Related Experiment Videos
The Caribbean Amblyomma Program: some ecologic factors affecting its success.
Rupert Pegram1, Lisa Indar, Carlos Eddi
1FAO, Caribbean Amblyomma Program, Bridgetown, Barbados. rpegram@cgnet.com
Annals of the New York Academy of Sciences
|December 18, 2004
Summary
Eradicating the tropical bont tick (TBT) in the Caribbean faced delays due to ecological factors like cattle egret spread and varied land use. Effective TBT control requires tailored strategies considering local livestock management and environmental conditions.
Area of Science:
- Veterinary Entomology
- Tropical Ecology
- Parasitology
Background:
- The Caribbean Amblyomma Program aimed to eradicate the tropical bont tick (TBT) across several islands.
- Programmatic delays were influenced by funding and the complex ecological dynamics of TBT.
- Provisional TBT freedom was achieved on 6 of 9 islands after 8 years.
Purpose of the Study:
- To examine ecological factors influencing TBT eradication timelines and recrudescence.
- To investigate the role of cattle egrets in TBT dissemination.
- To analyze the impact of varying land use practices on tick eradication efforts.
Main Methods:
- Comparative analysis of TBT eradication progress across different Caribbean islands.
- Ecological assessment of factors such as avian species introduction and land management.
- Correlation of land use patterns (sugar vs. banana plantations, unimproved grazing) with eradication success.
Main Results:
- The spread of the cattle egret (Bulbucus ibis) likely facilitated TBT dissemination.
- Islands with "unimproved free-grazing" areas (Antigua, Nevis) faced significant challenges due to feral livestock.
- Islands with intensive agriculture (St. Lucia, St. Kitts) showed better compliance and fewer TBT recrudescence issues.
Conclusions:
- Land use management is a critical determinant of TBT eradication success in the Caribbean.
- Ecological factors, including invasive species and livestock management, necessitate adaptive and prolonged treatment strategies.
- Tailored, island-specific approaches are essential for effective control of the tropical bont tick.