Document Detail


Beach almond (Terminalia catappa, Combretaceae) seed production and predation by scarlet macaws (Ara macao) and variegated squirrels (Sciurus variegatoides).
MedLine Citation:
PMID:  25412525     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
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 March and April 2011 on beaches of central Pacific coastal Costa Rica. Seed productivity and predation levels were quantified on a weekly basis for 111 beach almond trees to assess the importance of beach almond as a food source for scarlet macaws and the extent of resource partitioning between seed predators. Seed production of the trees was great (about 194 272 seeds) and approximately 67% of seeds were predated by seed predators. Macaws consumed an estimated 49% of seeds while squirrels consumed 18%. Additionally, evidence of resource partitioning between squirrels and macaws was found. Scarlet macaws preferred to feed on the northern side and edge of the canopy while squirrels preferred to feed on the southern and inside parts of the canopy. Both species ate most seeds on the ocean side of the tree. Despite the status of this tree as an exotic species, the beach almond appears to be an important resource for scarlet macaw population recovery. The resource produced by this tree should be taken into account as reforestation efforts continue in Costa Rica.
Authors:
Jonathan J Henn; Michael B McCoy; Christopher S Vaughan
Related Documents :
1607565 - Validation of a self-reported shelf inventory to measure food purchase behavior.
20852725 - Studying a population undergoing nutrition transition: a practical case study of dietar...
15946415 - Evaluation of three dietary assessment methods and serum biomarkers as measures of frui...
8399695 - Evaluation of a brief telephone questionnaire to estimate fruit and vegetable consumpti...
7280665 - Fermentation in the rumen and human large intestine.
20171745 - Do diet and activity restrictions influence recovery after adenoidectomy and partial to...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Revista de biología tropical     Volume:  62     ISSN:  0034-7744     ISO Abbreviation:  Rev. Biol. Trop.     Publication Date:  2014 Sep 
Date Detail:
Created Date:  2014-11-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404267     Medline TA:  Rev Biol Trop     Country:  Costa Rica    
Other Details:
Languages:  eng     Pagination:  929-38     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Species richness and relative species abundance of Nymphalidae (Lepidoptera) in three forests with d...
Next Document:  Species diversity and activity of insectivorous bats in three habitats in La Virgen de Sarapiquí, Co...