| biomechanics of the peafowl's crest reveals frequencies tuned to social displays. | feathers act as vibrotactile sensors that can detect mechanical stimuli during avian flight and tactile navigation, suggesting that they may also detect stimuli during social displays. in this study, we present the first measurements of the biomechanical properties of the feather crests found on the heads of birds, with an emphasis on those from the indian peafowl (pavo cristatus). we show that in peafowl these crest feathers are coupled to filoplumes, small feathers known to function as mechano ... | 2018 | 30485316 |
| ultraviolet reflectance structures of peacock feathers. | male peacock (pavo cristatus) tail feathers have an eyespot pattern with an inconspicuous black or dark blue center surrounded by brilliant, structural colors, such as blue, light brown, and yellow-green. under ultraviolet a (uva), the central part of the eyespot reflects uva better than the surrounding parts. herein, i examined various areas of eyespots on paraffin sections of feathers using an optical microscope, and characterized positional relationships between barbs and barbules. these anal ... | 2018 | 30298782 |
| incidences of mortality of indian peafowl pavo cristatus due to pesticide poisoning in india and accumulation pattern of chlorinated pesticides in tissues of the same species collected from ahmedabad and coimbatore. | incidences of mortality of indian peafowl pavo cristatus, the national bird (schedule i indian wild life protection act 1972), are rampant in india. between january 2011 and march 2017, around 550 peafowl in 35 incidences were reported dead across the country. due to the non-availability of fresh carcases, poisoning could not be confirmed. birds which died due to kite string injuries in ahmedabad (15) and accidents in coimbatore (5) were tested for residues of chlorinated pesticides, namely hexa ... | 2018 | 29569206 |
| evidence of exposure to usuv and wnv in zoo animals in france. | west nile virus (wnv) and usutu virus (usuv) are zoonotic arboviruses. these flaviviruses are mainly maintained in the environment through an enzootic cycle involving mosquitoes and birds. horses and humans are incidental, dead-end hosts, but can develop severe neurological disorders. nevertheless, there is little data regarding the involvement of other mammals in the epidemiology of these arboviruses. in this study, we performed a serosurvey to assess exposure to these viruses in captive birds ... | 2020 | 33266071 |
| differences in highly pathogenic h5n6 avian influenza viral pathogenicity and inflammatory response in chickens and ducks. | infection with h5n6 highly pathogenic avian influenza virus caused high mortality in chickens, while ducks often appear to be asymptomatic. but, some recent h5nx subtype viruses could cause high mortality in ducks. the variation between different species and the mechanisms by which some h5nx viruses cause death in ducks requires investigation to identify the key processes in influenza susceptibility and pathogenesis. here, we characterized two representative h5n6 viruses, a/pavo cristatus/jiangx ... | 2021 | 33584608 |