Old Biophilia

Weekly dose of cuteness
June 25, 2010, 4:37 pm
Filed under: Diversity in the animal world, Weekly Cuteness

Both photos via National Park Service

A litter of 3 mountain lions (Puma concolor) was born late last month in the Santa Monica Mountains….the first documented litter in 6 years!!!  The National Park Service has been tracking a population of about 19 mountain lions in the Santa Monica Mountains, Simi Hills and Santa Susana Mountains to better understand how they live amidst so much development.

The birth of the kittens is exciting for reasons other than just cuteness. Their father made headlines in spring of 2009 after he successfully crossed (over? under?) Highway 101 to enter the mountains last spring…..bringing new genetic material along with him. Here in Southern California, there is limited open space and a serious lack of wildlife crossings that allow for safe passage to other wild areas to the north and west. This can lead to conflicts over territory and often results in inbreeding within the confined mountain lion population….so the “new genetic material” is a welcome contribution. The National Park Service is informing project proposals that are currently under way to establish a safe and effective wildlife crossing point (a.k.a. habitat corridor) under Highway 101.

Wordless Wednesday
June 24, 2010, 6:21 am
Filed under: Threats to biodiversity

*Data from U.S Fish and Wildlife Service

50 ways to convince your husband to get a dog
June 22, 2010, 6:06 pm
Filed under: Diversity in the animal world, Human biology

I’ve been working on my husband for quite some time now to let me adopt a dog. This week’s reason is that I would feel oh-so-much safer in the house on those long lonely nights when he is fishing until midnight. He’s entirely unconvinced. We all know about the variety of jobs that our domesticated friend can perform for us — rescue dogs search for missing persons, seeing-eye dogs help the blind….on a recent trip to Mexico I watched a dog walk the conveyor belt sniffing every piece of luggage for the faint trace of blood. These feats aren’t enough to convince my hubby…..but wait! There’s more! Biologists are now working with dogs to solve a variety of scientific dilemmas.

Looking to initiate an invasive plant management strategy?? Set this guy loose at your site.

A study just published in Invasive Plant Science and Management showed that trained dogs outperformed humans in their ability to detect invasive plant species. This weed outcompetes native plant species and causes both ecosystem and economic destruction, but it is often difficult to control the plant if you can’t find it! Enter Fido! Dogs are more accurate than humans (overall success rate of 81% compared to humans 59%) at locating the invasive week and could find it from much greater distance.

Kincaid’s Lupine, a rare, endangered, Oregonian plant, is the one plant on which the endangered Fender’s blue butterfly will lay its eggs.Conservationist have been working with the belgian sheepdog Rogue to spot this  endangered plant and the tiny eggs laid there by the blue butterfly. Rogue and his buddies made only 5 errors in a total of 378 plots.

Rogue working hard for his steak dinner

Of course the possibilities are endless. “EcoDogs” are being used to sniff out a variety of different endangered species – plants and animals alike! Sophie, a 15-month-old black Labrador retriever, is trained to find scat from eastern spotted skunks, while Bishop, a 3-year-old black Labrador retriever, is trained to find scat from striped skunks in Alabama. Both have been trained through EcoDogs, a collaborative organization that trains “detection dogs for ecological research”.

If you happen to be on the Puget Sound this summer and see Gator with a stiff body, mouth open, tail erect, and nose twitching it’s because he just smelled a killer whale pooping nearby! Gator’s first class nose can also detect black bear, grizzly bear, lynx, bobcat, puma, maned wolf, wolverine, fisher, marijuana, cocaine, heroin, and crack —and all he wants in return is to play with his ball.

Dogs have also been reported to sniff out low blood sugar and skin cancer. They can identify prostate cancer from urine samples. A study published in Intergrative Cancer Therapies in 2006 report that, in a matter of weeks, “ordinary” household dogs could be trained to accurately distinguish breath samples of both lung and breast cancer patients from those who were cancer-free.

Now, if you were my husband….wouldn’t you be convinced???

