Full text: Remote sensing for resources development and environmental management (Vol. 2)

tal habitat 
ea (ha) 
. 95 
evel in both 
ere was no 
als but the 
at there was 
Is, the bird 
:eed in the 
st amount of 
er this test 
ude of the 
rovide any 
Df available 
ire likly to 
r prediction 
necessary to 
rences could 
iphs between 
e level of 
pes may have 
ird species 
e looked at 
numbers of 
amount of 
lity, in the 
rather than 
in suitable 
species so 
s therefore 
;s with the 
re likely to 
s of finding 
ne required 
ber of units 
i the air 
tests were 
reeding and 
iked at: 
f units of 
:eding and 
rea per unit 
>er of units 
eding and 
in level was 
sison could 
affects of 
ikelihood of 
different variables to predict bird species 
numbers, bird abundance and bird species 
diversity. Unfortunately there has yet to be 
any agreement. This makes any investigations 
using air photographs more difficult. Of the 
tests carried out a possible relationship was 
identified between area of woodland and 
number of breeding species. No estimates 
could be made concerning species abundance, 
the type of species actually breeding or 
their distribution in the woodland. However, 
the results are not totally negative, 
suggesting prediction may still be possible. 
The next stage of this research will be to 
look at all the variables which have been 
identified in the literature in woodland bird 
population studies and to investigate how 
many of these variables can be obtained from 
air photographs. It may then be possible to 
combine equations using suitable variables. 
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sion in the 
¡fulness of 

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