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Calcium signalling: the ‘nervous system’ of plants

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Wildlife at risk from drought and human conflict

In Calakmul Mayan Biosphere Reserve, Mexico, climate change is upsetting an ancient balance between indigenous Mayan people and the local wildlife. Large mammal scientist Raphaël Coleman explains how animal populations are migrating under pressure from drought, pushing some species into conflict with humans

Stark contrast between the jungle, established crops, and a recently cut milpa near the Dos Naciones township

Calakmul is located in the south of the Yucatan peninsula, just above the Mexico–Guatemala border (see Figure 1). With its links to surrounding reserves and wilderness areas, it forms part of the largest continuous forest in the Americas, after the Amazon. As a result, it is home to a huge variety of plant species and wild animals — from toucans and trogons to tapirs and jaguars. As well as the wildlife, around 20000 people, mostly indigenous Mayans, live in the buffer zone of the park and the transition area surrounding that — and they all have to make a living.

Biodiversity

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Calcium signalling: the ‘nervous system’ of plants

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DNA replication

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