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Alexandra Magro

38
Documents
Identifiants chercheurs

Présentation

My main research interests lie in the area of evolutionary ecology of predator-prey interactions. Within this field, my current research topic is on the evolution of predator life-history traits under the constraints imposed by their prey and the chemical ecology of predator-prey interactions. The predators and preys I’m interested in are ladybirds (Coccinellidae: Coleoptera) and aphids / coccids (Aphididae / Coccoidea: Hemiptera) and therefore my research covers also the applied field of biological control. In the beginning of my career, as a Master and PhD student, I worked on the communities of predatory ladybirds living on citrus groves and their role as beneficial insects for the control of pests in spring and summer. Recently, I became interested in the overwintering behaviour of ladybirds (Susset et al, 2013, J. Chem. Ecol, Susset et al, 2017, Ecol. Ent.). Because “Nothing in evolution or ecology makes sense except in the light of the other” (Pelletier et al, 2009, Philos. Trans. R. Soc. B) and a phylogeny of ladybirds was missing, I developed a collaboration with colleagues on the subject (Magro et al, 2010, Mol. Phyl. Evol.). This experience together with my skills on the natural history and community ecology of the Coccinellidae is an asset to ladybirds’ ecology in general: I was driven to participate to projects running from the ecology of myrmecophilous ladybirds to the study of ladybird invasions. In the first years of my associate professor career (2000-2006) I was faced with a new field – teachers training in ecology (French agricultural secondary school system). The objective of the ecology national curriculum, following European regulations favouring sustainable agriculture, was to give pupils (future agricultural professionals) a better understanding of the environmental framework within which they would be working and a better appreciation of environmental questions. Although well intentioned, the curriculum was difficult to teach: teachers felted unable to link ecology concepts to the applied agricultural matters pupils were interested in and to motivate them. Therefore, with a colleague, I developed a research project on ecological education and suggested a new approach (Magro & Hemptinne, 2011, “Enseigner l’écologie: une autre approche didactique – Teaching ecology: a new pedagogical approach”). This proposal was appreciated by teachers, well received in international conferences and I was invited to present it in the symposium « Motivation and Interest » in 2001 at Rendsburg - Germany. Today, although my research activities are focused on ecology, I still devote some time to a partnership with secondary school teachers to produce teaching resources for ecology education, often based on my own research projects in ecology. I believe this collaboration between research in ecology and ecology education, is essential to foster the adoption of agroecology practices by farmers, teachers and pupils

Publications

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Biological control needs evolutionary perspectives of ecological interactions

Arnaud Sentis , Jean-Louis Hemptinne , Alexandra Magro , Yannick Outreman
Evolutionary Applications, 2022, 15 (10), pp.1537-1554. ⟨10.1111/eva.13457⟩
Article dans une revue hal-03890334v1
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Prey life‐history influences the evolution of egg mass and indirectly reproductive investment in a group of free‐living insect predators

Jean‐louis Hemptinne , Emilie Lecompte , Arnaud Sentis , Anthony F G Dixon , Alexandra Magro
Ecology and Evolution, 2021, 12 (1), ⟨10.1002/ece3.8438⟩
Article dans une revue hal-04142672v1
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Intraspecific difference among herbivore lineages and their host-plant specialization drive the strength of trophic cascades

Arnaud Sentis , Raphaël Bertram , Nathalie Dardenne , Jean-Christophe Simon , Alexandra Magro
Ecology Letters, 2020, 23 (8), pp.1242-1251. ⟨10.1111/ele.13528⟩
Article dans une revue hal-03020092v1
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First case of parthenogenesis in ladybirds (Coleoptera: Coccinellidae) suggests new mechanisms for the evolution of asexual reproduction

Alexandra Magro , Emilie Lecompte , Jean-Louis Hemptinne , António Lucas Soares , Anne‐marie Dutrillaux
Journal of Zoological Systematics and Evolutionary Research, 2020, 58 (1), pp.194-208. ⟨10.1111/jzs.12339⟩
Article dans une revue hal-02404220v1
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Different phenotypic plastic responses to predators observed among aphid lineages specialized on different host plants

Arnaud Sentis , Raphaël Bertram , Nathalie Dardenne , Felipe Ramon-Portugal , Ines Louit
Scientific Reports, 2019, 9 (1), pp.9017. ⟨10.1038/s41598-019-45220-0⟩
Article dans une revue hal-02349155v1
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Evolution without standing genetic variation: change in transgenerational plastic response under persistent predation pressure

Arnaud Sentis , Raphaël Bertram , Nathalie Dardenne , Felipe Ramon-Portugal , Gilles Espinasse
Heredity, 2018, 121 (3), pp.266-281. ⟨10.1038/s41437-018-0108-8⟩
Article dans une revue hal-01887396v1

Overwintering aggregations are part of Hippodamia undecimnotata’s (Coleoptera: Coccinellidae) mating system

