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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)
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)
Every year billions of butterflies, dragonflies, moths and other insects migrate across continents, and considerable progress has been made in understanding population-level migratory phenomena. However, little is known about destinations and strategies of individual insects. We attached miniaturized radio transmitters (ca 300 mg) to the thoraxes of 14(More)
Southeast Asia is a hotspot of imperiled biodiversity, owing to extensive logging and forest conversion to oil palm agriculture. The degraded forests that remain after multiple rounds of intensive logging are often assumed to be of little conservation value; consequently, there has been no concerted effort to prevent them from being converted to oil palm.(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)
In 2004, Navjot Sodhi and colleagues warned that logging and agricultural conversion of Southeast Asia's forests were leading to a biodiversity disaster. We evaluate this prediction against subsequent research and conclude that most of the fauna of the region can persist in logged forests. Conversely, conversion of primary or logged forests to plantation(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)
H ow many endangered species are there in the United States? This seemingly straightforward question is, in fact, unanswerable at the present time, largely because we have no clear idea how many species – endangered or not – exist there. A recent tally found that over 200 000 species of fungi, plants, and animals have been described to date in the US (Table(More)