Pronotum Length Measurement in G. texensis

Immediately prior to being placed in a trial, males were weighed on a Denver Instruments TP-64 digital balance (to the nearest 0.01 g) and the pronotum length measured using a stereoscope equipped with Leica LAS image analysis software (Leica Microsystems Inc., Buffalo Grove, IL, USA). Pronotum length (the distance from the anterior to posterior edges of the pronotum at the midline) is an excellent proxy for body size inG. texensis (Kelly, Tawes & Worthington, 2014 (link)).

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Kelly C.D., Telemeco M.S, & Bartholomay L.C. (2015). Are attractive male crickets better able to pay the costs of an immune challenge?. PeerJ, 3, e1501.

Publication 2015

Leica LAS image analysis software

Body size Buffalo Denver Males

Corresponding Organization :

Other organizations : Université du Québec à Montréal, Iowa State University, Pacific Science Center, University of Wisconsin–Madison

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Variable analysis

independent variables

None explicitly mentioned

dependent variables

Body weight (measured to the nearest 0.01 g)
Pronotum length (measured using a stereoscope equipped with Leica LAS image analysis software)

control variables

Denver Instruments TP-64 digital balance used to measure body weight
Stereoscope equipped with Leica LAS image analysis software used to measure pronotum length

controls

No positive or negative controls were explicitly mentioned in the provided information.

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