Threats to the aquatic ecosystem by human activities constitute threats to the
biodiversity of such ecosystem, which affect the quality of human life in the wetland area, either
directly or indirectly. The Hadejia-Nguru wetlands consist of several temporary and permanent
floods and drylands. Aquatic insects and the aquatic stages of some terrestrial insects were
sampled using water net, plankton net, sweep net, pitfall traps and pooters from seven locations
in the wetland. Collected insects were identified using several keys. Twenty species of aquatic
insects belonging to seven orders were recorded. With the highest diversity observed at Nguru
Lake which is a permanent water body. The order hemiptera is the most represented taxa in
the wetland. Factors such as draught, pollution, macrophyte cover, nature of substratum were
implicated as affecting the diversity and species richness of the aquatic insects in the wetland. It
was recommended that the present survey be extended to cover a seasonal and spatial study of
the insects, as well as investigating the interaction within and between species, in order to
establish vital links among insects and other organisms that inhabit the wetland.
Threats to the aquatic ecosystem by human activities constitute threats to thebiodiversity of such ecosystem, which affect the quality of human life in the wetland area, eitherdirectly or indirectly. The Hadejia-Nguru wetlands consist of several temporary and permanentfloods and drylands. Aquatic insects and the aquatic stages of some terrestrial insects weresampled using water net, plankton net, sweep net, pitfall traps and pooters from seven locationsin the wetland. Collected insects were identified using several keys. Twenty species of aquaticinsects belonging to seven orders were recorded. With the highest diversity observed at NguruLake which is a permanent water body. The order hemiptera is the most represented taxa inthe wetland. Factors such as draught, pollution, macrophyte cover, nature of substratum wereimplicated as affecting the diversity and species richness of the aquatic insects in the wetland. Itwas recommended that the present survey be extended to cover a seasonal and spatial study ofthe insects, as well as investigating the interaction within and between species, in order toestablish vital links among insects and other organisms that inhabit the wetland.
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