| Popis: |
We sampled the vertebrate fauna caught in a pipeline trench near Daly Waters, Northern Territory in the mid Dry season of 1999, and compared the species composition with that of a standardised quadrat-based survey protocol (using pitfall traps, Elliott traps and nocturnal and diurnal active searches). The proportion of records of snakes, pygopodids, frogs, two dragon species, the gecko Diplodactylus ciliaris and the rodent Pseudomys delicatulus was markedly greater in the pipeline than in the quadrat-based survey; this disparity was also evident in a pronounced size difference in the reptile species composition of the two techniques. The comparison demonstrates that the standard survey protocol has substantial biases against some species and groups of species and that additional sampling effort or specific new trapping techniques may be required for these taxa.The species composition of captures in this pipeline study differed substantially from the results from a larger section of this pipeline route con... |
