Nocturnal behavior of orphaned Asian elephant (Elephas maximus ) calves in Sri Lanka

Zoo Biology ◽  
2017 ◽  
Vol 36 (4) ◽  
pp. 261-272 ◽  
Author(s):  
Helena Stokes ◽  
Vijitha Perera ◽  
Nilmini Jayasena ◽  
Ayona Silva-Fletcher
Keyword(s):  
Sri Lanka ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Nocturnal Behavior

Morphology and Molecular Characterization of Parabronema smithii (Cobbold, 1882) (Nematoda: Habronematidae) from Wild Asian Elephant (Elephas maximus maximus) of Sri Lanka

2020 ◽  
Vol 65 (2) ◽  
pp. 504-517
Author(s):  
Lasanthika D. Thewarage ◽  
Duminda S. B. Dissanayake ◽  
Udari S. Perera ◽  
Anura T. Bandara ◽  
B. V. P. Perera ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Molecular Characterization ◽  
Asian Elephant ◽  
Elephas Maximus

Morphology and surface topography of the schistosome Bivitellobilharzia nairi from the Asian elephant (Elephas maximus maximus) in Sri Lanka

2012 ◽  
Vol 87 (3) ◽  
pp. 348-355 ◽  
Author(s):  
R.P.V.J. Rajapakse ◽  
M. Iwagami ◽  
S. Wickramasinghe ◽  
S.M. Walker ◽  
T. Agatsuma
Keyword(s):  
Sri Lanka ◽  
Liver Parenchyma ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Morphological Description ◽  
Post Mortem ◽  
Sem Study ◽  
Indian Elephant ◽  
Scanning Electron

AbstractBivitellobilharzia nairi was first recorded from an Indian elephant (Elephas maximus) in Berlin. Infections with this parasite have become increasingly important in E. maximus maximus populations in Sri Lanka. The present work is the first morphological description of this schistosome from Sri Lanka. A number of adult worms were recovered from a dead Asian elephant near the elephant orphanage, Pinnawala, in Sri Lanka. The observed clinical features of the infected elephant included emaciation, subventral oedema and anaemia. Post-mortem results indicated that the liver was enlarged and adult schistosomes were found in the blood vessels of the liver parenchyma. The total number of worms recovered from a portion of the liver was 129,870, which is an average of 22 worms per 100 g of liver. The present study uses both light microscopic and scanning electron microscope (SEM) techniques for the morphological and topographical characterization of this parasite and to permit comparison with other species of schistosomes. Morphologically, these worms correspond very well to the description of B. nairi by Dutt & Srivastava (1955). Moreover, it is clear that B. nairi is a distinctive species easily differentiated from other schistosomes. The SEM study of the tegument of male worms shows that the surface of B. nairi is smoother than in other schistosomes.

Sequence variation at two mitochondrial genes in the Asian elephant (Elephas maximus) population of Sri Lanka

2002 ◽  
Vol 67 (4) ◽  
pp. 193-205 ◽  
Author(s):  
H. Vandebona ◽  
N.C.W. Goonesekere ◽  
R. Tiedemann ◽  
W.D. Ratnasooriya ◽  
M.B. Gunasekera
Keyword(s):  
Sri Lanka ◽  
Sequence Variation ◽  
Mitochondrial Genes ◽  
Asian Elephant ◽  
Elephas Maximus

Aspects of the ecology of the Asian elephant Elephas maximus L. in the Ruhuna National Park, Sri Lanka

1984 ◽  
Vol 29 (1) ◽  
pp. 47-61 ◽  
Author(s):  
Charles Santiapillai ◽  
M.R. Chambers ◽  
N. Ishwaran
Keyword(s):  
Sri Lanka ◽  
National Park ◽  
Asian Elephant ◽  
Elephas Maximus

scholarly journals Cecocolic Intussusception in an Asian Elephant (Elephas maximus) in Sri Lanka Associated with Chronic Hepato-Intestinal Schistosomiasis: A Case Report

