The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia
During July and August 1988, 21 ponds and 33 ditch sites were sampled at Swavesey fens in East Anglia. Water from each site was collected and analysed at monthly intervals in the year preceding faunal sampling. Temperature and oxygen were measured on site. The "quality" of the faunal community was assessed by three approaches: a modification of the BMWP scoring system (Biological Monitoring Working Party); faunal richness was calculated as the number of faunal "groups" at each site; and by using Simpson's index of diversity. Statistical analysis was carried out to explore the relationships between sites, environmental variables and faunal diversity. The survey clearly showed the detrimental effects of elevated nitrate and phosphate from agricultural sources and the localised impacts of treated sewage effluent on invertebrates in ditches.
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Format: | article biblioteca |
Language: | English |
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1995
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Subjects: | Ecology, Limnology, aquatic insects, community composition, marshes, ponds, species diversity, stagnant water, Asellidae, England, Cambridge, |
Online Access: | http://hdl.handle.net/1834/22171 |
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dig-aquadocs-1834-221712021-07-04T03:58:40Z The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia Parish, Tim Bas, Jon Sparks, Tim Ecology Limnology aquatic insects community composition marshes ponds species diversity stagnant water Asellidae England Cambridge During July and August 1988, 21 ponds and 33 ditch sites were sampled at Swavesey fens in East Anglia. Water from each site was collected and analysed at monthly intervals in the year preceding faunal sampling. Temperature and oxygen were measured on site. The "quality" of the faunal community was assessed by three approaches: a modification of the BMWP scoring system (Biological Monitoring Working Party); faunal richness was calculated as the number of faunal "groups" at each site; and by using Simpson's index of diversity. Statistical analysis was carried out to explore the relationships between sites, environmental variables and faunal diversity. The survey clearly showed the detrimental effects of elevated nitrate and phosphate from agricultural sources and the localised impacts of treated sewage effluent on invertebrates in ditches. 2021-06-24T16:00:23Z 2021-06-24T16:00:23Z 1995 article FALSE 0961-4664 http://hdl.handle.net/1834/22171 en https://www.fba.org.uk/journals/index.php/FF/article/view/258 application/pdf application/pdf 163-177 http://aquaticcommons.org/id/eprint/4567 1256 2011-09-29 16:13:04 4567 Freshwater Biological Association |
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Ecology Limnology aquatic insects community composition marshes ponds species diversity stagnant water Asellidae England Cambridge Ecology Limnology aquatic insects community composition marshes ponds species diversity stagnant water Asellidae England Cambridge |
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Ecology Limnology aquatic insects community composition marshes ponds species diversity stagnant water Asellidae England Cambridge Ecology Limnology aquatic insects community composition marshes ponds species diversity stagnant water Asellidae England Cambridge Parish, Tim Bas, Jon Sparks, Tim The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia |
description |
During July and August 1988, 21 ponds and 33 ditch sites were sampled at Swavesey fens in East Anglia. Water from each site was collected and analysed at monthly intervals in the year preceding faunal sampling. Temperature and oxygen were measured on site. The "quality" of the faunal community was assessed by three approaches: a modification of the BMWP scoring system (Biological Monitoring Working Party); faunal richness was calculated as the number of faunal "groups" at each site; and by using Simpson's index of diversity. Statistical analysis was carried out to explore the relationships between sites, environmental variables and faunal diversity. The survey clearly showed the detrimental effects of elevated nitrate and phosphate from agricultural sources and the localised impacts of treated sewage effluent on invertebrates in ditches. |
format |
article |
topic_facet |
Ecology Limnology aquatic insects community composition marshes ponds species diversity stagnant water Asellidae England Cambridge |
author |
Parish, Tim Bas, Jon Sparks, Tim |
author_facet |
Parish, Tim Bas, Jon Sparks, Tim |
author_sort |
Parish, Tim |
title |
The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia |
title_short |
The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia |
title_full |
The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia |
title_fullStr |
The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia |
title_full_unstemmed |
The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia |
title_sort |
contrasting invertebrate fauna of freshwater habitats in the swavesey fens of east anglia |
publishDate |
1995 |
url |
http://hdl.handle.net/1834/22171 |
work_keys_str_mv |
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_version_ |
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