Observations of the feather on microstructures of little egrets and great egrets

HOU Senlin, FEI Yiling, LIU Dawei, ZHANG Ning

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (1) : 156-162.

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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (1) : 156-162. DOI: 10.12302/j.issn.1000-2006.202008043

Observations of the feather on microstructures of little egrets and great egrets

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Abstract

【Objective】 The objective of this study was to explore differences in the microstructures of bird feathers and identify the birds. 【Method】 Remiges, chest feather, rectrix and feathers similar to the demoiselle of the little egret (Egretta garzetta) and great egret (E. alba) were selected as the research objects. The number of hooked barbules, ventral teeth and cilia of the four types of feathers were observed using scanning electron microscopy; we also analyzed and compared the data concurrently by SPSS18.0. 【Result】 For remiges, we found distinct differences between two species in terms of the length of the handle of the base, the number of hooked barbules, the number of cilia from distal barbules, and the length of the handle of the base from proximal barbules; the exception was for the number of ventral teeth. For the chest feather and rectrix, we found distinct differences between two species in the length of the handle of the base, the number of ventral teeth, the number of hooked barbules, the number of cilia from distal barbules, and the number of ventral teeth from proximal barbules. For the feather similar to demoiselle, we found distinct differences between two species in the number of cilia and the length of the handle of the base. 【Conclusion】 With the exception of the ventral teeth of remiges, other selected indicators may provide references to identify the little egrets and great egrets.

Key words

little egret (Egretta garzetta) / great egret(Egretta alba) / feather / microstructure

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HOU Senlin , FEI Yiling , LIU Dawei , et al. Observations of the feather on microstructures of little egrets and great egrets[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2022, 46(1): 156-162 https://doi.org/10.12302/j.issn.1000-2006.202008043

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