~
00
Table 11.3. Comparison of Guild Structures of Forest Birds in Coastal Southeas t Alaska, A dja cent Interior Canada, and Chiloe
Guild
Kruska l-Wallis
p
Big-Tree Users
CC
CD
AD
AC
Ch
12.86
0.012
(16.5)
(15.2)
(12.3)
(8.0)
(2.5)
Covered Nesters
CC
Ch
CD
AC
AD
12.54
0.014
(17.5)
(14.3)
(9.3)
(6.3)
(4.5)
~
Understory Birds
AD
CD
CC
AC
Ch
8.01
0.066
~
(14.7)
(14.0)
(12.3)
(8.3)
(4.3)
~
Aerial Feeders
CD
Ch
CC
AD
AC
15.01
0.005
(18.0)
(14.5)
(10.0)
(5.5)
(5.3)
'" 0
Canopy Seed Predators
CC
Ch
CD
AC
AD
14.01
0.007
::s
(17.5)
(14.3)
(9.3)
(6.5)
(4.5)
~
Leaf-Gleaners
CC
CD
AD
AC
Ch
14.94
0.005
~
(16.5)
(15.2)
(12.3)
(8.0)
(2.5)
The frequency of species in each guild for each regional forest type is compared by Kruskal -Wallis test, ranked in descending order
(average ranks in parent heses), and the position of Chiloe birds in this
rank-order is determined by inspection . Codes are as follows:
AD
= Alaska deciduo us; AC
= Alaska coniferous; Ch
= Chiloe; CD
= Canada deciduous; CC
= Canada coniferous . By region,
Chiloe is closest to Alaska for three guilds, and to Canada for the other three guilds. By forest type, Chiloe is closest to northern
conifer forests for five guilds and about equidistant between conifer and deciduous for one guild (aerial) .