Geoffroy's bat

Geoffroy's bat (Myotis emarginatus) belongs to the order Chiroptera, family Vespertilionidae. Contrary to being a crop pest, this mammal is an essential ally to agriculture. It serves as a highly efficient natural predator, consuming vast quantities of nocturnal insects that often pose significant threats to various horticultural and agricultural crops.

The biological cycle of this species is strictly linked to seasonal changes. During the summer, reproductive colonies are formed in sheltered areas, often including buildings and caves. Winter requires specific hibernation sites where the temperature remains stable, allowing the species to enter torpor and survive periods of low insect availability.

In terms of agricultural impact, these bats do not damage crops or consume plant matter. Their diet consists exclusively of insects, including beetles, moths, and dipterans. By preying on these invertebrates, they effectively limit the spread of harmful pests, which is a valuable ecosystem service for farmers aiming to reduce reliance on chemical treatments.

There is no evidence of phytosanitary damage associated with Myotis emarginatus. While large colonies in storage facilities may require management to address hygiene concerns caused by guano, the bat itself remains an organism that provides exclusively beneficial contributions to the farm environment by reducing the necessity for synthetic pesticides.

Conservation is the primary measure required for this species. Given its protected status in many regions, agricultural management plans should minimize the use of broad-spectrum insecticides that indirectly harm bat populations. Creating natural corridors and maintaining structural diversity on farms can encourage the presence of this beneficial species.