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Over the past few decades, land-use and climate change have led to substantial range contractions and species extinctions. Even more dramatic changes to global land cover are projected for this century. We used the Millennium Ecosystem Assessment scenarios to evaluate the exposure of all 8,750 land bird species to projected land-cover changes due to climate(More)
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Essay A nimal migration surely ranks as one of nature's most visible and widespread phenomena. Every minute of every day, somewhere, some place, animals are on the move. The migrants span the animal kingdom, from whales and warblers to dragonflies and salamanders. But is migration an endangered phenomenon? Around the world, many of the most spectacular(More)
Tropical forests in southeast Asia are under threat from oil-palm growers. This is an opportunity to combine sustainable economic growth with biodiversity conservation, argue Lian Pin Koh and David S. Wilcove. S outheast Asia harbours 11% of the world's remaining tropical forests 1 , which in recent years have been under threat from the unprecedented and(More)
Climate change poses profound, direct, and well-documented threats to biodiversity. A significant fraction of Earth's species is at risk of extinction due to changing precipitation and temperature regimes, rising and acidifying oceans, and other factors. There is also growing awareness of the diversity and magnitude of responses, both proactive and(More)
INTRODUCTION Climate change directly threatens a significant fraction of the Earth's species. Changing precipitation and temperature conditions likely will alter the geographical ranges of species and may drive many to extinction (Parmesan & Yohe, 2003; Thomas et al., 2004). Climate change is also likely to trigger a wide range of secondary impacts, whereby(More)
The relationship between plant invasions and global change is complex. Whereas some components of global change, such as rising CO2, usually promote invasion, other components, such as changing temperature and precipitation, can help or hinder plant invasion. Additionally, experimental studies and models suggest that invasive plants often respond(More)
Billions of animals migrate each year. To successfully reach their destination, migrants must have evolved an appropriate genetic program and suitable developmental, morphological, physiological, biomechanical, behavioral, and life-history traits. Moreover, they must interact successfully with biotic and abiotic factors in their environment. Migration(More)