Eline Catherine Susset , Jean-Louis Hemptinne , Etienne Danchin , Alexandra Magro , J Joe Hull
PLoS ONE, 2018, 13 (6), pp.e0197108. ⟨10.1371/journal.pone.0197108⟩
Article dans une revue hal-02104347v1
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The evolution of chemical defenses along invasion routes: Harmonia axyridis Pallas (Coccinellidae: Coleoptera) as a case study

Alexandra Magro , Felipe Ramon-Portugal , Benoit Facon , Christine Ducamp , Jean-Louis Hemptinne
Ecology and Evolution, 2018, 8 (16), pp.8344-8353. ⟨10.1002/ece3.4299⟩
Article dans une revue hal-02063093v1

Using species distribution models to locate animal aggregations: a case study with Hippodamia undecimnotata (Schneider) overwintering aggregation sites

Eline Susset , Alexandra Magro , Jean-Louis Hemptinne
Ecological Entomology, 2017, 42 (3), pp.345-354. ⟨10.1111/een.12392⟩
Article dans une revue hal-02062389v1

Chemical defences of native European coccinellid eggs against intraguild predation by the invasive Asian coccinellid, Harmonia axyridis (Pallas)

A. Katsanis , A. Magro , F. Ramon-Portugal , M. Kenis , D. Babendreier
BioControl, 2017, 62 (3), pp.385-396. ⟨10.1007/s10526-017-9807-y⟩
Article dans une revue hal-02062354v1

Overwintering Sites Might not be Safe Haven for Hippodamia undecimnotata (Schneider) (Coleoptera: Coccinellidae)

Eline Susset , Jean-Louis Hemptinne , Alexandra Magro
Coleopterists Bulletin, 2017, 71 (3), pp.556-564. ⟨10.1649/0010-065X-71.3.556⟩
Article dans une revue hal-02104356v1

Is assessment of oviposition sites using conspecific larval cues a general mechanism in aphidophagous ladybirds (Coccinellidae)?

A. Magro , M. Hill , M. Gomez , Jean-Louis Hemptinne
Journal of Applied Entomology, 2017, 141 (3), pp.235-240. ⟨10.1111/jen.12342⟩
Article dans une revue hal-02104366v1

Genetic diversity and structuring across the range of a widely distributed ladybird: focus on rear-edge populations phenotypically divergent

Emilie Lecompte , Mohand-Ameziane Bouanani , Alexandra Magro , Brigitte Crouau-Roy
Ecology and Evolution, 2016, 6 (15), pp.5517-5529. ⟨10.1002/ece3.2288⟩
Article dans une revue hal-02062355v1

The harlequin ladybird, Harmonia axyridis: global perspectives on invasion history and ecology

Helen E. Roy , Peter M. J. Brown , Tim Adriaens , Nick Berkvens , Isabel Borges
Biological Invasions, 2016, 18 (4), pp.997-1044. ⟨10.1007/s10530-016-1077-6⟩
Article dans une revue hal-02062382v1
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Limits on Fast Radio Bursts at 145 MHz with ARTEMIS, a real-time software backend

A. Karastergiou , J. Chennamangalam , W. Armour , C. Williams , B. Mort
Monthly Notices of the Royal Astronomical Society, 2015, 452 (2), pp.1254-1262. ⟨10.1093/mnras/stv1306⟩
Article dans une revue insu-01323135v1

Is there an associational resistance of winter pea-durum wheat intercrops towards Acyrthosiphon pisum Harris?

R. Ndzana , A. Magro , L. Bedoussac , E. Justes , E. Journet
Journal of Applied Entomology, 2014, 138 (8), pp.577-585. ⟨10.1111/jen.12119⟩
Article dans une revue hal-02062380v1

The Role of Semiochemicals in Short-Range Location of Aggregation Sites in Adalia bipunctata (Coleoptera, Coccinellidae)

Eline Susset , Felipe Ramon-Portugal , Jean-Louis Hemptinne , Sarah Dewhirst , Michael Birkett
Journal of Chemical Ecology, 2013, 39 (5), pp.591-601. ⟨10.1007/s10886-013-0285-0⟩
Article dans une revue hal-02062386v1
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Evolutionary Perspectives on Myrmecophily in Ladybirds

Amélie Vantaux , Olivier Roux , Alexandra Magro , Jérôme Orivel
PSYCHE, 2012, 2012, pp.1-7. ⟨10.1155/2012/591570⟩
Article dans une revue hal-02062391v1

Role of intraguild predation in aphidophagous guilds

Jean-Louis Hemptinne , A. Magro , C. Saladin , A. Dixon
Journal of Applied Entomology, 2012, 136 (3), pp.161-170. ⟨10.1111/j.1439-0418.2011.01626.x⟩
Article dans une revue hal-02062397v1

Body size and the rate of spread of invasive ladybird beetles in North America

Jean-Louis Hemptinne , A. Magro , E. Evans , A. Dixon
Biological Invasions, 2012, 14 (3), pp.595-605. ⟨10.1007/s10530-011-0101-0⟩
Article dans une revue hal-02062353v1

