Ecology. Three-Gorges Dam--experiment in habitat fragmentation?
نویسندگان
چکیده
Habitat fragmentation is the primary cause of the loss of biodiversity and ecosystem services, but its underlying processes and mechanisms remain poorly understood. Studies of islands and insular terrestrial habitats are essential for improving our understanding of habitat fragmentation. We argue that the Three-Gorges Dam, the largest that humans have ever created, presents a unique grand-scale natural experiment that allows ecologists to address a range of critical questions concerning the theory and practice of biodiversity conservation.
منابع مشابه
The Three Gorges Dam: an ecological perspective
development throughout the world for thousands of years, providing water, controlling floods, irrigating crops, facilitating navigation, creating recreational opportunities, and generating motive power and electricity. By the end of the 20th century, about 45 000 large dams (>15 m in height) and an estimated 800 000 small dams had been built worldwide (WCD 2000), obstructing over 65% of fresh w...
متن کاملThree Gorges project: chance and challenge.
THE THREE GORGES DAM (TGD) ACROSS THE Yangtze River is the world’s largest hydroelectric dam (1). Construction of the TGD will form many different sizes of islands, providing a golden opportunity for exploring the ways in which island ecosystems are regulated (1). However, the construction will also pose great challenges to the ecosystem of the Three Gorges Reservoir Area (TGRA). It will affect...
متن کاملEnvironmental threats to the Three Gorges Reservoir Region: Are mutagenic and genotoxic substances important?
The Three Gorges Dam project (TGDP), with a total static investment of 95.46 billion RMB (US$10.97 billion) based on the 1993 price level, commenced in 1994 and was completed in 2012. The creation of the Three Gorges Reservoir following the completion of the TGDP had brought about significant changes to the Three Gorges Reservoir Region (TGRR), stretching from the town of Sandouping in Hubei Pr...
متن کاملThree-Gorges Dam: risk to ancient fish.
THE HUGE THREE-GORGES DAM (TGD) OF THE Yangtze River is going to demonstrate the mighty power of humanity to change and fragment an area of about 58,000 km2 with the formation of a huge reservoir of 1080 km2. It is expected to exert disastrous influences on many terrestrial plants and animals, as discussed by J. Wu et al. in their Policy Forum “Three-Gorges Dam— experiment in habitat fragmentat...
متن کاملImpact of the Three Gorges Dam on the Hydrology and Ecology of the Yangtze River
Construction and operation of the Three Gorges Dam (TGD) has significantly altered the downstream hydrological regime along the Yangtze River, which has in turn affected the environment, biodiversity and morphological configuration, and human development. The ecological and environmental systems of the middle and lower Yangtze River have been affected adversely, with the ecosystems of Poyang La...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Science
دوره 300 5623 شماره
صفحات -
تاریخ انتشار 2003