The significance of a single tree in the scope of ecology

A lone tree makes it easier for birds and bees to navigate farmland, like a stepping stone between habitats

2021

Authors

Dr Carla Archibald, Eduardo van den Berg, Jonathan Rhodes.

Abstract

Vast, treeless paddocks and fields can be dangerous for wildlife, who encounter them as “roadblocks” between natural areas nearby. But our new research found even one lone tree in an otherwise empty paddock can make a huge difference to an animal’s movement. We focused on the Atlantic Forest in Brazil, a biodiversity hotspot with 1,361 different known species of wildlife, such as jaguars, sloths, tamarins and toucans. Habitat loss from expanding and intensifying farmland, however, increasingly threatens the forest’s rich diversity of species and ecosystems. We researched the value of paddock trees and hedges for birds and bees, and found small habitat features like these can double how easily they find their way through farmland. This is important because enabling wildlife to journey across farmlands not only benefits the conservation of species, but also people. It means bees can improve crop pollination, and seed-dispersing birds can help restore ecosystems.

White-browed meadowlark perched on a bush in a farm paddock within the Atlantic Forest.

White-browed meadowlark perched on a bush in a farm paddock within the Atlantic Forest.