Reproductive Ecology of Understory Species in a Tropical Montane Forest in Costa Rica

The reproductive ecology of nine hermaphroditic understory species in a tropical montane Quercus forest was studied at two sites (2300 and 2600 m elev.) in the Cordillera de Talamanca, Costa Rica. Flower life span, studied in six species, averaged 4.4 d. This is longer than flower life spans found i...

Full description

Saved in:
Bibliographic Details
Published in:Biotropica 1999-12, Vol.31 (4), p.637-645
Main Authors: Wesselingh, Renate A., Witteveldt, Martin, Morissette, Julienne, den Nijs, Hans C. M.
Format: Article
Language:English
Subjects:
breeding system
bumblebee
cloud forest
Cloud forests
Costa Rica
flower life span
Flowers
Fruit set
Fruits
Inflorescences
Life span
Montane forests
Plants
pollination
pre-dispersal seed predation
Quercus
reproductive success
Species
Talamanca
Trees
understory
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The reproductive ecology of nine hermaphroditic understory species in a tropical montane Quercus forest was studied at two sites (2300 and 2600 m elev.) in the Cordillera de Talamanca, Costa Rica. Flower life span, studied in six species, averaged 4.4 d. This is longer than flower life spans found in the Monteverde cloud forest (2.7 d) and comparable to flower life spans found for arctic and alpine species. We studied the breeding system in five species and found no self-incompatible species. Four species proved self-compatible, and three of these showed autogamy. The main diurnal insect pollinator was the bumblebee Bombus ephippiatus. Natural fruit set was low (8-32%) in six species with few seeds per fruit, while two many-seeded species showed a high rate of fruit set (90 and 96%). The incidence of pre-dispersal seed predation was high; the percentage of seeds infested in four species ranged from 8 to 56 percent.
ISSN:0006-3606
1744-7429
DOI:10.1111/j.1744-7429.1999.tb00412.x