Chrono-Environments et Paléo-écologie (CEPAGE)

"General linear models with 1 or more random explanatory variables: from the translation of the figure that answers the biological question to the statistical model, i.e. taking into account numerous effects and knowing how to interpret them.

general properties seen through regression and 1-factor ANOVA (R2, F, ddl, least squares, likelihood, diagnosis, validation, goodness of fit, interpretation of effect sizes); nested and cross-factor ANOVA, multiple regression (notion of parameter and effects, and interaction)

incorporation of the dependence of explanatory random variables, confounding of effects (quantitative for multiple regression, and unbalanced designs for ANOVAs)".

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The general aim is to consolidate the ecological foundations acquired by students, and to give them the tools to mobilize them in an integrative way to interpret the functioning of ecological systems. The course includes: 1) lectures covering the concepts of ecology from population to macro-ecological scales, with examples of applications that place the discipline in the current ecological and societal context; 2) practical work and tutorials focusing on tools (sampling strategies, modelling, data analysis); 3) field courses in which students are invited to ask themselves relevant scientific questions based on observation in a given situation, and to mobilize their knowledge to answer them in a reasoned way.

Summary content of the EU :

- CM: History of the emergence of concepts in ecology; Population dynamics / metapopulations; Biotic interactions and food webs; Ecology of communities, meta-communities; Ecology of ecosystems / functional ecology; Notions of macroecology / biogeography; Global change and ecosystem functioning;

- Field: Integrative analysis of ecosystem functioning in real-life situations ;

- TD/TP: sampling and experimentation strategies in ecology; modeling in population/meta-population dynamics, community/meta-community ecology, food webs; biodiversity measurements (alpha, beta, etc.)."

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"The overall aim is to consolidate students' evolutionary biology foundations, covering both (i) macro-evolutionary phenomena, and the general methods used to analyze them, and (ii) micro-evolutionary processes, with an emphasis on the population genetics approach. The aim of this course is both to provide a common foundation of solid knowledge in evolutionary biology, and to illustrate the applications of the discipline to students' future fields of specialization. Teaching includes: 1) lectures on evolutionary concepts; 2) practical work in two main forms: 2a. sessions focusing on the use of tools (phylogeny) and on the mathematical formalization of evolutionary processes (population genetics), and 2b: sessions built around group work, enabling students, depending on their career path and professional objectives, to delve deeper into a particular theme (fundamental question or application of evolutionary biology)."

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English TD courses aimed at professional autonomy in the English language.

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Generalized linear mixed models + methodology and experimental protocols to take account of biological reality: non-normal distribution and pseudo-replication

Protocol optimization, power and uncontrolled 1st order risk: variable transformation, polynomial regression, link function, likelihood, model selection

Deviance analysis and goodness of fit

Incorporation of blocks, repeated measurements over time, consideration of spatial and temporal correlation, over-dispersion

Graphical representation of predictions.

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The aim of this course is to provide the statistical foundations needed to follow all the more advanced modules in the curriculum, so it's a general refresher. Descriptive statistics are reviewed (quantile, cumulative frequency polygon, sample estimators), simple tests are introduced, essential graphs for univariate and multivariate data are presented, the general principle of a statistical test, hypothesis design, the notion of p-value, first and second species risk are presented. In practical exercises, students are also brought up to speed in the R environment.

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Drawing on Ecology concepts and methods, this course aims to introduce students to historical ecology (the study of interactions between man and his environment over variable chronological periods) and its main applications in paleoecology and environmental science: climate change, biodiversity fluctuations, vegetation transformation, forest dynamics, disturbance ecology, bioarchaeology, etc. ORPAL is an APP course (1/3 fieldwork and 2/3 laboratory work). Work is carried out in pairs or trios, under the responsibility of a supervisor, and covers the entire research process, from defining the problem, field sampling and data acquisition to interpretation, writing a scientific article (see https://biologie-ecologie.com/exemples-travaux/) and oral presentation of results. ORPAM takes place during the first weeks of teaching. It begins with a 3-day field school (24h - integration internship) and continues with a mini-laboratory internship (24h). The course ends with the writing of a popular scientific article and an oral presentation of the results.

