ScienceDaily: Top Environment News |
- Jellyfish experts show increased blooms are a consequence of periodic global fluctuations
- Did Lucy walk on the ground or stay in the trees?
- As climate warms, bark beetles march on high-elevation forests
| Jellyfish experts show increased blooms are a consequence of periodic global fluctuations Posted: 31 Dec 2012 03:06 PM PST Blooms, or proliferations, of jellyfish can show a substantial, visible impact on coastal populations -- clogged nets for fishermen, stinging waters for tourists, even choked cooling intake pipes for power plants -- and recent media reports have created a perception that the world's oceans are experiencing trending increases in jellyfish. Now, a new multinational collaborative study suggests these trends may be overstated, finding that there is no robust evidence for a global increase in jellyfish over the past two centuries.  |
| Did Lucy walk on the ground or stay in the trees? Posted: 31 Dec 2012 01:10 PM PST Researchers have investigated tree-climbing behavior of modern hunter-gatherers to elucidate our fossil ancestors' terrestrial versus arboreal preferences.  |
| As climate warms, bark beetles march on high-elevation forests Posted: 31 Dec 2012 01:10 PM PST In a new study, scientists report a rising threat to the whitebark pine forests of the northern Rocky Mountains as native mountain pine beetles climb ever higher, attacking trees that have not evolved strong defenses to stop them.  |
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