Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Norvège → Ecology, Behaviour and Conservation Status of Masai Giraffe (Giraffa camelopardalis tippelskirchi) in Tanzania

Norwegian University of Science and Technology (NTNU) 2016

Ecology, Behaviour and Conservation Status of Masai Giraffe (Giraffa camelopardalis tippelskirchi) in Tanzania

Marealle, Wilfred Njama

Titre : Ecology, Behaviour and Conservation Status of Masai Giraffe (Giraffa camelopardalis tippelskirchi) in Tanzania

Auteur : Marealle, Wilfred Njama

Université de soutenance : Norwegian University of Science and Technology (NTNU)

Grade : Doctoral thesis 2016

Résumé partiel
Globally, biodiversity resources have been in decline since mankind began to keep records of their surrounding environments. With the combination of different natural catastrophes over centuries and human-induced activities, the decline in biodiversity continues to accelerate. With the high rate of human population increase, demand for resources for both survival and development has increased, causing the rapid declines in biodiversity that are so vividly observed. As mankind realized this decline, areas were set aside to help protect and conserve the precious gifts of biodiversity for the benefit of future generations. Conservation efforts began over 3,000 years ago ; however, the first legal Protected Area (PA), Yellowstone National Park, was not established until 1872. Protected Areas (PAs) are the first line of defence in the global effort to protect biodiversity, particularly rare, endangered species and fragile ecosystems, and different categories of these areas with different levels of protection have been expanding worldwide in number and size since they were first established. In developing countries, many extremely negative challenges, including widespread conditions of poverty, rapid human population growth, biofuel projects, agriculture and political instability, are faced by those charged with the management of protected areas. The primary challenges facing biodiversity/wildlife conservation include human populations, land use and land cover change (LULC), diseases, alien and invasive species and illegal off-take. The focus of this thesis is on the behaviour, ecology and conservation of Masai giraffe (Giraffa camelopardalis tippelskirchi) in Tanzania. Giraffes are the most elegant, conspicuous and tallest animals of the African savannah. Giraffes prefer savannah and are responsible for the architectural beauty of trees through browsing. Giraffes are social but are non territorial because individuals within a group are in constant change. Females are more often in mixed herds with calves, whereas males maintain a primarily solitary life. Giraffes are widespread ; however, in a recent preliminary population estimate, an unnoticed decline in the total population as occurred because of habitat degradation and illegal hunting.

Présentation

Page publiée le 6 février 2018