Python Forecast: Cloudy

In 2008 the US Geological Survey published a report that said that the entire southern third of the United States could provide habitat for the invasive Burmese python that has been roiling the Florida Everglades ecoystem.

A recent paper in the journal Integrative Zoology says that occasional hard freezes and widespread winter temperatures that are too low for too many months of the year to allow the snakes to digest food will keep the snakes in the Everglades.

Interestingly, one of the authors of that paper is a python breeder. Another two are with USDA Wildlife Services. The lead author, a professor at a veterinary school testified before Congress in 2009 against listing constrictors as an injurious animal. (The fifth author is an expert in Burmese python digestion.)

Read the article in Integrative Zoology

A previous paper in PLoS ONE reached a similar conclusion, but for a different reason. This paper reasoned that there wasn’t enough marshy habitat north of the Everglades for pythons to spread. One notable finding in that paper was that, given climate change, the rainforests of the Pacific Northwest might someday become warm enough to be suitable habitat for pythons.

The PLoS One paper is open access.

The question is, how big of a worry is pythons crawling their way out of the Everglades into the rest of the South compared to the worry pythons becoming established in some other warm, swampy place in the United States due to the release of unwanted pets?

I would say that pythons crawling north from the Everglades through Disney World to reach the Okefenokee Swamp is a minor concern. Having another area of the US become infested with released pythons is something worth keeping an eye on.

Map: From the original 2008 USGS report. Green shows areas of the continental United States with climate matching that of the pythons’ native range in Asia.

Non-native Species and Democracy

If you have some time and are in the mood for some Big Thoughts, read “What’s a Monkey to Do in Tampa?” which ran in yesterday’s New York Times Magazine. As a Sunday magazine, this is a publication for a general audience, so it is not interested in technical details as much as big ideas.

Writer Jon Mooallem goes way big in the piece, which is, after all about a macaque monkey, not native to North America, fitting it in to the American notion of freedom and a climate of political rancor lacking in a democratic ideal of compromise — that last theme perhaps a needed tie-in considering the monkey’s location and the location of this week’s Republican Convention.

Not mentioned in the article is that in Florida, the land of invasive (that is, harmful) non-native species like pythons, apple snails and melaleucas — monkeys (and there are whole troops of wild monkeys in the state) are relatively benign.

Mooallem is a deft writer, so you will have fun. And the Florida Fish and Wildlife Conservation Commission plays a starring, although not heroic, role.

Read The NY Times “What’s a Monkey to Do in Tampa?” here.

Checking for White Nose in Florida

The U.S. Forest Service, Florida Fish and Wildlife Conservation Commission and the University of Florida have teamed up to conduct a five-day “Bat Blitz” in Apalachicola National Forest in northern Florida to test for white nose syndrome and the general health of the area’s bat population.

Read all the details on the USDA Blog.

Photo credit: U.S. Forest Service photo by Porter Libby.


 

Oregon and Florida Propose Bear Plans

Black bearThe first update to Oregon’s bear management plan in 14 years was announced late last month. Most of the bears killed in Oregon last year were hunted, an article in the Oregon Mail-Tribune reports:

1,772 bears were killed statewide, with 1,346 of them killed by sport hunters and another 352 bears killed as a result of damage incidents, the draft states. Along with the 22 bears killed over safety complaints, another 52 died as a result of miscellaneous categories such as roadkill, accidental death or poaching.

The plan is expected to be approved in June.

Read the Oregon Mail-Tribune article, here.
Find a 60-page PDF of the draft management plan from Oregon Department of Fish and Wildlife, here.
Read the ODFW press release, here.

Florida has revised its draft black bear management plan after receiving 2,500 public comments on the original draft of the plan. The plan will remove the species for the state’s list of threatened species. It will also create seven black bear management units. This plan is also expected to be accepted in June.

Read an article in the Palm Beach Post News.
Read the Florida Wildlife Commission press release, here.
Find the draft management plan, here.

Photo: Black bear, courtesy US Fish and Wildlife Service

For Better Genetics, Use Habitat Clusters

by Louise HuntHabitat clusters can improve the genetics of rare species, such as the Florida scrub jay, says a recent paper in Biology Letters.

The research focused on the genetics and available habitat for the Florida scrub jay, but the findings are applicable to other rare species, the paper says.

“We present a detailed case study of one highly fragmented, endangered species (Florida Scrub-Jay) showing the importance of keeping habitat gaps as narrow as possible, in order to maintain gene flow among populations,” says John Fitzpatrick, director of Cornell Lab of Ornithology and one of the authors of the paper. “Habitat gaps greater than a few kilometers separating two populations reduce movement of jays across them sufficiently to cause genetic isolation of the two populations. This highlights the importance of maintaining or restoring habitat ‘stepping stones.'”

Read the paper here — with subscription or fee.
Read the Cornell Lab of Ornithology press release here.
Read the Cornell Lab of Ornithology blog on the topic here.
Read the Volusia County (Florida) web page about the research, while it was in progress, here.

