Download PDF by Dietland Muller-Schwarze: Chemical Ecology of Vertebrates

By Dietland Muller-Schwarze

ISBN-10: 0511242050

ISBN-13: 9780511242052

ISBN-10: 0521363772

ISBN-13: 9780521363778

Focusing completely at the chemically mediated interactions among vertebrates, together with people and different animals and vegetation, this monograph combines details from extensively scattered technical literature in numerous disciplines. it will likely be an essential reference for undergraduates, graduate scholars and researchers attracted to how chemical signs are used for inter- and intra-specific communique in vertebrates.

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First, among related compounds there may exist precursors of active ones, and pathways of pheromone synthesis may be elucidated. This is true for steroids in the human axilla. Nixon et al. (1988) determined the concentration of five steroids extracted from axillary hair of adult men aged 18 to 40 years. The relationships in concentrations between the two ketones 5α-androst-16-en-3-one and 4,16androstadien-3-one suggest that axillary bacteria reduce the former to the latter with the aid of the enzyme 4-ene-5α-reductase.

1988). In the secretions of the anal sacs of dogs (Canis familiaris) and coyotes (C. , 1976). , 1991). 23 24 properties of vertebrate semiochemicals The well-known defense secretion from the skunk’s (Mephitis mephitis) anal glands contains thiols and disulfides (Andersen and Bernstein, 1975) and thioacetates (Wood, 1990). The seven major compounds are (E)-2-butene-1-thiol, 3-methyl-1-butanethiol, S-(E)-2-butenyl thioacetate, S-3-methylbutanyl thioacetate, 2-methylquinoline, 2-quinolinemethanethiol, and S-2-quinolinemethyl thioacetate (Wood, 1990).

Two types of stimulus access (“sniffing”) have been distinguished in fish: “cyclosmates” such as tuna or lobster, which sample a specific sniff volume in sniffs or flicks, and “isosmates,” which sample a steady, ciliary-driven water flow. This latter type of stimulus access is found in slow-moving animals such as catfish, eels, dogfish, or mud snails (Atema, 1988). In turbulent water, patch boundaries will be the sharper the more recently the odor was released. When crossing an odor patch, the animal will learn about the distance to the odor source from the rate of concentration change.

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Chemical Ecology of Vertebrates by Dietland Muller-Schwarze

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