Read e-book online Arthropods of Mediterranean-Type Ecosystems PDF

By George P. Stamou

ISBN-10: 3642797520

ISBN-13: 9783642797521

ISBN-10: 3642797547

ISBN-13: 9783642797545

G.P. Stamou describes the adaptive suggestions that permit arthropods to deal with the severity of Mediterranean environments. After an creation to the constitution and serve as of Mediterranean-type ecosystems, ecophysiological diversifications to water rigidity and ranging temperature are thought of. extra, task styles and existence cycle strategies are mentioned when it comes to the peculiarity of Mediterranean environments. Phenological styles and inhabitants dynamics in addition to group buildings also are offered. the amount ends with a synthesis of lifestyles heritage tactics.

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1988) was subject to intensive grazing. Generally, overgrazing results in a number of microsites maintaining favourable microc1imatic conditions as well as in the aggregated distribution of resources. It appears that different taxa, sheltering in favourable micro sites, such as Lucanidae, Histeridae, Scarabeidae and scorpions, can remain active under extreme macroc1imatic conditions. For example, this is the case with the Mediterranean millipede Archispirostreptus tumuliporus judaicus. Crawford et al.

Feeding activity therefore comes to a halt in winter when the mean monthly temperature is below 7°C, and it drops drastically in summer when the ambient temperature is above 2S DC. Due to low QIO values, feeding activity also changes slightly within the range of 7-25 0c, Seasonal changes in the feeding activity of most terrestrial arthropods from mesic Mediterranean regions conform with the above scheme (Bertrand et al. 1987; David 1987; Iatrou and Stamou 1989b). For example, except when overwintering and moulting, the diplopod Glomeris balcanica is active in Hortiatis throughout the year (Fig.

Concern with respiratory activity stems from the fact that respiration is the most important path of energy loss. Respirometry can therefore provide a measure of the rate at which animals use their resources to cope with environmental constraints (Peters 1983). g. g. g. Testerink 1983). Thus, merging the various aspects of an arthropod's respiratory activity makes it possible to generate important ecological insights into the animal's adaptive strategies. The complex conditions of temperature and humidity permit trade-offs in the energy allocation of Mediterranean arthropods and hence become the major determinants of their life history tactics.

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Arthropods of Mediterranean-Type Ecosystems by George P. Stamou

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