Tag: otters

Captive Otters Adopt Orphaned Pups

  • Now that surrogate moms raise the otters, the goal is for the pups to never see or hear a human. To get up close to the pup, Ann had to put on a Darth Vader costume of sorts. (Photo by Angela Hains)

For animals in most zoos and
aquariums, the door from freedom
to captivity only swings one way.
But at the Monterey Bay Aquarium,
sea otters from its exhibits teach
wild sea otter orphans how to
survive in the ocean. Ann Dornfeld
has the story:

Transcript

For animals in most zoos and aquariums, the door from
freedom to captivity only swings one way. But at the
Monterey Bay Aquarium, sea otters from its exhibits teach
wild sea otter orphans how to survive in the ocean. Ann
Dornfeld has the story:

Rosa has her baby in a headlock. That’s actually how
southern sea otters hold their young.

“The pup is essentially unconscious – it’s very much
asleep, and Rosa is holding it as a female would in the
wild: she’s got it sort of teed off to her side with a paw
around its neck.”

Andy Johnson is the director of the Monterey Bay
Aquarium’s Sea Otter Research and Conservation
program.

By the end of the19th century, sea otters had been hunted
to extinction in some parts of the Pacific.

Lilian Carswell is with the U.S. Fish and Wildlife Service.
She says these days, pollution and disease are sea otters’
biggest threats. And she says a lot of other species
depend on otters’ survival.

“Sea otters are important for a number of reasons. One is
that they’re a top predator in the nearshore marine
ecosystem and they play an important role in structuring
what that ecosystem looks like.”

Hungry sea otters keep sea urchin populations in check.
When urchins overpopulate an area, they can mow down
entire kelp forests that provide food and shelter for
hundreds of species.

So to help conserve the otter population, Andy Johnson
and his team at the Monterey Bay Aquarium pair orphaned
pups from the wild with the female exhibit otters. The goal
is for the surrogate mother to not only care for the pup, but
also to teach it all the skills it will need to be released back
into the wild at about six months old.

A volunteer has just tossed some food into the pool where
Rosa and the orphaned pup are swimming. Rosa grabs
the live crab as the pup watches.

“Rosa’s quite skilled with those, so she’ll pretty much take
that apart in a few minutes. We’ll have to watch the pup
and see if the pup approaches the crab without getting
pinched. I have to admit it’s quite amusing to see these
young animals confronting these crabs ’cause these crabs
are pretty formidable on their own.”

Rosa ends up breaking off a leg for her adopted pup, who
decides the shell is too much work. Before long, though,
the pup will learn some of the same impressive skills that
adult sea otters have – like how to use tools to open clams
and sea urchins.

Before the surrogate program began, workers and
volunteers used to hand-rear these pups. They’d even
take the pups swimming in Monterey Bay to acclimate
them to their future home.

But that made the released otters expect food from
boaters and other people they encountered in the bay.

Now that surrogate moms raise the otters, the goal is for
the pups to never see or hear a human. We’ve been
watching the sea otters interact from a TV monitor near
the pool. To get up close to the pup, I have to put on a
Darth Vader costume of sorts – starting with a huge black
nylon poncho.

(sound of the poncho)

Ann: “This is a welding mask?”

Andy Johnson: “A very cheap welding mask.”

Rosa isn’t fooled. As I approach the pool, she shoots over
to see whether I have food.

(sound of the otter sniffing around)

Rosa was a rescued pup. She was hand-reared before the
surrogate program began. After she was released into
Monterey Bay, she had to be recaptured because she was
jumping on kayaks and divers.

“We found that with the sea otters, putting them with an
adult female in a fairly shallow pool for six months far
outweighs whatever we were doing trying to raise these
pups.”

Sea otter populations are recovering at a slow pace in
California. But this program is contributing to the
population.

Johnson says the apparent survival rate of the re-released
pups is now about as good as that of newly-weaned pups
in the wild. Some have even successfully raised their own
pups, using skills they picked up from an exhibit otter at
the aquarium.

For The Environment Report, I’m Ann Dornfeld.

