Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics?
The study of insect populations is dominated by research on terrestrial insects. Are aquatic insect populations different or are they just presumed to be different? We explore the evidence across several topics. (1) Populations of terrestrial herbivorous insects are constrained most often by enemies...
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ftdoajarticles:oai:doaj.org/article:6f558abf87c8418bb80b5533b8059d11 2023-05-15T17:33:51+02:00 Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? Jill Lancaster Barbara J. Downes 2018-11-01T00:00:00Z https://doi.org/10.3390/insects9040157 https://doaj.org/article/6f558abf87c8418bb80b5533b8059d11 EN eng MDPI AG https://www.mdpi.com/2075-4450/9/4/157 https://doaj.org/toc/2075-4450 2075-4450 doi:10.3390/insects9040157 https://doaj.org/article/6f558abf87c8418bb80b5533b8059d11 Insects, Vol 9, Iss 4, p 157 (2018) dispersal drift insect flight herbivory outbreaks oviposition North Atlantic Oscillation parasites population cycles population regulation Science Q article 2018 ftdoajarticles https://doi.org/10.3390/insects9040157 2022-12-30T23:03:40Z The study of insect populations is dominated by research on terrestrial insects. Are aquatic insect populations different or are they just presumed to be different? We explore the evidence across several topics. (1) Populations of terrestrial herbivorous insects are constrained most often by enemies, whereas aquatic herbivorous insects are constrained more by food supplies, a real difference related to the different plants that dominate in each ecosystem. (2) Population outbreaks are presumed not to occur in aquatic insects. We report three examples of cyclical patterns; there may be more. (3) Aquatic insects, like terrestrial insects, show strong oviposition site selection even though they oviposit on surfaces that are not necessarily food for their larvae. A novel outcome is that density of oviposition habitat can determine larval densities. (4) Aquatic habitats are often largely 1-dimensional shapes and this is presumed to influence dispersal. In rivers, drift by insects is presumed to create downstream dispersal that has to be countered by upstream flight by adults. This idea has persisted for decades but supporting evidence is scarce. Few researchers are currently working on the dynamics of aquatic insect populations; there is scope for many more studies and potentially enlightening contrasts with terrestrial insects. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Insects 9 4 157 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
dispersal drift insect flight herbivory outbreaks oviposition North Atlantic Oscillation parasites population cycles population regulation Science Q |
spellingShingle |
dispersal drift insect flight herbivory outbreaks oviposition North Atlantic Oscillation parasites population cycles population regulation Science Q Jill Lancaster Barbara J. Downes Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? |
topic_facet |
dispersal drift insect flight herbivory outbreaks oviposition North Atlantic Oscillation parasites population cycles population regulation Science Q |
description |
The study of insect populations is dominated by research on terrestrial insects. Are aquatic insect populations different or are they just presumed to be different? We explore the evidence across several topics. (1) Populations of terrestrial herbivorous insects are constrained most often by enemies, whereas aquatic herbivorous insects are constrained more by food supplies, a real difference related to the different plants that dominate in each ecosystem. (2) Population outbreaks are presumed not to occur in aquatic insects. We report three examples of cyclical patterns; there may be more. (3) Aquatic insects, like terrestrial insects, show strong oviposition site selection even though they oviposit on surfaces that are not necessarily food for their larvae. A novel outcome is that density of oviposition habitat can determine larval densities. (4) Aquatic habitats are often largely 1-dimensional shapes and this is presumed to influence dispersal. In rivers, drift by insects is presumed to create downstream dispersal that has to be countered by upstream flight by adults. This idea has persisted for decades but supporting evidence is scarce. Few researchers are currently working on the dynamics of aquatic insect populations; there is scope for many more studies and potentially enlightening contrasts with terrestrial insects. |
format |
Article in Journal/Newspaper |
author |
Jill Lancaster Barbara J. Downes |
author_facet |
Jill Lancaster Barbara J. Downes |
author_sort |
Jill Lancaster |
title |
Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? |
title_short |
Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? |
title_full |
Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? |
title_fullStr |
Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? |
title_full_unstemmed |
Aquatic versus Terrestrial Insects: Real or Presumed Differences in Population Dynamics? |
title_sort |
aquatic versus terrestrial insects: real or presumed differences in population dynamics? |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/insects9040157 https://doaj.org/article/6f558abf87c8418bb80b5533b8059d11 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Insects, Vol 9, Iss 4, p 157 (2018) |
op_relation |
https://www.mdpi.com/2075-4450/9/4/157 https://doaj.org/toc/2075-4450 2075-4450 doi:10.3390/insects9040157 https://doaj.org/article/6f558abf87c8418bb80b5533b8059d11 |
op_doi |
https://doi.org/10.3390/insects9040157 |
container_title |
Insects |
container_volume |
9 |
container_issue |
4 |
container_start_page |
157 |
_version_ |
1766132490424025088 |