Results 91 to 100 of about 2,322 (185)

Genetic Variability and Founder Effect in the Pitcher Plant Sarracenia purpurea (Sarraceniaceae) in Populations Introduced into Switzerland: from Inbreeding to Invasion [PDF]

open access: yes, 2017
• Background and Aims The long-lived and mainly outcrossing species Sarracenia purpurea has been introduced into Switzerland and become invasive.
GALLAND, NICOLE   +2 more
core  

Delayed response in a plant-pollinator system to experimental grassland fragmentation [PDF]

open access: yes, 2018
The fragmentation of natural habitat is considered to be a major threat to biodiversity. Decreasing habitat quality and quantity caused by fragmentation may lead to a disruption of plant-pollinator interactions and to a reduction in sexual reproduction ...
Baur, Bruno, Rusterholz, Hans-Peter
core  

Ecological implications of a flower size/number trade-off in tropical forest trees [PDF]

open access: yes, 2011
Peer reviewedPublisher ...
A Konuma   +98 more
core   +5 more sources

Measurement of fruit color-heterogeneity index and their relation to Jatropha curcas L., oil in Colombia

open access: yesActa Agronómica, 2017
Jatropha curcas L. is a wild species in the domestication process with an oil and biofuel potential use. The evolutionary-adaptive processes have conferred a reproductive mechanism based on protogyny-geitonogamy, achieving a floral asynchrony addressed ...
Luis Fernando Campuzano Duque   +1 more
doaj   +1 more source

Requerimentos de polinização e biologia floral da castanheira-do-brasil (Bertholletia excelsa Bonpl., Lecythidaceae) em um SAF em Tomé-Açu, Pará. [PDF]

open access: yes, 2011
A castanheira-do-brasil (Bertholletia excelsa Bonpl.) pertence à família Lecythidaceae predominantemente alógama. Estudos prévios mostram que os polinizadores são abelhas da família Apidae (Bombus, Xylocopa, Eulaema, Epicharis, Centris).
CORRÊA, F. da S.   +3 more
core  

Signal verification can promote reliable signalling. [PDF]

open access: yes, 2013
The central question in communication theory is whether communication is reliable, and if so, which mechanisms select for reliability. The primary approach in the past has been to attribute reliability to strategic costs associated with signalling as ...
Broom, M.   +2 more
core   +1 more source

Pollination ecology of Rhynchosia cana (Willd.) DC. (Fabaceae), an erect sub-shrub, in peninsular India

open access: yesJournal of Threatened Taxa, 2017
Rhynchosia cana is a perennial erect sub-shrub.  It flowers during November-January with peak flowering in December.  The flowers are hermaphroditic, nectariferous, self-compatible and display explosive pollination mechanism adapted for pollination by ...
A.J. Solomon Raju, K. Venkata Ramana
doaj   +1 more source

Pollination biology, breeding system and reproductive success of Adhatoda vasica,an important medicinal plant [PDF]

open access: yes, 2009
Adhatoda vasica Nees.(Acanthaceae) is an important and widely used medicinal plant. The flowers last for 3–5 days, they are protandrous and pass through three distinct phases: male, bisexual and female.
Shivanna, KR
core   +1 more source

Pollination ecology and breeding system of Xylopia championii (Annonaceae): curculionid beetle pollination, promoted by floral scents and elevated floral temperatures [PDF]

open access: yes, 2007
Data on the reproductive biology of the Annonaceae are rather fragmentary, particularly for paleotropical species. The pollination ecology and breeding system of the Sri Lankan endemic Xylopia championii (Annonaceae) are described in detail.
Gunatilleke, IAUN   +3 more
core   +1 more source

More than symbioses : orchid ecology ; with examples from the Sydney Region [PDF]

open access: yes, 2013
The Orchidaceae are one of the largest and most diverse families of flowering plants. Orchids grow as terrestrial, lithophytic, epiphytic or climbing herbs but most orchids native to the Sydney Region can be placed in one of two categories.
Entwisle, Timothy J.   +2 more
core  

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