scholarly journals Floral Diversity and Pollen Transfer Mechanisms in Bird-pollinated Salvia Species

2007 ◽  
Vol 100 (2) ◽  
pp. 401-421 ◽  
Author(s):  
Petra Wester ◽  
Regine Claßen-Bockhoff
Keyword(s):  
Pollen Transfer ◽  
Floral Diversity ◽  
Transfer Mechanisms

scholarly journals Floral Diversity and Pollen Transfer Mechanisms in Bird-pollinated Salvia Species

2007 ◽  
Vol 100 (6) ◽  
pp. 1381-1381 ◽  
Author(s):  
P. Wester ◽  
R. Classen-Bockhoff
Keyword(s):  
Pollen Transfer ◽  
Floral Diversity ◽  
Transfer Mechanisms

scholarly journals Butterfly-wing pollination in Scadoxus and other South African Amaryllidaceae

2020 ◽  
Vol 193 (3) ◽  
pp. 363-374 ◽  
Author(s):  
Hannah C Butler ◽  
Steven D Johnson
Keyword(s):  
South African ◽  
Ventral Surface ◽  
Butterfly Wing ◽  
Pollen Transfer ◽  
Floral Structure ◽  
Pollination Mechanisms ◽  
Butterfly Wings ◽  
Floral Diversification ◽  
Swallowtail Butterflies ◽  
Transfer Mechanisms

Abstract Understanding the evolution of floral morphology requires information about the identity of pollinators as well as the specific mechanisms of pollen transfer. Based on preliminary field observations and floral structure, we hypothesized that pollination mechanisms involving the transfer of pollen on butterfly wings occur in several lineages of South African Amaryllidaceae. Here we report findings from a detailed study of butterfly-wing pollination in two subspecies of Scadoxus multiflorus and review the prevalence of this pollination mechanism among other Amaryllidaceae in southern Africa. We established that S. multiflorus subsp. katherinae is genetically self-incompatible and thus entirely reliant on pollinators for seed production. We determined that this subspecies is pollinated almost exclusively by large swallowtail butterflies, principally males of the mocker swallowtail Papilio dardanus cenea. Flowers of S. multiflorus subsp. multiflorus are pollinated by pierid and swallowtail butterflies. Pollen is deposited on the ventral surface of the wings of butterflies as they flutter over the strongly exserted stamens. We predict that butterfly-wing pollination occurs in at least nine species of South African Amaryllidaceae, which may reflect several independent origins of this mechanism. The flowers of these species are red or orange with strong herkogamy and are either bowl-brush or open-brush in shape. We provide maps of the distribution of pollen on the ventral surface of the wings of pollinators for four of these species. All four appear to be pollinated via the ventral surface of large butterfly wings, with the floral structure facilitating the process. These findings illustrate the importance of investigating pollen transfer mechanisms in order to understand patterns of floral diversification and floral convergence.

A Systematic Overview of the Floral Diversity in Myrteae (Myrtaceae)

2019 ◽  
Vol 44 (3) ◽  
pp. 570-591 ◽  
Author(s):  
Thais N. C. Vasconcelos ◽  
Gerhard Prenner ◽  
Eve J. Lucas
Keyword(s):  
Systematic Overview ◽  
Floral Diversity

Heat Transfer Mechanisms for Condensation and Vaporization Inside a Microfin Tube

2002 ◽  
Vol 9 (1) ◽  
pp. 25-37 ◽  
Author(s):  
Davide Del Col ◽  
Ralph L. Webb ◽  
Ram Narayanamurthy
Keyword(s):  
Heat Transfer ◽  
Transfer Mechanisms

Rapid Assessment Of Taal Volcano Protected Landscape (TVPL) Terrestrial Biodiversity

2017 ◽  
Vol 11 (1) ◽  
Keyword(s):  
Animal Species ◽  
Rapid Assessment ◽  
Ecological Status ◽  
Taal Volcano ◽  
Ecological Barriers ◽  
Floral Diversity ◽  
Forested Areas ◽  
Baseline Information ◽  
Study Sites ◽  
Terrestrial Biodiversity

With the exponential rise of human activities in the past decades, majority of studies conducted in Taal Volcano Protected Landscape (TVPL) are geared towards the conservation and preservation of Lake Taal’s remaining biodiversity. However, the current structure and assemblage of its terrestrial biotic communities remain relatively unstudied. In this study, we conducted biodiversity censuses in the four sites in TVPL to provide baseline information regarding the community structure of the selected study sites. Comparison of the plant diversity in Taal Volcano Crater Island and Romandan Falls within the forested areas of Mataas na Kahoy, Batangas reveal that both sites support remarkably different vegetation, with the former supporting a smaller floral diversity. The fairly small number of animal samples present difficulty in providing conclusive findings to the wildlife structure of the two study sites. However, the presence of 11 animal species exhibit valuable results in determining the ecological status of TVPL. It is deduced that several ecological barriers exist between the sites, which is attributed to their unique terrestrial biota.

scholarly journals Policy adoption of learner-centred pedagogy in Rwanda: A case study of its rationale and transfer mechanisms

2019 ◽  
Vol 67 ◽  
pp. 64-72 ◽  
Author(s):  
Hester S. van de Kuilen ◽  
Hulya Kosar Altinyelken ◽  
Joke M. Voogt ◽  
Wenceslas Nzabalirwa
Keyword(s):  
Policy Adoption ◽  
Transfer Mechanisms

scholarly journals Understanding plant reproductive diversity

2010 ◽  
Vol 365 (1537) ◽  
pp. 99-109 ◽  
Author(s):  
Spencer C. H. Barrett
Keyword(s):  
Reproductive Biology ◽  
Flowering Plants ◽  
Future Research ◽  
Wind Pollination ◽  
Evolutionary Patterns ◽  
Evolutionary Transitions ◽  
Floral Diversity ◽  
Self Fertilization ◽  
Personal Reflections ◽  
Animal Pollination

Flowering plants display spectacular floral diversity and a bewildering array of reproductive adaptations that promote mating, particularly outbreeding. A striking feature of this diversity is that related species often differ in pollination and mating systems, and intraspecific variation in sexual traits is not unusual, especially among herbaceous plants. This variation provides opportunities for evolutionary biologists to link micro-evolutionary processes to the macro-evolutionary patterns that are evident within lineages. Here, I provide some personal reflections on recent progress in our understanding of the ecology and evolution of plant reproductive diversity. I begin with a brief historical sketch of the major developments in this field and then focus on three of the most significant evolutionary transitions in the reproductive biology of flowering plants: the pathway from outcrossing to predominant self-fertilization, the origin of separate sexes (females and males) from hermaphroditism and the shift from animal pollination to wind pollination. For each evolutionary transition, I consider what we have discovered and some of the problems that still remain unsolved. I conclude by discussing how new approaches might influence future research in plant reproductive biology.

Sign in / Sign up

Export Citation Format

Share Document