkhorn Slough?

They rescue, treat and release injured otters; raise and release stranded pups through their surrogate program; provide care for sea otters that can’t return to the wild; and conduct scientific research.

What are sea otters habitats?

Sea otters inhabit coastal areas and islands of the eastern and western North Pacific Ocean. Alaska sea otters inhabit the coast of Alaska, including the Aleutian Islands, and south along British Columbia and Washington. … California sea otters are found off the coast of central California; between Half Moon Bay and Pt.

How otters keep the kelp forest ecosystem stable?

Fortunately, sea otters feed on sea urchins resulting in the preservation of the kelp forests. More kelp forests result in fewer urchin barrens, as well as an increase in the absorption of carbon dioxide from the atmosphere through photosynthesis and release oxygen back into the air.