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Disclaimer note - WWF - Pakistan

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Detailed Ecological Assessment Report 2008 – Keti Bunder<br />

Figure 7 – Shannon and Margalef indexes for summer and winter at Keti Bunder<br />

Diversity values<br />

3.5<br />

3<br />

2.5<br />

2<br />

1.5<br />

1<br />

0.5<br />

0<br />

2.89<br />

2.38 2.32<br />

2.77<br />

Summer Winter<br />

Season<br />

Shannon Index<br />

Margalef Index<br />

3.3.4 Discussion<br />

More species of reptiles and amphibians were recoded during summer that in<br />

winter at Keti Bunder. Given the hibernating nature of reptiles and amphibians,<br />

thus is not an unusual phenomenon. The evenness of species was greater in<br />

winter than summer presumably because in summer there is more variation in the<br />

available species population<br />

3.3.5 Threats and recommendations<br />

3.3.5.1 Threats<br />

• The increased demand of seafood for export has led to the mechanization<br />

of fishing crafts, which is not only responsible for over-exploitation of<br />

fishery resources but also causing threats to un-targeted vulnerable and<br />

endangered sea turtle species through their entanglement in fishing gears<br />

or accidental capture.<br />

• Due to lack of proper sewage water and solid waste disposal systems,<br />

Keti Bunder area is heavily polluted. Extensive farmland and agricultural<br />

activities are causing pesticides contamination in the sea and ground<br />

water, keeping the fauna of the sea, as well the population of Keti Bunder,<br />

at stake.<br />

• All the lizards and snakes are regarded as poisonous by the locals and<br />

thus are killed on sight, without considering its impacts, ultimately<br />

decreasing the herpetile population.<br />

• Some of the reptilian species, which are protected under IUCN categories,<br />

are killed on roads. The road-kills of Varanus species (Monitor lizards) are<br />

self-evident and are increasing at a rapid scale due to infrastructure and<br />

road construction.<br />

<strong>WWF</strong> <strong>Pakistan</strong> – Indus for All Programme Page 49 of 188

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