2006
DOI: 10.1111/j.1744-7429.2006.00152.x
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Floral Visitors and Pollination of Psychotria tenuinervis (Rubiaceae): Distance from the Anthropogenic and Natural Edges of an Atlantic Forest Fragment1

Abstract: Pollinators, especially insects, could be influenced by forest fragmentation. The aim of this paper was to examine whether there were differences in 1) the communities of floral visitors; 2) the frequency of visits; and 3) the fruit and seed sets of individuals of Psychotria tenuinervis occurring at anthropogenic edges (AEs), natural edges (NEs), and in the forest interior (FI) in 2 yr of study. In 2002, the total number of flower visits was greater in NE and lower in AE, while no difference among habitats was… Show more

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Cited by 36 publications
(33 citation statements)
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“…The Psychotria genus is pantropical, diversified, and most of the species are shrubs (Gentry and Dodson 1987), having distylous flowers, presenting incompatibility between the same individual and the same morph (Bawa and Beach 1983;Hamilton 1990). The flowers of P. tenuinervis are pollinated by insects, mainly bees (especially Apis mellifera in the area studied) (Ramos and Santos 2006), and its fruit is fleshy, with 1-3 seeds (Ramos and Santos 2005), which are probably dispersed by birds, as in other Psychotria species (Paz et al 1999;Loiselle et al 1995b). The density of this species within the study area did not significantly differ among the habitats (Ramos and Santos 2006).…”
Section: Study Speciesmentioning
confidence: 97%
“…The Psychotria genus is pantropical, diversified, and most of the species are shrubs (Gentry and Dodson 1987), having distylous flowers, presenting incompatibility between the same individual and the same morph (Bawa and Beach 1983;Hamilton 1990). The flowers of P. tenuinervis are pollinated by insects, mainly bees (especially Apis mellifera in the area studied) (Ramos and Santos 2006), and its fruit is fleshy, with 1-3 seeds (Ramos and Santos 2005), which are probably dispersed by birds, as in other Psychotria species (Paz et al 1999;Loiselle et al 1995b). The density of this species within the study area did not significantly differ among the habitats (Ramos and Santos 2006).…”
Section: Study Speciesmentioning
confidence: 97%
“…Florestas secundárias, clareiras e bordas são ambientes que recebem maior incidência de luz (MURCIA, 1995) e, consequentemente, promovem diferentes respostas fisiológicas nas plantas de M. albicans, interferindo na sua fenologia (LAURANCE et al, 2003). Em trabalhos que comparam o padrão fenológico de plantas de borda e de interior de fragmentos normalmente se encontram pequenas ou nenhuma diferença (RAMOS; SANTOS, 2006;ATHAYDE, 2007;CAMARGO, 2008), corroborando os resultados deste estudo. Dessa forma, pode-se inferir que a taxa de remoção de frutos não é influenciada pela disponibilidade de frutos nos ambientes, já que a disponibilidade de frutos de M. albicans é praticamente a mesma nos dois ambientes.…”
Section: Discussionunclassified
“…Melittophily has been mentioned for other Rubiaceae, mainly in Psychotria (Coelho & Barbosa 2003, Teixeira & Machado 2004a, Ramos & Santos 2006. Bees seen in P. duckei flowers occur in higher frequency in the first part of the morning and this frequency increased in sunny and drier conditions.…”
Section: Pollinators and Visitorsmentioning
confidence: 99%