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The objectives of this EU are twofold. On the one hand, the aim is to review all the major stages in the history of organisms on Earth since its birth. Topics such as the appearance of life, the colonization of continents, the appearance of angiosperms, glacial/interglacial cycles and the domestication of plants will be covered. On the other hand, the aim is to show how paleoecology is part of the modern world, whether in terms of methodological developments (geochemistry, optical, electron and X-ray microscopy, etc.), predictive models for climate change, ecosystem management in the context of global change, or biotechnological developments. The course will be organized as a series of lectures, each given by a specialist in the subject concerned.

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The individual M1 internship lasts around three months, and must be carried out in a research laboratory or a non-academic structure, depending on the course concerned. It enables students to gain professional experience in the field of biodiversity, evolution or ecology. It can be carried out in a local, national or international structure, on a subject validated by the teaching staff to fit in with the objectives of the course followed by the student.

Evaluation : The preparation of the internship is a graded exercise based on a written document and a presentation of the internship project. The internship work is assessed at a public presentation before a jury, during which the content of the dissertation and the quality of the answers to the jury's questions are evaluated. The student's behavior and dynamism during the internship are assessed by the internship supervisor.

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A teaching unit designed to link theoretical ecology, its operational implementation and territorial issues as seen by society's stakeholders. Based on a format combining theoretical lectures with a reminder of the elements needed to understand issues in the field (ecosystem dynamics, anthropization, socio-ecosystem resilience, in situ conservation, etc.), this unit comprises several field blocks (each consisting of a preparatory TD/TP and an "active" field trip). The territories visited will provide an opportunity to meet social players (managers, elected representatives, associations, shepherds, etc.) whose position enables us to understand how ecological issues govern their actions, and how in turn their actions impact biodiversity, its dynamics and its distribution.

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How is biodiversity distributed on Earth? What ecological, evolutionary and historical factors determine these patterns of biodiversity distribution? What changes have human activities brought about in the global distribution of biodiversity? In this course, we will study the role of spatio-temporal variations in the global environment on biodiversity dynamics. In particular, we will examine the influence of long-term climatic cycles on the past and present diversity of organisms. We will also look at the impact of human activities and global change on biodiversity on a planetary scale.

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"This module introduces table management and the link between multivariate and univariate: matrix manipulation and common operations; notion of projection and distance; translation of descriptive and univariate statistics with multiple regression/ACP/AFD as an example; indices of (dis)similarity, distance; correlation".

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"The aim of this course is to consolidate students' grounding in ecology and/or evolution by inviting them to define a research topic and question(s), by defining relevant hypotheses in a well-argued manner, and by justifying a strategy for acquiring and analyzing the data needed to test them.

Synthetic content of the EU:

- Independent tutored work: identification of a relevant scientific question; bibliographical synthesis to establish the state of the art and justify scientific hypotheses; proposal and justification of a methodological approach (materials and methods) to test the proposed hypotheses.

Type of subject:

The topics can be based on any question identified by the students (in groups of 3/4), and validated by the teaching team, and draw on different approaches to suit the expectations of the different courses. For example, students may propose a field or experimental sampling strategy, a meta-analysis of literature data, an analysis of sequences retrieved from GenBank, an analysis of occurrence data retrieved from GBIF, etc.

In all cases, projects must involve a genuine data acquisition strategy, identified, justified and described by the students in the materials and methods requested in M1S2, with a provisional timetable for the project's progress and identification of the tasks that each student will carry out within each group as part of the project's implementation in M2S3. Projects must also be financially realistic, with a provisional budget, and must be able to be finalized within the time available in M2S3.

Assessment of knowledge:

Teaching is based on a problem-based learning approach, and students are assessed on how they progress in constructing their approach (40% of CC), as well as on their ability to present and defend their project at a final oral (60% of the overall mark)."

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The aim of this course is to implement the projects defined in the M1S2 project course.

Synthetic content of the EU:

- Independent tutored work by student groups: readjustment of project objectives and methodology if necessary, data acquisition, ecological and/or evolutionary analyses and interpretations according to the provisional timetable defined in M1S2, presentation of results at a symposium common to the different courses.

Assessment of knowledge:

As with the M1 Project UE, this UE is based on a problem-based learning approach. Students are therefore assessed as they go along on how they are progressing with their project (40% CC), then at the end of the semester on their ability to present and discuss the results of their project in an oral presentation at a general feedback conference (60% of the overall mark).

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This UE covers the analysis of man's impact on the climate and the environment.

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Present different methodological approaches in an applied approach, from data acquisition to interpretation. Each approach is covered over half a day (3h), covering data acquisition methods (1.5h TP) and interpretation of results (1.5h TD).

