Tag: "river" at biology news
Palau's coral reefs show differential habitat recovery following the 1998 bleaching event
... in other regions. "Factors such as river
pollution, sedimentation, and use changes ?such as fishing pressures ?are all controllable factors," says van Woesik. "They’re added to global effects of greenhouse gas emissions that affect climate change. The take-home message is that we can accele...
Fish extinctions alter critical nutrients in water, study shows
...n a study of two species of fish in the Venezuelan river
that eat mud from the river
bottom, Flecker found that the rarer of the two species was unable to make up for the loss of the mo...
Paper challenges 1491 Amazonian population theories
...s say that transformation was very much limited to river
corridors, and if you went away from the river
corridors there wasn't that much impact. That's what our findings tend to support." Bush doesn't ...
Human's ecological footprint in 2015 and Amazonia revealed
...ass and soils, the regulation of water balance and river
flow, the modulation of regional climate patterns, and the amelioration of infectious diseases. ...
Iowa State University botanists identify new species of North American bamboo
... bamboo species ?commonly known as switch cane and river
cane ?in an important way: It drops its leaves in ... off for the Southeast to find the switch cane and river
cane in their native habitats. "Once we actually saw the plants in the field, we knew quickly th...
Microfossils unravel climate history of tropical Africa
...rial in a sediment core in the outflow area of the river
Congo in the South Atlantic Ocean at a depth of almost 1000m. Since the Congo River drains a large part of tropical central Africa, the land derived material gives an integrated signal for a very large area. Cool tropical Africa The new prox...
Study finds mercury prevalent in many western fish
...iscivores are not as widespread throughout western river
systems as salmonids, such as rainbow and cutthroa...ates. The selection of the more than 600 creek and river
sample sites was done randomly to address regional questions about the prevalence of mercury contami...
Newly discovered fish named after New York aquarium biologist
...known locally as a "garaka." It occurs in several river
system in the northeastern part of the country. Loiselle himself has discovered ?? fifteen freshwater fishes during his fourteen years of field work in Madagascar He is considered one of the world's experts on cichlids ?a family of perch-like fis...
CSIRO imagery shows Outer Great Barrier Reef at risk from river plumes
...entional thought that sediment travelling from our river
systems into the GBR is captured by the longshore ...ger sediment load than during regular rainfall and river
flow. As such floods have not occurred for a while the accumulated material in the creeks ands river...
First biomarker for human sleepiness identified in fruit flies
...gy. "If you're feeling sleepy on your way over the river
and through the woods to grandmother's house, it's much better to pull over and find a place where you can sleep for a while than to continue on and risk a serious accident." The study appears this week in the online edition of Proceedings of the ...
The first tree genome is published: Poplar holds promise as renewable bioenergy resource
...pecimen collected along the banks of the Nisqually river
in Washington State. The poplar project supports a broader DOE drive to accelerate research into biofuels production, under the Bush Administration's Advanced Energy Initiative. In August, the department announced it would spend $250 million over f...
Public Library of Science to launch new, open access journal on neglected tropical diseases
...y year in poor countries, including elephantiasis, river
blindness, leprosy, hookworm, schistosomiasis, and...irector of the World Health Organization's African river
blindness control program, Uche Amazigo. Dr. Amazigo said: "PLoS Neglected Tropical Diseases will ...
Climate change has surprising effect on endangered naked carp
...ight hours after transitioning from the freshwater river
system to lake water, the carps' oxygen consumptio...s --eventually reaching just 60 percent of that in river
fish. Both gill and kidney functions also decline. The sodium/potassium pump (Na+/K+-ATPase), wh...
Humpback whales have brain cells also found in humans
...es, including three bottlenose dolphins, an Amazon river
dolphin, a sperm whale, two beluga whales, a killer whale and several other whale and dolphin species. They found that the humpback cerebral cortex, the part of the brain where thought processes take place, was similar in complexity to smaller sized...
How blood flow dictates gene expression
...f blood form when vessels branch, much like when a river
divides. Atherosclerosis typically forms at these sites of so-called disturbed flow as opposed to regions of rapid blood flow through the main vessels. This relationship between atherosclerosis and flow has been known for decades. More recently, tiss...
Beaver dams create healthy downstream ecosystems
... of meters [yards]. In addition, dams built on the river
changed the direction of groundwater flow in the valley. The changes caused water to infiltrate the river
banks and flow underground toward the sides of the valley, instead of down the center of the valley....
Predators prefer to hunt small-brained prey
...rain such as small antelope, mongooses and the red river
hog were more susceptible to attacks by predators compared with larger-brained prey. The report showed a strong correlation between the brain size of the prey and the predatory bias towards it. Animals with small brains lack behavioural flexibility...
Precision biochemistry tracks DNA damage in fish
...Seattle, Wash., and in 2001 a section of the lower river
was added to the Environmental Protection Agency's Superfund list because of contaminants including polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), mercury and other metals, and phthalates. In previous research on Duwamish ...
Beekeepers work hard for the honey, despite changing tupelo forest
...d Watson will explore the degree to which changing river
hydrology, exotic pests, land development and othe...han 45 years of dredging of the Apalachicola for a river
navigation project. The dumping of the dredged material has cut off many tupelo trees from their sou...
Agriculture and tropical conservation: rethinking old ideas
...ined, a Brazilian scientist documented in a single river
valley 28,000 separate forest fragments, where vulnerable species such as muriqui monkeys live. Vandermeer and Perfecto combined observations such as these with current ecological theory. "We know that a lot of organisms typically live in a fragmen...
1 2 3