New discovered Type of plant!

They don´t do the photosyntesys and they are wonderful as you can see
I´ll add more information from now on
See you my friends

Dragonflies: The Flying Aces of the Insect World

Next time you see a dragonfly, try to watch it catch its next meal on the go. Good luck!

"Unless we film it in high speed, we can't see whether it caught the prey, but when it gets back to its perch, if we see it chewing, we know that it was successful," says Stacey Combes, a biomechanist at Harvard University. With support from the National Science Foundation (NSF), she and her team are studying how dragonflies pull off complicated aerial feats that include hunting and mating in mid-air. She set up her lab in typical "dragonfly country".

"Our lab is at the Concord Field Station in Bedford, Mass. This is a field station of Harvard University about a half-hour from the main campus," says Combes. "We're surrounded by woods and ponds, which is an ideal habitat to find dragonflies".

The scientists have already identified 20 species at the pond so far. On this outing, they hope to net a few to study. But, it's not easy to catch a dragonfly.

"Alright, I got one. I lost it," exclaims team member and biomechanist Jay Iwasaki. "It's a Libellula cyanea," he notes when he finally catches one. "It's in the family of Libellulidae, which are dragonflies known as skimmers; this is a male. You can tell this species in particular from the white dots on its wings"

Effects of Rising Carbon Dioxide on Rangelands

Rising carbon dioxide (CO2) levels can reverse the drying effects of predicted higher temperatures on semi-arid rangelands, as per a research studypublished recently in the scientific journal Nature by a team of U.S. Department of Agriculture (USDA) and university scientists.

Warmer temperatures increase water loss to the atmosphere, leading to drier soils. In contrast, higher CO2 levels cause leaf stomatal pores to partly close, lessening the amount of water vapor that escapes and the amount of water plants draw from soil. This newly released study finds that CO2 does more to counterbalance warming-induced water loss than previously expected. In fact, simulations of levels of warming and CO2 predicted for later this century demonstrated no net change in soil water, and actually increased levels of plant growth for warm-season grasses.

"By combining higher temperatures with elevated CO2 levels in an experiment on actual rangeland, these scientists are in the process of developing the scientific knowledge base to help prepare managers of the world's rangelands for what is likely to happen as climate changes in the future," said Edward B. Knipling, administrator of the Agricultural Research Service (ARS), USDA's principal intramural scientific research agency 

Biology

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