Roosts and Roosting Habits of Rose-ringed Parakeet (Psittacula krameri) in Central Punjab (Pakistan)
نویسندگان
چکیده
منابع مشابه
Effect of photoperiod on the adrenal activities of male rose ringed parakeet, Psittacala krameri.
Adult male rose ringed parakeets were exposed to very long photoperiod (22 hr L: 2 hr D) and very short photoperiod (2 hr L: 22 hr D) daily for 60 days during different phases of the annual testicular cycle. Adrenal activities of the experimental birds were compared with that of parallel held natural photoperiodic birds. Marked atrophy of adrenocortical cells was noted in the glands of long pho...
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Rose-ringed parakeet (Psittacula krameri (Scopoli) damage to sunflower heads was estimated in two provinces of Pakistan during the spring of 1981. In seven districts of Punjab the damage ranged from 5.0-23.28 %, with an average of 11.72 %. In rainfed areas the damge was as high as 71.43%, with average of 38.29%. In Sind the damage was on the higher order. In nine districts the damage ranged fro...
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ژورنال
عنوان ژورنال: Pakistan Journal of Biological Sciences
سال: 1997
ISSN: 1028-8880
DOI: 10.3923/pjbs.1998.37.38