Showing posts with label conservation. Show all posts
Showing posts with label conservation. Show all posts

Tuesday, October 2, 2012

Census of Marine Life


Well, this post has been a while in the making.  It was a very hectic Spring and Summer and hopefully I will have a little more spare time now to write the occasional posting.

But here is the Census of Marine Life in the smallest of nutshells, or the tiniest tip of a vast ice berg.
Described on the website thusly:

A DECADE OF DISCOVERY
2,700 scientists
80+ nations
540 expeditions
US$ 650 million
2,600+ scientific publications
6,000+ potential new species
30 million distribution records and counting 

Essentially it is a massive catalogue of what the oceans contain.  The scope of this project is enormous bringing together scientists from different institutions in different countries to research as much ocean as possible over many expeditions.  The mind boggles.
And here are some of the poster children of such an effort.
This is a link to the COML gallery for more astounding images of recently discovered creatures of the sea.


Christmas tree worm (Spirobranchus giganteus) found at Lizard Island (Great Barrier Reef)
The blue tendrils are actually its breathing apparatus.

Credit: John Huisman-Murdoch Univ.
View inside the mantle of a Cirrate octopod (Stauroteuthis syrtensis). One of the few known bioluminescent octopuses.   Photophores (bioluminescent organs) are thought to fool prey by directing them towards the mouth.  Found in the Gulf of Maine at 800m.

Credit: David Shale

A golden lace nudibranch (Halgerda terramtuentiss).  Collected in the waters of the Northwestern Hawaiian Islands.
Credit: Corey Pittman, NOAA, PIFSC, NHIMN

Octopus specimen collected at the Great Barrier Reef's Lizard Island at a depth of 10-12 m

Credit: Dr. Julian Finn, Museum Victoria
 

Juvenile representatives of Antarctic and deep-sea octopuses.
Clockwise from top left: 
Pareledone charcoti, (credit: L. Allcock)
Thaumeledone gunteri, (credit: I. Everson)
Adelieledone polymorpha, (credit: L. Allcock)
Megaledone setebos. (credit: M. Rauschert)



And frankly the best for last.  Not only is the "Yeti Crab" spectacular to look at, it is so unusual it warranted a whole new family designation (Kiwidae) and  a whole new genus (Kiwa, for the mythological Polynesian goddess of shellfish).  Its species name, hirsuta, is from its hairy appearance.

Credit: Ifremer, A.Fifis 2006

And I realize that the Census for Marine Life has done a good deal more that provide us with a few new interesting creatures to look at...but isn't that the start of education?  That we can all be engaged with some images long enough that we might learn something.


Saturday, January 29, 2011

Moon By Whale Light.

Diane Ackerman has such an inspiring sense of adventure. I love reading her books for their beauty and insight but I also enjoy picturing her in the bizarre situations that she finds herself. In Moon by Whale Light she researches four different animals in very different environments. Bats, Alligators, Whales and Penguins. She breaks each of these chapters down into a rich mix of personal experience and scientific fact. She journeys to different places where these animals are being researched and spends time with the researchers, fleshing out their personalities and motivations for going into the fields that they did. She also makes the whole experience seem relatable. Whether she is assisting in the tagging of alligators or swimming with right whales she is curious and inspired by her adventure and it comes through so strongly in her writing.


In Praise of Bats

The first chapter of Moon by Whale Light focuses on bats. A personal favourite of mine, this may have been my initial draw to read the book. She travels to see Merlin Tuttle who has done a great deal to educate people about bats and preserve their species all over the world. One of the leading experts on bats and the founder of Bat Conservation International. Which holds a variety of useful bat information, such as how to humanely remove one from your home, as well as information on how they are impacted by wind energy and human interaction. You can even purchase the official 2011 bat calendar or your own personal bat house.
Honduran White Bat.

Bats make up nearly one quarter of all the worlds mammals, So there is much diversity in behavior and physiology. The greatest distinction is between megabats and microbats. Megabats are the large fruit eating species such as flying foxes. They have large eyes that they use to see as opposed to echolocation and may be distantly related to the primates.
Clockwise:Marianas Flying Fox, Gray Headed Flying Fox, Gray Headed Flying Foxes, another GHFF, and a Spectacled Flying Fox

Red Flying Fox

The microbats, often referred to as the true bats, are smaller and use echolocation instead of sight. There are over 800 species making these bats far more diverse with much more visual differences.
Clockwise: Chapin's Free-tailed Bat, Vampire Bat, Bulldog or Fisherman Bat, Greater Round Eared Bat, Silver Haired Bat, Long Tongued Bat and Big Free-tailed Bat.

All of the photos immediately previous and following are by Merlin Tuttle himself, who has done a great deal for the perception of bats simply by the way he photographs them. The common way to photograph them was to stretch them by each wingtip or clutch them tightly. Both ways show that bats terrified and trying to escape, usually with mouths open, giving the impression of being ferocious. When bats are echolocating they open their mouths, often showing their teeth. They are not threatening, only trying to understand where they are. Tuttle's photographs show a much more interesting side of bats. Each one with such different features, all to aid with echolocation or feeding. And each one looking the stoic character patiently having a portrait taken. There is a wonderful gallery of his work (a lifetime's worth) where all kinds of bats are photographed looking perfectly amiable going about their bat lives.
Clockwise: D'Orbigny's Round Eared Bat, Yellow Shouldered Bat, Ghost-Faced Bat, Eastern Red Bat, Virginia Big Eared Bat, Hoary Bat and Cave Myotis Bat.

Changing the public perception of bats is very important as their colonies are still being disturbed and destroyed. Bats can eat several tons of insects in a year, which can be beneficial to crops, and are excellent pollinators.
Long-nosed Bat pollinating Saguaro.

I find it hard to understand an aversion to bats as I find them delicate and endearing. I love their strange faces and the idea of a flying mammal, so efficient with its night time survival. Perhaps it is our dislocation with the night that has led to our misconceptions about bats. We rarely see them and when we do it is unexpected. Perhaps we should look a little harder for them.