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Wrinkle-faced male bats lower face masks to copulate

Date:
November 11, 2020
Source:
PLOS
Summary:
The first behavioral observations of wrinkle-faced bats in their natural habitat reveal that this elusive species uses the rarest form of bat courtship behavior, according to a new study.
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The first behavioral observations of wrinkle-faced bats in their natural habitat reveal that this elusive species uses the rarest form of bat courtship behavior, according to a study published November 11 in the open-access journal PLOS ONE by Bernal Rodríguez-Herrera of the Universidad de Costa Rica, and colleagues.

Centurio senex is a wrinkle-faced bat found in Mexico, Central America, and northern South America. Interestingly, this species shows a distinct sexual dimorphism: Adult males have a fold of skin under the chin that can be raised to cover the lower part of the face like a mask, suggesting that it might be used during courtship behavior. But this species has rarely been studied, so little is known about its behavior and natural history. In the new study, the researchers report the first observations of echolocation and mating behavior of C. senex. The authors analyzed synchronized audio and video recordings from an aggregation of males located on 53 perches in Costa Rica over a period of six weeks.

This species appears to use lek courtship, in which females choose mates from clusters of sexually displaying presumably territorial males. Among mammals, lek courtship is known to be used by only 12 species, mainly seals and hoofed mammals. When females approached, the perched males beat their wings and emitted very loud, low-frequency whistling calls. The males lowered their masks immediately before copulation, then sang enthusiastically and raised their masks again after mating.

According to the authors, future encounters with C. senex may close some of the current gaps in knowledge on the behavior of one of the most iconic bats of the Neotropics.

The authors add: "[Centurio senex] 'court with the mask on'...the mating system of the most enigmatic bat species in the Neotropics appears to be lek, a rarely recorded mating system in bats."


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Journal Reference:

  1. Bernal Rodríguez-Herrera, Ricardo Sánchez-Calderón, Victor Madrigal-Elizondo, Paulina Rodríguez, Jairo Villalobos, Esteban Hernández, Daniel Zamora-Mejías, Gloria Gessinger, Marco Tschapka. The masked seducers: Lek courtship behavior in the wrinkle-faced bat Centurio senex (Phyllostomidae). PLOS ONE, 2020; 15 (11): e0241063 DOI: 10.1371/journal.pone.0241063

Cite This Page:

PLOS. "Wrinkle-faced male bats lower face masks to copulate." ScienceDaily. ScienceDaily, 11 November 2020. <www.sciencedaily.com/releases/2020/11/201111153113.htm>.
PLOS. (2020, November 11). Wrinkle-faced male bats lower face masks to copulate. ScienceDaily. Retrieved June 23, 2024 from www.sciencedaily.com/releases/2020/11/201111153113.htm
PLOS. "Wrinkle-faced male bats lower face masks to copulate." ScienceDaily. www.sciencedaily.com/releases/2020/11/201111153113.htm (accessed June 23, 2024).

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