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Behavioural responses to potential dispersal cues in two economically important species of cereal-feeding eriophyid mites.


ABSTRACT: Passively dispersing organisms should optimise the time and direction of dispersal by employing behaviours that increase their probability of being successfully transported by dispersal agents. We rigorously tested whether two agriculturally important passively-dispersing eriophyoid species, wheat curl mite (WCM) and cereal rust mite (CRM), display behaviours indicating their readiness to depart from current host plants in the presence of potential dispersal cues: wind, an insect vector and presence of a fresh plant. Contrary to our expectations, we found that both species decreased their general activity in the presence of wind. When exposed to wind, WCM (but not CRM) significantly increased behaviour that has previously been considered to facilitate dispersal (in this case, standing vertically). Our study provides the first sound test of the function of what have been interpreted as dispersal-related behaviours of eriophyid mites. The low proportion of WCM exhibiting dispersal behaviour suggests there may be predisposed dispersers and residents in the population. Moreover, we found that WCM was generally more active than CRM, which is likely a contributing factor to its high invasive potential.

SUBMITTER: Kiedrowicz A 

PROVIDER: S-EPMC5478656 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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Behavioural responses to potential dispersal cues in two economically important species of cereal-feeding eriophyid mites.

Kiedrowicz Agnieszka A   Kuczyński Lechosław L   Lewandowski Mariusz M   Proctor Heather H   Skoracka Anna A  

Scientific reports 20170620 1


Passively dispersing organisms should optimise the time and direction of dispersal by employing behaviours that increase their probability of being successfully transported by dispersal agents. We rigorously tested whether two agriculturally important passively-dispersing eriophyoid species, wheat curl mite (WCM) and cereal rust mite (CRM), display behaviours indicating their readiness to depart from current host plants in the presence of potential dispersal cues: wind, an insect vector and pres  ...[more]

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