Ecosystems are defined by the community of living organisms and the way they interact with each other and with their environment. Insects and plants are key taxa in terrestrial ecosystems and their networks determine the trophic structure of environments. However, the factors that determine these interactions are not well understood. My research focuses on the use of plant-insect interactions as an indicator of ecosystem changes over time. I observe the traces of herbivory directly on fossil and modern leaves using various methods based on damage morphology, leaf anatomy, their chemical signatures

Benjamin Adroit, PhD Environmental sciences & Paleobiology

Benjamin Adroit

🎓PhD Ecology Envmt Sciences, Plant-Insect interactions, Global Change, (Paleo)Botany 🍃🍂 - BenjaminAdroit

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Listen to Après La Thèse on Spotify. Cécile et Benjamin sont deux jeunes chercheurs en postdoc qui souhaitent documenter les expériences personnelles et professionnelles des personnes diplômées d’un doctorat. L’objectif de ce podcast est d’apporter la lumière sur la myriade de possibilités qu’il existe après avoir réaliser une thèse afin d’aider les étudiants à trouver leur voie. Il s’agit d’une table ronde de discussion sur les expériences d’après thèse de leurs invité(e)s. Ça parlera de réussite, d’échecs, de domaines publics, privées, bref tout ce qui peut attendre les futurs docteurs.

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Cécile et Benjamin sont deux jeunes chercheurs en postdoc qui souhaitent documenter les expériences personnelles et professionnelles des personnes diplômées d’un doctorat. L’objectif de ce podcast est d’apporter la lumière sur la myriade de possibilités qu’il existe après avoir réaliser une thèse af…

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‪PhD‬ - ‪‪Cité(e) 81 fois‬‬ - ‪(Paleo)Ecology & Environmental Sciences‬ - ‪Plant-Insect interaction‬

Postdoc at @naturhistoriska🇸🇪 ; collab. @imbe_marseille 🇫🇷 | (Paleo)Ecology & Envmt Sciences; Plant-Insect interactions 🍃🐛 | Photo📸 | 🎙️ @apreslathese

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An ecosystem is a community of organisms living together in an environment in which they interact, and where living beings interact with each other. If in ecological studies every type of parameter can be measured, in paleontology, the analysis and understanding of past ecosystems stop at the characterization of species and the indirect interpretation of their interaction with the environment. Direct interactions between organisms are completely concealed. Since the early twentieth century, the innovative field of ancient plant-insect interaction has flourished and has been gathered around a common guide for identifying the plant-insect association that can be directly observed in plant tissues. With numerous palaeobotanical collections stored in museums around the world, the discipline has accumulated a large amount of data but has been restricted to discussions stuck in deep-time.On the contrary, while real-time ecological studies have long had access to a wide variety of data supported by accurate measurements, their conclusions mostly ignore the deep-time dynamics. Nowadays this discipline throughout time faces interesting asymmetries, even paradoxes, in its own conclusions because of their respective boundaries. Questions remain: Are the interpretations studied in paleoecology sufficient to explain patterns observed in real-time and vice-versa? Can ecology afford to ignore deep-time changes, and vice-versa?The purpose of this special volume is to gather paleo and pres...

Changes in Plant-Herbivore Interactions Across Time Scales: Bridging Paleoecology and Contemporary Ecology

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Hey everyone, I'm Phd in Paleoecology and Environmental sciences from the University of Bonn (Germany) and Montpellier (France). I'm right now working at the National Museum of Natural History of Sweden in Stockholm. For now I'm mostly worked on plant-insect interactions that we can observe on fossil leaves. I'm currently working on changes to Mediterranean ecosystems (in the Mediterranean basin currently). Due to the limitations of fossil records regarding plant-insect interactions, I decided to delve deeper into modern leaves. It is crucial that the method* used in paleoecology - to identify insect feeding traces - has to be 'calibrated' on modern leaf records. This will increase our knowledge and enable constructive ecological conversations.  The past two decades of paleo-studies have highlighted the potential and richness of information that can be observed on fossil leaves in terms of plant-insect interactions. Now, these information must be related to modern ecological knowledge by developing studies between paleo and modern. That is my goal today.  -&gt; I'm here because I want to highlight observations that I do in my different fieldwork and provide as many as possible of interesting data. I'm convinced that such exchanges and shares of information can bring to amazing work and even collaborations.  -&gt; I'm also here because even if I can see, recognize, 'identify' plant-insect interactions on leaves, I still cannot named them, and I'm quite limited in terms of entomology knowledges that could explain the reasons of the presence of a gall on a plant species and/or a specific location.  I hope I can work and discuss with you.  Here is my global leitmotif: Ecosystems are defined by the community of living organisms and the way they interact with each other and with their environment. Insects and plants are key taxa in terrestrial ecosystems and their networks determine the trophic structure of environments. However, the factors that determine these interactions are not well understood. My research focuses on the use of plant-insect interactions as an indicator of ecosystem changes over time. I observe the traces of herbivory directly on fossil and modern leaves using various methods based on damage morphology, leaf anatomy, their chemical signatures, etc.  *Method for plant-insect interactions identification in the fossil record:  Labandeira CC, Wilf P, Johnson KR, Marsh F. 2007. Guide to Insect (and Other) Damage Types on Compressed Plant Fossils.Washington, DC: Smithsonian Inst. Version 3.0—Spring 2007

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Cécile et Benjamin sont deux jeunes chercheurs en postdoc qui souhaitent documenter les expériences personnelles et professionnelles des personnes diplômées ...