Journal of Science

Permanent URI for this communityhttp://repository.kln.ac.lk/handle/123456789/13897

Browse

Author: search.filters.author.Ratnasooriya, W.D.Author: search.filters.author.Digana, P.M.C.B.

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Haematological parameters of three species of wild caught microchiropteran bats, Miniopterus schreibersii, Taphozous melanopogon and Hipposideros lankadiva in Sri Lanka
    (Journal of Science of the University of Kelaniya Sri Lanka, 2005) Ratnasooriya, W.D.; Udagama-Randeniya, P.V.; Yapa, W.B.; Digana, P.M.C.B.; Dharmasiri, M.G.
    This study,for the first time in South Asia, examines haematological parameters of thre species of wild caught Sri Lankan microchiropteran bats, belonging to three different families having different global zoogeographical distributions; Miniopterus schreibersii (Vespertilionidae: n=12), Taphozous melanopogon (Emballonuridae; n=19) and Hipposideros lankadiva (Hipposiderosidae; n=15). Blood samples were obtained from the median vein and the total white blood cell (WBC) count, red blood cell (RBC) count, packed cell volume (PCV), haemoglobin content(Hb), mean corpuscular volume (MCV) and mean corpuscular haemoglobin content (MCHC) were determined using standard haematological techniques. lnterspecies differences existed in some of the parameters monitored, i.e. PCV, MCV, WBC and RBC counts. % of neutrophils and lymphocytes. On the other hand, a gender discrepancy was recorded for T.melanopgon with respect to neutrophils and lymphocytes, and for M. schreibersii with respect to the total WBC count. The highest WBC count and the lowest PCV and MCV were found in M. schreibersii. T.melanopgon registered the highest percentage of lymphocytes and the lowest percentage of neutrophils, while H. lankadiva possessed the highest MCV. Haematological values were recorded also for a single lactating T.melanopogon.
  • No Thumbnail Available
    Item
    Roost Selection of the Short-Nosed Fruit Bat, Cynopterus spp. in Sri Lanka
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Digana, P.M.C.B.; Yapa, W.B.; Randeniya, R.V.; Ratnasooriya, W.D.
    A total of 160 day roosts of short nosed fruit bats (Cynopterus sp.) were examined during a 3 year study in Sri Lanka. Day roosts were found in five species of trees; Talipot palm (Corypha umbraculiferay), Coconut (Cocos nucifera), Banana(Musa sp.), Habarala (Alocasia sp.) and Kitul (Caryota urens). A11 the day roostsfound in this study can be categorized in to three groups, viz, tents, foliage roosts and seed string roosts. Majority (92%) of day roosts were in the form of tents, all of which were found in the talipot palm. Foliage roosts ( 7%) were found in three species of plants (c. nucifera, Musa sp., Alocasia sp.) while two (1%) of the roosts were found in Kitul palm, inside the seed strings. Our observations indicate that the tents are constructed by male bats and serve as the primary roosts of the Cynopterus.