12.07.2015 Views

in Sri Lanka - Ministry of Environment

in Sri Lanka - Ministry of Environment

in Sri Lanka - Ministry of Environment

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

The Taxonomy and Conservation Status <strong>of</strong> Birds <strong>in</strong> <strong>Sri</strong> <strong>Lanka</strong>Devaka K Weerakoon 1 and Kithsiri Gunawardena 21Department <strong>of</strong> Zoology, University <strong>of</strong> Colombo, Colombo 323E, Kynsey Road, Colombo 8IntroductionThe early formal <strong>Sri</strong> <strong>Lanka</strong>n literature does not carry detailed descriptions on birds other thancasual references. S<strong>in</strong>ce the 14 th century birds have been extensively featured <strong>in</strong> S<strong>in</strong>halesepoetry Sandesha Kavya. Detailed documentation <strong>of</strong> the <strong>Sri</strong> <strong>Lanka</strong>n avifauna began <strong>in</strong> the 16 thcentury with the arrival <strong>of</strong> Europeans such as Ribeiro, Baldaeus, Queyroz and Knox. However,the first formal account <strong>of</strong> a <strong>Sri</strong> <strong>Lanka</strong>n species, <strong>Sri</strong> <strong>Lanka</strong> Lorikeet, was given by George Edwards(1743) <strong>in</strong> his book Natural History <strong>of</strong> Uncommon Birds. The systematic study <strong>of</strong> the avifauna <strong>of</strong><strong>Sri</strong> <strong>Lanka</strong> began <strong>in</strong> the mid 18 th century with major contributions from naturalists such as Loten,Jo<strong>in</strong>ville, Templeton, Layard, Kelaart and Holdsworth. Then came the monumental four volumepublication by Capt. V<strong>in</strong>cent Legge, A History <strong>of</strong> the Birds <strong>of</strong> Ceylon, which rema<strong>in</strong>s the mostcomprehensive account on the birds <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong> to date. S<strong>in</strong>ce then the knowledge on <strong>Sri</strong><strong>Lanka</strong>n avifauna has been updated periodically by many ornithologists such as Murray, Wait,Baker, Ripley, Whistler, Henry, Phillips, Kotagama, Rasmussen, Anderton and Warakagoda<strong>Sri</strong> <strong>Lanka</strong> supports a rich avifauna that stands at 453 species at present. This <strong>in</strong>clude 240species <strong>of</strong> birds that are known to breed <strong>in</strong> <strong>Sri</strong> <strong>Lanka</strong>, <strong>of</strong> which 33 are accepted by someornithologists as endemic species while some ornithologists consider only 27 species asendemic and the rema<strong>in</strong><strong>in</strong>g 6 are considered as proposed endemics. Further, 21 species thatare listed as breed<strong>in</strong>g residents, also have migrant populations which also <strong>in</strong>clude migrants <strong>of</strong>different races <strong>of</strong> the species that occur <strong>in</strong> the country. The rema<strong>in</strong><strong>in</strong>g 213 species are migrants<strong>of</strong> which 72 species are encountered rarely and therefore considered as vagrants. It should benoted that only 240 resident birds have been evaluated <strong>in</strong> this Red List.TaxonomyThe taxonomy <strong>of</strong> Asian birds has been subject to many changes over the last two decades,consequent to <strong>in</strong>creased research efforts and new methodologies which were adopted <strong>in</strong> aviantaxonomy. This resulted <strong>in</strong> several changes <strong>in</strong> the scientific nomenclature <strong>of</strong> Birds <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong>.Kotagama et. al. (2006) recognized sixty four families represent<strong>in</strong>g the bird species present<strong>in</strong> <strong>Sri</strong> <strong>Lanka</strong> based on Sibley & Monroe (1990). S<strong>in</strong>ce then, twenty new families have beenadded, due to elevation <strong>of</strong> subfamilies or tribes to full family status (Tribes Haematopod<strong>in</strong>i,Recurvirostr<strong>in</strong>i, Stercorari<strong>in</strong>i, Artam<strong>in</strong>i, Rhipidur<strong>in</strong>i, Dicrur<strong>in</strong>i, Monarch<strong>in</strong>i, Dicae<strong>in</strong>i wereupgraded to family level while tribe Oriol<strong>in</strong>i has been split and upgraded to two families,Oriolidae and Campephagidae which also <strong>in</strong>clude members <strong>of</strong> the tribe Vang<strong>in</strong>i. Further,subfamilies Dromad<strong>in</strong>ae, Hydrobat<strong>in</strong>ae, Aegith<strong>in</strong><strong>in</strong>ae, Turd<strong>in</strong>ae, Passer<strong>in</strong>ae, Motacill<strong>in</strong>ae,Ploce<strong>in</strong>ae, Estrild<strong>in</strong>ae and Emberiz<strong>in</strong>ae are upgraded to family level. Subfamily Garrulac<strong>in</strong>aeand tribe Timali<strong>in</strong>i are placed <strong>in</strong> the family Timaliidae). Members <strong>of</strong> five families have been“lumped” with other exist<strong>in</strong>g families (Dendrocygnidae, Megalaimidae, Centropodidae andBatrachostomidae now placed <strong>in</strong> Anatidae, Ramphastidae, Cuculidae and Podargidae114

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!