Nature Blog Network Future Earth: Conservation Biology
Showing posts with label Conservation Biology. Show all posts
Showing posts with label Conservation Biology. Show all posts

Saturday, 3 October 2009

Passing the baton in the human race

Over four million years ago our ancestral "Ardi" walked (yes, walked) around in what is now Ethiopia.

Over three million years ago "Lucy" died a short distance further south.

About 20,000 years ago, further down the Rift, on the western side in what is now the Democratic Republic of Congo, the "Ishango bone" was being used and marked by early hominids, teasing their decendents trying to interpret this early maths.

In the late 1980s, Greg Laden was tackling postgraduate research in Archaeology and Biological Anthropology in the Semiliki region of Eastern DRC. At the same time a 5 year old was running wild in this same region, where his family were working with chimps and gorillas.

The early gasps of the 21st Century took Hans Herren, President of the Millennium Institute as a guest lecturer to Cambridge University, scanning the horizon for our changing planet. One of his recommendations was that we needed more under 25s in positions of decision-making as the rest of us were managing to ignore the impending crises of climate, agriculture, energy, food security and population.

Today a group of under 25s gathered in the leafy surrounds of Imperial College's Silwood Park as Masters candidates, about to commit themselves to Biodiversity & Conservation Science, Evolutionary Biology, Population and Community Ecology, Environmental Technology and more. How many of them can be persuaded out of the forests and labs, into the corridors of power? At the very least, can they be sure to communicate and inform, not only by peer-reviewed science, but also by translating it to the voting public?

One of the new postgraduates was that wild child in eastern Zaire. He and top science blogger Greg Laden are now linked by the twittering blogosphere that is spreading general knowledge on evolutionary science in all its infinite variety. I have a sense of baton passing, and renewed hope that the current crop of conservation biologists will run that extra mile. Frustration though that the last crop did not manage to stop the finishing line being brought forward and the track being made into an obstacle course.

Sunday, 31 May 2009

Michael Crichton - wish you were here.

The last episode of ER airing in UK this week brings to mind its creator Michael Crichton, who died early and unexpectedly late last year and - surprisingly perhaps - I want to recognise him as a conservation leader. I can hear the howls of electronic protest. In the latter years of his life, Crichton stirred up a hornet's nest with vocal challenges to what he saw as flawed science - see some of the reactions to his life and work on Science Blogs immediately after his death from cancer. But Crichton's success as a writer came from a thorough understanding of scientific process, combined with an ability to challenge preconception and an intuitive take on human behaviour. He listened , explored, observed - then projected ideas forwards or backwards in time, and drew us in to his speculation about what might change and how we might react.

My personal recollection of Michael Crichton derives from his exploration of the fringes of medical science as documented in "Travels". He was travelling to overcome writers block and it seemed to work as a host of bestsellers followed. One was "Congo", but his encounter with mountain gorillas in the Virunga volcanoes was 180 degrees away from the paddle-swinging grey gorillas of that book and subsequent film. We found them high up above Lake Ngezi, amidst the luxuriant greenery covering the slopes of Visoke volcano. The group was resting, belching, peering at the 6' 9" charmer in their midst, who sank down automatically to their level. He was fascinated, trying out the vocalisations, spotting the different characters, drinking in the moment. He didn't forget either. Some years later, when gorillas were surrounded by war and disturbance, he pitched in behind the IGCP in Virunga and the gorilla organisation at Tshiaberimu.

I find myself wanting to know how he would have reacted as the evidence mounts for what we are doing to our planet and what future scenarios we might anticipate or prepare for. I would have liked him to write a guest post for Future Earth, and wish he was here to ask.

Monday, 20 April 2009

Ant Analogies (4) Getting aHead









Meet Solenopsis geminata - tropical fire ant, a hot climate specialist found in hot arid regions around the world. It has spread globally through human commerce and is a major invasive pest in many regions, busily destroying biodiversity values on the way. Loves disturbed areas - a dead cert for a starring role as climate, population and food production find their convergent crises, I'd wager.


Now meet Pogonomyrex sp., a Genus of harvester ants from the deserts of northern and southern America. (Sadly no recent photos from Alex Wild this time, just the unattributed portrait from Wiki). Echoing Chandler in the sitcom "Friends" the connection between these two screams "Big Head, Big Head"! Fortunately a trio of scientists delved further, measuing the head size and shape of both polymorphic and monomorphic species. (Ed: Forget the Australian island "World's best job", surely being an Ant Measurer is a contender for the title?). Anyway, they detected signs that the polymorphic forms were a response to dietary change, and concluded that bimodal shape variation may be a common evolutionary response to seed processing.

