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| Titre : |
New insights into the breeding biology of a phytotelm breeding treefrog exhibiting biparental care (Hylidae : Osteocephalus oophagus)
|
| Auteur(s) : |
V. Vacher, Auteur (et co-auteur)
Eva Ringler, Responsable de stage Mélissa Peignier, Responsable de stage Université des Antilles, Etablissement de soutenance |
| Type de document : | Mémoire |
| Filière : | M. : BEE -- Biodiversité Ecologie Evolution (comprend les parcours BIOGET et EFT ) |
| Sujets : | Grenouille ; Comportement sexuel ; Guyane française ; Forêt tropicale humide |
| Résumé : |
Knowledge on the breeding biology of a species is key for studies in behavioural ecology, evolutionary biology and conservation. Anurans specifically are at current high risk, being threatened at large scale, while hosting the highest diversity of reproductive modes invertebrates. Breeding biology include several behavior such as oviposition site choice, spatial movements and calling activity. We focused on these three aspect of the breeding biology within a natural population of a phytotelm breeding frog exhibiting biparental care in French Guiana (Osteocephalus oophagus). We compared properties of occupied and non-occupied artificial phytotelmata, performed capture-recapture over a month and recorded calling activityfor 17 nights. The major drivers of oviposition site selection were[...] Knowledge on the breeding biology of a species is key for studies in behavioural ecology, evolutionary biology and conservation. Anurans specifically are at current high risk, being threatened at large scale, while hosting the highest diversity of reproductive modes invertebrates. Breeding biology include several behavior such as oviposition site choice, spatial movements and calling activity. We focused on these three aspect of the breeding biology within a natural population of a phytotelm breeding frog exhibiting biparental care in French Guiana (Osteocephalus oophagus). We compared properties of occupied and non-occupied artificial phytotelmata, performed capture-recapture over a month and recorded calling activityfor 17 nights. The major drivers of oviposition site selection were temperature and water volume, whereas pH and proximity to natural phytotelmata had no significant effect. Individuals showed little spatial movement, pair bonding was not observed and males were using more breeding sites than females. Calling activity was influenced positively by temperatue but negatively by rainfall and peaked between 9 and 11 pm. We also suggest a novel non-invasive method to identify individuals based on their eye pattern. |
| Date de publication : | 2021 |
| Format : | 33 p. / Photo coul., graph. n&b. |
| Langue(s) : | Anglais |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=222613 |
Exemplaires (1)
| Localisation | Emplacement | Pôle | Section | Cote | Support | Disponibilité |
|---|---|---|---|---|---|---|
| Kourou | Bibliothèque | AgroParisTech-Kourou | - | Numérique | Consultable sous conditions Disponible |