Ecology of Bats

Ecology of Bats PDF

Author: T.H. Kunz

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 434

ISBN-13: 1461334217

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Among living vertebrates bats and birds are unique in their ability to fly, and it is this common feature that sets them apart ecologically from other groups. Bats are in some ways the noctumal equivalents of birds, having evolved and radiated into a diversity of forms to fill many of the same niches. The evolution of flight and echolocation in bats was undoubtedly a prime mover in the diversification of feeding and roosting habits, reproductive strategies, and social behaviors. Bats have successfully colonized almost every continential region on earth (except Antarctica), as weIl as many oceanic islands and archipelagos. They comprise the second largest order of mammals (next to rodents) in number of species and probably exceed all other such groups in overall abundance. Bats exhibit a dietary diversity (including insects, fruits, leaves, flowers, nectar and pollen, fish. other vertebrates, and blood) unparalleled among other living mammals. Their reproductive pattems range from seasonal monestry to polyestry, and mating systems inelude promiscuity, monogamy, and polygyny. The vast majority of what we know about the ecology of bats is derived from studies of only a few of the approximately 850 species, yet in the past two decades studies on bats have escalated to a level where many important empirical pattems and processes have been identified. This knowledge has strengthened our understanding of ecological relationships and encouraged hypothesis testing rather than perpetuated a catalog of miscellaneous observations.

The Samoan Journals of John Williams, 1830 and 1832

The Samoan Journals of John Williams, 1830 and 1832 PDF

Author: John Williams

Publisher:

Published: 1984

Total Pages: 320

ISBN-13:

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"John Williams was not the first London Missionary Society missionary to Polynesia, but his passion to conquer the whole Pacific region, and resolute belief that he knew better than the Directors in London how this vision might be achieved marked him out as an ambitious and aggressive man. Samoa, the setting of thses journals, was the last island group where Williams' personally introduced the gospel before he was murdered at Eromanga... Of the several journals kept by Williams during his pan-Polynesian travels, the two relating to his visits to Samoa in 1830 and 1832 are the most comprehensive and illuminating. In the course of both journeys Williams also visited Tonga, and provided graphic eye-witness accounts of contemporary Tongan and European life..."--Book jacket.