{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ch55 part2 - Chapter 55 Conservation Biology and...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 55 Chapter 55 Conservation Biology and Restoration Ecology
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Another distinguishing feature of Conservation Biology is its time scale Another distinguishing feature of Conservation Biology is its time scale Practitioners attach more weight to the long-range viability of whole systems and species, including their evolutionary potential
Background image of page 2
Conservation Biology differs from other biological sciences in one important way It’s often a crisis discipline i.e., one often has to act before knowing all the facts – thus, a mixture of science and art. Conservation Biologists view their main task as providing the intellectual and technological tools that will anticipate, prevent, minimize, and repair ecological damage Multidisciplinary approaches. Many of the ideas, techniques and methods come from a broad range of biological fields including ecology, biogeography, systematics, genetics, evolution, epidemiology, forestry, fisheries, wildlife biology, agronomy, and veterinary science Also incorporates social science disciplines such as resource economics and policy, ethnobiology, and environmental ethics
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
When did conservation biology emerge as a science? Conservation biology only emerged as a distinct professional enterprise with its own practices, cultures, and social institutions in the 1980s. It is possible not only to place and date, but even to time, its emergence as an organized discipline: at about 5 p.m. (EST), 8 May 1985, in Ann Arbor, Michigan, at the end of the Second Conference on Conservation Biology.
Background image of page 4
What do conservation biologist do? Conservation Biology The primary goal of Conservation Biology is the active protection of biological diversity or biodiversity. Scientists have described and formally named about 1.8 million species of organisms. Species estimates varies : 1.8 million to high as 200 million.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Why do we need to conserve? Over the past few hundred years, humans have increased the species extinction rate by as much as 1,000 times more than the typical rate over the planet’s history. Greatest episode of mass extinctions since the loss of the dinosaurs 65 million years ago Contemporary extinction rates 1000-10,000 times higher than the rate expected without human influence (Wilson1989).
Background image of page 6
The biodiversity crisis
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Earth’s biodiversity The Earth is home to a tremendous biological diversity, or “biodiversity”, as a result of more than 3 billion years of evolution. wild life
Background image of page 8
The Three Levels of Biodiversity Biodiversity has three main components Genetic diversity Species diversity Ecosystem diversity Genetic diversity in a vole population Species diversity in a coastal redwood ecosystem Community and ecosystem diversity across the landscape of an entire region Figure 55.2
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Mutation and sexual recombination produce the variation that makes evolution possible Mutation and sexual recombination produce the variation that makes evolution possible Genetic Diversity (Chapter 23.1)
Background image of page 10
Basics on genetics
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}