Table 1. Study area of non-volant small mammals in
Coorg
|
Area |
Location |
Coordinates |
Altitude (m) |
Vegetation (forest) type (Pascal &
Meher-Homji 1968) |
|
Madikeri |
Shanthi
Estate |
12°24'28.1"N,
75°44'24.2"E |
935 |
Medium
elevation evergreen |
|
Madikeri |
Roshanara |
12°24'47.06"N,
75°45'05.36"E |
1000 |
Medium
elevation evergreen |
|
Kallur |
Rainforest
Retreat |
12°28’32.1”N,
75°42’38.7”E |
1060 |
Medium
elevation evergreen |
|
Galibeedu |
Golden
Mist |
12°27'53.6"N,
75°41'41.3"E |
1110 |
Medium
elevation evergreen |
|
Theralu |
SAI
Sanctuary |
11°59'49.7"N,
75°53'08.8"E |
815 |
Medium
elevation evergreen |
|
Kushalnagara |
Last
Resort |
12°22'54.8"N,
75°54'31.2"E |
650 |
Moist
deciduous |
|
Birunani |
Ponnya
Estate |
12°01’53”N,
75°56’06”E |
800 |
Medium
elevation evergreen |
|
Hakkathur |
Rose
Estate |
12°21'17.8"N,
75°45'28.6"E |
950 |
Medium
elevation evergreen |
|
Ponnampet |
Raja's
Estate |
12°08'38.5"N,
75°55'52.3"E |
830 |
Moist
deciduous |
|
Kutta |
Palthope
Estate |
12°0'25.6N,
76°02'15.7"E |
915 |
Moist
deciduous |
|
Kutta |
Cinchona
Estate |
11°58'07.9"N,
76°03'13"E |
905 |
Moist
deciduous |
Table 2.
Small mammals trapped in different habitats in Coorg.
|
Taxon |
Agri |
Bamb |
Bana |
Card |
Coff |
Fore |
Habi |
Open |
Oran |
Tea |
Vani |
|
Rodentia:
Muridae |
|||||||||||
|
Bandicota
bengalensis |
+ |
+ |
+ |
+ |
|||||||
|
Golunda
ellioti |
+ |
+ |
|||||||||
|
Millardia
meltada |
+ |
+ |
|||||||||
|
Mus
booduga |
+ |
+ |
+ |
+ |
|||||||
|
Mus
musculus |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
||
|
Rattus
rufescens |
+ |
+ |
+ |
||||||||
|
Rattus
satarae |
+ |
+ |
|||||||||
|
Rattus
wroughtoni |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
||||
|
Vandeleuria
nilagirica |
+ |
||||||||||
|
Rodentia:
Sciuridae |
|||||||||||
|
Funambulus
tristriatus |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
||||
|
Rodentia:
Platacanthomyidae |
|||||||||||
|
Platacanthomys
lasiurus |
+ |
||||||||||
|
Eulipotyphla:
Soricidae |
|||||||||||
|
Suncus
etruscus |
+ |
+ |
|||||||||
|
Suncus
murinus |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
|
|
Suncus
niger |
+ |
+ |
+ |
+ |
+ |
+ |
+ |
||||
Table 3. Average trap
success of non-volant small mammals in Coorg
|
Species |
Total captures |
Habitats |
Average (SD) |
|
B. bengalensis |
7 |
4 |
0.25 (0.13) |
|
F. tristriatus |
35 |
7 |
0.57 (0.57) |
|
G. ellioti |
5 |
2 |
0.2 (0.14) |
|
M. meltada |
9 |
2 |
0.35 (0.35) |
|
M. booduga |
20 |
4 |
0.32 (0.32) |
|
M. musculus |
53 |
9 |
0.54 (0.2) |
|
P. lasiurus |
2 |
1 |
0.3 (0) |
|
R. rufescens |
10 |
3 |
0.13 (0.05) |
|
R. satarae |
24 |
2 |
1.65 (2.19) |
|
R. wroughtoni |
108 |
7 |
1.74 (1.57) |
|
S. etruscus |
2 |
2 |
* |
|
S. murinus |
67 |
11 |
0.77 (1.12) |
|
S. niger |
67 |
8 |
0.84 (0.75) |
|
V. nilagirica |
3 |
1 |
0.5 (0) |
|
Total |
412 |
|
3.79 (3.39) |
Table
4. Goodness of fit test for small mammal
abundance in vegetation zones in Coorg
|
Vegetation zone |
Area (ha) |
Individuals trapped (Ob) |
Expected individuals (Ex) |
G |
|
MEEF |
18.99 |
292 |
338.11 |
-42.81 |
|
MDF |
4.15 |
120 |
73.89 |
58.19 |
|
Total |
23.14 |
412 |
412 |
30.76 |
MEEF – Medium elevation evergreen forest; MDF
– Moist deciduous forest; G – Goodness of fit
Table
5. Goodness of fit test for small mammal
abundance in different habitats in Coorg
|
Habitat |
Area (ha) |
Individuals trapped (Ob) |
Expected individuals (Ex) |
G |
|
Agriculture |
2.5 |
44 |
44.51 |
-0.51 |
|
Bamboo |
0.55 |
31 |
9.79 |
35.72 |
|
Banana |
1.2 |
8 |
21.37 |
-7.86 |
|
Cardamom |
3 |
37 |
53.41 |
-13.58 |
|
Coffee |
7 |
104 |
124.63 |
-18.82 |
|
Forest |
1.6 |
51 |
28.49 |
29.70 |
|
Habitation |
0.95 |
22 |
16.91 |
