Long Term Monitoring of the Trans-Located Hirola Population in Tsavo Conservation Area, Kenya

5 Oct 2009 Tsavo East National Park, Kenya, Africa Mammals

Kenneth Kimitei

The information that will be collected from the long term monitoring of hirola in turn will be used to determine factors including population size, distribution, density, habitat needs, age and sex structure, recruitment rate into the population, and animal population performance indicators (e.g. percentage of calves in the population, cow/calf ratios), and will be used to determine threats to the Tsavo population. From this, a site-specific management plan will be developed for this ex-situ population by 2010, which will then be implemented by the Kenya Wildlife Service, with continued monitoring feeding data back into the plan.

Hirola calves.

Hirola calves.

This project will produce a much-needed conservation management plan for the population of critically endangered hirola – Africa’s most threatened antelope - in Tsavo East National Park, Kenya. The Tsavo group, which was translocated from the natural range because of extensive threats and concerns about the species’ survival, represents a significant proportion of the global population, but currently lacks a focused management plan. Through monitoring individuals and groups (which can be recognised by unique features such as horn size and shape) I will gather vital ecological and population data such as range, population size, habitat preferences, and threats.

Hirola adult and Hearling.

Hirola adult and Hearling.

Data collection is done through various methods which include ground and aerial patrol, security patrol sightings, tour driver cards, running questionnaires and collaborating with other researchers and organization interested in hirola conservation. The information gathered will be used to make a site-specific management plan, which will be developed involving conservation experts, local communities, and other stakeholders. This plan will aim at increasing the hirola population to secure their status, by identifying the threats they are facing and preparing strategies to curb them. The plan will be implemented from 2010 by the Kenya Wildlife Service, who manage Tsavo East National Park, and will be modified, with feedback from ongoing monitoring.

This is an essential step in guaranteeing the future of the rare and elegant hirola; as threats still exist in the species’ natural range, and because no captive breeding efforts exist (there are no hirola in the world’s zoos) sound management of the Tsavo population is critical in ensuring this antelope’s long-term survival.

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