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Celton Clyde Saa
Biodiversity Assessment and Database Program
Biodiversity Assessment and Database Program

Celton Clyde's posts

Is super typhoon an extreme weather event or an extreme climate event?

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Will extreme weather like super typhoon Haiyan become the new norm?

Meanwhile, from COP19: Kicking the Can Until It's Too Late

Christiana Figueres, the UN's leading climate official, said: "We have seen essential progress. But let us again be clear that we are witnessing ever more frequent, extreme weather events, and the poor and vulnerable are already paying the price. Now governments, and especially developed nations, must go back to do their homework so they can put their plans on the table ahead of the Paris conference."

Climate scientists are confident in three ways that climate change will make the impacts of hurricanes worse. First, global warming causes sea level rise, which amplifies storm surges and flooding associated with hurricanes. As a paper published in the Proceedings of the National Academy of Sciences by Aslak Grinsted and colleagues concluded,

"we have probably crossed the threshold where Katrina magnitude hurricane surges are more likely caused by global warming than not."

Second, as climate scientist Kevin Trenberth has noted, global warming has also increased the amount of moisture in the air, causing more rainfall and amplifying flooding during hurricanes.

Third, warmer oceans are fuel for hurricanes. Research has shown that the strongest hurricanes have grown stronger in most ocean basins around the world over the past several decades, and climate models consistently project that this trend will continue. Chris Mooney recently documented the past decade's worth of monster hurricanes around the world, and Jeff Masters estimates that 6 of the 13 strongest tropical cyclones on record at landfall have happened since 1998.

#ClimateChange   #IneptLeadership   #ClimateCrisis  

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Oregon Waterfalls & Photography Map

From a rainy/gloomy morning in the Columbia River Gorge @ Latourell Creek Falls. The vantage point is pretty wide so I threw the fish-eye at it for a different look. Here are the GPS Coordinates for these falls if you want to check them out for yourself: 45.537663,-122.217903

In the coming weeks I'll be releasing a map on my website that contains 50+ waterfalls and other great shooting locations in Oregon. Stay tuned...

Or even better head over to and enter your email in the "Subscribe" box on the right hand side bar to keep up with my recent blog posts, tutorials and other good stuff.

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interesting! thanks for sharing
"An Australian bushman and naturalist claims to have captured video footage of the night parrot, a bird not seen alive for more than a century.  John Young, who describes himself as a wildlife detective, showed the footage and a number of still photos of the bird to a packed room of enthusiasts and media at the Queensland Museum on Wednesday. The desert-dwelling night parrot, Pezoporus occidentalis, has never been photographed and the only evidence of its continued existence has been two dead birds found in 1990 and 2006."

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thanks for sharing this neat article
"Agencies that fund scientific research must choose: is it more effective to give large grants to a few elite researchers, or small grants to many researchers? Large grants would be more effective only if scientific impact increases as an accelerating function of grant size. (...) Impact is positively, but only weakly, related to funding. (...) ...funding strategies that target diversity, rather than “excellence”, are likely to prove to be more productive"

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Question - does anyone have experience with the bioaccumulation rate of metals for blue mussels (Mytilus edulis)? Specifically, days - or years for a study in order to get a detectable concentration level (if present at all)?

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Many plants combat herbivore and pathogen attack indirectly by attracting predators of their herbivores. Here we describe a novel type of insect–plant interaction where a carnivorous plant uses such an indirect defence to prevent nutrient loss to kleptoparasites. The ant Camponotus schmitzi is an obligate inhabitant of the carnivorous pitcher plant Nepenthes bicalcarata in Borneo. It has recently been suggested that this ant–plant interaction is a nutritional mutualism, but the detailed mechanisms and the origin of the ant-derived nutrient supply have remained unexplained. We confirm that N. bicalcarata host plant leaves naturally have an elevated 15N/14N stable isotope abundance ratio (δ15N) when colonised by C. schmitzi. This indicates that a higher proportion of the plants’ nitrogen is insect-derived when C. schmitzi ants are present (ca. 100%, vs. 77% in uncolonised plants) and that more nitrogen is available to them. We demonstrated direct flux of nutrients from the ants to the host plant in a 15N pulse-chase experiment. As C. schmitzi ants only feed on nectar and pitcher contents of their host, the elevated foliar δ15N cannot be explained by classic ant-feeding (myrmecotrophy) but must originate from a higher efficiency of the pitcher traps. We discovered that C. schmitzi ants not only increase the pitchers' capture efficiency by keeping the pitchers’ trapping surfaces clean, but they also reduce nutrient loss from the pitchers by predating dipteran pitcher inhabitants (infauna). Consequently, nutrients the pitchers would have otherwise lost via emerging flies become available as ant colony waste. The plants’ prey is therefore conserved by the ants. The interaction between C. schmitzi, N. bicalcarata and dipteran pitcher infauna represents a new type of mutualism where animals mitigate the damage by nutrient thieves to a plant.
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