THE LIFE HISTORY OF <i>LESTES CONGENER</i> (ODONATA: ZYGOPTERA) ON THE CANADIAN PRAIRIES

Sawchyn, W. W.; Gillott, Cedric

doi:10.4039/ent106367-4

Cited by 32 publications

(31 citation statements)

References 8 publications

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“…Females oviposit in tandem within the stems of sedges and other plants, and as is typical of temperate-zone lestids, the species overwinters in the egg stage (Montgomery 1925;Harwood 1960;Sawchyn & Gillott 1974a). In this paper we extend earlier observations of oviposition in L. congener and discuss the utilization of dry Eleocharis obtusa stems as oviposition sites at a small pond in New York State.…”

Section: Introductionmentioning

confidence: 76%

“…Tandem oviposition has been described in many species of lestids, e.g., Lestes barbarus (Fabricius) and L. virens vesta/is (Rambur) (Utzeri et al 1987), L. disjunctus australis Walker (Bick & Bick 1961), L. eurinus Say (Lutz & Pittman 1968), L. sponsa (Hansemann) (Stoks et al 1997), L. unguiculatus Hagen (Bick & Hornuff 1965), and previously in L. congener (Montgomery 1925;Harwood 1960;Sawchyn & Gillott 1974a). L. rectangularis Say appears to be unusual in this respect, since females typically oviposit unattended by males (Gower & Kormondy 1963).…”

Section: Discussionmentioning

confidence: 97%

“…Since we saw other lestid species only rarely during the entire breeding season, as described above, we assumed that the eggs we observed in stems were laid by L. congener. Eggs were classified as recently laid or older according to descriptions by Sawchyn & Gillott (1974a).…”

Section: Methodsmentioning

confidence: 99%

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Oviposition behavior and substrate utilization byLestes congener(Odonata: Lestidae)

Arnold¹

2004

International Journal of Odonatology

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Here we describe tandem oviposition (contact guarding) in Lestes congener and the use of dry stems of the sedge Eleocharis obtusa as oviposition substrates at a pond in New York State. Pairs formed away from the pond, then flew to Eleocharis patches on dry land 0.5-3 m from the water's edge. Some copulations occurred at or near oviposition sites; these pairs began ovipositing immediately afterwards. Eggs were placed singly in a line of incisions down the length of the plant stem, and several to many different pairs might utilize a single stem over a period of time. However, less than 1% of the surface area of such stems possessed incision scars, although, in regions of stems with a high density of incisions, some eggs were close enough to be touching. Lone males were present in small numbers at the pond, but male harassment of tandems was minimal and we observed no female take-overs. Some females remained to complete oviposition alone after being deserted by their mates. Lone females were most common in late afternoon, when few lone males remained at the pond and take-over risks were small.

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Section: Introductionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 97%

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Oviposition behavior and substrate utilization byLestes congener(Odonata: Lestidae)

Arnold¹

2004

International Journal of Odonatology

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“…The preference of L. macrostigma for B. maritimus rather than dead shoots of J. maritimus is likely to reflect advantages for eggs: lower parasitism rate and/or better survival during diapauses and/or better access to conditions necessary for postdiapause development and/or a higher hatching rate (Sawchyn and Gillot 1974;Siva-Jothy et al 1995;Reinhardt and Gerighausen 2001). In L. macrostigma, shoots containing eggs need to be flooded for successful egg development and the sooner the flooding of the egg-clutch the higher the hatching rate (Lambret, unpublished data, 2014).…”

Section: Reasons For Choice Of Bolboschoenus Maritimus Versus Juncus mentioning

confidence: 98%

“…Here, we expected the preference for specific substrates to be consistent during the whole life cycle because this preference should indicate a selection pressure on egg development and survival which should transpose to the individual fitness level (Sawchyn and Gillot 1974;SivaJothy et al 1995). The aim of this study was first to define whether the plant preferences after the initial choice of landing site, namely ovipositor insertion site selection and egg-deposition, are in accordance with the initial choice.…”

Section: Introductionmentioning

confidence: 97%

Plant preference during oviposition in the endangered dragonfly Lestes macrostigma (Odonata: Zygoptera) and consequences for its conservation

Besnard

Matushkina

2015

J Insect Conserv

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Biotic and abiotic features impact the breeding success of animals and thereby induce selection pressures for habitat selection. Little is known about the plant selection by predatory insects which lay their eggs within plants.In previous work, we have highlighted that during oviposition males of Lestes macrostigma-an endangered dragonfly species-prefer to land on Bolboschoenus maritimus and dead shoots of Juncus maritimus but disfavour living shoots in that species, and that females seem to prefer dead material during substrate examination. In this study we assessed behavioural preference in females during substrate examination, substrates suitability for oviposition, the effort females had to make to lay their eggs and their resulting oviposition rate. We show L. macrostigma has a preference for B. maritimus and, albeit to a lesser extent, for dead substrates. No clear trend appeared regarding substrate suitability. Females had to make a greater effort to lay an egg within living shoots of J. maritimus. By contrast, this effort was less in B. maritimus and dead shoots of J. maritimus and the oviposition rates were higher for these two types of substrate. We hypothesize that these preferences are relevant in the selection of oviposition substrates which are more likely to be flooded earlier by rainfall, reducing risk of egg desiccation and increasing hatching success. With regard to conservation, B. maritimus and J. maritimus should be encouraged by wildlife managers especially in habitat restoration programs which aim to increase the number of suitable breeding sites for the species.

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The Abiotic Environment

Entomology

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THE LIFE HISTORY OF LESTES CONGENER (ODONATA: ZYGOPTERA) ON THE CANADIAN PRAIRIES

Cited by 32 publications

References 8 publications

Oviposition behavior and substrate utilization byLestes congener(Odonata: Lestidae)

Oviposition behavior and substrate utilization byLestes congener(Odonata: Lestidae)

Plant preference during oviposition in the endangered dragonfly Lestes macrostigma (Odonata: Zygoptera) and consequences for its conservation

The Abiotic Environment

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