CHANGES IN A POLLINATOR FOOD WEB IN THE FACE OF CLIMATE CHANGE

CHANGES IN A POLLINATOR FOOD WEB IN THE FACE OF CLIMATE CHANGE
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Total Pages : 155
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ISBN-10 : OCLC:1112495624
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Rating : 4/5 (24 Downloads)

Book Synopsis CHANGES IN A POLLINATOR FOOD WEB IN THE FACE OF CLIMATE CHANGE by : Melissa Seidel

Download or read book CHANGES IN A POLLINATOR FOOD WEB IN THE FACE OF CLIMATE CHANGE written by Melissa Seidel and published by . This book was released on 2019 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding responses of food webs to climate change is vital, especially when those food webs influence important ecosystem services, like pollination, valued at over $3 billion globally. Historically the focus has been on single factors (e.g. temperature) and mechanisms (e.g. change in mortality). However, global climate change is predicted to alter temperature and moisture simultaneously. Additionally, thermal and hygric physiological performance and species interactions are both likely mechanisms underlying food web responses to changing climate. The current lack of a synergistic, mechanistic understanding of how food webs respond to key aspects of global climate change is a major research gap. Here we questioned how changes in temperature and moisture may alter food web composition through filtering of sensitive taxa (physiological limits) or by modifying consumption (trophic interactions). We placed bumblebees (Bombus impatiens) and tomato plants (Solanum lycopersicum) in 32 mesocosms within a greenhouse in Bowling Green, OH in July 2018. We explored differences in fruit set and tomato quality by excluding half of the flowers from buzz-pollination via bags. Additionally, all mesocosms were categorized in four abiotic treatments (cool/dry, cool/moist, hot/dry, hot/moist), and were paired based on predator presence (with or without Green Lynx spiders (Peucetia viridans)).


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