نتایج جستجو برای: elephants

تعداد نتایج: 2148  

Journal: :Current biology : CB 2018
Lucy King Michael Pardo Sameera Weerathunga T V Kumara Nilmini Jayasena Joseph Soltis Shermin de Silva

Asian elephants (Elephas maximus) are threatened primarily by habitat loss and human-elephant conflict. In addition to establishing protected areas and corridors for wildlife, empowering farmers to protect their crops is crucial for Asian elephant conservation [1,2]. Elephants can habituate to artificial deterrents, hence natural biological alternatives are of great interest [2,3]. African elep...

Journal: :Veterinary parasitology 2006
A Dangolla D K Ekanayake R P V J Rajapakse J P Dubey I D Silva

Serum samples collected during August 2003-June 2004 from 45 privately owned captive and 8 elephants from the Pinnawala Elephant Orphanage were tested for the presence of antibodies against Toxoplasma gondii using the direct modified agglutination test (MAT). Antibodies were found in sera of 14 of 45 (32%) privately owned elephants with titers of 1:25 in three, 1:50 in three, 1:100 in three, 1:...

2015
Sarah A. Boyle Beth Roberts Brittany M. Pope Margaret R. Blake Stephen E. Leavelle Jennifer J. Marshall Andrew Smith Amanda Hadicke Josephine F. Falcone Katrina Knott Andrew J. Kouba Gregg Roman

Captive African (Loxodonta africana) and Asian (Elephas maximus) elephants can experience foot pathologies and arthritis. As a preventative measure against these pathologies and to alleviate the potential discomfort due to concrete substrates, some zoological institutions have renovated elephant housing to increase the amount of natural or shock-absorbent substrates. The objective of this study...

2015
Petra B. van den Doel Víctor Rodríguez Prieto Sarah E. van Rossum-Fikkert Willem Schaftenaar Erin Latimer Lauren Howard Sarah Chapman Nic Masters Albert D. M. E. Osterhaus Paul D. Ling Akbar Dastjerdi Byron Martina

BACKGROUND Elephants are classified as critically endangered animals by the International Union for Conservation of Species (IUCN). Elephant endotheliotropic herpesvirus (EEHV) poses a large threat to breeding programs of captive Asian elephants by causing fatal haemorrhagic disease. EEHV infection is detected by PCR in samples from both clinically ill and asymptomatic elephants with an active ...

2008
Grant M. Harris Gareth J. Russell Rudi I. van Aarde Stuart L. Pimm

Managers in southern Africa are concerned that continually increasing elephant populations will degrade ecosystems. Culling, translocation and birth control are flawed solutions. An alternative is providing elephants more space but this hinges on identifying landscape preferences. We examined two diverse ecosystems and uncovered similarities in elephant habitat use, expressing these as ‘rules’....

Journal: :The Journal of heredity 2011
Yasuko Ishida Yirmed Demeke Peter J van Coeverden de Groot Nicholas J Georgiadis Keith E A Leggett Virginia E Fox Alfred L Roca

A more complete description of African elephant phylogeography would require a method that distinguishes forest and savanna elephants using DNA from low-quality samples. Although mitochondrial DNA is often the marker of choice for species identification, the unusual cytonuclear patterns in African elephants make nuclear markers more reliable. We therefore designed and utilized genetic markers f...

2016
Kari A. Morfeld Cheryl L. Meehan Jennifer N. Hogan Janine L. Brown

Obesity has a negative effect on health and welfare of many species, and has been speculated to be a problem for zoo elephants. To address this concern, we assessed the body condition of 240 elephants housed in North American zoos based on a set of standardized photographs using a 5-point Body Condition Score index (1 = thinnest; 5 = fattest). A multi-variable regression analysis was then used ...

Journal: :Epidemiology and infection 2013
B L Ong Y F Ngeow M F A Abdul Razak Y Yakubu Z Zakaria A R Mutalib L Hassan H F Ng K Verasahib

A cross-sectional study was conducted from 10 January to 9 April 2012, to determine the seroprevalence of tuberculosis (TB) of all captive Asian elephants and their handlers in six locations in Peninsular Malaysia. In addition, trunk-wash samples were examined for tubercle bacillus by culture and polymerase chain reaction (PCR). For 63 elephants and 149 elephant handlers, TB seroprevalence was ...

2017
Angela Fuery Ann M. Leen Rongsheng Peng Matthew C. Wong Hao Liu Paul D. Ling

Elephant Endotheliotropic Herpesvirus (EEHV) can cause lethal hemorrhagic disease in juvenile Asian elephants, an endangered species. One hypothesis to explain this vulnerability of some juvenile elephants is that they fail to mount an effective T cell response to the virus. To our knowledge, there have been no studies of Asian elephant T cell responses to EEHV. To address this deficiency, we v...

2017
JOSEPHINE SMIT ROCÍO A. POZO JEREMY J. CUSACK KATARZYNA NOWAK TREVOR JONES

Crop losses to foraging elephants are one of the primary obstacles to the coexistence of elephants and people. Understanding whether some individuals in a population are more likely to forage on crops, and the temporal patterns of elephant visits to farms, is key to mitigating the negative impacts of elephants on farmers’ livelihoods. We used camera traps to study the crop foraging behaviour of...

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