Artificial rearing of the greater spear-nosed bat (Phyllostomus hastatus)

  • Published source details Esbérard C.E.L., Motta A.G. & Gonçalves A.C. (2002) Recria artificial de falso-vampiro (Phyllostomus hastatus). Chiroptera Neotropical, 8, 152-155.


This study is summarised as evidence for the following.

Action Category

Rehabilitate injured/orphaned bats to maintain wild bat populations

Action Link
Bat Conservation
  1. Rehabilitate injured/orphaned bats to maintain wild bat populations

    A study in 2001–2002 in a research centre in Rio de Janeiro, Brazil (Esberárd et al 2014) found that two hand-reared greater spear-nosed bats Phyllostomus hastatus survived over three months and reached normal body size for the species. Over approximately two months, the body weight of two hand-reared greater spear-nosed bats increased from 21–40 g to 86–97 g. After 60 days, both individuals had reached a body size normal for the species (forearm of 88 mm). Two abandoned greater spear-nosed bats with an estimated age of 15–20 days were taken into captivity in November 2001. Bats were initially fed 1–2 ml of commercial baby formula with a syringe every 2 h. The amount of food was increased by 1–2 ml/week. After the second month, the bats were fed an equal amount of baby formula and avocado for three days and thereafter a mix of fruit (75%), bird food (15%), dog food (5%), egg (2.5%), cow meat (5%) and honey (0.5%).

    (Summarised by: Ricardo Rocha)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust