Beach almond (Terminalia catappa, Combretaceae) seed production and predation by scarlet macaws (Ara macao Order: Psittaciformes Family: Psittacidae) and variegated squirrels (Sciurus variegatoides Order: Rodentia Family: Sciuridae)
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چکیده
منابع مشابه
Beach almond (Terminalia catappa, Combretaceae) seed production and predation by scarlet macaws (Ara macao) and variegated squirrels (Sciurus variegatoides).
Knowledge of ecological impacts of exotic beach almond (Terminalia catappa) in the central Pacific of Costa Rica are little known, but studies have found this species to be a potentially important food source for endangered scarlet macaws (Ara macao). In this study, reproductive phenology and seed predation by variegated squirrels (Sciurus variegatoides) and scarlet macaws were measured during ...
متن کاملScarlet Macaw, Ara macao, (Psittaciformes: Psittacidae) diet in Central Pacific Costa Rica.
From 1993 to 1997, we observed Scarlet Macaw (Ara macao) feeding behavior in Central Pacific Costa Rica. Feeding data acquired in this study were not collected systematically, but opportunistically whenever macaws were observed feeding. To supplement feeding observations, we conducted interviews with local residents. Scarlet Macaws fed on seeds, fruits, leaves, flowers and/or bark of 43 plant s...
متن کاملScarlet Macaw (Ara macao, Psittaciformes: Psittacidae) nest characteristics in the Osa Peninsula Conservation Area (ACOSA), Costa Rica.
The Scarlet Macaw (Ara macao) is an endangered species. In Costa Rica, the Scarlet Macaw population of the Central Pacific Conservation Area (ACOPAC, n =432 individuals) has undergone considdrable study and has been used effectively as a flagship species for regional conservation. Costa Rica's only other viable Scarlet Macaw population, located in the Osa Peninsula Conservation Area (ACOSA, n=8...
متن کاملPhylogeny of the Squirrels (Rodentia, Sciuridae)
A number of phylogenetic studies have been performed on the family Sciuridae. This work seeks to validate and extend existing phylogenetic studies of Sciuridae with an analysis of the divergence times of a selected set of species. A total of five genes; 2 mitochrontrial ribosomal RNA genes (12S, 16S), a mitochrontrial protein coding gene (cytb) and two nuclear genes (IRBP, RAG1) were studied ac...
متن کاملScarlet Macaw (Ara macao) (Psitaciformes: Psittacidae) parental nest visitation in Costa Rica: implications for research and conservation.
We studied temporal parental visitation of Scarlet Macaws (Ara macao) to six active nests in the Central Pacific Conservation Region of Costa Rica. Total parental time in the nest decreased significantly as the nestlings aged. Results provide guidelines to scientists for planning invasive activities to nestlings, such as placement of radio collars, or biological sample collection. These activit...
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ژورنال
عنوان ژورنال: Revista de Biología Tropical
سال: 2014
ISSN: 2215-2075,0034-7744
DOI: 10.15517/rbt.v62i3.14060