The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland
Abstract Lupinus nootkatensis is an exotic plant species that has been used for large‐scale sowing all around Iceland for land reclamation of eroded surfaces protected from livestock grazing. Until the early 1990s, L. nootkatensis was free from any significant arthropod herbivory in Iceland, whereas...
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crwiley:10.1111/afe.12368 2024-06-02T08:08:33+00:00 The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland Hrafnkelsdottir, Brynja Sigurdsson, Bjarni D. Oddsdottir, Edda S. Sverrisson, Halldor Halldorsson, Gudmundur Hjálmars R. Bárðarsonar and Elsa S. Bárðarson Memorial Fund The Science and Reasearch fund of South Iceland 2019 http://dx.doi.org/10.1111/afe.12368 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fafe.12368 https://onlinelibrary.wiley.com/doi/pdf/10.1111/afe.12368 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/afe.12368 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Agricultural and Forest Entomology volume 22, issue 2, page 136-145 ISSN 1461-9555 1461-9563 journal-article 2019 crwiley https://doi.org/10.1111/afe.12368 2024-05-03T11:45:54Z Abstract Lupinus nootkatensis is an exotic plant species that has been used for large‐scale sowing all around Iceland for land reclamation of eroded surfaces protected from livestock grazing. Until the early 1990s, L. nootkatensis was free from any significant arthropod herbivory in Iceland, whereas, after 1991, many outbreaks of native insect species, primarily Ceramica pisi and Eupithecia satyrata , have been recorded. These outbreaks have caused repeated total defoliation of extensive areas of L. nootkatensis , although the effects on its development are mostly unknown. We studied the effect of: (i) reduced herbivory; (ii) increased herbivory; and (iii) simulated increased herbivory, compared with (iv) unmanipulated herbivory, on defoliation and seed production of L. nootkatensis in a 3‐year field study within two sites at contrasting ages and successional stages. The results obtained showed that: (i) seed production across all treatments was negatively related to defoliation; (ii) reduced herbivory had a positive effect on the number of flowering stems and seed yield; and (iii) these effects depended on age and/or the successional stage because they were only significant in the older L. nootkatensis site. These findings indicate that arthropod herbivory may affect the invasiveness of L. nootkatensis in Iceland by reducing the seed production and the spatial distribution rate of late successional lupin communities. Article in Journal/Newspaper Iceland Wiley Online Library Agricultural and Forest Entomology 22 2 136 145 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Lupinus nootkatensis is an exotic plant species that has been used for large‐scale sowing all around Iceland for land reclamation of eroded surfaces protected from livestock grazing. Until the early 1990s, L. nootkatensis was free from any significant arthropod herbivory in Iceland, whereas, after 1991, many outbreaks of native insect species, primarily Ceramica pisi and Eupithecia satyrata , have been recorded. These outbreaks have caused repeated total defoliation of extensive areas of L. nootkatensis , although the effects on its development are mostly unknown. We studied the effect of: (i) reduced herbivory; (ii) increased herbivory; and (iii) simulated increased herbivory, compared with (iv) unmanipulated herbivory, on defoliation and seed production of L. nootkatensis in a 3‐year field study within two sites at contrasting ages and successional stages. The results obtained showed that: (i) seed production across all treatments was negatively related to defoliation; (ii) reduced herbivory had a positive effect on the number of flowering stems and seed yield; and (iii) these effects depended on age and/or the successional stage because they were only significant in the older L. nootkatensis site. These findings indicate that arthropod herbivory may affect the invasiveness of L. nootkatensis in Iceland by reducing the seed production and the spatial distribution rate of late successional lupin communities. |
author2 |
Hjálmars R. Bárðarsonar and Elsa S. Bárðarson Memorial Fund The Science and Reasearch fund of South Iceland |
format |
Article in Journal/Newspaper |
author |
Hrafnkelsdottir, Brynja Sigurdsson, Bjarni D. Oddsdottir, Edda S. Sverrisson, Halldor Halldorsson, Gudmundur |
spellingShingle |
Hrafnkelsdottir, Brynja Sigurdsson, Bjarni D. Oddsdottir, Edda S. Sverrisson, Halldor Halldorsson, Gudmundur The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland |
author_facet |
Hrafnkelsdottir, Brynja Sigurdsson, Bjarni D. Oddsdottir, Edda S. Sverrisson, Halldor Halldorsson, Gudmundur |
author_sort |
Hrafnkelsdottir, Brynja |
title |
The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland |
title_short |
The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland |
title_full |
The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland |
title_fullStr |
The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland |
title_full_unstemmed |
The effect of insect herbivory on seed production of Lupinus nootkatensis, an introduced species in Iceland |
title_sort |
effect of insect herbivory on seed production of lupinus nootkatensis, an introduced species in iceland |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/afe.12368 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fafe.12368 https://onlinelibrary.wiley.com/doi/pdf/10.1111/afe.12368 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/afe.12368 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Agricultural and Forest Entomology volume 22, issue 2, page 136-145 ISSN 1461-9555 1461-9563 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/afe.12368 |
container_title |
Agricultural and Forest Entomology |
container_volume |
22 |
container_issue |
2 |
container_start_page |
136 |
op_container_end_page |
145 |
_version_ |
1800753853879025664 |