Miconia affinis

Nitrogen-fixing trees inhibit growth of regenerating Costa Rican rainforests


Nitrogen fixing plants are the primary source of nitrogen in forests, and it is expected that more nitrogen fixers will bring in faster growth. Hence this study conducted, in a humid tropical rainforest North- East Costa Rica, challenged this notion. The area of study had similar dominant species, with P. macroloba being the most dominant Nitrogen fixer.

Open access copy available

Shade coffee farms promote genetic diversity of native trees


In the tropical Americas, coffee is typically cultivated under shade canopy cover. Unlike coffee grown in full sun, shade-grown coffee plays host to an increased diversity of vertebrates and invertebrates. However, the contributions of shade-grown coffee patches in tropical landscapes towards preserving genetic flows have not yet been studied.

Open access copy available
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