Disrupting plant-pollinator systems endangers food security

One Earth ◽  
2021 ◽  
Vol 4 (9) ◽  
pp. 1217-1219
Author(s):  
Teja Tscharntke
2015 ◽  
Vol 26 ◽  
pp. 72-79 ◽  
Author(s):  
Emily J Bailes ◽  
Jeff Ollerton ◽  
Jonathan G Pattrick ◽  
Beverley J Glover

2015 ◽  
Vol 282 (1814) ◽  
pp. 20151130 ◽  
Author(s):  
G. Ballantyne ◽  
Katherine C. R. Baldock ◽  
P. G. Willmer

Interaction networks are widely used as tools to understand plant–pollinator communities, and to examine potential threats to plant diversity and food security if the ecosystem service provided by pollinating animals declines. However, most networks to date are based on recording visits to flowers, rather than recording clearly defined effective pollination events. Here we provide the first networks that explicitly incorporate measures of pollinator effectiveness (PE) from pollen deposition on stigmas per visit, and pollinator importance (PI) as the product of PE and visit frequency. These more informative networks, here produced for a low diversity heathland habitat, reveal that plant–pollinator interactions are more specialized than shown in most previous studies. At the studied site, the specialization index was lower for the visitation network than the PE network, which was in turn lower than for the PI network. Our study shows that collecting PE data is feasible for community-level studies in low diversity communities and that including information about PE can change the structure of interaction networks. This could have important consequences for our understanding of threats to pollination systems.


2002 ◽  
Vol 17 (S2) ◽  
pp. S20-S21
Author(s):  
Gregg Greenough ◽  
Ziad Abdeen ◽  
Bdour Dandies ◽  
Radwan Qasrawi

2019 ◽  
Vol 3 (6) ◽  
pp. 723-729
Author(s):  
Roslyn Gleadow ◽  
Jim Hanan ◽  
Alan Dorin

Food security and the sustainability of native ecosystems depends on plant-insect interactions in countless ways. Recently reported rapid and immense declines in insect numbers due to climate change, the use of pesticides and herbicides, the introduction of agricultural monocultures, and the destruction of insect native habitat, are all potential contributors to this grave situation. Some researchers are working towards a future where natural insect pollinators might be replaced with free-flying robotic bees, an ecologically problematic proposal. We argue instead that creating environments that are friendly to bees and exploring the use of other species for pollination and bio-control, particularly in non-European countries, are more ecologically sound approaches. The computer simulation of insect-plant interactions is a far more measured application of technology that may assist in managing, or averting, ‘Insect Armageddon' from both practical and ethical viewpoints.


2005 ◽  
Author(s):  
Ariel-Ann Lyons ◽  
Connie Nelson
Keyword(s):  

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