Environmental Engineering Reference
In-Depth Information
180
Species No.
160
Wet land Species
140
Diversity Index
120
Evenness (Species
distribution)
100
80
60
40
20
0
Kaylana Akheraj Pond Umed Sagar
Gudha
Balsamand
Barli
Khejarli
oor Sagar
Umed
Bhawan Pond
Fig. 17.2
Showingaviandiversitystudysites
maximumpotentialtoholddiversity(
H
max
= 5.10).
The habitat is restricted only to rocky type and
some of the disturbance due to tourism and boating
might be attributing to the low diversity of the lake.
44specieswerewetlandspecies(Table
17.3
and
Fig.
17.2
).
The water body is small and shallow, its maxi-
mumpotentialofdiversity(
H
max
) was found to be
4.66, and the evenness of this water body was
ranked2nd(
E
= 0.81) which suggest that even after
disturbance, the wetland holds good distribution
of all occurring species. The pond is disturbed in
the recent past, and the crop ields surrounding
the pond are increasing the organic contents and
increasing eutrophication. Waste disposal near
the pond is another threat. Akheraj pond is one of
the most diversiied ponds in the Jodhpur.
Akheraj Pond
Thepondissituated(26°17′ 51 N and 72° 58′ 54
E) about 7 km west of Jodhpur besides Kaylana
Lake and is illed with the excess water of
Kaylana Lake which is a small water body sized
0.15 km
2
surrounded by croplands and commer-
cial buildings (Table
17.3
). This small water
body is a very good bird watching site as due to
its small size with shallow banks with vegetation
of
Typha latifolia
(Typha)and
Prosopis julilora
which support several resident birds like purple
moorhen (
Porphyrio porphyrio
), white-breasted
waterhen (
Amaurornis phoenicurus
), Indian
moorhen(
Gallinula chloropus
), and many other
reed loving birds. The loating vegetation is
mainlywaterhyacinth(
Eichhornia
sp.) and sub-
merged vegetation is mainly
Vallisneria spiralis
.
About an average of 1,457 individuals of 106
species of 57 families were recorded from obser-
vations from 2008 to 2012. Alpha diversity was
foundsecondhighest(
ʱ
= 3.79). Out of 106, only
Umed Sagar
The pond is located at the latitude and longitude
coordinates of 26.15′58 N and 72.56,32 E near
Jodhpur (Table
17.3
). Umed Sagar is an artii-
ciallyconstructeddambyMaharajaUmedSingh
in 1933 for the supply of drinking water. This
pond spreads over an area of 27 km
2
. It is located
near Kaylana Lake.
It is an open wetland surrounded by crop ields
from three sides with a dam on the other side. The
banks are muddy and bounded by thatched bio-
fencing of dead branches of
P. julilora
. About an
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