David rentz (6 Ergebnisse)

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In good all round condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,750grams, ISBN:9781486305063.

398 pp.,colour photographs, maps, other illustrations. Cricket song is a sound of the Australian bush. Even in cities, the rasping calls signify Australiaâs remarkable cricket biodiversity. Crickets are notable for a variety of reasons. When their population booms, some of these species become agricultural pests and destroy crop pastures. Some introduced species are of biosecurity concern. Other crickets are important food sources for native birds, reptiles and mammals, as well as domestic pets. Soon you might even put them in your cake or stir-fry, as there is a rapidly growing industry for cricket products for human consumption. Featuring keys, distribution maps, illustrations and detailed colour photographs from CSIROâs Australian National Insect Collection, A Guide to Crickets of Australia allows readers to reliably identify all 92 described genera and many species from the Grylloidea (true crickets) and Gryllotalpoidea (mole crickets and ant crickets) superfamilies. Not included are the Raspy Crickets (Gryllacrididae), King Crickets (Anostostomatidae) or the so-called âPygmy Mole Cricketsâ (Caelifera), which despite their common names are not related to true crickets. Natural history enthusiasts and professionals will find this an essential guide.…

Paperback. Zustand: Very Good. Cover and edges may have some wear.

Zustand: New. In English.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - 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.…

Paperback. Zustand: Brand New. reprint edition. 416 pages. 10.00x7.01x1.10 inches. In Stock.