The sting in the tail from this train of thought? Wha
t adaptations to specialised roles and tasks might serve our descendents if they need a different societal model to survive - assuming we are reconnected to forces of natural selection or technology allows us to create our own castes? Or will the big brains in our own big heads get us out of this mess first? (Ed again: my female descendents are O.K. with this, just so long as one caste all look like Hugh Jackman).

Sunday, 19 April 2009

Ant analogies (3)

















Ant of the day (photo thanks to Alex Wild) is Myrmecia piliventris, the Australian Jack Jumper Ant, one of the Bulldog Ants. What might we learn from this feisty fighter? Well, to avoid it if possible - jack jumper ants cause more deaths in Tasmania than spiders, snakes, wasps, and sharks combined. The problem is that their powerful venom frequently causes allergic reactions and anaphylatic shock is not uncommon. Fortunately their biographer and analyst Simon Brown has made it part of his life's work to protect the rest of us.

Aside from torturing human invaders, their venemous punch is advantageous for hunting and fighting. Colony living, workers make solo foraging trips and carry back prey to the nest. They are territorial and fight readily.

Which is why they feature in Arthur Schopenhauer's classic "The World as Will and Representation" as as a paradigmatic example of strife and constant destruction endemic to the will to live". "..... the bulldog-ant of Australia affords us the most extraordinary example of this kind; for if it is cut in two, a battle begins between the head and the tail. The head seizes the tail in its teeth, and the tail defends itself bravely by stinging the head. " (Gordon Brown, are you reading this?)

His sad conclusion was that emotional, physical and sexual desires can never be fulfilled. F-ant-astic.

Saturday, 18 April 2009

Ant analogies (2)






Future Earth's Ant Analogies post was meant to be the start of a series about these Masters of the Universe, but inspiration went underground. Thanks to Alex Wild for bringing ants back to the surface with all their brilliant diversity - and unless he asks me not to, I'm featuring and crediting his fantastic photos in this antline of posts.

Ant of the day is from north America - Polyergus sp, Legionaire ants, often called Amazon Ants.

Polyergus are parasites on their hosts Formica ants. For detail see AntWeb but in essence, Polyergus cannot raise their own broods. They take over nascent colonies from Formica queens, allowing the host queens to live only as long as they are useful in building a critical mass of worker ants. Colonies also supplement the supply of workers with efficient raids on nearby Formica colonies - giving rise to anthropomorphic expressions of "piracy" or "slave raiding".

At the risk of alienating the science blogosphere, I think we can be too precious in deriding anthropomorphism. But that's for later debate. Instead of describing these behaviours in human terms, let's look at the models of existence that have evolved in 12,000 species of ants and see whether we might like to keep a few of them in our back pockets as options for our own existence on future earth. Another post tomorrow - exam term homework for selfish genes.

(P.S. Feast your eyes at http://www.alexanderwild.com/)

Saturday, 11 April 2009

Eggciting discovery in Cambridge















A gift from the grave. Rising to public attention this Easter is a perfect present from Charles Darwin. The size and shape of a Frys cream egg, this little treasure's original owner was a south American Tinamou from Maldanado - a male Tinamou in fact, as it is the males of the Nothura that incubate the eggs. Tinamou are related
to cassowaries, emus, kiwis, rheas and ostriches.

This specimen has been lurking since the late 19th Century in the Zoology Museum at Cambridge University where zoology professor Alfred Newton had deposited it. Like a neglected but secure deposit in a Swiss bank, modern curators discovered the egg that was one of only a very few bought back from the Beagle's wanderings. Newton was sent the egg by Darwin, through the intermediary of his son Frank, and the professor's notebook records that "
The great man put it into too small a box, and hence its unhappy state."

Cracking.

Sunday, 5 April 2009

Body language bonanza

The Europe summits have provided a host of photo ops and what rich seams they provide for miners of body language.

This is my favourite, from the Independent today. The annointed, the boss and the wanabe. Anyone who has spent time studying non-human primates will have seen something similar in multi-male groups in their own habitats.