Prey availability in time and space is a driving force in life history evolution of predatory insects

Isabel Borges , António Onofre Soares , Alexandra Magro , Jean-Louis Hemptinne
Evolutionary Ecology, 2011, 25 (6), pp.1307-1319. ⟨10.1007/s10682-011-9481-y⟩
Article dans une revue hal-02062349v1

The chemical ecology of Harmonia axyridis

John Sloggett , Alexandra Magro , François Verheggen , Jean-Louis Hemptinne , William Hutchison
BioControl, 2011, 56 (4), pp.643-661. ⟨10.1007/s10526-011-9376-4⟩
Article dans une revue hal-02092459v1

Phylogeny of ladybirds (Coleoptera : Coccinellidae) : are the subfamilies monophyletic ?

Alexandra Magro , E. Lecompte , F. Magné , Jean-Louis Hemptinne , B. Crouau-Roy
Molecular Phylogenetics and Evolution, 2010, 54, pp.833-848
Article dans une revue hal-00595731v1

Oviposition deterring infochemicals in ladybirds : role of Phylogeny

Alexandra Magro , C. Ducamp , F. Ramon-Portugal , E. Lecompte , B. Crouau-Roy
Evolutionary Ecology, 2010, 24, pp.251-271
Article dans une revue hal-00595727v1

Coccinella septempunctata ( Coleoptera, Coccinellidae) : a species complex ?

J. Marin , B. Crouau-Roy , Jean-Louis Hemptinne , E. Lecompte , Alexandra Magro
Zoologica Scripta, 2010, 39 (6), pp.591-602. ⟨10.1111/j.1463-6409.2010.00450.x⟩
Article dans une revue hal-00595772v1

Host-Specific Myrmecophily and Myrmecophagy in the Tropical Coccinellid Diomus thoracicus in French Guiana

Amélie Vantaux , Olivier Roux , Alexandra Magro , Nathan Tene Ghomsi , Robert D. Gordon
Biotropica, 2010, 42 (5), pp.622-629. ⟨10.1111/j.1744-7429.2009.00614.x⟩
Article dans une revue hal-01093932v1

Coccinella septempunctata (Coleoptera, Coccinellidae): a species complex?

Julie Marin , Brigitte Crouau-Roy , Jean-Louis Hemptinne , Emilie Lecompte , Alexandra Magro
Zoologica Scripta, 2010, 39 (6), pp.591-602. ⟨10.1111/j.1463-6409.2010.00450.x⟩
Article dans une revue hal-02062378v1

Phylogeny of ladybirds (Coleoptera: Coccinellidae): Are the subfamilies monophyletic?

A. Magro , E. Lecompte , F. Magné , Jean-Louis Hemptinne , B. Crouau-Roy
Molecular Phylogenetics and Evolution, 2010, 54 (3), pp.833-848. ⟨10.1016/j.ympev.2009.10.022⟩
Article dans une revue hal-02062371v1

Oviposition deterring infochemicals in ladybirds: the role of phylogeny

Alexandra Magro , Christine Ducamp , Felipe Ramon-Portugal , Emilie Lecompte , Brigitte Crouau-Roy
Evolutionary Ecology, 2010, 24 (1), pp.251 - 271. ⟨10.1007/s10682-009-9304-6⟩
Article dans une revue hal-01862757v1

Chemical protection of Calvia 14-guttata eggs against intraguild predation by the invasive ladybird Harmonia axyridis.

R.L. Ware , F. Ramon-Portugal , Alexandra Magro , C. Ducamp , Jean-Louis Hemptinne
BioControl, 2008, 53, pp.189-200
Article dans une revue hal-00263761v1

Chemical protection of Calvia quatuordecimguttata eggs against intraguild predation by the invasive ladybird Harmonia axyridis

Remy Lian Ware , Felipe Ramon-Portugal , Alexandra Magro , Christine Ducamp , Jean-Louis Hemptinne
BioControl, 2008, 53 (1), pp.189 - 200. ⟨10.1007/s10526-007-9129-6⟩
Article dans une revue hal-01862750v1

Assessment of patch quality by ladybirds: relative response to conspecific and heterospecific larval tracks a consequence of habitat similarity?

Alexandra Magro , Joseph Téné , Nicolas Bastin , Anthony Dixon , Jean-Louis Hemptinne
Chemoecology, 2007, 17 (1), pp.37-45. ⟨10.1007/s00049-006-0357-5⟩
Article dans une revue hal-02062370v1

Does the satiation hypothesis account for the differences in efficacy of coccidophagous and aphidophagous ladybird beetles in biological control? A test with Adalia bipunctata and Cryptolaemus montrouzieri

A. Magro , J. Hemptinne , P. Codreanu , S. Grosjean , A. Dixon
BioControl, 2002, 47 (5), pp.537-543. ⟨10.1023/A:1016589724566⟩
Article dans une revue hal-02062368v1