Author: Mustafa Ünal (Biologist)
Publisher:
ISBN: 9781776703876
Category : Tettigoniidae
Languages : en
Pages :

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Book Description

Author: James Abram Garfield Rehn
Publisher:
ISBN:
Category : Orthoptera
Languages : en
Pages : 41

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Book Description

Author: D. C. F. Rentz
Publisher: Brill Archive
ISBN: 9780643038394
Category : Science
Languages : en
Pages : 408

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Book Description
This volume deals with the shield-backed katydids, the Tettigoniinae, covering 17 genera and 72 species. The use of tribes has been disregarded until generic classification is made on a worldwide basis. Introductory chapters provide a wealth of new information about the zoogeography of the subfamily, and on the habitats and biologies of the insects. Dr Rentz has also used oscillograms of the katydids' calling songs to effectively distinguish similar species. Other sections deal with the terminology, collecting and preservation of specimens.

Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1188

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Book Description

Author: Battal Ciplak
Publisher:
ISBN: 9781869773779
Category : Crickets
Languages : en
Pages : 75

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Book Description

Author: Winston J. Bailey
Publisher: Springer
ISBN: 9783662025949
Category : Science
Languages : en
Pages : 395

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Book Description
by fireflies on calling heterospeciflcs (Lloyd 1984) or the location of calling crickets by tachiniid flies (Cade 197 5). Sexual selection theory would predict that if there were any risks involved in mating then the sex offering the highest investment should take fewer of them. Given these factors and an inherent risk of detection by predators of calling individuals, males are more likely to signal than females (Thornhi111979). Further, if the quantity (length and/ or loudness) of the acoustic signal were correlated with the risks of exposure, we may predict that insects calling from exposed perches, or in areas of high predation, would use calls with a low duty cycle (the calls are short and widely spaced in time). Belwood provides an extensive account of defensive strategies used . by tettigoniids in the tropical rainforests of Central and South America. Her discussion includes both cryptic strategies in avoiding day time predators and also signalling strategies avoiding those operating at night As the signal shortens so selection is transferred from the caller to the searching female, and male location may become more risky than calling itself. At this juncture it may be advantageous for the female to call in reply to the male. This role reversal in signalling often results in duetting where the male calls and the female replies within a very narrow time window. The male now searches for the female, taking on both risks of calling and moving.

Author: Johann Greilhuber
Publisher: Springer Science & Business Media
ISBN: 3709111609
Category : Science
Languages : en
Pages : 360

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Book Description
This second of two volumes on Plant Genome Diversity provides, in 20 chapters, insights into the structural evolution of plant genomes with all its variations. Starting with an outline of plant phylogeny and its reconstruction, the second part of the volume describes the architecture and dynamics of the plant cell nucleus, the third examines the evolution and diversity of the karyotype in various lineages, including angiosperms, gymnosperms and monilophytes. The fourth part presents the mechanisms of polyploidization and its biological consequences and significance for land plant evolution. The fifth part deals with genome size evolution and its biological significance. Together with Volume I, this comprehensive book on the plant genome is intended for students and professionals in all fields of plant science, offering as it does a convenient entry into a burgeoning literature in a fast-moving field.

Author: Petr Kočárek
Publisher:
ISBN:
Category : Cockroaches
Languages : cs
Pages : 360

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Book Description

Author: Adrian Thomas Sumner
Publisher: Springer
ISBN:
Category : Juvenile Nonfiction
Languages : en
Pages : 456

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Book Description

Author: David R. Ragge
Publisher:
ISBN: 9780946589500
Category : Crickets
Languages : en
Pages : 0

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Book Description
Grasshoppers and crickets are used widely in ecological, cytogenetic and bio-acoustic research, and have recently become important subjects in evolutionary biological studies. They are also increasingly used in the field of conservation as indicators of undisturbed habitat.