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The effect of aerial spraying of two pesticides on semi-arid grasslands

Grant


Scheme


  • Linkage Projects

Abstract


  • Animals in semi-arid ecosystems respond positively to natural pulses of food availability. New perturbations that interrupt these pulses are likely to have significant ecosystem effects. This research will investigate the effects of reducing the amplitude of a pulse of high food availability, through the use of pesticides to control locust outbreaks. We will quantify the impact of 2 pesticides, fipronil and metarhizium, on the structure and function of semi-arid grasslands. Core to our approach is a large field-based experiment with replicated spraying treatments. We will assess impacts on non-target invertebrates, their predators, reptiles, and soil processes including decomposition, nutrients and changes in microbial assemblages.

Date/time Interval


  • 2011 - 2015

Sponsor Award Id


  • LP110200105

Local Award Id


  • 100865

Scheme


  • Linkage Projects

Abstract


  • Animals in semi-arid ecosystems respond positively to natural pulses of food availability. New perturbations that interrupt these pulses are likely to have significant ecosystem effects. This research will investigate the effects of reducing the amplitude of a pulse of high food availability, through the use of pesticides to control locust outbreaks. We will quantify the impact of 2 pesticides, fipronil and metarhizium, on the structure and function of semi-arid grasslands. Core to our approach is a large field-based experiment with replicated spraying treatments. We will assess impacts on non-target invertebrates, their predators, reptiles, and soil processes including decomposition, nutrients and changes in microbial assemblages.

Date/time Interval


  • 2011 - 2015

Sponsor Award Id


  • LP110200105

Local Award Id


  • 100865