Oh, and if you’re ready to adopt a dog, check your local shelter or animal rescue! If you’re here in orange county check out Friends of Orange County’s Homeless Pets.

Happy Father’s Day
June 21, 2010, 5:34 am
Filed under: Diversity in the animal world

Happy Dad’s Day to all the father’s out there who invest more than just their genetic material in their offspring! Like, for instance, nature’s Mr. Mom: the male seahorse.

It’s actually quite common for male fish to play the dominant parenting role, but fish in the family Syngnathidae (which includes pipefish, seahorses and sea dragons) take fathering to a whole new level: Pregnancy! When seahorses mate, the female deposits her unfertilized eggs into the male’s brood pouch (an external structure that grows on the body of the male), after which the male then releases sperm into the pouch to fertilize the eggs.

But he’s not just passively carrying around embryos; the male closely controls the prenatal environment of the embryos in his pouch by keeping blood flowing around the embryos, controlling the salt concentrations in the pouch, and providing oxygen and nutrition to the developing offspring. He does all this until they hatch, then releases fully formed, miniature seahorses into the water. What a good dad!

For other examples of good fathers in the Animal Kingdom, check out the National Geographic Slide Show.

“Don’t it always seem to go…
June 17, 2010, 5:53 am
Filed under: Diversity in the animal world, Threats to biodiversity

…that you don’t know what you’ve got till it’s gone” -Joni Mitchell

I’ve been procrastinating writing a post on the oil spill. My thoughts about it are just too overwhelming to articulate. It is a disaster. At this point, we cannot even guess at the magnitude of this catastrophe; we are getting better estimates (??) of the amount of oil released but still don’t know how far it will travel and how it will be chemically and physically transformed.

These questions are too big for me to tackle. Instead, I will do what I do best — focus on some of the organisms that are, or will be, affected by one of the greatest environmental disasters of our time.

If you haven’t seen the pictures yet of what is going on above the surface, then you’re not paying attention. But what about the organisms we can’t see? For example, just last year, Prosanta Chakrabarty, an ichthyologist at Louisiana State University, discovered two new species of pancake batfish in museum collections and later caught specimens of both during bottom trawls in the northern Gulf of Mexico. We’re unlikely to see these guys on the cover of Time Magazine next to oil-covered Brown Pelicans, but they are pretty charismatic in their own right. They are found hanging around at depths down to 400 meters, hopping along the sea floor on their pelvic fins instead of swimming. With an unknown amount of oil below the surface encroaching on their habitat, it is questionable whether these newly-discovered animals will be able to weather the impact.

In the last few weeks, 228 dead sea turtles and 29 dead marine mammals have been found in the Gulf of Mexico. The oil-slicked Brown Pelican, a bird that has come back from the brink , has become a poignant symbol of this tragedy.  And what about the clams, mussels, and corals that live on the deep sea floor of the gulf? Or the polychaete tubeworms that can grow up to several meters long and can live for centuries? The marsh grasses and organisms that reside in the coastal sediment?

And yes, I am well aware of the consequences of the spill on human health and well-being, and the livelihoods of so many people….but that is a topic for another day.

For now, click here to read more on the “Science of the Oil Spill”

Wildflowers still going strong
June 7, 2010, 4:59 pm
Filed under: Diversity in the plant world, Wild Places in Orange County

You’ll never hear me complain about the rain here in Southern California — the wetter the better. We were spoiled this past winter and the evidence is hard to miss. For months now, the hillsides have been dotted with an explosion of color. The peak of flowering has passed, but it was a great spring to traipse around Orange County parks and observe the bounty –lupines, shooting stars, CA buttercup, and popcorn flowers to name just a few.

If you haven’t had a chance to explore, don’t worry! Many wildflowers are still going strong and you have a bit more time before the summer heat kicks in. Here are just a few lovelies I saw yesterday on a hike through El Moro Canyon in Crystal Cove State Park:

Coast Prickly Pear (Opuntia littoralis)

Wild Rose (Rosa californica)

California Buckwheat (Eriogonum fasciculatum)

Paintbrush (Castilleja affinis)

Pollination in action