PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA
Abstract The diversity of the Canadian insect fauna decreases and its composition (at all taxonomic levels) changes as climates become progressively more harsh toward the north. This climatic trend dominates patterns of diversity, but many other factors interact to produce the observed patterns. In...
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Language: | English |
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Cambridge University Press (CUP)
1993
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Online Access: | http://dx.doi.org/10.4039/entm125165051-1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0071075X0000388X |
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crcambridgeupr:10.4039/entm125165051-1 2024-04-28T08:10:51+00:00 PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA Danks, H.V. 1993 http://dx.doi.org/10.4039/entm125165051-1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0071075X0000388X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Memoirs of the Entomological Society of Canada volume 125, issue S165, page 51-74 ISSN 0071-075X journal-article 1993 crcambridgeupr https://doi.org/10.4039/entm125165051-1 2024-04-09T06:54:57Z Abstract The diversity of the Canadian insect fauna decreases and its composition (at all taxonomic levels) changes as climates become progressively more harsh toward the north. This climatic trend dominates patterns of diversity, but many other factors interact to produce the observed patterns. In the arctic, species richness is greatest in the west. Farther south, overall species richness is greatest in the west (especially British Columbia), associated with coastal and cordilleran habitats, and to a somewhat smaller degree in the southeast (especially Ontario), associated with deciduous forests and particularly with transitional forests which occupy a large area of southeastern Canada. However, certain taxa are better represented in the west or in the east, depending on present-day habitats and on historical factors. These conclusions, based chiefly on a sample of taxa of different types, are possible only because basic systematic work has been carried out to distinguish and map the species. Preliminary data on numerical patterns, such as the numbers of species relative to different potential resources such as host plants in different zones, tend to suggest that the occurrence of species in the north may depend so heavily on climatic factors that potential resources are not fully exploited and the effects of interspecific interactions on diversity are reduced. Article in Journal/Newspaper Arctic Cambridge University Press Memoirs of the Entomological Society of Canada 125 S165 51 74 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The diversity of the Canadian insect fauna decreases and its composition (at all taxonomic levels) changes as climates become progressively more harsh toward the north. This climatic trend dominates patterns of diversity, but many other factors interact to produce the observed patterns. In the arctic, species richness is greatest in the west. Farther south, overall species richness is greatest in the west (especially British Columbia), associated with coastal and cordilleran habitats, and to a somewhat smaller degree in the southeast (especially Ontario), associated with deciduous forests and particularly with transitional forests which occupy a large area of southeastern Canada. However, certain taxa are better represented in the west or in the east, depending on present-day habitats and on historical factors. These conclusions, based chiefly on a sample of taxa of different types, are possible only because basic systematic work has been carried out to distinguish and map the species. Preliminary data on numerical patterns, such as the numbers of species relative to different potential resources such as host plants in different zones, tend to suggest that the occurrence of species in the north may depend so heavily on climatic factors that potential resources are not fully exploited and the effects of interspecific interactions on diversity are reduced. |
format |
Article in Journal/Newspaper |
author |
Danks, H.V. |
spellingShingle |
Danks, H.V. PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA |
author_facet |
Danks, H.V. |
author_sort |
Danks, H.V. |
title |
PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA |
title_short |
PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA |
title_full |
PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA |
title_fullStr |
PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA |
title_full_unstemmed |
PATTERNS OF DIVERSITY IN THE CANADIAN INSECT FAUNA |
title_sort |
patterns of diversity in the canadian insect fauna |
publisher |
Cambridge University Press (CUP) |
publishDate |
1993 |
url |
http://dx.doi.org/10.4039/entm125165051-1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0071075X0000388X |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Memoirs of the Entomological Society of Canada volume 125, issue S165, page 51-74 ISSN 0071-075X |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.4039/entm125165051-1 |
container_title |
Memoirs of the Entomological Society of Canada |
container_volume |
125 |
container_issue |
S165 |
container_start_page |
51 |
op_container_end_page |
74 |
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1797578535481638912 |