Testing hypotheses of bat baculum function with 3D models derived from microCT ...

(Uploaded by Plazi for the Bat Literature Project) The baculum (os penis) has been extensively studied as a taxon-specific character in bats and other mammals but its mechanical function is still unclear. There is a wide consensus in the literature that the baculum is probably a sexually selected ch...

Full description

Bibliographic Details
Main Authors: Herdina, Anna Nele, Kelly, Diane A., Jahelková, Helena, Lina, Peter H. C., Horáček, Ivan, Metscher, Brian D.
Format: Article in Journal/Newspaper
Language:unknown
Published: Zenodo 2015
Subjects:
Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat
Nyctalus noctula
Pipistrellus nathusii
Pipistrellus pipistrellus
Online Access:https://dx.doi.org/10.5281/zenodo.13456556
https://zenodo.org/doi/10.5281/zenodo.13456556
Description
Summary:(Uploaded by Plazi for the Bat Literature Project) The baculum (os penis) has been extensively studied as a taxon-specific character in bats and other mammals but its mechanical function is still unclear. There is a wide consensus in the literature that the baculum is probably a sexually selected character. Using a novel approach combining postmortem manipulation and threedimensional (3D) imaging, we tested two functional hypotheses in the common noctule bat Nyctalus noctula, the common pipistrelle Pipistrellus pipistrellus, and Nathusius' pipistrelle Pipistrellus nathusii: (i) whether the baculum can protect the distal urethra and urethral opening from compression during erection and copulation; and (ii) whether the baculum and corpora cavernosa form a functional unit to support both the penile shaft and the more distal glans tip. In freshly dead or frozen and thawed bats, we compared flaccid penises with artificially 'erect' penises that were inflated with 10% formalin. Penises were stained with alcoholic ...

Similar Items