Multinational research: protecting ecology means understanding people, too
...id. They will address issues of invasive species, declining range size and diminishing species populations, poverty and social conflict, over-exploitation of resources, land-use change and habitat loss. These are big challenges some of the most vexing challenges of the 21st century. The two call their five-...Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...emarkable migrations and life-cycle secrets of the declining species. Tuna Past: Case of the Disappearing Bluefins Dusting off sales records, fishery yearbooks and other sources, researchers Brian R. MacKenzie of the Technical University of Denmark and the late Ransom Myers of Canadas Dalhousie Universi...Bumblebees make bee line for gardens, National Bumblebee Nest Survey finds
...and hopefully address the factors responsible for declining bumblebee populations. During the National Bumblebee Nest Survey, more than 700 volunteers surveyed their own gardens plus one of six different countryside habitats for bumblebee nests. They found that gardens contain the highest densities of bumbl...Serica scientists win AOSSM Award for ACL (knee) tissue regeneration in preclinical study
...rmation in the goat model, as indicated by rapidly declining scores for pain and knee size. The primary focus of our work over the past ten years has been to solve the unmet clinical need in ACL repair, offering surgeons and patients a device that would create the correct environment within the knee to reg...Climate change reduces Queensland's bat numbers
... species and are the only flying mammals. Bats are declining worldwide and any information about their ecology is crucial to their future management Bats are often excluded from palaeoecological analyses due to their rarity in the fossil record and the difficulty in identifying them to species level, so we kno...Common environmental chemicals in diet affect fetal ovarian development
...lems in wild animals. Fertility also appears to be declining among humans and there has also been a rise in reproductive defects observed in newborn babies. Until now, most studies have looked at a short-lived exposure to high doses of single compounds, and have usually done so in mice and rats. Dr. Fowler ...Global warming is evaporating Arctic ponds, new study shows
...re alarmed when they began to recognize a trend of declining water levels and changes in water chemistry. When ...ape Herschel ponds, he continues. Water levels are declining and the remaining water is more concentrated with evaporation due to warming. Another disturbing f...Other highlights in JNCI, June 12
...f Kaposi sarcoma and non-Hodgkin lymphoma has been declining in people with AIDS since the introduction of HAART in 1996. This therapy usually increases the number of patients CD4 cells, also known as helper T-cells, and reduces the risks associated with infectious diseases. Robert J. Biggar, M.D., of the N...Major study predicts grim future for Europe's seas
... economic growth. Despite numerous accounts of the declining state of the marine environment, few studies have attempted to link this situation with Europes human lifestyles or to examine what the future may hold for the seas. The project, European Lifestyles and Marine Ecosystems was designed to explore this ...Pesticides choke pathway for nature to produce nitrogen for crops
.... "Our research provides another explanation for declining crop yields," Fox said. "We showed that by applyin... is a previously unforeseen factor contributing to declining crop yields." The researchers say that field-wide experiments now are needed, in addition to tests...Other highlights from the June 6 JNCI
...cholangiocarcinoma occurring inside the liver, but declining rates of the disease occurring outside the liver. Contact: Peter Jepsen, pj@dce.au.dk , +45 89 42 48 00 Also in the June 6 JNCI: http://www.eurekalert.org/emb_releases/2007-06/jotn-im053007.php http://www.eurekalert.org/emb_release...Story ideas from the Journal of Biological Chemistry
...terized by progressive cognitive deterioration and declining daily activities. One of AD's pathological hallmarks is the abnormal aggregation of a protein called tau within nerve cells. Scientists have long suspected that this process contributes to the progressive damage or death of neurons but, until now, th...Lipoic acid explored as anti-aging compound
...lls, but rather an indirect aid that "kick starts" declining function in cells and helps them recover the functions that came more easily and naturally in young animals. In various effects, lipoic acid appears to help restore a cellular "signaling" process that tends to break down in older blood vessels. It ...DNA analysis suggests under-reported kills of threatened whales
...r added, "but it seems likely that it is small and declining because of the unregulated exploitation." The study focused on minke whales in the Sea of Japan known as "J stock." These genetically distinct whales are found closer to shore than other minke breeds, and were hunted to threatened levels until the...AGU Journal Highlights -- April 16, 2007
...GRACE measurements in the Arctic Ocean, but show a declining trend in bottom pressure corresponding to decreasing upper ocean salinities near the North Pole and in the Arctic's Makarov Basin. Title:Recent trends in Arctic Ocean mass distribution revealed by GRACE Authors:James Morison and Cecilia Peralta-...Mistaken identity? When a white marlin may not always be a white marlin
... for the U.S. Endangered Species List, arguing its declining population size, was unsuccessful. "The existence of the roundscale spearfish was confirmed by analyzing the shape of its mid-body scales, which are slightly more rounded at one end compared to the scales of all other Atlantic billfish species, a...US needs to plan for climate change-induced summer droughts
...elt for sustained flows than regular rainfall and declining snow packs have already become an issue throughout much of the West, Coakley pointed out. "We're already seeing snow packs dwindle and spring runoffs coming earlier and earlier," Coakley said. "The dry summers that we've experienced recently may pal...Power-boosting signal in muscle declines with age
..., the researchers set out to determine whether the declining mitochondrial function and increased intracellular fat content seen with aging could be traced back to deficiencies of AMPK. They compared AMPK activity in young and old rats following three "perturbations" that normally stimulate the enzyme and, in ...Recently discovered species gain protection
...tanager, and a wintering population of the rapidly declining cerulean warbler a migratory songbird that nests in North America. "The area is such a remarkable center of micro-endemism that scientists believe more species may be there waiting to be discovered," said Claude Gascon of Conservation Internation...Big vegetarian mammals can play a critical role in maintaining healthy ecosystems, study finds
... reasons, he added: "Large herbivorous mammals are declining throughout Africa and worldwide, and have already gone extinct in many places. Our results suggest that these declines are likely to have complicated, and often unanticipated, consequences for the entire ecosystem." North America is one place where ...