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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.
This is a list of all mammals currently found in the U.S. state of Alaska, whether resident or as migrants.With 112 mammal species, Alaska ranks 12th of the 50 U.S. states in mammalian diversity. [1]
The Alaskan subspecies of moose (Alces alces gigas) is the largest in the world; adult males weigh 1,200 to 1,600 pounds (542–725 kg), and adult females weigh 800 to 1,300 pounds (364–591 kg) [17] Alaska's substantial moose population is controlled by predators such as bears and wolves, which prey mainly on vulnerable calves, as well as by ...
You can learn more about each of these animals, too, by. While most people know that a baby dog is called a puppy, many may not know what a baby elephant is called. In this fun infographic ...
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 ...
Its fast growth and size provide an important habitat not only for the fish and invertebrates that reside in kelp forests, but also for species that use kelp forests as foraging grounds. [15] In bull kelp forests, kelp crabs are important grazers that control the ecosystem by feeding on large canopy kelps such as Nereocystis .
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Kelp forests are some of the most diverse and productive ecosystems and in the UK cover an area similar in size to the country’s woodlands. Skip to main content. 24/7 Help. For premium support ...