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A welding hammer strapped to her wrist, Joy Hollenback slipped on blue fins and swam into the churning, chilly Pacific surf one fall morning to do her part to save Northern California's vanishing ...
In Alaskan kelp forest ecosystems, sea otters are the keystone species that mediates this trophic cascade. In Southern California, kelp forests persist without sea otters and the control of herbivorous urchins is instead mediated by a suite of predators including lobsters and large fishes, such as the California sheephead.
Kelp forests are some of the most productive ecosystems in the world - they are home to a great diversity of species. Many groups, like those at the Seattle Aquarium, are studying the health, habitat, and population trends in order to understand why certain kelp (like bull kelp) thrives in some areas and not others.
An alternative offset would be to cultivate kelp forests. Kelp can grow at 2 feet per day, 30 times faster than terrestrial plants. Planting kelp across 10% of the oceans (4.5 x the area of Australia) could provide the same offset. Additionally, the kelp would support a fish harvest of 2 megatons per year and reduce ocean acidification. Large ...
The survey counted over 36 million dead trees, which is a dramatic increase, but there still may be more that were not counted. In a dramatic spike, 36.3 million trees died in California last year ...
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Giant kelp forests surround the islands and act as a source of nutrition and protection for other animals. [2] Invasive species, such as the Australian blue gum tree, olive tree, sweet fennel and Harding grass threaten native species through competition for light, nutrients, and water. The Australian blue gum, for example, releases toxins in ...
They’ll be swapped out for trees that provide more shade and use less water. According to the LA Times, the palms won’t disappear completely. The city has chosen six iconic areas where it will ...