Biology Now, 2e

Wolves were reintroduced to Yellowstone National Park in 1995, and their return had a major impact on other species in the park, ...

Of Wolves and Trees ■ 367 Figure 20.10 Predators can also be prey While the cheetah is what we traditionally think of as a preda ...

368 ■ CHAPTER 20 Communities of Organisms ECOLOGY wolves back, young, woody plants are doing better and growing taller,” says Ri ...

Of Wolves and Trees ■ 369 Then there are species that, though not poisonous, evolved coloration to make them look as if they wer ...

370 ■ CHAPTER 20 Communities of Organisms ECOLOGY 1948 1959 San Fernando Long Beach San Diego Riverside Escondido San Fernando S ...

Of Wolves and Trees ■ 371 A Community Restored Today, the return of the wolf is having a clear and significant impact on the eco ...

372 ■ CHAPTER 20 Communities of Organisms ECOLOGY Luckily, communities can and do bounce back from disturbances, but the time re ...

Of Wolves and Trees ■ 373 driving many mammal species to extinc- tion, including 113 species in Southeast Asia. Because of all t ...

374 ■ CHAPTER 20 Communities of Organisms Challenge Yourself (^6) Wolves are considered a keystone species in Yellowstone becaus ...

Of Wolves and Trees ■ 375 Human Leopard seal Carnivorous plankton Elephant seal Sperm whale Other herbivorous plankton Squid Pen ...

Here and Gone Researchers discover an alarming decline of plankton in the ocean. ◆ (^) Define an ecosystem and explain how it di ...

377 ECOLOGY 21 CHAPTER ECOSYSTEMS ...

378 ■ CHAPTER 21 Ecosystems ECOLOGY A s a teenager, Daniel Boyce made extra cash working as a deckhand on fish- ing boats, so he ...

Here and Gone ■ 379 distinctive ways in which it functions, especially the means by which energy and nutrients are acquired and ...

380 ■ CHAPTER 21 Ecosystems ECOLOGY energy from the sun and transform it into fuel energy. That fuel is passed up the food chain ...

Here and Gone ■ 381 Figure 21.4 Nutrients cycle within and beyond the ocean ecosystem In the ocean, phytoplankton absorb nutrien ...

382 ■ CHAPTER 21 Ecosystems ECOLOGY Nutrients from abiotic sources are absorbed by producers, then passed to consumers and decom ...

Here and Gone ■ 383 last century. Overall, phytoplankton appeared to have declined by about 1 percent of the global average each ...

384 ■ CHAPTER 21 Ecosystems ECOLOGY The tundra biome is found at the poles and on mountaintops. Trees are absent or scarce becau ...

Here and Gone ■ 385 The temperate forest biome is dominated by trees and shrubs adapted to relatively rich soil, snowy winters, ...