Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size
Life history phenomena of the mayfly Leptophlebia cupida (Say) from a subarctic stream of Canada were found to be best interpreted by combining size-frequency distributions and developmental stage data. Autumn was a period of intense growth and uniform development; both growth and development were r...
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Language: | English |
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Canadian Science Publishing
1970
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Online Access: | http://dx.doi.org/10.1139/z70-050 http://www.nrcresearchpress.com/doi/pdf/10.1139/z70-050 |
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crcansciencepubl:10.1139/z70-050 2023-12-17T10:50:47+01:00 Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size Clifford, Hugh F. 1970 http://dx.doi.org/10.1139/z70-050 http://www.nrcresearchpress.com/doi/pdf/10.1139/z70-050 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 48, issue 2, page 305-316 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1970 crcansciencepubl https://doi.org/10.1139/z70-050 2023-11-19T13:38:47Z Life history phenomena of the mayfly Leptophlebia cupida (Say) from a subarctic stream of Canada were found to be best interpreted by combining size-frequency distributions and developmental stage data. Autumn was a period of intense growth and uniform development; both growth and development were retarded but not completely stopped during the 6-month winter period; development accelerated rapidly after the spring breakup even though water temperatures were still near 0 °C. Total fecundity, average egg size, and total egg volume varied directly with the size of the female. Last instar nymphs and sub-imagos of a given length had about the same number and size of eggs, but imagos of the same length had larger eggs. Analysis of nymphal size allometry indicated that none of the investigated body parts of either sex was exhibiting isometric growth with that of total length. All female dimensions and some male dimensions deviated from simple size allometry when the nymphs were about 7 to 9 mm in total length; a hypothesis with biological implication is; offered, accounting for these deviations. Length–volume biomass regression showed the nymphs conforming closely to the cube law; similar regressions for other stream invertebrates are also presented. Article in Journal/Newspaper Subarctic Canadian Science Publishing (via Crossref) Canada Canadian Journal of Zoology 48 2 305 316 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Clifford, Hugh F. Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Life history phenomena of the mayfly Leptophlebia cupida (Say) from a subarctic stream of Canada were found to be best interpreted by combining size-frequency distributions and developmental stage data. Autumn was a period of intense growth and uniform development; both growth and development were retarded but not completely stopped during the 6-month winter period; development accelerated rapidly after the spring breakup even though water temperatures were still near 0 °C. Total fecundity, average egg size, and total egg volume varied directly with the size of the female. Last instar nymphs and sub-imagos of a given length had about the same number and size of eggs, but imagos of the same length had larger eggs. Analysis of nymphal size allometry indicated that none of the investigated body parts of either sex was exhibiting isometric growth with that of total length. All female dimensions and some male dimensions deviated from simple size allometry when the nymphs were about 7 to 9 mm in total length; a hypothesis with biological implication is; offered, accounting for these deviations. Length–volume biomass regression showed the nymphs conforming closely to the cube law; similar regressions for other stream invertebrates are also presented. |
format |
Article in Journal/Newspaper |
author |
Clifford, Hugh F. |
author_facet |
Clifford, Hugh F. |
author_sort |
Clifford, Hugh F. |
title |
Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size |
title_short |
Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size |
title_full |
Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size |
title_fullStr |
Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size |
title_full_unstemmed |
Analysis of a northern mayfly (Ephemeroptera) population, with special reference to allometry of size |
title_sort |
analysis of a northern mayfly (ephemeroptera) population, with special reference to allometry of size |
publisher |
Canadian Science Publishing |
publishDate |
1970 |
url |
http://dx.doi.org/10.1139/z70-050 http://www.nrcresearchpress.com/doi/pdf/10.1139/z70-050 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Canadian Journal of Zoology volume 48, issue 2, page 305-316 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z70-050 |
container_title |
Canadian Journal of Zoology |
container_volume |
48 |
container_issue |
2 |
container_start_page |
305 |
op_container_end_page |
316 |
_version_ |
1785575854685814784 |