We are not so very different. Professor Filipo Aureli's research group has recently demonstrated that consolation between members of a chimpanzee group reduces stress and is not simply a technique for deflecting aggression. This is indicative of empathy, usually thought to be a uniquely human characteristic. On April 1st (naturally) a BBC report looked into calls by Aureli and others for the Great Apes to be re-classified as hominids and the suggestion that this should be exposed to public debate by the Linnean Society. Dr. Sandy Knapp, Chair of the Linnean Society Committe was asked for her opinion. "What makes us the same is more interesting than what makes us different" she said.

Is that an empathetic arm President Obama, or a confirmation of dominance, or a "thank you for the troops my friend"?

Who is with me that a mountain gorilla would be able to read its intent in a heartbeat?.





(Thanks to Aveling Artworks for permission to use this contemplative illustration).

Monday, 30 March 2009

Axolotl Anxieties











Altogether now...... "Ahhhhhhhh" for the Mexican Axolotl. As with Bambi's big baby head and saucer eyes, it is the retained larval features of the Axolotl that deliver our response.

Endangered by degraded habitat and invasive predators, it was at least a comfort to learn that the Durrell Institute of Conservation & Ecology, the Darwin Initiative and the Zoological Society of London, are amongst those who have taken up international cudgels to support Mexico to retain this appealing neotenic amphibian.
Move over Bambi, the Mexican Axolotl is surely the flagship species for our times (and just as cute).

(Thanks Biomes Blog for the alert)

Friday, 27 March 2009

Death by palm oil

Elephants from the "Conservation Response Units" are called upon by farmers in the Indonesian island of Sumatra, when their crops are being raided by wild elephants from nearby forest. The captive ones patrol the forest edge and warn the raiders away. Sounds apocryphal but I've seen it working - and the balance between conserved forests and local agriculture is maintained.

Enter the commercial oil palm companies - even one that should know better, a subsidiary of the UK-registered company Anglo Eastern Plantations that is a member of the Round Table on Sustainable Palm Oil. Not only is the company clearing protected lowland rainforest illegally in an area that has not been zoned for conversion to agriculture, but it has built a road through an elephant sanctuary. This opens up general access and last Tuesday two of the elephants were shot.

Something to ponder as you eat your ice-cream, spreads and other goodies loaded with palm oil - also recently shown to be suspect in terms of saturated fats. There are some sustainable plantations and some efforts by the food industry to comply. Good, balanced, recent info is supplied by Mongabay and the Rainforest Action Network. But basically the uncontrolled expansion of plantations across the globe is destroying biodiverse forests and peatlands, ecosystem services, orang utans, elephants and more. Leaves a rather bad taste in your mouth, don't you think?

Thursday, 12 March 2009

Malice of forethought?













Motherly monkeys and aggressive apes in the news again this week. Why are researchers still surprised when they find that other primates have complex minds and even more complex behaviours?

Much is being made of zoo chimp Santino demonstrating an ability to plan and prepare - collecting and fashioning stones to later hurl at visitors. This thoughtful planning for a future state is apparently "human-like" -
"Forward planning like this is supposed to be uniquely human; it implies a consciousness that is very special, that you can close your eyes and see this inner world" says cognitive scientist Mathias Osvath.

Sitting under fruiting figs in tropical forests you can't help but wonder whether modern-day humans could move deliberately through tropical forest in a straight line for many kilometres to arrive at a fruit-bearing tree at the exact moment in a multi-year cycle that it comes through with forage. Hmm. I'd suggest you tap into the inner world of a superior ape to achieve this feat.

And if you want to avoid attacks on the way, take a baby primate for a spot of agonistic buffering. I would also recommend this technique if you are moving across border posts with far too many landrover spare parts.

Sad postscript for Santino - maybe he qualifies for a version of the Darwin award as this behaviour has taken him out of the gene pool:

"They have castrated the poor guy. They hope that his hormone levels will decrease and that will make him less prone to throw stones. He's already getting fatter and he likes to play much more now than before. Being agitated isn't good for him," said Osvath.

Friday, 20 February 2009

Travis - ty

"Police said they had no idea why Travis attacked the woman as she got out of her car to visit Ms Herold".

Didn't they? Didn't they? A beating heart, a big brain and 15 years of frustration is why. All boiling up within a body battered by the years of munchies and medications administered by his American owner. It says something for his tolerance that he waited so long. As Franz de Waal, author of "Chimpanzee Politics" explains, this is normal behaviour expressed in an abnormal situation. Chimps, even overweight ones, also have twice the muscle density of humans - which means they are not bouyant enough to swim, but will always beat a human in unarmed combat, even muscle-bound wrestlers.