2015 ◽  
Vol 3 (4) ◽  
pp. 744-746 ◽  
Author(s):  
A.C. Karawita ◽  
R.C. Rajapakse ◽  
P.G.I.D. Amarasiri ◽  
R.M.T.M. Ramanayake ◽  
W.R. Jayaweera ◽  
...  
Keyword(s):  
Case Report ◽  
Sri Lanka ◽  
Histopathological Examination ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Post Mortem ◽  
Granulomatous Colitis ◽  
First Report ◽  
Intestinal Schistosomiasis

A 25 year old female captive Asian elephant weighing approximately 3000kgs died and was subjected to a complete necropsy within 5 hours post mortem. Grossly, the elephant had sub-cutaneous edema, cecocolic intussusception and ascites. Histopathological examination revealed multifocal, granulomatous, portal phlebitis in the liver, multifocal, granulomatous, peri-portal hepatitis with marked portal and perisinusoidal fibrosis, and multifocal granulomatous colitis with intralesional Schistosoma eggs. To our knowledge, this is the first report of cecocolic intussusception in an Asian elephant associated with Schistosoma infection. Int J Appl Sci Biotechnol, Vol 3(4): 744-746

Reproductive performance of the largest captive Asian elephant ( Elephas maximus ) population in Sri Lanka

2016 ◽  
Vol 174 ◽  
pp. 93-99 ◽  
Author(s):  
P.G.A. Pushpakumara ◽  
R.C. Rajapakse ◽  
B.M.A.O. Perera ◽  
J.L. Brown
Keyword(s):  
Sri Lanka ◽  
Reproductive Performance ◽  
Asian Elephant ◽  
Elephas Maximus

scholarly journals DNA FINGERPRINTS OF THE ASIAN ELEPHANT IN SRI LANKA, ELEPHAS MAXIMUS MAXIMUS, USING MULTILOCUS PROBE 33.15 (JEFFREYS)

2004 ◽  
Vol 32 (3-4) ◽  
pp. 83
Author(s):  
Himesha Vandebona ◽  
Maya B. Gunasekera ◽  
W.D. Ratnasooriya ◽  
Nalin C.W. Goonesekere ◽  
D.S. Kodikara ◽  
...  
Keyword(s):  
Sri Lanka ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Dna Fingerprints

scholarly journals Social structure and demography of a remnant Asian elephant Elephas maximus population and the implications for survival

Oryx ◽  
2020 ◽  
pp. 1-6
Author(s):  
Lauren J. Hale ◽  
Kun Shi ◽  
Tania C. Gilbert ◽  
Kelvin S.-H. Peh ◽  
Philip Riordan
Keyword(s):  
Social Structure ◽  
Population Size ◽  
Total Population ◽  
Camera Traps ◽  
Asian Elephant ◽  
Elephas Maximus ◽  
Effective Density ◽  
Anthropogenic Pressures ◽  
Sex Ratio Bias ◽  
Elephant Population

Abstract The Asian elephant Elephas maximus is at risk of extinction as a result of anthropogenic pressures, and remaining populations are often small and fragmented remnants, occupying a fraction of the species' former range. Once widely distributed across China, only a maximum of 245 elephants are estimated to survive across seven small populations. We assessed the Asian elephant population in Nangunhe National Nature Reserve in Lincang Prefecture, China, using camera traps during May–July 2017, to estimate the population size and structure of this genetically important population. Although detection probability was low (0.31), we estimated a total population size of c. 20 individuals, and an effective density of 0.39 elephants per km2. Social structure indicated a strong sex ratio bias towards females, with only one adult male detected within the population. Most of the elephants associated as one herd but three adult females remained separate from the herd throughout the trapping period. These results highlight the fragility of remnant elephant populations such as Nangunhe and we suggest options such as a managed metapopulation approach for their continued survival in China and more widely.

scholarly journals Acute and Fatal Herpesvirus Infection in a Young Asian Elephant (Elephas maximus)

1990 ◽  
Vol 27 (2) ◽  
pp. 131-133 ◽  
Author(s):  
P. Ossent ◽  
F. Guscetti ◽  
A. E. Metzler ◽  
E. M. Lang ◽  
A. Rübel ◽  
...  
Keyword(s):  
Asian Elephant ◽  
Elephas Maximus ◽  
Herpesvirus Infection
Sign in / Sign up

Export Citation Format

Share Document