Deforestation and apparent extinctions of endemic forest beetles in Madagascar

Apparent extinction or insufficient sampling?: comment on 'Deforestation and apparent extinctions of endemic forest beetles in Madagascar'.

Deforestation and tropical insect extinctions.

In a study comparing historical and recent records of forest-dwelling Helictopleurus dung beetles across Madagascar, Hanski et al. (2007) reported that species not found in Madagascar-wide sampling in 2002– 2006 have experienced a significantly higher level of deforestation within their known geographical ranges than those species that were recorded. They suggested that deforestation is respons...

Satellite Imagery, Human Ecology, Anthropology, and Deforestation in Madagascar

Satellite images were used to determine rates of deforestation over the past 35 years and to identify current deforestation "hotspots" in the eastern rainforests and in the dry endemic forests of southern Madagascar. The analysis of population trends, topography, and coincident ethnographic research points to a number of different factors influencing deforestation in these regions. Each of thes...

Mapping recent deforestation and forest disturbance in northeastern Madagascar

We conducted an analysis of deforestation and forest disturbance from 2005-2011 in Masoala National Park, the largest federal protected area in Madagascar. We found that the annual rate of forest change in 2010-2011 within the park (1.27%) was considerably higher than in 2005-2008 (0.99%), and was higher than the most recently published deforestation rate for all of Madagascar. Although defores...

Forest losses predict bird extinctions in eastern North America.

Claims that there will be a massive loss of species as tropical forests are cleared are based on the relationship between habitat area and the number of species. Few studies calibrate extinction with habitat reduction. Critics raise doubts about this calibration, noting that there has been extensive clearing of the eastern North American forest, yet only 4 of its approximately 200 bird species ...