TY - JOUR
T1 - Comparison of micrometer- and scanning electron microscope-based measurements of avian eggshell thickness
AU - Igic, B
AU - Hauber, ME
AU - Galbraith, JA
AU - Grim, T
AU - Dearborn, DC
AU - Brennan, PLR
AU - Moskat, C
AU - Choudhary, PK
AU - Cassey, Phillip
PY - 2010/12/1
Y1 - 2010/12/1
N2 - The study of avian eggshell structure, including composition, pigmentation, thickness, and strength, has important ecological and economic implications. Previous investigators have used a variety of techniques to derive either direct measures or indirect estimates of eggshell thickness. Assessing the repeatability and method agreement of different techniques is necessary to permit comparison of eggshell thickness values from different studies on various genetic stocks, populations, and species. We recorded and analyzed measurements of eggshell thickness using two methods, micrometers and scanning electron microscopy (SEM), for several Palaeognathae and Neognathae taxa, including nonpasserines and passerines. Applying a tolerance-interval approach, we found that repeatability of measurements for eggs with thinner shells (
AB - The study of avian eggshell structure, including composition, pigmentation, thickness, and strength, has important ecological and economic implications. Previous investigators have used a variety of techniques to derive either direct measures or indirect estimates of eggshell thickness. Assessing the repeatability and method agreement of different techniques is necessary to permit comparison of eggshell thickness values from different studies on various genetic stocks, populations, and species. We recorded and analyzed measurements of eggshell thickness using two methods, micrometers and scanning electron microscopy (SEM), for several Palaeognathae and Neognathae taxa, including nonpasserines and passerines. Applying a tolerance-interval approach, we found that repeatability of measurements for eggs with thinner shells (
KW - thickness measurement
KW - electron microscope
KW - tolerance interval
KW - avian eggshell
U2 - 10.1111/j.1557-9263.2010.00296.x
DO - 10.1111/j.1557-9263.2010.00296.x
M3 - Article
SN - 1557-9263
VL - 81
SP - 402
EP - 410
JO - Journal of Field Ornithology
JF - Journal of Field Ornithology
IS - 4
ER -