Biología floral y polinizadores de Trichocereus pasacana (Cactaceae) en el Parque Nacional Los Cardones, Argentina

de Viana, Marta Leonor; Ortega Baes, P.; Saravia, M.; Badano, E. I.; Schlumpberger, B.

dc.creator	de Viana, Marta Leonor
dc.creator	Ortega Baes, P.
dc.creator	Saravia, M.
dc.creator	Badano, E. I.
dc.creator	Schlumpberger, B.
dc.date	2014-11-24
dc.date.accessioned	2016-05-03T15:30:58Z
dc.date.available	2016-05-03T15:30:58Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/rbt/article/view/16928
dc.identifier.uri	https://hdl.handle.net/10669/26987
dc.description	Se estudió la floración y polinización de Thrichocereus pasacana en Los Cardones (Salta, Argentina). La mayor prducción de néctar es de las 18 a las 24hs y las abejas Xylocopa sp. actúan como polinizadores	es-ES
dc.description	Many columnar cacti are bat pollinated. It has been suggested that this kind of pollination would be more important in tropical than in temperate regions where flowers are open only one night. Thrichocereus pasacana produces big and resistant white flowers. We analyzed flower characteristics, floral cycle, stigmatic receptivity, nectar production, pollen presence and floral visitors in a T. pasacana population at National Park Los Cardones (Salta, Argentina) in November 1997. Flower features were constant between individuals of the population. Flowers start opening at evening and anthesis time is from 18 to 40 hs. The estigma was receptive throughout the floral cycle. Anther dehiscence occurs with flower opening. Nectar production was highest between 18 to 24hs. Although T. pasacana are open during the night, floral visitors are diurnal. The most frequent was Xylocopa sp. In the study area, nectarivorous bats were not detected. The morphological features of T. pasacana flowers were similar but bigger compared to other columnar cacti. Anthesis time was also longer while nectar production was lower. T. pasacana pollination at National Park Los Cardones is done by bees.	en-US
dc.format	application/pdf
dc.language	spa
dc.publisher	Universidad de Costa Rica	en-US
dc.rights	Copyright (c) 2014 International Journal of Tropical Biology and Conservation	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 49 (1) March 2001; 279-285	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 49 (1) March 2001; 279-285	es-ES
dc.source	Revista Biología Tropical; Vol. 49 (1) March 2001; 279-285	pt-PT
dc.source	2215-2075
dc.source	0034-7744
dc.subject	trichocereus	en-US
dc.subject	cactaceae	en-US
dc.subject	columnar cacti	en-US
dc.subject	floral biology	en-US
dc.subject	pollination	en-US
dc.subject	bees	en-US
dc.title	Biología floral y polinizadores de Trichocereus pasacana (Cactaceae) en el Parque Nacional Los Cardones, Argentina	es-ES
dc.title	Biología floral y polinizadores de Trichocereus pasacana (Cactaceae) en el Parque Nacional Los Cardones, Argentina	en-US
dc.type	artículo original

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