基本HTML版本
Intl. J. of Super Species Research 2012, Vol.2, No.1, 1
-
6
http://ijssr.sophiapublisher.com
4
Table 1 Prevalence and average abundance (per wing) of mites in different bird species captured at Urra field centre, south-east Spain
from 31
st
March-4
th
April, 2011
Bird species
Number of birds caught
Average mite abundance (per wing)
Mite prevalence (%)
Blackcap
(
Sylvia atricapilla
)
37
72.5
100
Sardinian warbler
(
Sylvia melanocephala
)
19
5.9
<18
Chiffchaff
(
Phylloscopus trochilus
)
13
145.5
50
Willow warbler
(
Phylloscopus trochilus
)
13
53.1
<31
House sparrow
(
Oasser domesticus
)
10
47.2
<67
Great tit
(
Parus major
)
7
14.4
<72
Greenfinch
(
Carduelis chloris
)
4
130
100
Cirl bunting
(
Emberiza cirlus
)
3
168.3
100
Nightungale
(
Luscinia megarhynchos
)
3
31.7
100
Serin
(
Serinus serinus
)
2
65
100
Blackbird
(
Turdus merula
)
2
21.5
100
Redstart
(
Phoenicurus phoenicurus
)
2
0.5
50
Subalpine warbler
(
Sylvia cantillans
)
2
0
0
Hoopoe
(
Upupa epops
)
1
0
0
Little owl
(
Athene noctua
)
1
0
0
Robin
(
Erithacus rubecula
)
1
0
0
Spotless starling
(
Sturnus unicolor
)
1
0
0
Thekla lark
(
Galerida thekla
e)
1
0
0
Bonelli’s warbler
(
Phylloscopus bonelli
)
1
0
0
Woodchat shrike
(
Lanius senator
)
1
0
0
4 Discussions
As these results clearly show, mite abundance varies
significantly between different bird species, with some
species (e.g. cirl buntings, chiffchaffs, greenfinches)
having very high numbers of mites per wing. Average
mite abundances can be misleading as some of the
considering bird species with both high prevalence of
averages were influenced by outliers (e.g. chiffchaff).
Considering bird species with both high prevalence of
mite infestations and high average mite abundances, it
becomes apparent that many of the more heavily and
commonly infested bird species tend to be gregario
species, such as cirl bunting, greenfinches, and serin.
These species often form large flocks, feeding and
roosting together (Svensson et al., 1999), providing
ideal opportunities for mites infestations (Proctor, 2003;