The biology of temporary waters by D. Dudley Williams

By D. Dudley Williams

This e-book brings jointly the hugely scattered and various worldwide literature on natural and utilized facets of transitority waters and their biotas. It examines their roles in either usual and human environments, and seeks universal evolutionary topics. It wil be of specific curiosity to aquatic ecologists, invertebrate and vertebrate biologists, environmental biologists, wetland conservationists, these charged with controlling water-associated illnesses, educators, and usual historians.

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Data from Magnusson and Williams, unpublished). INFLUENTIAL ENVIRONMENTAL FACTORS lakes (Eriksen 1966). 5 shows the broad seasonal temperature profile of an intermittent, temperate pond, together with the diel variation measured at three points in its hydroperiod. While mean temperature from early April to late June ranged from around 4 to 19 C, the diel fluctuations were 2–20 C (early April), 10–28 C (midMay), and 17–24 C (mid-June). The biological consequences of such massive, short-term temperature changes are poorly understood.

1999). * * C C C Copepoda Calanoida Diaptomus Leptodiaptomus Harpacticoida Canthocamptus Cyclopoida * Acanthocyclops Cyclops Siphonostomatoida Argulus but also higher oxygen, was dominated by Orthocladiinae. Suter et al. (1994) found that chironomids responded to flooding and drying events in the floodplain wetlands of the Lower Murray River in South Australia. Notably, species of Chironomus responded rapidly to flooding, and species of Procladius (Tanypodinae) became more abundant as drying progressed.

Micropsectra sp. — — Antocha sp. Bezzia/Probezzia grp Simulium venustum — Tubifera sp. Natarsia sp. — — Diamesa sp. B — — Cricotopus sp. A — — — Micropsectra sp. Polypedilum sp. Paratendipes sp. — Bezzia/Probezzia grp — — — — — — — — — — — Pseudosmittia sp. — — — — — — — Unident — 16 15 11 10 6 8 invertebrates increased with increasing hydroperiod, whereas overall invertebrate abundance and richness decreased (Corti et al. 1997). Boix et al. (2001) similarly found a positive relationship between hydroperiod duration (and also flooded surface area) and species richness in Espolla Pond, Spain.

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