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"The aim of this UE is to present and explain the concepts, issues, operational approach in the field and laboratory, methodological and analytical strategies for inferring and reconstructing fluctuations in wild biodiversity and biodiversity exploited by man over time. It draws on empirical and modelled ecological, palaeoecological, palaeobiogeographical, archaeobiological, archaeological and palethnobiological data. Particular attention will be paid to :

- the functional role of ecological disturbances such as fires in the transformation of plant cover;

- the impact of human evolution on the dynamics of forest ecosystems;

- the exploitation, cultivation / breeding and domestication of plants and animals based on the study of modern and bioarchaeological data. "

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The aim of this course is to help students build their career plans and find internships, while beginning to prepare for their integration into professional life through a comprehensive and personal vision of possible career paths.

In concrete terms, a series of meetings with various participants introduces the doctoral thesis (presentation of the GAIA doctoral school, presentations by thesis students) and the professional environment targeted by the different career paths (research careers and the non-academic sector). Activities specific to each pathway then enable students to better target the scientific fields most closely aligned with their career plans. Finally, TD sessions are designed to prepare students to write scientific articles in English.

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In this course, we'll look at the main theoretical concepts of evolutionary processes through the fossil record. The aim is to reconcile microevolutionary mechanisms with macroevolution. Concepts covered include: species and intraspecific variability, speciation and evolutionary rhythms, adaptive radiation (ecological speciation) in the fossil record, targeted extinctions (migrant-autochthonous competition) or mass extinctions (major biological crises), evolutionary modalities (anagenesis and saltationism) observed in the fossil record, and a comprehensive review of microevolutionary mechanisms.

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The aim of this resolutely trans-disciplinary course is to provide the skills needed to effectively manage and exploit data of various origins and types, particularly those with a spatial component. The course is divided into three complementary sections. The first deals with the issues inherent in data compilation and the solutions provided by database management systems (DBMS): from database design to queries. The second covers geographic information systems (GIS): from cartographic representation to geoprocessing. Finally, the third axis presents the diversity of spatial analysis tools for quantitative exploitation of spatial data, from metrics to statistical tests.

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The pedagogical objective of this course is to reposition the main soil types on a global scale, explain their formation and identify the main mineral phases or abiotic factors likely to regulate soil biological activity. Based on this analysis, the different soil organisms (micro-organisms, micro-, meso- and macro-fauna) and their relationships will be presented in order to reposition the cycle of organic matter and mineral elements in the soil on different temporal and spatial scales. The notions of recycling, looping of biogeochemical cycles and community assembly rules will also be addressed. This course is organized around lectures and conferences, as well as fieldwork and practical work.

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"The aim is to analyze the phylogenetic, developmental and functional constraints likely to have governed the morphological changes perceptible in the fossil record. The phylogenetic approach will be approached using reconstruction methods applicable to fossils (parsimony; cladistic analysis). Developmental and functional approaches (mainly odontology) will be illustrated by different methodologies developed on the Montpellier campus (notably X-ray microtomography). The critical review of reference articles in the field in question will give rise to an oral presentation followed by questions."

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Land-use changes are responsible for around 10% of anthropogenic carbon dioxide emissions. Tropical forest ecosystems can play a part in both the mitigation and adaptation aspects of global warming:

-Tropical forests and plantations are important potential carbon sinks, and their biomass can provide energy to replace fossil fuels, while reducing deforestation and forest degradation and improving forest management (REDD+) can significantly reduce anthropogenic GHG emissions.

-The ability of human societies, still essentially rural, to adapt to climate change depends in part on the state of available natural resources, while the necessary adaptation of tropical ecosystems to climate change can be facilitated by human intervention.

In the context of the implementation of the United Nations Framework Convention on Climate Change, mechanisms such as the Sustainable Development Mechanism (SDM) and REDD+, and voluntary markets, as well as ecosystem-based adaptation to climate change, provide a new outlet for tropical forestry, as well as a potential lever for tropical forest protection or restoration. The module provides an understanding of the basic concepts of climate change, the role of tropical ecosystems in the global carbon cycle, and the technical, political and economic responses to the challenges of climate change.

Module content :

This module provides basic knowledge on topics such as the carbon cycle, the mechanisms and consequences of climate change, and the technical and political mechanisms for mitigating and adapting to this change. The potential of tropical agroecosystems is assessed on the basis of scientific studies and existing operational projects.

