AVBS1002 Study Guide - Final Guide: Saltwater Crocodile, Wild Harvest, Molecular Evolution
10 Jan 2019
School
Department
Course
Professor
Document Summary
Crocodiles - triangle shaped nose, can see teeth when mouth closed. Compared to bird genomes, crocodilians evolved ~4 times slower than birds. Propose that low rates of molecular evolution in crocodilians may be driven by longer spacing of generations. Saltwater crocodile can be found in other islands, travelling long distance. Mtdna contains ~35 genes including variable coding and 1 hypervariable non-coding sequences. Results: 8 haplotypes across the species" range (3 in australia) They prefer short green feed, shelter in bushland. Protected but farmers can apply for permit to harm". The impact is greater with fewer domestic livestock, with more trees, less predation, less commercial harvest, and during drying trends. Production and conservation both suffer under current management. Evidence shows dingoes control invasive species free of charge. Wild dog control leads to increased kangaroo numbers if livestock numbers are low. Kangaroo control is enhanced by allowing greater predation by dingoes. Dingo control reduces their effectiveness as predators.
