He has worked extensively on the conservation of Jamaica’s Giant Swallowtail Butterfly, Papilio homerus, as well as the Caribbean Manatee Trichechus manatus. He has conducted studies on the taxonomy and biodiversity of some of Jamaica’s terrestrial invertebrates including the carabid beetles, aphids, noctuid and arctiid moths, millipedes and land snails. Pest ecology projects include the control of the yam weevil Palaeopus costicollis, the banana scarring moth Pyroderces releyi, the brown citrus aphid Toxoptera citricidus, vectors of citrus greening disease, and the impact of birds on insect pests of coffee.