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Ticks associated with wild mammals in Ghana
Y Ntiamoa-Baidu1, C Carr-Saunders, B E Matthews
1Zoology Department, University of Ghana, Legon, Accra, Ghana. YNtiamoa@wwfint.org
Bulletin of Entomological Research
|June 18, 2005
Summary
Most Ghanaian tick species specialize on specific wild mammal orders, indicating strong host specificity. This tick-host association, influenced by habitat and climate, is crucial for tick survival.
Area of Science:
- Veterinary Entomology
- Parasitology
- Wildlife Ecology
Background:
- Ticks are significant vectors of disease in wildlife and humans.
- Understanding tick-host associations is vital for predicting disease transmission and managing tick populations.
- Ghana's diverse ecosystems host numerous wild mammal species, providing varied ecological niches for tick adaptation.
Purpose of the Study:
- To investigate the host range and specificity of tick species found on wild mammals in Ghana.
- To determine the ecological factors influencing tick distribution and host associations.
- To assess the degree of host specificity among Ghanaian tick populations.
Main Methods:
- Collection and identification of 21 tick species from wild mammals across Ghana's savanna, forest, and coastal zones.
- Analysis of tick distribution patterns across different mammalian orders and specific host species.
- Statistical association analysis to identify major hosts and habitat preferences for tick species.
Main Results:
- Most tick species exhibited host specificity, primarily feeding on hosts within a single mammalian order (artiodactyls, carnivores, rodents, pholidotes).
- Seven of the ten most common forest tick species showed significant associations with specific host species or groups.
- A minority of tick species were broadly distributed across multiple host orders or lacked a distinct major host.
Conclusions:
- Tick-host associations in Ghana are largely specific, with most species adapted to particular mammalian hosts and distinct habitats.
- Host specificity is not an artifact of sampling but a genuine ecological characteristic of these tick populations.
- Climate, vegetation, and host biology collectively shape tick distribution and survival, underscoring the importance of these factors in tick ecology.