Fortunately, out of this sad, sad tale might come some sense. Legislators are marshalling their arguments to prevent people keeping "dangerous exotic pets" in U.S. States. All aimed at protecting humans - will it also protect voice-less sentient beings like the Great Apes from stupid, dangerous humans too?

R.I.P Travis.

Friday, 6 February 2009

Darwin and Dave

Would Charles Darwin have been surprised by the interest and activities marking his 200th birthday? Surely so - an introspective and thoughtful man might hope that his theories would persist but assume that the theorist would fade into the background.

Knowing the impact of his work on creationist adherents, he might not be surprised that his conclusions would continue to attract criticism from that same corner, a century and a half after publication of the Origin of Species. He might have expected the creationist arguments themselves to have evolved, but they have only changed dispersal mechanisms and turned up the volume. So it was a genuine pleasure in Attenborough's "Darwin and the Tree of Life" on the BBC to see Sir Dave tackle this head on, pick apart the arguments and present the separate pieces of evidence so clearly.

So in the countdown to Darwin's 200 on February 12th (watch out for the blog swarm for Darwin 12-15 Feb), I'm celebrating our favourite octogenarian as well.

Monday, 5 January 2009

Flutter bys....

It is 2050. Your great grandchild bends over the pile of discarded books while clearing out your shed or attic or store-room, and selects a faded tome. Brushing away the dust s/he traces the remains of the title... "Climatic Risk Atlas of European Butterflies - 2008". "So they knew!" The exclamation cuts through the cloying, hazy heat and the sound of the windmill generators. "They had the data, they had seen the signs... why didn't they do anything?"

Two things about butterflies - they are attractive, disctinctive and available, so we have credible, detailed, temporal and spatial data from thousands of volunteers. They are also indicator species, whose diversity and abundance can demonstrate the health of a habitat and therefore its ability to provide "ecosystem services". Applying climate models (ranging from 2.4 to 4.1 degrees C of increase) to this extensive data set paints a depressing picture. But take time to look at that picture. Think what the butterflies are telling us and let's get behind those recommendations in the Risk Atlas before we flutter along by towards extinction ourselves.



Saturday, 1 November 2008

Pines gain value on the climate exchange - a boost for boreal forest stocks!










Boreal Forests (nickname "The Taigas"?): 1. Tropical Forests: less than 1?

At last, the underdog Boreal Forests (http://www.marietta.edu/~biol/biomes/boreal.htm) are gaining ground against premiership leaders Tropical Forests in the race to save the planet. So much global publicity and funding is focused on the carbon, biodiversity and water management roles of tropical forests that the boreal forests rarely get a mention. But here's some good news for this important biome - European scientists looked at chemicals called terpenes that are released from boreal forests across northern regions such as Canada, Scandinavia and Russia. Terpenes give pine forests their distinctive smell, and the team found that they react in the air to form tiny aerosol particles that condensed water vapour and doubled the thickness of clouds above the forests, reflecting an extra 5% sunlight back into space. Over such a large area, and in such a finely balanced system, this could be an invaluable contribution.

Fortunately for tropical forests they can also do some of this - just not quite so well. O.K. pundits, off you go. I sense a vigorous debate on the way, as the Boreal Forests fight to claim their place in history. Or, rather, on Future Earth.

Living planet?
















The
latest Living Planet Report produced every couple of years by WWF, the Zoological Society of London and the Global Footprint Network, measures the health of the planet's ecosystems and the extent of human demand on them.

In summary this 2008 "human demands on the world's natural capital measure nearly a third more than earth can sustain."

We have an increasingly start choice - do we just let competition sort it out (and would the "fittest" survive?) or do we collaborate to sort it out together, as we naked apes are supposed to be able to do? Whatever kind of society we want we don't have much time to ponder. Andy Dufrein's "get busy living or get busy dying" (Shawshank Redemption) has some resonance for humanity.

Wednesday, 8 October 2008

Going, going ......

There are 5,487 known mammal species on earth and over a quarter of them are at imminent risk of disappearing. Actually there is one more.... and 8,000 individuals of that species are gathering in Barcelona for the IUCN Congress. According to IUCN (ex "World Conservation Union") these are " the world’s leading decision makers in sustainable development: from governments, NGOs, business, the UN and academia". Can we therefore breathe easily in our sleep, rest assured that this will turn the tide? Not if we leave it to IUCN - rather we have to follow all those worthies back to their home countries and support them in their endeavours there. IUCN meanwhile will be competing with them for funds to maintain a physical estate of offices and officers around the world and - if past decades are anything to go by - failing in its unique niche of catalysing action between government and non-government sectors. We are looking at a poor track record here..... a complete inability to lead the way in "mainstreaming" environmental issues globally or to support its members to do so.