Related Links

Signing Up Landowners for Wildlife Corridors

  • Planting hazelnut, red oak and other native species will produce nuts and acorns that many different kinds of animals will eat. Migration corridors connecting larger natural areas are critical for many kinds of animals. (Photo by Lester Graham)

There is growing concern about the loss of wildlife habitat. For decades, development has been spreading into areas that were once home to many different kinds of animals. The land has been cleared or altered so that a lot of the food sources have disappeared. The government has tried to set aside some parks and preserves, but biologists say many species of wildlife need much more space. The GLRC’s Lester Graham reports that’s why more and more groups are approaching private landowners:

Transcript

There is growing concern about the loss of wildlife habitat. For decades
development has been spreading into areas that were once home to many
different kinds of animals. The land has been cleared or altered so that a
lot of the food sources have disappeared. The government has tried to
set aside some parks and preserves, but biologists say many species of
wildlife need much more space. The GLRC’s Lester Graham reports
that’s why more and more groups are approaching private landowners:


(Sound of tree planting)


Ed Harris is digging into the dirt with a dibble bar… a tree planting tool.


“We’re planting American hazelnut seedlings. They grow vigorously
and produce nuts in about five years for white tail deer, turkey, grouse,
and even black bear.”


Harris owns this piece of land. He and his wife Elaine are getting a little
help planting the hazelnuts. A couple of young guys from neighboring
property are here, and a couple of guys from a not-for-profit organization
called Conservation Resource Alliance are working too. Ed Harris says
he’s in a partnership with that group…


“We wanted to improve the wildlife habitat. That was one of our goals
and that was one of the reasons we got together with Conservation
Resource Alliance to enhance the area. You know, you hear of so much
development now and taking trees and cutting them and bulldozing. Do
we want to see the land in condominiums or rather see it in a natural
state? And that was an easy choice for us.”


But it’s not so easy for some other private land owners. It’s really
tempting to sell scenic land like this to developers who offer big bucks.


Those who don’t sell often want to improve the land for wildlife, but that
can be expensive. There are government programs… but, a lot of the
time private landowners are reluctant to sign up. They don’t like the
bureaucratic red tape… and some don’t like idea of a government agency
telling them what they can or cannot do with their own land.


Groups like the Conservation Resource Alliance – the CRA for short –
are aware of that reluctance and that’s why they approach landowners
carefully.


Jeff Brueker is with the CRA. He says they don’t come in with a plan…
they sit down with the landowner. He’s been working on a plan with Ed
Harris for a couple of years.


“And when we can meet with a landowner that has some of those same
goals in mind and we can come to an agreement on some of their goals
matching with our goals, then we’ll go into a partnership together and
work at that.”


The goals include keeping certain wildlife travel areas – especially along
streams – inviting to wildlife so animals such as black bears, otters and
bobcats can migrate from one large natural area to another.


Brueker says this approach works because his organization and the
landowner work together to make it happen… including spending days
like this… planting hazelnuts and American red oak trees that will
provide food for wildlife for years to come. Brueker says this kind of
effort will probably mean long term protection of the property…


“In other words, if we help a landowner plant a hundred oaks on his land,
he’s looking at those 20 years later, showing that to his heirs, saying
‘Look, I planted those trees; I’ve been watching how they’ve been
growing,’ it just helps leave a legacy on the land.”


But getting one landowner to establish better wildlife habitat is not
enough. These kinds of groups are trying to build larger wildlife
corridors. That means they want Ed Harris… and they want his
neighbors… and their neighbors… to establish a huge area of food and
habitat for wildlife.


Programs across the country go by a lot of different names. The CRA
calls its program “Wild Link.”


Jeff Brueker’s colleague, Matt Thomas, says it’s connecting the dots
between properties, and… getting the private landowners on board takes
time…


“It’s kind of a door-to-door, kitchen table sort of recruitment. We start
by literally knocking on doors, doing presentations to groups that can
maybe share that information. We rely heavily on neighbor-to-neighbor
contact, where one landowner is having some successes and some
excitement about participating with Wild Link, they’re inclined to tell
their neighbors that ‘Hey, the connections work, if you can participate
too.'”


Groups like the Conservation Resource Alliance note that working with
private landowners is a critical piece of the puzzle in restoring wildlife
habitat. Of the one-point-nine billion acres in the lower 48 states, one-
point-four billion is in private hands. That’s 72 percent… nearly three
out of every four acres on average. Without private landowners lending
a hand… habitat for wildlife would be limited to isolated pockets in
government owned parks.


For the GLRC, this is Lester Graham.

Related Links

Reintroducing the Otter

A coalition of industries, institutions and individuals is making sure
that a piece of their state’s natural heritage is returned. The Great
Lakes Radio Consortium’s Bill Flynn reports on the
three-hundred-thousand dollar New York River Otter Project: