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Five species of molluscan borers belonging to families Teredinidae and Pholadidae were found infesting the mangrove plants of Karachi. Synonyms and differentiating characteristics of the following five species are presented and pallets and shells illustrated: Bankia rochi, B. campanellata, Dicyathifer manni, Lyrodus pedicellatus and Martesia striata. These are reported for the first time from Pakistan. No relation between size of wood and number of borers was found. In most cases, wood contained individuals of one species. However, occurrence of 2 or 3 species in the same wood was not...

Ayubia National Park, Khyber Pukhtoonkhwa Province, Pakistan is one of the 14 national parks in Pakistan. It is internationally known as a hot spot in the moist temperate West-Himalyan mountainous range. Many endangered (threatened) species are inhabited in the Park. The park is enriched with coniferous forests mixed with broad-leaved evergreen and deciduous trees. A total of 420 species of plants (9 species of fungi, 5 of lichens, 5 of gymnosperms, 65 of monocotyledons and 309 of dicotyledons were recorded. A total of 22 species of mammals(10 families),154 species of birds(42 families) and 8...

Seasonal changes in population dynamics of waterfowl species of the Clifton coast, Karachi, Pakistan was studied for a period of four years. Waterfowl species were classified on the basis of guild structure in order to gather information on foraging habits, diurnal rhythms and diet preference. A detailed ecological characteristic of the study site was given to provide the effect of composition of sediment and water quality on the diet of birds. Fifty three waterfowl species were divided into 6 guilds: 1, Herbivorous; 2, Stalking; 3, Fishing; 4, Visual Surface Foraging; 5; Tactile Surface...

Two species of marine turtles, namely Chelonia mydas (green turtle) and Lepidochelys olivacea (olive ridley) are found nesting on the beaches of Hawkesbay and Sandspit at Karachi. Female turtles were tagged by clipping monel metal tags on both of their front flippers. A total of 3093 green and 43 olive ridley turtles were tagged during the period 1982 to 1997. Tagged turtles were recovered from local coasts as well as from abroad when they migrate from the original tagging site; 576 (18 %) green and 12 (27.9 %) olive ridley were recaptured. The number of turtles recovered per year ranged from...