Birds of Sri Lanka

Birds of Sri Lanka

Author: Deepal Warakagoda

Publisher: Bloomsbury Publishing

Published: 2022-03-17

Total Pages: 438

ISBN-13: 1472966473

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The definitive photographic guide to the amazing avifauna of Sri Lanka. The island of Sri Lanka is one of Southern Asia's most popular birding destinations, boasting a remarkably high number of endemic species. The perfect companion for any wildlife-friendly visitor, Birds of Sri Lanka provides photographic coverage of more than 320 species that regularly occur in the region. Concise text for each species includes information on identification, songs and calls, behaviour, distribution and habitat, with each photo having been carefully selected to guide identification. A guide to the best birdwatching sites in Sri Lanka is also included. Portable yet authoritative, this is the perfect guide for travellers and birdwatchers visiting this spectacular and bird-rich destination.


Lagoons of Sri Lanka

Lagoons of Sri Lanka

Author: Silva, E. I. L.

Publisher: IWMI

Published: 2013-03-01

Total Pages: 126

ISBN-13: 9290907789

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Sri Lanka, an island in the Indian Ocean, has lagoons along 1,338 km of its coastline. They experience low-energy oceanic waves and semidiurnal microtidal currents. The Sri Lankan coastal lagoons are not numerous but they are diverse in size, shape, configuration, ecohydrology, and ecosystem values and services. The heterogeneous nature, in general, and specific complexities, to a certain extent, exhibited by coastal lagoons in Sri Lanka are fundamentally determined by coastal and adjoining hinterland geomorphology, tidal fluxes and fluvial inputs, monsoonal-driven climate and weather, morphoedaphic attributes, and cohesive interactions with human interventions.Most coastal lagoons in Sri Lanka are an outcome of mid-Holocene marine transgression and subsequent barrier formation and spit development enclosing the water body between the land and the sea. This process has varied from one coastal stretch to another due to wave-derived littoral drift, sediment transport by tidal fluxes, fluvial inputs and wave action or, in other words, sea-level history, shore-face dynamics and tidal range as the three major factors that control the origin and maintenance of the sandy barrier, the most important features for the formation and evolution of coastal lagoons with their landward water mass. In certain stretches of Sri Lanka’s coastline, formation of the barrier spit was very active due to shore-face dynamics that resulted in chains of shore parallel, elongated lagoons. They are among the most productive in terms of ecosystem yield and show some similarities to large tropical lagoons with respect to sea entrance, zonation, biodiversity and ecosystem services. However, some of them become seasonally hypersaline due to lack of freshwater input and high evaporation. Functions and processes of some of these water bodies are fairly known. There are a fair number of small back-barrier lagoons of different shapes and sizes whose origin goes back to sea-level history. They are located on low-energy coasts with prominent beach ridges and restricted hinterland geomorphology. Mixing processes of these landward indentations are hindered by elevated sand dunes, and their salinity increases due to poor freshwater input and high evaporation leading to seasonally hypersaline conditions. These sedimented lagoons, primarily confined to the southeastern coast of the island, are biologically the least productive, with limited ecosystem values and services. Another group of moderately elongated semicircular, slightly large lagoons in the same coast, formed exclusively by submergence due to mid-Holocene sea-level rises, do not receive sufficient freshwater input leading to seasonally hypersaline conditions. They are also biologically unproductive but some are ecologically important since they provide habitats conducive to migratory birds. In contrast, some lagoons on the southern coast receive sufficient freshwater via streams draining the wet zone, maintain more estuarine salinities, exhibit rich biodiversity and serve as functional resource units. Lagoons formed by mid-Holocene submergence and recession of water level with simultaneous chain barrier formation on the high energy southwest coast, which includes cliffs, small bays and headlands, show peculiar configurations and link channel characteristics. Some of these irregular water bodies have clusters of small isles and luxuriant mangrove swamps with high biodiversity but not very rich in catadromous finfish and shellfish species due to the restricted nature of the entrance channel and nondistinct salinity gradients. The barrier-built, seasonally hypersaline lagoon complex in the Jaffna Peninsula, the largest lagoon system in the country with multiple perennial entrances show extremely narrow salinity ranges towards the upper limit of salinity. The main lagoon is elongated and the shore parallel to eastward and southward extensions is connected by narrow channels. The other lagoon in the Jaffna Peninsula is elongated, shore parallel and ribbon-shaped and receives tidal water throughout the year but freshwater is received only from precipitation and surface runoff. Even though the lagoons in the peninsula are extremely rich in ecosystem heterogeneity their hydrology and hydrodynamics have been severely disturbed by infrastructural development for transportation and by attempts to create a freshwater river for Jaffna. There are a few virgin lagoons of moderate size also on the northern coast, south of the Jaffna Peninsula on both the east and west sides. They look very typical tropical lagoons rich in biodiversity and biological production but their structure, functions and values are virtually unknown in scientific or socioeconomic terms. The lagoons located on the east coast are not numerous but relatively large in extent. They are also an outcome not only of mid-Holocene sea-level rises but of submerged multi-delta valleys or abandoned paleo estuaries. When inundated, the multi-delta valley configuration became elongated and is shore parallel with a smooth seaward shoreline; both shorelines become irregular when coastal waves are weak, and internal waves are created by the action of local winds. Configuration of a lagoon formed by inundation of an abandoned river valley is irregular with a long entrance channel extended landward. These lagoons are highly productive with a variety of associated ecosystems, large open water areas and wide perennial sea entrances. When the lagoon is too much elongated, zonation is prominent due to fewer entrance effects. Lagoons form a particular type of natural capital which generates use values (fish, shrimp, fuelwood, salt, fodder, ecotourism, anchorage, recreation, etc.) and nonuse values (habitat preservation, biodiversity, ecosystem linkages, etc.) contributing positively towards improving the human well-being. Of many values of lagoons in Sri Lanka, only the extractive values are generally utilized at present, by way of fish and shrimp catches, salt production and use of mangrove for various purposes. Besides, coastal lagoons generate a range of nonextractive use values and nonuse values, which could add towards the total economic value. Misuse has taken place at several instances when “use” adversely affects the status of the resources or the health of the ecosystem due to vulnerability and poverty, population pressure, urbanization, development activities and multi-stakeholder issues. The status of lagoon resources shows that the resources in the majority of Sri Lankan lagoons still remain satisfactory, somewhat good or very good. Nevertheless, concerns for management of lagoons in Sri Lanka exist only where “use values” (extractive values, such as fish and shrimp) exist. There is no evidence of resources management in lagoons for inspirational, scholarly values or tacit knowledge of the same. Management for use values exhibits several stages from zero management to comanagement via community management and state intervention. Most of Sri Lanka’s lagoons have the potential for generating high extractive and nonextractive use values which could improve the human well-being, while maintaining resources sustainability. Unfortunately, these potentials have not been understood or “seen” yet by the relevant authorities, although a few instances of exploring this potential were noticed.


