Cheek-to-cheek: Communal nesting in an ephemeral pool-breeding frog

John Gould, John Clulow, Simon Clulow

Research output: Contribution to journalArticlepeer-review

Abstract

Communal nesting is a behaviour exhibited by some oviparous species, the adults of which deposit their eggs over the same time period in a common area and possibly in direct physical contact. While this may occur inadvertently, it is proposed to be an adaptive trait in some species. Herein, we describe both solitary and communal nesting behaviours in the sandpaper frog (Lechriodus fletcheri). Field observations over two consecutive breeding seasons revealed that adults of this species frequently deposit their eggs in frothed nests alongside those of other mating pairs to form floating communal rafts or “masses” on the surface of the water. The presence of communal masses despite; (i) the relatively small number of nests deposited within each breeding episode and (ii) the space available for nests to be deposited separately within a pool, both indicate that some adults are deliberately choosing to lay their nests together. We propose that adults are thus engaging in a form of social behaviour and that communal nesting may be highly advantageous for improving offspring survival by complimenting the anti-predator properties of the froth nest. This is because the communal mass further isolates embryos from the external environment during development prior to hatching, given a reduction in the surface area relative to volume of each nest that composes the mass. While future research is required to determine why both solitary and communal nesting behaviours are exhibited in this species, it could suggest that there are certain costs associated with communality that occasionally outweigh the benefits.

Original languageEnglish
Pages (from-to)684-692
Number of pages9
JournalEthology
Volume128
Issue number10-11
Early online date19 Sep 2022
DOIs
Publication statusPublished - Nov 2022
Externally publishedYes

Fingerprint

Dive into the research topics of 'Cheek-to-cheek: Communal nesting in an ephemeral pool-breeding frog'. Together they form a unique fingerprint.

Cite this