Archive for the 'Endangered' Category

Endangered Ocelot

Friday, January 29th, 2010

This is Passport to Texas

Ocelots once roamed throughout Texas, Mexico, and into Arkansas and Louisiana. Jody Mays says today, only a few survive in the thick brush and shelters of the Lower Rio Grande Valley.

As far as we know, there less than 100 ocelots left in the United States. The ocelot’s range has disappeared, and now they only occur in the southern most tip of Texas, and that’s the only place in the whole United States that they occur.

Mays is a Wildlife Biologist at Laguna Atascosa Natural Wildlife Refuge. She explains reasons for the population decline.

Usually with an endangered species, you have multiple impacts that they get hit with. For the ocelot, the biggest one was the habitat loss. Some estimates say that over 95% of the native habitat in Texas has been altered. A lot of the thick habitats have been cleared for agriculture, and for development, and for other purposes. Another associated impact with that is habitat fragmentation, and that’s where, you say, have one large piece of thick habitat that gets cut up into smaller pieces that are farther and farther apart. Loss of genetic diversity is another big issue, and that’s as a result of this habitat loss and fragmentation.

That’s our show for today…supported by the Wildlife Restoration Program… helping to fund the operations and management of more than 50 wildlife management areas…

For Texas Parks and Wildlife…I’m Cecilia Nasti.

Head-starting the Houston Toad

Thursday, November 26th, 2009

This is Passport to Texas

[Houston toad trill]

You’ll only hear that sound in a small area of Texas.

Like Gauss, or Bastrop, or places that a lot of people haven’t heard of, but those people that know them, that’s what they think of as home.

A home they share with the endangered Houston Toad… an amphibian that doesn’t have a voice when it comes to how humans alter their shared habitat… alteration of habitat is what put the toad in peril.

Mike Forstner is a biology professor at Texas State University, and for nearly two decades he’s worked to keep the toads from fading into oblivion…starting with habitat recovery. Today, with partners including the Houston Zoo, they’re raising toads—called head-starting—to supplement existing populations.

Head-starting is the last stand. It’s when your back’s to the wall, and you’ve got nowhere else to go. An ideal situation would have been that we recovered the habitat and that the populations became reinforced because we recovered the habitat. But we got caught—it stopped raining. And as soon as it stopped raining, we ran right out of room for natural recovery.

Unnatural recovery is better than no recovery at all. Tomorrow we attend a release of head-started toads in Bastrop County.

The Wildlife restoration program supports our series…For Texas Parks and Wildlife…I’m Cecilia Nasti.

Endagnered Species: Texas Snowbell

Friday, November 20th, 2009

This is Passport to Texas

When the wind blows, its leaves shimmer, and in the spring, its beautiful white flowers bloom. It was this beauty that inspired J. David Bamberger to save the endangered Texas Snowbell.

Bamberger owns 55 hundred acres in Blanco County and is an avid conservationist. But one of his greatest success stories is the Texas Snowbell. In 1987, state officials estimated there were 87 Snowbells in Texas. Since then, Bamberger’s team has planted and maintained 682 more.

I spent five years going door to door, well ranch to ranch out in Edwards County, Real County, Val Verde County. And it took me five years to gain access to a ranch to look for the plant.

Once he did, Bamberger began collecting the seeds from the plants he found and replanting them on the ranches. But even with all his success, Bamberger says the Texas Snowbell will likely always be endangered.

Now the scientists are saying that they won’t be delisted until we have 10,000 plants. That’s never going to happen, never ever going to happen. I think they need to reassess that number because before we came along the reintroductions were basically zero.

Bamberger continues to monitor Texas Snowbells and conduct research at his ranch, keeping the Texas Snowbell alive and well.

That’s our show…With research and writing help from Gretchen Mahan. For Texas Parks and Wildlife, I’m Cecilia Nasti.

Recovery Implementation Program

Thursday, November 19th, 2009

Passport to Texas from Texas Parks and Wildlife

The Edwards Aquifer Recovery Implementation Program, or RIP, protects endangered and threatened species in the Edwards Aquifer.

Many of these species are no more than an inch long. The Comal springs riffle beetle is even smaller…only two millimeters long.

But Parks and Wildlife water resources branch chief, Cindy Loeffler, says preserving the species is crucial to the ecosystem.

These are, you know, you’ve heard the cliché canary in the coal mine. If we want to truly protect natural resources, fish and wildlife, these unique ecosystems. These species are indicators of the health of those ecosystems.

Loeffler also says if the program protects the identified species, it will most likely save many more in the process.

We have some species that there’s very little known about. And these are in a way the tip of the iceberg of the threatened and endangered species that are found associated with the Edwards Aquifer. There are many more species that are not listed that are found no where else.

Many of these species are found no where else in the world…like the San Marcos blind salamander and Texas wild rice. And pumping water from the Edwards Aquifer alters the habitat, putting these species in an unstable environment.

That’s our show…with research and writing help from Gretchen Mahan. Discover how you can help at passporttotexas.org. For Texas Parks and Wildlife I’m Cecilia Nasti.

Troubled Waters: Whooping Cranes

Monday, September 28th, 2009

Passport to Texas from Texas Parks and Wildlife

[Whooping crane calls]

Last winter, twenty-three out of two hundred and seventy whooping cranes died after a decline in blue crab and wolfberries, two of the crane’s main food sources.

Tom Stehn is the whooping crane coordinator for the U.S. Fish and Wildlife Services. He says the decline is linked to two sources: drought and diversion of Texas rivers.

The human consumption of water has been increasing annually as the population of South Texas grows. This is a very critical issue for the bays that in some way we need to figure out a mechanism so sufficient freshwater inflows reach the bays to keep them productive.

Stehn says the fate of the whooping crane could rest in the hands of Texans.

There are management actions that people will have to do such as conserve water. And those are the choices that Texans have to make.

And many new threats are coming onto the scene.

As issues get worse for the whooping cranes, inflow issues, housing development issues, wind energy development, possibly taking away habitat from the cranes in migration. There’s a lot of threats out there right now, so I’m really leery of how the whooping cranes are going to do in the future.

The good news is there are sixty-one nesting pairs of cranes, which make some researchers hopeful that the population will increase next year.

That’s our show…with research and writing help from Gretchen Mahan. For Texas Parks and Wildlife I’m