A Photographic Field Guide to the Birds of India, Pakistan, Nepal, Bhutan, Sri Lanka, and Bangladesh

A Photographic Field Guide to the Birds of India, Pakistan, Nepal, Bhutan, Sri Lanka, and Bangladesh

Author: Bikram Grewal

Publisher: Princeton University Press

Published: 2017-04-25

Total Pages: 792

ISBN-13: 0691176493

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This is the only comprehensive photographic field guide to the birds of the entire Indian subcontinent. Every distinct species and subspecies—some 1,375 in all—is covered with photographs, text, and maps. The guide features more than 4,000 stunning photographs, many never before published, which have been carefully selected to illustrate key identification features of each species. The up-to-date facing-page text includes concise descriptions of plumage, voice, range, habitat, and recent taxonomic changes. Each species has a detailed map reflecting the latest distribution information and containing notes on status and population density. The guide also features an introduction that provides an overview of birdlife and a brief history of ornithology in India and its neighbors. The result is an encyclopedic photographic guide that is essential for everyone birding anywhere in the subcontinent. Covers all 1,375 subcontinental bird species Features more than 4,000 stunning photographs to aid quick field identification Includes up-to-date facing-page text and range maps Contains concise descriptions of plumage, voice, habitat, and much more


Catalogue

Catalogue

Author: Calcutta (India). Imperial library

Publisher:

Published: 1908

Total Pages: 568

ISBN-13:

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A Guide to the Birds of Sri Lanka

A Guide to the Birds of Sri Lanka

Author: George Morrison Henry

Publisher: Oxford University Press, USA

Published: 1998

Total Pages: 576

ISBN-13:

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This text - the only newly comprehensive source of direct information on the avifauna of Sri Lanka for over 40 years - includes 44 newly recorded species, updated nomenclature and systematic index and additional distributional details.


CRC World Dictionary of Palms

CRC World Dictionary of Palms

Author: Umberto Quattrocchi

Publisher: CRC Press

Published: 2017-08-03

Total Pages: 3591

ISBN-13: 1351651498

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From the Foreword Umberto Quattrocchi has brought us some amazing and useful works through the various dictionaries that he has compiled. This time it is for two very important plant families the palms and the cycads that are synthesized here in these two volumes. Each entry is fascinating not just for the botany and full nomenclature of the plant species but for all the associated uses, folklore and interactions with other organisms. ...These entries are fascinating glimpses of natural history. ... Botanists, conservationists, ethnobotanists, anthropologists, geographers, bird watchers, naturalists, historians and those of many other disciplines will find these volumes a most valuable and useful resource. It is the sort of book that will be in frequent use in my library. ----- Professor Sir Ghillean Prance FRS, VMH, Former Director, Royal Botanic Gardens, Kew Following the same format as Umberto Quattrocchi’s highly praised and well-used previous works, The CRC World Dictionary of Palms: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology brings together the vast and scattered literature on palms and cycads to provide better access to information on these economically important plants. Each genus and species has a detailed morphological description and includes a list of synonyms and vernacular names in many languages. Bibliographies accompany each entry which are comprehensive, up-to-date and multi-lingual. The detailed information for every entry on habitats, economic uses, historical and biographical data, botanical exploration, and linguistics will be useful for any library involved with botany, herbal medicine, pharmacognosy, medicinal and natural product chemistry, ecology, ethnobotany, systematics, general plant science, agriculture or horticulture. Umberto Quattrocchi is the author of the bestselling CRC World Dictionary of Plant Names, winner of the prestigious Hanbury Botanical Garden Award. His most recent multi-volume work, CRC World Dictionary of Medicinal and Poisonous Plants, received strong praise as being "... an unparalleled starting place—a tool of first resort for any thoughtful researcher. Quattrocchi and CRC have delivered a dictionary like no other, a learned finger pointing in the right direction." —John de la Parra, Northeastern University, Boston, Massachusetts, USA, from Economic Botany, Vol. 68, 2014