Results 31 to 40 of about 1,101 (151)

The ethics of theft: Reevaluating the impacts of floral larceny on plant reproductive success

Plant Diversity
Plants and their interaction partners offer unparalleled views of evolutionary ecology. Nectar larceny, entailing nectar extraction without pollinating, is thought to be an example of a harmful, antagonistic behavior, but the precise consequences of ...
Jin-Ru Zhong, Xiao-Fang Jin, Michael C. Orr, Xiao-Qing Li, Yong-Deng He, Sheng-Wei Wang, Qing-Feng Wang, Chun-Feng Yang, Zhong-Ming Ye   +8 more
doaj   +2 more sources

Comparing levels of geitonogamous visitation by honey bees and other pollinators

Journal of Pollination Ecology, 2023
Geitonogamy, the transfer of pollen from one flower to another on the same plant, is often the primary means of self-pollination in flowering plants.
Dillon Travis, Joshua Kohn
doaj   +1 more source

The sexual reproductive strategy in clonal Scopolia carniolica is based on obligatory cross-pollination and self-incompatibility

Scientific Reports
Understanding the reproductive biology and breeding system of rare species is crucial for effective conservation. We examined floral biology, assessed the true pollinators, and investigated the reproductive effect of six pollination treatments ...
Karolina Tymoszuk-Rydzewska, Bożena Denisow, Jacek Mielniczuk, Ernest Stawiarz   +3 more
doaj   +2 more sources

Pollination potential of male bumble bees (Bombus impatiens): movement patterns and pollen-transfer efficiency

Journal of Pollination Ecology, 2010
Many plant species rely on female bumble bee workers for pollen transfer. However, male bumble bees, which differ both behaviourally and morphologically from female workers, also visit many species of flowering plants and may transfer pollen differently.
Katherine Ostevik, Jessamyn Manson, James Thomson   +2 more
doaj   +1 more source

The breeding system and effectiveness of introduced and native pollinators of the endangered tropical tree Goetzea elegans (Solanaceae)

Journal of Pollination Ecology, 2011
The impact of introduced species on native organisms is one of the main conservation concerns around the world. To fully understand the effect of introduced pollinators on native plants, it is important to know the reproductive biology of the focal ...
Marcos A. Caraballo-Ortiz, Eugenio Santiago-Valentín   +1 more
doaj   +1 more source

The pollination of Epipactis Zinn, 1757 (Orchidaceae) species in Central Europe – the significance of chemical attractants, floral morphology and concomitant insects

Acta Societatis Botanicorum Poloniae, 2011
A series of studies on pollination biology of the Epipactis atrorubens (Hoffm.) Besser, E. purpurata Sm., and E. palustris (L.) Crantz populations was conducted in Poland, Lithuania and Czech Republic between 2003 and 2010.
Anna Jakubska-Busse, Marcin Kadej
doaj   +1 more source

Strong inbreeding depression and individually variable mating system in the narrow endemic Erodium cazorlanum (Geraniaceae)

Anales del Jardín Botánico de Madrid, 2013
Angiosperms evolved different systems to attract effective pollinators while reducing selfing in hermaphroditic flowers. Selfing ability can be advantageous when pollinators and/or mates are scarce, although inbreeding depression may largely reduce those
Conchita Alonso, Marina García-Sevilla
doaj   +1 more source

Pollination of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands, Brazil Polinização de duas espécies de Vellozia (Velloziaceae) de campos quartzíticos de altitude, Brasil

Acta Botânica Brasílica, 2007
The pollinators and breeding system of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands in SE Brazil were studied. Vellozia leptopetala is shrubby and grows solely on rocky outcrops, V. epidendroides is herbaceous and grows
Claudia Maria Jacobi, Mário César Laboissiérè del Sarto   +1 more
doaj   +1 more source

Biologia floral e polinização artificial de pinhão-manso no norte de Minas Gerais Floral biology and artificial polinization in physic nut in the north of Minas Gerais state, Brazil

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar alguns aspectos da biologia floral e do sistema reprodutivo de Jatropha curcas, em Janaúba, MG. Foram registrados: o número de flores femininas e masculinas; o intervalo de abertura das flores femininas; e a formação
Ana Cristina Pinto Juhász, Samy Pimenta, Bruno Oliveira Soares, Danielle de Lourdes Batista Morais, Hudson de Oliveira Rabello   +4 more
doaj   +1 more source

Reproductive biology of the biofuel plant Jatropha curcas in its center of origin [PDF]

PeerJ, 2016
In this work, we studied the main characteristics of flowering, reproductive system and diversity of pollinators for the biofuel plant Jatropha curcas (L.) in a site of tropical southeastern Mexico, within its center of origin. The plants were monoecious
Manuel Rincón-Rabanales, Laura I. Vargas-López, Lourdes Adriano-Anaya, Alfredo Vázquez-Ovando, Miguel Salvador-Figueroa, Isidro Ovando-Medina   +5 more
doaj   +2 more sources