Behavioral and morphological contrasts on the reproduction of two prolonged breeders of the genus Physalaemus (Anura: Leptodactylidae)



Título del documento: Behavioral and morphological contrasts on the reproduction of two prolonged breeders of the genus Physalaemus (Anura: Leptodactylidae)
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000435995
ISSN: 0001-3765
Autores: 1
2
2
3
Instituciones: 1Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Corrientes. Argentina
2Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo, La Plata, Buenos Aires. Argentina
3Instituto de Diversidad y Evolución Austral, Puerto Madryn, Chubut. Argentina
Año:
Volumen: 92
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés The reproduction is one of the main events in the life of an organism, and anurans stand out among vertebrates because of the diversity of their reproductive strategies. We studied the reproduction of two syntopic species, Physalaemus aff. albonotatus and P. santafecinus, and comparatively described their reproductive activity pattern, advertisement calls, calling sites, daily calling activity, amplexus behavior, foam nests, and microhabitats in foam nests. In regards to the reproductive activity pattern, both species were defined as prolonged breeders. However, P. santafecinus exhibited a behavior like explosive breeders: it had a faster reproductive response against rains than P. aff. albonotatus. The calling activity was restricted exclusively to night hours in P. santafecinus, whereas P. aff. albonotatus called during both night and day. The advertisement calls of both species showed a rich harmonic structure, and were characterized by a bimodal harmonic dominance. The species differed significantly in microhabitat calling sites, foam nests, and microhabitats in foam nests. Namely, P. santafecinus frequently called and constructed its nests in sites more exposed than those of P. aff. albonotatus. The general differences in reproductive behaviors observed between the species principally agree with their different reproductive activity patterns
Disciplinas: Biología
Palabras clave: Anfibios y reptiles,
Reproducción y desarrollo,
Conducta reproductiva,
Llamadas de advertencia,
Anidación,
Patrones de actividad,
Ranas,
Physalaemus albonotatus,
Physalaemus santafecinus,
Leptodactylidae
Keyword: Amphibians and reptiles,
Reproduction and development,
Reproductive behavior,
Advertisement calls,
Nesting,
Activity patterns,
Frogs,
Physalaemus albonotatus,
Physalaemus santafecinus,
Leptodactylidae
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