Browsing by Autor "Alba García de la Chica"

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Alloparental Behavior
(2017) Alba García de la Chica; Margaret Corley; Eduardo Fernández‐Duque
Alloparental care is defined as care provided to offspring by individuals other than the parents of the recipient. The main types of care studied have been carrying, nursing, and food sharing, but alloparental care may also include indirect kinds of care such as grooming, playing, and territory defense. Alloparental care has its most extreme expression in the cooperative breeding systems present in callitrichid primates. Alloparental care may arise through a mother's tolerance of others caring for her offspring, or if other group members are motivated to provide care for her offspring. Several hypotheses have been proposed to explain why individuals who are not genetic parents to offspring sometimes care for them. Benefits to allocare givers may include the acquisition of maternal skills, the possibility of gaining a reproductive position or gaining increased access to potential mates, and improving one's own inclusive fitness.
First observation of a diurnal birth in wild owl monkeys (Aotus azarae), Formosa, Argentina
(2022) Alba García de la Chica; Noelia Bogado; Eduardo Fernández‐Duque
Notas sobre Mamíferos Sudamericanos es una revista de la Sociedad Argentina para el Estudio de los Mamíferos (SAREM). Publica información acotada donde se describen nuevas localidades de registro, datos sobre comportamiento y aspectos ecológicos de mamíferos neotropicales.
Limits to fragmented habitat viability: case study of owl monkeys in a 0.5 ha natural forest island
(Brill, 2026) Mariana Inés Ayala; Marco Lombardi; Lindsey Weyant; Jonathan Pertile; Marcelo Rotundo; Cecilia P. Juárez; Eduardo Fernandez-Duque; Alba García de la Chica
Our understanding of the viability of primates in anthropogenically fragmented habitats is undermined by the long timeframes for the effects of fragmentation to manifest. Studying primates in natural forest islands can better reveal the limits to habitat viability in the face of fragmentation. We present a study of a group of Azara's owl monkeys (Aotus azarae) occupying a 0.53 ha forest "island", the smallest such forest island and territory ever documented for the genus Aotus. We radio collared one individual and then, for ten months, collected ecological and behavioural data on the island and the group (123 scans, 44 observation days). We also collected forest structure data on the island. While the group did successfully establish itself on the island, the pair did not have an offspring during the birth season. The pair predominantly engaged in resting behaviour in close proximity to each other. Furthermore, the adult male of the group was characterised by eye deformities and bodily injuries, and eventually died nine months after we identified him. These results suggest that, while the forest island may be habitable in the short term, it may not have been sufficient for the long-term survival and reproduction. We propose that this forest island could act as a population sink, where individuals that are not competitive in the highly saturated gallery forest can reside temporarily. Our study shows the importance of considering not only presence/absence, but also behaviour and life history to consider the effects of forest island viability, especially in the face of future scenarios of anthropogenic fragmentation.
Sexual dimorphism in the loud calls of Azara’s owl monkeys (Aotus azarae): evidence of sexual selection?
(Springer Science+Business Media, 2019) Alba García de la Chica; Maren Huck; Catherine Depeine; Marcelo Rotundo; Patrice Adret; Eduardo Fernández‐Duque