HOME >> BIOLOGY >> NEWS
Global warming: lessons taught by snails and crabs

food sources may encounter serious nutritional problems, even if they can tolerate elevated temperatures,`` Somero adds.

But ocean critters are not the only ones affected by climate change. Somero points to studies showing that a wide variety of plants, insects, birds and other organisms are expanding their ranges northward or moving to higher elevations - a likely result of global warming.

If the trend continues, warn scientists, it could have serious consequences for human health. A 1998 survey concluded that malaria, dengue fever and other mosquito-borne diseases are now occurring in the highlands of Asia, Central Africa and Latin America - an indication that mosquitoes are moving into habitats once considered too cold for their survival.

The World Wide Fund for Nature recently forecast that 20 percent of all organisms now living in colder climates could be wiped out by the end of the century. The WWF report predicts that, as global warming accelerates, plants and animals will invade cooler habitats, but many will be unable to move fast enough to avoid extinction.

Whether this catastrophic scenario actually occurs is a matter of debate, but according to Somero, the ability of an organism to quickly adapt to temperature changes may be the key to its survival.

For example, the snail species T. funebralis might be able to handle the predicted 6 F (3.3 C) rise in ocean temperature, but its cousin T. brunnea may have to undergo a biochemical change that would give its cells the ability to manufacture proteins in warmer conditions.

``Attempts to increase the thermal limits of protein production by holding snails at warm temperatures in the laboratory led to no upward shift in the temperatures at which proteins could be made,`` Somero observes.

Therefore, he points out, adapting to rising temperatures may require changes in a species` genes over many generations - an evolutionary process that may be too slow to keep pace with global warming.

`
'"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
14-Nov-2000


Page: 1 2 3 4 5 6

Related biology news :

1. Global competition closes Texas sawmills/paper mills
2. Global warming and the onward march of the pine
3. Global warming to squeeze western mountains dry by 2050
4. Global warming may cause songbirds to avoid certain foods
5. Global wetlands surveyed from space
6. Fourteen Grand Challenges in Global Health announced
7. Global analysis finds a large portion of the earth is still wilderness
8. Global garden grows greener
9. Jane Goodall to receive 2003 Global Environmental Citizen Award
10. Global analysis finds nearly half the Earth is still wilderness
11. Global warming has uneven effect on coastal animals

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Global warming lessons taught snails and crabs

(Date:8/28/2014)... called TX Invasives is now available from the Lady ... at Austin for identifying harmful non-native plant, insect and ... the United States cause about $137 billion in economic ... clog waterways, kill native plants and more. , "By ... reporting where invasive species occur, we,re more likely to ...
(Date:8/28/2014)... Entomological Society of America (ESA) is pleased to announce ... Member of the Society. Honorary Membership acknowledges those who ... significant involvement in the affairs of the Society that ... are selected by the ESA Governing Board and then ... be honored at the Awards Ceremony at Entomology 2014, ...
(Date:8/28/2014)... a handful of bacterial culprits that may drive inflammatory ... colitis, using patients, own intestinal immune responses as a ... the journal Cell . , Trillions of bacteria ... critical role in the development and progression of IBD. ... bacterial species affect a person,s susceptibility to IBD and ...
Breaking Biology News(10 mins):Mobile app makes ID of harmful plants, insects in Texas a snap 2Fred Baxendale selected as Honorary Member of the Entomological Society of America 2Yale study identifies possible bacterial drivers of IBD 2
(Date:8/28/2014)... 2014 Best Sanitizers, Inc., a leader ... processing industry, is asking industry professionals to prepare for ... the E2 soap they’re currently using to the Best ... Hand hygiene is critical to fighting cross-contamination and ... Six key criteria are identified to evaluate the effectiveness ...
(Date:8/28/2014)... Best Sanitizers, Inc., the first company ... sanitizer, asks food processors and food handling professionals to ... they’re currently using to Best Sanitizers’ Alpet® E3 ... to fighting cross-contamination and the spread of pathogens in ... are key criteria that make a hand sanitizer most ...
(Date:8/28/2014)... “This kit has an improved extraction efficiency and provides users ... said Mark Tess, PhD, Mycotoxin Product Manager for Charm Sciences. ... USDA-GIPSA inspection agencies that have a need to detect aflatoxin ... a matter of minutes with nothing but our equipment and ... grain before accepting it, but they no longer have to ...
(Date:8/28/2014)... WEST LAFAYETTE, Ind. A new research ... "nanomechanical" properties of tiny structures undergoing stress ... insights to improve designs for microelectronics and ... spectroscopy, reveals information about how heating and ... their mechanical properties. Researchers have discussed the ...
Breaking Biology Technology:Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3New analytical technology reveals 'nanomechanical' surface traits 2New analytical technology reveals 'nanomechanical' surface traits 3
Cached News: