TITLE

DISPERSION DEL PIRU (SCHINUS MOLLE L., ANACARDIACEAE) POR AVES EN TEOTIHUACAN, MEXICO

AUTHOR(S)
Corkidi, Lea; Cacho, Sonia; Burquez, Alberto
PUB. DATE
September 1991
SOURCE
Acta Botanica Mexicana;sep1991, Issue 15, p17
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The dispersal ecology of the pepper tree (Schinus molle L.), introduced from Peru to Mexico in the sixteenth century, is studied in the surroundings of Teotihuacan, state of Mexico. Only the cedar waxwing (Bombycilla cedrorum) was consistently observed eating its fruits, despite of the presence in the study area, of many of the birds reported as dispersers. Germination tests show that the seeds eaten by birds, or those in which the exocarp was rernovod, germinate faster and have a higher percentage germination, Fruits passing through the digestive tract of birds lose 8% of their total sugar content. The timing from ingestion to egestion was about 25 min. This interval is more than 50 times longer than the time the birds spend perching in the tree (x̄ = 27 sec). It is concluded that Bombycilla is one of the most important dispersal agents of Schinus in Teotihuacán. It probably played a major role in the rapid spread of Schinus molle in the Mexican. Central Plateau more than 400 years ago. The importance of this tree for ecological and evolutionary studies is discussed as the dates of introduction to different, places in the world are documented.
ACCESSION #
21362567

 

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