17Jul 2017

CLUTCH CHARACTERISTICS AND EGG DIAMETRICS OF INDIAN POND HERON (ARDEOLA GRAYII) IN JAMMU REGION (J&K).

  • Professor, Department of Zoology, University of Jammu.
  • Head, Department of Zoology, University of Jammu.
  • Research Scholar, Department of Zoology, University of Jammu.
  • Research Scholar, Department of Zoology, University of Jammu.
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The present study on clutch characteristics and egg diametrics of Indian Pond Heron (Ardeola grayii) was conducted for three consecutive years i.e., 2013, 2014 and 2015 in five different stations viz., station I (Haripur), station II (Mansar), station III (Gharana), station IV (Kalyana) and station V (Gho Manhasa) during the breeding season which commenced from May up to September. The overall mean clutch size was recorded to be 3.71?1.06 varying from 1 to 5. The clutch size was found to vary among different stations viz., 3.73? 0.76 (n=41) at station I, 4.07? 0.73 (n=14) at station II, 3.68? 0.88 (n=38) at station III, 3.71? 0.85 (n= 32) at station IV and 3.64? 1.02 (n=17) at station V. The eggs were recorded to be oval with greenish blue coloration and without any markings. Overall mean values of egg dimensions were recorded to be egg length (3.90?0.16 cm), egg breadth (2.78?0.19cm), egg volume (15.57?2.41 cm3), egg shape index (71.45?4.95) and egg weight (17.93?2.71gm). A statistically significant correlation was registered between egg length and egg volume (r= 0.4852) as well as between egg breadth and egg volume ( r= 0.8274).

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[D. N. Sahi, Roopama Gandotra, PawandeepKaur and Sakshi Koul. (2017); CLUTCH CHARACTERISTICS AND EGG DIAMETRICS OF INDIAN POND HERON (ARDEOLA GRAYII) IN JAMMU REGION (J&K). Int. J. of Adv. Res. 5 (Jul). 474-479] (ISSN 2320-5407). www.journalijar.com

*Pawandeep Kaur
Scholar, University of Jammu

DOI:

Article DOI: 10.21474/IJAR01/4741      
DOI URL: http://dx.doi.org/10.21474/IJAR01/4741

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