Photo: Florida scrub jay by Louise Hunt, courtesy of the Cornell Lab of Ornithology

Bear Hunts

Last week the Florida Fish and Wildlife Conservation Commission announced that it would go ahead with its black bear management plan, as well as with the plan to remove the animal from the state’s threatened species list. (Read the press release here. For the management plan itself, go here.) Florida has seen an increase in black bears, which has fueled speculation that the Commission might allow bear hunting in the future, a point mentioned in this article in the Tampa Bay Newspapers.

As black bear populations grow in the East, discussion of hunting as a management tool is prevalent. This NPR story on bear population increases in the Appalachians addresses the issue. Earlier this winter the desire to have fewer bears in suburban areas in New Jersey was contrasted with the desire of some not to kill any bears. Read one of the many stories covering the controversy at NJ.com.

Photo of Florida black bear cub courtesy of the Florida Fish and Wildlife Conservation Commission.

Bear Hunts

Last week the Florida Fish and Wildlife Conservation Commission announced that it would go ahead with its black bear management plan, as well as with the plan to remove the animal from the state’s threatened species list. (Read the press release here. For the management plan itself, go here.) Florida has seen an increase in black bears, which has fueled speculation that the Commission might allow bear hunting in the future, a point mentioned in this article in the Tampa Bay Newspapers.

As black bear populations grow in the East, discussion of hunting as a management tool is prevalent. This NPR story on bear population increases in the Appalachians addresses the issue. Earlier this winter the desire to have fewer bears in suburban areas in New Jersey was contrasted with the desire of some not to kill any bears. Read one of the many stories covering the controversy at NJ.com.

Photo of Florida black bear cub courtesy of the Florida Fish and Wildlife Conservation Commission.

Pythons Devouring Everglades

Small mammals have been almost completely wiped out in the Everglades by invasive pythons, a study in the journal Proceedings of the National Academy of Sciences said Monday.

If this sounds like journalistic exaggeration to you, it did to me too. Doubting the news reports, I went straight to the open access PNAS paper (in early release). Surveys from 2003 to 2011, the paper says, saw a:

“…99.3% decrease in the frequency of raccoon observations, decreases of 98.9% and 87.5% for opossum and bobcat observations, respectively, and failed to detect rabbits.”

Why should you care? Check out this map of potential python habitat in the U.S. Though many doubt pythons will spread out of south Florida, the risk is there.

Read the PNAS paper here. (A PDF)

Read the US Geological Survey press release here.

A story in the Washington Post is here. Google says that there were over 700 news reports on this. Here’s another from The Atlantic Magazine’s blog AtlanticWire.

The US Fish and Wildlife Service recently banned the important and interstate transport of pythons and other constrictors. Read more about that here.

Photo by Mike Rochford , University of Florida, used courtesy of the US Geological Survey

Media Buzz: Lions and Wolves and Bears (and Owls)

The past 30 days have been rich in wildlife stories that may geA male wolf from Oregonnerate questions in your state and influence public opinion:

This past weekend the birth of two (or possibly three) cubs to a black bear named Jewel in Ely, Minnesota was captured on a solar-powered video camera.

A report from WCCO, a CBS television station says that 500 schools were following the video feed. (Which makes it unfortunate that the cubs were born on a Sunday.) It also says that:

 “Jewel is the younger sister of Lily, who gave birth before the Internet in 2010. One of the bears that Lily gave birthto was Hope, who is believed to have been killed by a hunter last year.”

See the whole story, including video, on the station’s website, here.

In Florida, 2012 has been a bad year for the endangered Florida panther. Four of the animals have been killed so far this year, says an article in the Fort Lauderdale Sun-Sentinel. In 2011, the article says, the 24 Florida panther deaths were off-set by the 32 panther cubs that were born.

Read the whole article, here.
When Florida Fish and Wildlife Conservation Commission issued a press release on Jan. 12, only 3 panthers had died. Read that press release, here.

On Dec. 28 an Oregon wolf crossed the state border into California, making it the first wild wolf known in the state in nearly 90 years. The young, male wolf’s location is known because it has a GPS collar. It is officially known as OR7, but has been nicknamed “Journey.”

Read more in the Los Angeles Times, here.

Finally, the news reports on the irruption of snowy owls, continue. We reported on this nearly two months ago (read that post, here), but new outlets continue to report on it, including, last week, The New York Times. You can read the NY Times story here.

Photo: Not necessarily OR-7, but another light-colored, collared male wolf in Oregon. Courtesy Oregon Department of Fish and Wildlife

Florida’s Researcher Spotlight: Jim Rodgers

As we begin a recurring feature, profiles of state research biologists, we find that the state of Florida has already been profiling their own researchers for quite some time. So why not get the party started early, with this profile of Jim Rodgers, ornithologist.

Jim Rodgers has always wanted to be a wildlife biologist, well, either that or a professional surfer or fishing boat captain. He’s adjusted his career goals only slightly since his mid-teens, switching from marine biology to birds.

Consistency has paid off: Rodgers has studied wood storks and snail kites, two of the continent’s most fascinating bird species. Up next? Gull-billed terns.

Read the entire profile on the Florida Fish and Wildlife Conservation Commission website, here.