Teaching and learning methods :

-Course (18 hours)

-TD (3 hours).

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1. Bayesian inference: Motivation and simple example. 

2. The likelihood. 

3. A detour to explore priors. 

4. Markov chains Monte Carlo methods (MCMC)

5. Bayesian analyses in R with the Jags software.  

6. Contrast scientific hypotheses with model selection (WAIC).

7. Heterogeneity and multilevel models (aka mixed models. 

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1 "The way in which the modern West represents nature is the least shared thing in the world" (Descola, 2005, p. 56). According to anthropologist Philippe Descola, the category of "Nature", as a reality separate from the human world, was invented by Europeans, and is just one of the ways in which societies can account for the living and non-living beings that surround them.

While Philippe Descola is helping to renew questions concerning the relationship between society and the environment, he is also drawing on a long tradition in the human and social sciences. Numerous works have already explored the various forms of knowledge and social organization to which these relationships give rise: ethnoscience, anthropology of technology, economic anthropology, ethnoecology, sociology of science and technology, and so on.

This issue is far from being confined to the academic sphere. It is also of interest to those involved in conservation (biodiversity, natural resources, etc.) and industry (pharmacology). It is also mobilizing so-called "indigenous" populations who are demanding, both locally and internationally, access to resources and the preservation of an intangible heritage.

2. Situated at the crossroads of social sciences and life sciences, these disciplines analyze how human societies use plants, animals and other environmental components, and how their conceptions and representations of their environment(s) shape these uses. This research also explores how human societies organize themselves, perpetuate themselves, change to adapt to new contexts (globalization, global change) and transmit knowledge about their relationships with nature.

For a long time, these disciplines focused more specifically on the interrelations between so-called "traditional" societies and their immediate environment. Then, from the 1970s onwards, researchers reconsidered the distinction between "traditional" and "modern" societies, to better address the new environmental and social transformations taking place today.

On the one hand, even the most isolated local societies are affected by events that are decided and unfolding on different scales (international conventions, economic crises). Their immediate environment is also affected by global phenomena (climate change, erosion of biodiversity, etc.). In return, their actions can also have international ecological, social and economic repercussions, when, for example, these companies organize to bring their demands to international arenas.

On the other hand, the relationship that modern societies have with their environment is being reconfigured in the face of an increasingly "artificialized" planet threatened by serious disruptions and crises. The place of flora and fauna is being reconsidered, and their rights are the subject of controversy. Moreover, the entry into a new geological era, the Anthropocene, is being used to call on both the natural sciences and the human and social sciences to take a fresh look at the shared history of the environment and society.

3. The very work of scientists and engineers is apprehended in a new light. A new scientific project in the humanities and social sciences aims to reconsider the role of "non-humans", and calls for analytical categories other than Nature and Culture. New scales and methods of investigation are also envisaged to analyze global processes.

These recent changes in scale invite researchers in the humanities and social sciences to (re)consider their approach through a reflexive lens: they are no longer mere observers, but can also be genuine actors in processes, when they are not directly involved in a social movement.

4. The aim of this module is to introduce these different scientific and operational fields. The aim is to provide students with benchmarks and food for thought, enabling them to construct scientific questions on the relationship between society and the environment, and to reflect on the ways in which current environmental and social issues can be tackled. The speakers' varied geographical and disciplinary backgrounds will illustrate the approach across a wide range of ecosystem types, socio-cultural contexts and themes. In the time available, we cannot claim to cover all the themes, approaches and methods exhaustively. Any student wishing to delve deeper into this field will need to take a more in-depth training course.

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The aim of this course is to help students finalize their professional projects and prepare for the post-master's period.

The UE is organized on a pathway-wide basis, with regular discussion sessions between the teaching team and students.

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The individual M2 internship lasts approximately 5 to 6 months, and must be carried out in a research laboratory or a non-academic structure, depending on the course. It enables students to gain in-depth professional experience in the field of biodiversity, evolution or ecology. It can be carried out in a local, national or international structure, on a subject validated by the teaching team to fit in with the objectives of the course followed by the student.

Evaluation: The internship is evaluated at a public presentation before a jury, during which the content of the thesis and the quality of the answers to the jury's questions are assessed. The student's behavior and dynamism during the internship are evaluated by the internship supervisor.

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