MontoroGironaNavarroMorin2018

Référence

Montoro Girona, M., Navarro, L. and Morin, H. (2018) A secret hidden in the sediments: Lepidoptera scales. Frontiers in Ecology and Evolution, 6(JAN). (Scopus )

Résumé

Natural disturbance is one of the major topics in forest ecology. However, most paleoecological studies have only considered the influence of wildfire as an agent of disturbance, with fire history based primarily on the use of charcoal as a proxy for fire events. The frequency and intensity of insect outbreaks and their effect on the forest landscape have been neglected due to the absence of an effective proxy tool. Finding indicators able to provide insight into the impacts of past insect outbreaks is therefore essential. Fossil moth (Lepidoptera) scales offer a new approach for interpreting past insect-related disturbances and assessing the interactions between climate, fire and insect outbreaks. Paleoindicators must respond to three main criteria: (1) be in high abundance, (2) allow for easy identification and (3) remain well-preserved in sediment records. We demonstrate that wing scales are abundant in the boreal forest during insect outbreak periods. We also show that due to their chitin composition, these scales remain well-preserved throughout a 10,000-year sediment record. Furthermore, they are relatively easy to identify after being recovered from lake sediments. Therefore, we introduce the needs, potential and applications of this paleoindicator in forest ecology, and the main directions for the future research. This new approach offers an important scientific advance in ecology through a much improved, higher resolution reconstruction of an important natural disturbance: insect outbreaks. © 2018 Montoro Girona, Navarro and Morin.

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@ARTICLE { MontoroGironaNavarroMorin2018,
    AUTHOR = { Montoro Girona, M. and Navarro, L. and Morin, H. },
    TITLE = { A secret hidden in the sediments: Lepidoptera scales },
    JOURNAL = { Frontiers in Ecology and Evolution },
    YEAR = { 2018 },
    VOLUME = { 6 },
    NUMBER = { JAN },
    NOTE = { cited By 0 },
    ABSTRACT = { Natural disturbance is one of the major topics in forest ecology. However, most paleoecological studies have only considered the influence of wildfire as an agent of disturbance, with fire history based primarily on the use of charcoal as a proxy for fire events. The frequency and intensity of insect outbreaks and their effect on the forest landscape have been neglected due to the absence of an effective proxy tool. Finding indicators able to provide insight into the impacts of past insect outbreaks is therefore essential. Fossil moth (Lepidoptera) scales offer a new approach for interpreting past insect-related disturbances and assessing the interactions between climate, fire and insect outbreaks. Paleoindicators must respond to three main criteria: (1) be in high abundance, (2) allow for easy identification and (3) remain well-preserved in sediment records. We demonstrate that wing scales are abundant in the boreal forest during insect outbreak periods. We also show that due to their chitin composition, these scales remain well-preserved throughout a 10,000-year sediment record. Furthermore, they are relatively easy to identify after being recovered from lake sediments. Therefore, we introduce the needs, potential and applications of this paleoindicator in forest ecology, and the main directions for the future research. This new approach offers an important scientific advance in ecology through a much improved, higher resolution reconstruction of an important natural disturbance: insect outbreaks. © 2018 Montoro Girona, Navarro and Morin. },
    AFFILIATION = { Department of Fundamental Sciences, Université du Québec à Chicoutimi, Saguenay, QuébecQC, Canada; Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences (SLU), Umeå, Sweden },
    ART_NUMBER = { 2 },
    AUTHOR_KEYWORDS = { Climate change; Forest ecology; Holocene; Insect outbreaks; Natural disturbance; Paleoecology; Sustainable forest management },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.3389/fevo.2018.00002 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041333602&doi=10.3389%2ffevo.2018.00002&partnerID=40&md5=d71c1ef12ccee60b16487b1a639dc1cf },
}

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