Results 241 to 250 of about 21,182 (281)
Magnitude and determinants of delivery complications among women in selected hospitals of West Shoa, Oromia, Ethiopia: A multicentered cross-sectional study. [PDF]
PLoS OneGirma T, Wirtu D, Egata G.
europepmc +1 more source
A framework for the evaluation of quality of care in maternity services
, 2000 Hulton, Louise +2 more
core
Clinical trials in Lusophone Africa – results from a capacity building training initiative
Batista JPB +3 more
europepmc +1 more source
Pollination generalization and reproductive assurance by selfing in a tropical montane ecosystem
The Science of Nature, 2021 Pollination and reproduction are important processes for understanding plant community dynamics. Information regarding pollination and reproduction is urgent for threatened ecosystems, such as tropical montane ecosystems. In tropical mountains, pollination patterns are expected to conform to the reproductive assurance theory (due to low pollinator ...
Pedro Joaquim, Bergamo +4 more
openaire +3 more sources
The evolution of mating‐type switching for reproductive assurance
BioEssays, 2016 Alternative ways to ensure mate compatibility, such as hermaphroditism and the breakdown of self‐incompatibility, evolved repeatedly when finding a mating partner is difficult. In a variety of microorganisms where compatibility is determined by mating‐types, a highly regulated form of universal compatibility system called mating‐type switching has ...
Bart P. S. Nieuwenhuis, Simone Immler
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Genetic cost of reproductive assurance in a self-fertilizing plant
Nature, 2002The transition from outcrossing to self-fertilization is one of the most common evolutionary trends in plants. Reproductive assurance, where self-fertilization ensures seed production when pollinators and/or potential mates are scarce, is the most long-standing and most widely accepted explanation for the evolution of selfing, but there have been few ...
Christopher R Herlihy +2 more
exaly +3 more sources
Ecology, 2006
(Uploaded by Plazi for the Bat Literature Project) Reproductive assurance is often invoked as an explanation for the evolution of self-fertilization in plants. However, key aspects of this hypothesis have received little empirical support. In this study, I use geographic surveys of pollinator communities along with functional studies of floral trait ...
David A Moeller
exaly +4 more sources
(Uploaded by Plazi for the Bat Literature Project) Reproductive assurance is often invoked as an explanation for the evolution of self-fertilization in plants. However, key aspects of this hypothesis have received little empirical support. In this study, I use geographic surveys of pollinator communities along with functional studies of floral trait ...
David A Moeller
exaly +4 more sources
Evolution; International Journal of Organic Evolution, 2008
Reproductive assurance through selfing during colonization events or when population densities are low has often been put forward as a mechanism selecting for the evolution of self-fertilization. Such arguments emphasize on the role of both local demography and metapopulation processes.
François Munoz +1 more
exaly +3 more sources
Reproductive assurance through selfing during colonization events or when population densities are low has often been put forward as a mechanism selecting for the evolution of self-fertilization. Such arguments emphasize on the role of both local demography and metapopulation processes.
François Munoz +1 more
exaly +3 more sources
American Journal of Botany, 2003
Reproductive assurance is frequently used to explain the evolution of selfing but has become controversial from lack of evidence. We studied the pollination system of the near carnivorous plant genus Roridula and showed that reproductive assurance is important in this system. Hemipterans have a digestive mutualism with Roridula and have been implicated
Bruce Anderson +2 more
exaly +3 more sources
Reproductive assurance is frequently used to explain the evolution of selfing but has become controversial from lack of evidence. We studied the pollination system of the near carnivorous plant genus Roridula and showed that reproductive assurance is important in this system. Hemipterans have a digestive mutualism with Roridula and have been implicated
Bruce Anderson +2 more
exaly +3 more sources
Relationship between reproductive assurance and mixed mating in perennial Kosteletzkya virginica
South African Journal of Botany, 2011 Recent works have shown that mixed mating systems often evolve despite strong inbreeding depression and reproductive assurance, which is one of the widely accepted explanations for the evolution of selfing.
Qin, P. +5 more
exaly +2 more sources