5.78 |
|
Open |
4.84 |
108 |
86.17 |
24.38 |
|
Orange |
0.5 |
2 |
8.90 |
-2.99 |
|
Tea |
0.5 |
4 |
8.90 |
-3.20 |
|
Vanilla |
0.5 |
1 |
8.90 |
-2.19 |
|
Total |
23.14 |
412 |
412 |
92.88 |
Table
6. Diversity indices of non-volant small
mammals in 12 habitats in Coorg
|
|
S |
N |
DMg |
H’ |
E |
D |
Dominance |
|
Agriculture |
9 |
41 |
2.15 |
2.00 |
0.91 |
0.85 |
0.22 |
|
Bamboo |
6 |
31 |
1.46 |
1.45 |
0.81 |
0.72 |
0.35 |
|
Banana |
5 |
8 |
1.92 |
1.49 |
0.93 |
0.75 |
0.37 |
|
Cardamom |
7 |
37 |
1.66 |
1.56 |
0.80 |
0.75 |
0.35 |
|
Coffee |
9 |
104 |
1.72 |
1.90 |
0.87 |
0.82 |
0.32 |
|
Forest |
5 |
51 |
1.02 |
1.25 |
0.78 |
0.67 |
0.45 |
|
Habitation |
5 |
22 |
1.29 |
1.03 |
0.64 |
0.50 |
0.68 |
|
Open |
9 |
108 |
1.71 |
1.76 |
0.80 |
0.80 |
0.28 |
|
Orange |
2 |
2 |
1.44 |
0.69 |
1.00 |
0.50 |
0.50 |
|
Pineapple |
2 |
3 |
0.91 |
0.64 |
0.92 |
0.44 |
0.67 |
|
Tea |
3 |
4 |
1.44 |
1.04 |
0.95 |
0.62 |
0.50 |
|
Vanilla |
1 |
1 |
0 |
0 |
0 |
0 |
1.00 |
S – species richness; N – no. of individuals;
DMg – Margalef Richness Index; H’ – Shannon-Weiner Diversity Index; E –
Pielou’s Evenness Index; D – Simpson’s Diversity index; Dominance –
Berger-Parker Index
Table 7. Significant variance in Shannon-Wiener
Diversity index between habitats using modified t-test by Hutcheson (1970).
|
|
Agri |
Bamb |
Bana |
Card |
Coff |
Fore |
Habi |
Open |
Oran |
Pine |
Tea |
Vani |
|
Agri |
|
0.1669 |
0.3766 |
0.2697 |
0.7820 |
0.0344 |
0.0213 |
0.4944 |
<.0001* |
0.0014 |
0.0770 |
<.0001* |
|
Bamb |
|
|
0.9337 |
0.7570 |
0.1569 |
0.5291 |
0.2773 |
0.3118 |
0.0054 |
0.0285 |
0.4023 |
<.0001* |
|
Bana |
|
|
|
0.9011 |
0.4341 |
0.6384 |
0.4106 |
0.6003 |
0.1219 |
0.1269 |
0.4676 |
0.0128 |
|
Card |
|
|
|
|
0.2846 |
0.3215 |
0.1680 |
0.5144 |
0.0015 |
0.0144 |
0.2914 |
<.0001* |
|
Coff |
|
|
|
|
|
0.0114 |
0.0126 |
0.5810 |
<.0001* |
0.0016 |
0.0894 |
<.0001* |
|
Fore |
|
|
|
|
|
|
0.5067 |
0.0375 |
0.0020 |
0.0564 |
0.6326 |
<.0001* |
|
Habi |
|
|
|
|
|
|
|
0.0308 |
0.2251 |
0.2779 |
0.9871 |
0.0013 |
|
Open |
|
|
|
|
|
|
|
|
<.0001* |
0.0034 |
0.1358 |
<.0001* |
|
Oran |
|
|
|
|
|
|
|
|
|
0.8063 |
0.4110 |
1.0000 |
|
Pine |
|
|
|
|
|
|
|
|
|
|
0.3950 |
0.0592 |
|
Tea |
|
|
|
|
|
|
|
|
|
|
|
0.0538 |
|
Vani |
|
|
|
|
|
|
|
|
|
|
|
|
Highlighted cells show significant
differences between H’ between habitats, while those marked with asterisk show significance
after Bonferroni correction

Figure 1. Proportions of individuals of small mammals
trapped in Coorg.


Figure 2. (a) Proportion of new individuals captured
per night; (b) Proportion of recaptures

Figure 3. Single linkage
clustering of species richness of non-volant small mammals across habitats
using Jaccard’s Index of Similarity

Figure
4. Average trap success of non-volant
small mammals in broad habitats in Coorg

Figure 5. Affiliations to habitats by species.

Figure 6. Habitats occupied by non-volant small mammals
in proportions (stacked).

Figure 7. Single linkage
clustering of abundances of non-volant small mammals across
habitats using
Morisitta-Horn Index of Similarity
Figure
8. Correspondence Analysis of non-volant small mammals depicting the dependence
of
presence
and abundance of species on habitat types.
Numbers in parenthesis are percent variation
explained
by each correspondence axis. Factor
loading for banana and V. nilagirica
are divided
by
10 before plotting to avoid scale problem.

Figure
9. Principal Component Analysis of non-volant small mammal data
depicting
diversity profiles among habitats.
Numbers in parenthesis are percent
variation
explained by each principal component.

Image 1. Non-volant
small mammal trapping sites in Coorg Western Ghats, Karnataka

