Following determination of cold tolerance traits, carabid size was subsequently determined by measuring the distance between the labrum and the posterior end of the elytra (Roger et al., 2012 ). Measurements were made using a camera (Zeiss AxioCam ERc5s® HD) mounted on an ×9 binocular microscope. Photographs were taken using Intelcam software and morphological measurements made using the image processing software Image J® (v. 1.48). Size was determined for a total of 948 carabids over the 2‐year sampling period and the effect of size on carabid thermotolerance was investigated using this subset. The size of B. quadrimaculatum was not determined due to a lack of individuals when performing the size calculations.
Axiocam erc5s hd
Manufactured by Zeiss
The AxioCam ERc5s® HD is a high-definition digital camera designed for microscopy applications. It features a CMOS sensor with a resolution of 5 megapixels and captures images in color. The camera is capable of live streaming and provides a direct USB 3.0 interface for image data transfer.
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Lab products found in correlation
2 protocols using axiocam erc5s hd
1
Carabid Morphology and Thermotolerance
2
Measuring Insect Body Size via Tibial Length
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The hind tibia of parasitoids and of the corresponding aphid mummy (which gives a measure of the host size at the moment of its death) were measured using a camera (Zeiss AxioCam ERc5s® HD) mounted on an x9 binocular microscope. Photographs were taken using Intelcam software and morphological measurements made using the image processing software Image J® software (v. 1.48). Tibia length was chosen since it is a commonly used indicator of body size in insects and correlates strongly to other measures such as dry mass (Godfray1994; Cohen et al., 2005) .
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