Does the efficiency of bird watching differ in forest paths from in the forests?
林道と林内でバードウォッチングの効率に違いはあるのか?

Yuichi YAMAURA, Masatoshi YUI
2002 Tohoku Shinrin Kagakkaishi  
the efficiency of bird watching differ in for・ est paths from in the forests ? Tohoku J. For . Sci. 7 :12 − 19, 2002 We examined the efficiency of bird watching on forest paths and 50 meters within the urban forest , This study adopted a plot census method with observation points set on forest paths that are 3 meters wide and farther in the forest itself . and birds that appeared within a 50 − meter observation radius were recorded . In the forest . observation points were set 50 meters away
more » ... t 50 meters away from forest paths . We compared the number of species , the total number of individuals , the degree of watching detectability , and Flsynthetically evaluated value 門 indices of bird watching outcome on forest paths and in the forest itself Results indicated that there was no difference in each variable in most different forest types . Also, comparing the number of each bird species on forest paths and in the forests , the frequency on forest paths was not significantly lower than that in the forests in any of the species . In conclusion , it can be said that bird watching on forest paths is as effective as in the forests . 1.は じ め に
doi:10.18982/tjfs.7.1_12 fatcat:vfus6rm26zbcfjoysuiy76dy3y