By Kenneth L. Gosner
Более a thousand иллюстраций, сгруппированных по визуальному сходству, демонстрируют виды морских растений и животных атлантического побережья Северной Америки от залива Фанди до мыса Гаттерас. Путеводитель содержит советы, как находить различные виды, используя информацию по географическому распространению, местообитанию, сезону активности и климату.
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Greater than six hundred species are defined intimately, with greater than 525 illustrations. this is often the consultant for fast, trustworthy id of fishes that youll come upon whereas fishing, snorkeling, diving, or perhaps jogging alongside a Pacific Coast seashore.
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Two years later, each female could produce six more. Six, times six, times six. Modeling the potential growth of a coyote population is awe-inspiring. The first population models calculated in the 1970s by USDA biologist Guy Connolly, and since rerun and revised with equivalent results, show the species’ Lazarus-like ability to rebound from massive killings. 21 Like rats, cheat-grass, kudzu, raccoons, white-tailed deer, ragweed, and Russian thistle, coyotes generate a yearly overabundance of replacements.
THE PREDATOR PARADOX Ending the War with Wolves, Bears, Cougars, and Coyotes JOHN A. SHIVIK BEACON PRESS, BOSTON For my son, Fox The prey must have the predator, just as the predator needs the prey. One without the other eventually becomes something less. The wolf becomes the dog. The deer becomes a cow. And what does man become? —LARRY MARCHINGTON Address to Keepers of the Hunting Spirit Melbourne, Australia June 1991 CONTENTS PART I. THE WAR CHAPTER 1 THE BATTLEFIELD CHAPTER 2 PREDATORS, PEOPLE, AND PREY Impacts and Interactions CHAPTER 3 FOOD An Inseparable Connection CHAPTER 4 PERCEPTIONS THAT FUEL THE PARADOX PART II.
Now, with only 1,200–1,400 wild grizzly bears in existence, they are no longer the lords of the landscape they used to be, but where they do exist they are key players, killing about 650 sheep and injuring about 50 people between 1992 and 2004. 16 In the numbers game, however, and due to its very small range in the western United States, the grizzly is unlikely to be encountered by most cows, sheep, or suburbanites, and probabilities of damage to more than local livestock are low. You won’t see a grizzly in Yosemite.