But are there glimmers of light emanating from Barcelona that have nothing to do with the sparkling sunshine conference participants are bathed in? Yes - the forum has provided a platform for some NGO-business alliances to shout their stuff. They are demonstrating that value can be generated from conserved resources, and that we can make that value work for conservation of those same habitats and species. Business meets Biodiversity - not just as a risk to be managed, but as an opportunity.

Friday, 26 September 2008

Are frogs swans or canaries?



















Serenading frogs led me to slumber almost every night in Africa. But are these evocative calls swansongs for our amphibian friends? The world might have to get used to missing frogs if their decline continues and in this Year of the Frog, venerable Sir Dave is coming to their rescue. In their declining years we might just hope that frogs show the resilience and determination that Attenborough does in his. (As an aside, BBC Radio 4 listeners will note with pleasure that Attenborough is the first interviewee to reduce lookalike Humphreys from a rotweiller to a puppydog). Our concern for frog declines is not altruism - in retreat from loss of habitat and a warming world they are less able to survive attack by pathogens. The loss of frog song could be the miner's canary of the modern world - alerting us to the danger of our own demise. Hang on in there treefrogs - and 82 year old Sir Dave - we need both of you!

Tuesday, 16 September 2008

Darwin's busy bees








Something is buzzing in south Kensington. Around the side of the Natural History Museum a giant transparent wasp nest is emerging- in anticipation of the Darwin 200 celebrations next year, the "Darwin Centre" - a 200 cell hive for 200 busy bee scientists is nearing completion. They are excited and they will be on show, doing their bit for taxonomy. Watch the promo video (and spot the deliberate error):



"Don't worry (about the rate of species extinction)" they say as "90% of all the species in the world are still to be classified". So its O.K. if we go extinct as long as we are monitoring our own decline is it? As the workers, drones and multiple queens settle into their new surroundings we will have to amplify the buzz of the promo video that connects what they do to conservation impact in the world around us. Yes, it can be about food, disease and climate change, but it is important that not all available funding resources are carried back to this particular hive, and that a clear "line of sight" to conservation of living biodiversity is created.

Meanwhile, watch the story unfold .... will some of the drones follow an escaping queen on her nuptial flight back to America? Are there lessons to be learned from the devastating decline of honeybees....?

Tuesday, 19 August 2008

Conservation Clarity







What a trill..... Birdlife International et al have come up with a new language for conservation hoping that this will make life easier for its advocates. Now we can reduce complex systems to comparable components and make logical decisions on how to intervene. Ah ha.

That's the science, anyway. But as conservation is a social process guided by science, not the other way around, how far will this really take us? Who really makes those decisions? And what will they make of (I quote Dr Butchart) ".....common databases of conservation practice, enabling practitioners to share and compare......"

I have a request to make of the conservation lexographers. Can our conservation Rosetta Stone provide clear and unambiguous definitions in at least Chinese, English and Portugese of

(a) Biodiversity, (b) Ecosystem Services and (c) Going, going, Gone!

Thursday, 14 August 2008

Spectres at the GM feast.











Those blight-resistent potatoes growing quietly in an experimental agricultural plot outside Cambridge, those fields of golden corn fulfilling their genetically manipuated destiny of higher yield and disease resistance, those countries allowing policy change under the radar - you have been rumbled. HRH Prince Charles has thrown the spotlight back on Genetically Manipulated Food Crops with an impassioned, angry tirade of concern. But is he over-reacting?

On the plus side, food security is indeed the more important underlying factor, and there is little argument that creating an environment where small farmers can flourish around the world is crucial to global food security. On the other, in a land-constrained world, what is wrong with helping the evolutionary process along in food crops? According to many small and family farms, the problem lies not with the technology or its application, rather in the behaviour of the profit-driven large companies who insist that (going beyond return on investment) anyone seeking their GM seeds is required to use all their support services. Seeds cannot be saved either, so the customer is forced into repeat purchase.

Oh, I see. The real problem lies in the competetive behaviour that drives our global corporate economy. Well, as consumers we have shown that we can make Corporate Environmental and Social Responsibility a competitive advantage for financial investors. So we can, if we combine efforts, insert the CESR gene into some of the biggest agri-tech brands and engineer a longer future for (our) life on earth.