scholarly journals The importance of flower visitors not predicted by floral syndromes

2009 ◽  
Vol 75 (4) ◽  
pp. 660-667 ◽  
Author(s):  
D.G. de Merxem ◽  
B. Borremans ◽  
M.L. de Jäger ◽  
T. Johnson ◽  
M. Jooste ◽  
...  
Keyword(s):  
Flower Visitors ◽  
Floral Syndromes

scholarly journals Corrigendum to “The importance of flower visitors not predicted by floral syndromes”

2010 ◽  
Vol 76 (2) ◽  
pp. 419
Author(s):  
D. Geelhand de Merxem ◽  
B. Borremans ◽  
M.L. de Jäger ◽  
T. Johnson ◽  
M. Jooste ◽  
...  
Keyword(s):  
Flower Visitors ◽  
Floral Syndromes

Community-wide impacts of early season herbivory on flower visitors on tall goldenrod

2016 ◽  
Vol 42 (2) ◽  
pp. 164-172 ◽  
Author(s):  
MITO IKEMOTO ◽  
TAKASHI Y. IDA ◽  
SHUNSUKE UTSUMI ◽  
TAKAYUKI OHGUSHI
Keyword(s):  
Early Season ◽  
Flower Visitors ◽  
Tall Goldenrod

Landscape patterns and diversity of meadow plants and flower-visitors in a mountain landscape

2018 ◽  
Vol 34 (5) ◽  
pp. 997-1014 ◽  
Author(s):  
Julia A. Jones ◽  
Rebecca Hutchinson ◽  
Andy Moldenke ◽  
Vera Pfeiffer ◽  
Edward Helderop ◽  
...  
Keyword(s):  
Landscape Patterns ◽  
Flower Visitors ◽  
Mountain Landscape

scholarly journals Absence of native flower visitors for the endangered Hawaiian mint Stenogyne angustifolia: Impending ecological extinction?

2018 ◽  
Vol 16 ◽  
pp. e00468 ◽  
Author(s):  
Clare E. Aslan ◽  
Christina T. Liang ◽  
Aaron B. Shiels ◽  
William Haines
Keyword(s):  
Flower Visitors

scholarly journals Distance Effects on Diversity and Abundance of the Flower Visitors of Ocimum kilimandscharicum in the Kakamega Forest Ecosystem

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Hellen K. Mandela ◽  
Mugatsia H. Tsingalia ◽  
Mary Gikungu ◽  
Wilbur M. Lwande
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Land Use Changes ◽  
Species Abundance ◽  
Diversity Indices ◽  
Forest Edge ◽  
Flower Visitors ◽  
Kakamega Forest ◽  
Species Invasions ◽  
Wiener Diversity Index

Pollination is an important ecosystem service in the maintenance of biodiversity and most importantly in food production. Pollination is on the decline due to habitat loss, exotic species invasions, pollution, overharvesting, and land use changes. This study analyzed the abundance and diversity of flower visitors’ of Ocimum kilimandscharicum in Kakamega forest with increasing distance from the forest edge. Data were collected through direct observation and sweep netting. Six study sites were identified along two transects each 2.5 km long and labeled A to F. Distance in metres from the forest edge to each site was A=221, B=72, C=83, D=198, E=113, and F=50. Sampling was done from 7:30 am to 4:00 pm, three days in a week for five months consecutively. Diversity indices of different flower visitors were calculated using the Shannon-Wiener diversity index. One-way analysis of variance was used to compare differences between sites and a two-sample t-test was used to identify mean significant differences in species diversity between the closest and the furthest sites. A total of 645 individuals belonging to 35 species were captured from 4 families. The highest diversity was at site F (H’= 2.38) which was closest to the forest edge and the lowest diversity was from site A (H’=1.44) which was furthest from the forest edge. Distance from the forest edge significantly influenced species diversity (F(3, 20)=14.67, p=0.024). Distance from the forest edge also significantly influenced species abundance between the furthest sites A, D, and E and the nearest sites F, B, and C to the forest edge (t=4.177; p=0.0312) and species richness (t=3.2893; p=0.0187). This study clearly demonstrates that Ocimum kilimandscharicum flower visitors play essential roles in pollination and their higher number of visits translates into higher numbers of seeds set. Many of these pollinators are associated with the forest and hence the need to conserve the Kakamega forest as a source pool for pollinators.

scholarly journals Pollinator importance networks illustrate the crucial value of bees in a highly speciose plant community

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Gavin Ballantyne ◽  
Katherine C. R. Baldock ◽  
Luke Rendell ◽  
P. G. Willmer
Keyword(s):  
Plant Species ◽  
Community Level ◽  
Taxonomic Resolution ◽  
Pollen Deposition ◽  
Pollinator Effectiveness ◽  
Flower Visitors ◽  
Pollinator Importance ◽  
Visitation Frequency ◽  
Pollinator Performance ◽  
Number Of Plant Species

AbstractAccurate predictions of pollination service delivery require a comprehensive understanding of the interactions between plants and flower visitors. To improve measurements of pollinator performance underlying such predictions, we surveyed visitation frequency, pollinator effectiveness (pollen deposition ability) and pollinator importance (the product of visitation frequency and effectiveness) of flower visitors in a diverse Mediterranean flower meadow. With these data we constructed the largest pollinator importance network to date and compared it with the corresponding visitation network to estimate the specialisation of the community with greater precision. Visitation frequencies at the community level were positively correlated with the amount of pollen deposited during individual visits, though rarely correlated at lower taxonomic resolution. Bees had the highest levels of pollinator effectiveness, with Apis, Andrena, Lasioglossum and Osmiini bees being the most effective visitors to a number of plant species. Bomblyiid flies were the most effective non-bee flower visitors. Predictions of community specialisation (H2′) were higher in the pollinator importance network than the visitation network, mirroring previous studies. Our results increase confidence in existing measures of pollinator redundancy at the community level using visitation data, while also providing detailed information on interaction quality at the plant species level.

scholarly journals The Effect of Forest Fragmentation on Polistinae

Sociobiology ◽  
2019 ◽  
Vol 66 (3) ◽  
pp. 508
Author(s):  
Ederson Tadeu Bueno ◽  
Marcos Magalhães de Souza ◽  
Mateus Aparecido Clemente
Keyword(s):  
Food Webs ◽  
Forest Fragmentation ◽  
Natural Enemies ◽  
Natural Environment ◽  
Biological Diversity ◽  
Social Wasps ◽  
The State ◽  
Environmental Services ◽  
Flower Visitors ◽  
Semideciduous Seasonal Forest

The forest fragmentation is caused by natural or anthropic actions, which affect negatively the biota and the environmental services rendered by biological diversity. However, there is little information on the reflex of these actions in many different groups of animals, such as social wasps, which are abundant and significantly present in neotropical environments, causing a major impact in the communities they live due to their role in food webs. As their natural enemies, wasps are important in the control of agricultural plagues; in the natural environment, they are nectar collectors, frequent flower visitors, and potential pollinators of many species of plants. These factors justify studies which would evaluate in what way the forest fragmentation acts on these insects biodiversity. This study was carried out in four fragments, each of a different size, located in the municipalities of Inconfidentes and Ouro Fino, in the south of the state of Minas Gerais (Brazil), where the phytophysiognomy is the Montane Semideciduous Seasonal Forest. The research was carried out between December 2016 and March 2018, with the same sampling collection for each fragment, totalizing 104 sampling days. In total, 28 species and 51 colonies were recorded in the four areas and a greater richness for the greatest fragment (F4). The conclusion reached was that the size and heterogeneity of the fragment have an important role in maintaining the richness of social wasps. 

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