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  • 1
    Electronic Resource
    Electronic Resource
    Field experiments on the relationship between drift and henthic densities of aquatic insects in tropical streams (Ivory Coast). III Trichoptera (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 17 (1987), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY. 1. Based on in situ gutter trials we related the drift of caddis flies to their benthic densities and to various abiotic factors in streams in the Ivory Coast (West Africa). Members of the families Hydropsychidae, Philopotamidae. Hydroptilidae and Leptoceridae were considered in detail.2. The drift of larvae peaked at night in both early and late larval instars.3. Drift of a larval group (a certain instar, species or higher taxon) was more often related to the benthic density of other larval groups than to its own benthic density.4. Self-regulation of an upper benthic density of a larval group by emigration through drift was not statistically evident.5. There was no straightforward relationship between drift and abiotic factors.6. Drift rates differed between taxa as well as between larval instars (size groups) within a taxon. Newly hatched larvae had very high drift rates, whereas the last larval instar usually had the lowest drift rate.7. We related these results to the violently fluctuating discharge of the streams in the study area and the consequent variability of space for lotic insects.8. Drift estimates, made at the same time as a monitoring programme on possible side-effects of insecticides (Onchocerciasis Control Programme), failed to reflect benthic densities except in the night drift of Hydropsychidae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1987.tb01061.x
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  • 2
    Electronic Resource
    Electronic Resource
    Limnologie du fleuve Bandama, Côte d'Ivoire (1983)
    Springer
    Hydrobiologia 100 (1983), S. 113-141 
    Details
    ISSN: 1573-5117
    Keywords: tropical river ; hydrology ; water chemistry ; communities ; phytoplankton ; epiphytes ; insects ; shrimps ; fish ; ecology ; human impact ; pesticides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In recent years, the Bandama river and its catchment area have been subjected to intense limnological research, in the framework of a program of ecological monitoring of aquatic environment, treated with anti-simulium insecticides (W.H.O. project for Onchocerciasis control in West-Africa). The present contribution summarizes the information collected on this tropical river. After a brief description of the basin and its geological setting, climate and hydrology, results of studies on the water chemistry, biology and ecology of its animal and plant communities (plankton, periphyton, insects, decapod crustaceans, fish) are presented. The human impact on the system (dam-building, use of pesticides) is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00027426
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  • 3
    Electronic Resource
    Electronic Resource
    Benthic invertebrates of some saline lakes of the Sud Lipez region, Bolivia (1993)
    Springer
    Hydrobiologia 267 (1993), S. 257-267 
    Details
    ISSN: 1573-5117
    Keywords: Benthos ; macroinvertebrates ; faunistical survey ; saline lakes ; Bolivia ; Sud Lipez region
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The benthic invertebrates fauna of most of the saline lakes of the Sud Lipez region (Bolivia, Altiplano) has been until now quite unstudied. Samples collected during an extensive survey of 12 lakes and two small inflow rivers allow a first list of the main macroinvertebrates living in these biotopes. The heterogeneous nature of these saline lakes with their freshwater springs and phreatic inflows offers a variety of habitats to macroinvertebrates. The benthic fauna in lakes with salinities 〉 10 g l−1 is not so low in density but includes few species and is dominated by Orthocladiinae and Podonominae larvae. In contrast, the freshwater springs and inflows are colonized by a diverse fauna, with a mixture of both freshwater and saline taxa, but dominated by Elmidae and Amphipoda. The lakes are quite isolated and, apart from some cosmopolitan organisms, their fauna can be quite distinctive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00018807
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  • 4
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    Benthic invertebrates of some saline lakes of the Sud Lipez region, Bolivia (1993)
    Springer
    Details
    Publication Date: 1993-09-01
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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  • 5
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    Limnologie du fleuve Bandama, C�te d'Ivoire (1983)
    Springer
    Details
    Publication Date: 1983-01-01
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
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