mercredi 13 février 2019

OFFRE D'EMPLOI 2 MOIS Technicien(ne) en ornithologie de terrain

Poste de technicien(ne) en ornithologie de terrain

Durée : du 1 Avril au 30 Mai 2019. Possibilité d'étendre le contrat jusqu'au 15 Juin
 Missions :
    - Suivi de reproduction de mésanges charbonnières (voire bleues) en milieux urbain et forestier ("populations installées" en nichoirs)
    - Participation aux opérations de mesures morphologiques, prélèvements sanguins et baguage des poussins
    - Participation aux opérations de captures, mesures morphologiques, prélèvements sanguins et baguage des adultes
    - Participation au conditionnement (centrifugation puis congélation) et archivage des échantillons prélevés
    - Participation à l’archivage des données récoltées sur le terrain
Laboratoire d'affectation : Université de Bourgogne UMR CNRS BioGéoSciences
 Localisation des travaux de terrain : Dijon et agglomération, Forêt communale d'Auxonne (occasionnellement Besançon et Forêt domaniale de Chaux)
Rémunération : 1222.62 net/mois (Technicien catégorie B, indice majoré 321)
Compétences requises : Fort attrait pour le travail de terrain (expérience préalable souhaitée) et pour le travail en équipe; Esprit d'initiative; Être titulaire du permis B.
La maitrise d’outils de SIG et/ou de construction de base de données serait un plus.
 Date limite de dépôt des candidatures: 26 Février 2019  (lettre de motivation accompagnée d'un CV et des coordonnées de deux personnes pour référence)
Contacts et destinataires des candidatures : Bruno Faivre (bruno.faivre@u-bourgogne.fr -0380396206) et Aurélie Khimoun (aurelie.khimoun@u-bourgogne.fr - 0380396244)

lundi 11 février 2019

Graduate Research Assistant

Understanding nutrient partitioning and social competition to improve genomic selection for feed efficiency in dairy cattle 

Description:  We  seek  a  graduate  student  to  conduct  multidisciplinary  research  with  the  aim  of  improving  dairy  cattle production and animal welfare. The overall objective of the project is  to  improve  the  feed  efficiency  of  lactating  dairy  cows  through  biomarker-based assessments  of  nutrient  partitioning  and  sensor-based  appraisals  of  social  competition, while advancing a multi-state effort to implement genomic predictions for feed efficiency in U.S. dairy cattle.  The  student  will be  expected to  carry  out all aspects of the  experiments including primary data collection  on dairy cattle, video analysis, lab work, data  processing and statistical analysis, and manuscript preparation. The student will be co-advised by Drs. Kent Weigel  (animal genetics), Heather White (nutritional physiology), and Jennifer Van Os (animal welfare and behavior).
Desired qualifications and relevant experience:
  MSc with research experience in dairy science, animal science, or related field. (BSc with substantial independent research experience may be considered)
  Strong data organization and processing skills. Confidence with statistics, including ability to explore new techniques, is a necessity.
  Knowledge of and interest in U.S. dairy cattle production and management
  Experience in cattle handling, sample collection, lab work, and project management
How to apply: Enclose the following in an e-mail to Dr. Jennifer Van Os (jvanos@wisc.edu)
by March 15, 2019. Incomplete applications will not be reviewed.
1.  Statement of relevant experience, skills, and interests
2.  CV including research publication record (for unpublished work, please indicate status, e.g., submitted, in preparation, etc.)
3.  Transcript (unofficial OK)
4.  GRE scores (screenshot OK)
NOTE: Graduate admissions to the Department of Dairy Science are conducted on a rolling basis.
Candidates need not apply for admission to the UW graduate school until selected as a finalist.
The Department of Dairy Science and the UW-Madison College of Agricultural and Life Sciences are
committed to maintaining and growing a culture embracing diversity, inclusion, and equity. We believe these values are foundational elements of our  excellence and fundamental components of a positive, enriching learning and work environment for students, faculty, and staff.
https://dysci.wisc.edu/ 

PhD position - University of Tours (France) - Reproductive differentiation in termites




A PhD position is available for 3 years at the Insect Biology Research Institute (IRBI, University of Tours).

Reproductive differentiation in termites: study of the chemical signals and the behaviors involved

Context and challenges
The reproductive division of labor is the keystone of social organization in insect societies. Indeed, in these societies, few individuals monopolize reproduction, whereas the other colony members forego their own reproduction to perform the remaining tasks to maintain the colony. In termites, the access to reproduction is known to be controlled by the reproductives already present in the colony. Understanding how the reproductive differentiation occurred in termites and identifying the involved signals, are crucial questions to understand the evolution of social life and the ecological success of insect societies.

In this PhD project, we propose to study how the reproductives of termites control the access to the reproduction of the other colony members. Among the involved signals, several studies highlighted the major role played by the volatile chemical compounds. However, other signals have been neglected so far, like the peptides or the vibratory signals. Nevertheless, in confined and solid environment of the underground termite nests (galleries in wood and soil), the specific nature of these two signals could transport or code the information of these signals more efficiently compared to the volatile compounds. Therefore, their study could represent a major transition in our understanding of insect societies. We will focus on the study of these three signals which are: the volatile pheromones, the non-volatile peptidic compounds and the vibratory signals. (1) Several decades of scientific research revealed that insect communication is mainly mediated by volatile chemical compounds. Either in a complex mixture covering the cuticle or in a more specific chemical blend produced by specialized glands. Even if a new pheromone specific of the reproductives have just been described in the literature in termites, its function and its impact on the reproductives differentiation remain to be clarified. We propose to study this pheromone as well as its volatility and its transmission to the other colony members. (2) Despite a growing number of studies involving the role of the peptidic compounds in insect communication, studies on their implication in the control of the reproductive access are scarce. In a second part, we propose to study the non-volatile peptidic compounds which are more suitable for the underground termite life, because they can be deposited by contact on the substrates. (3) The reproductives differentiation could also be controlled by specific behaviors of the reproductives but also by the other non-reproductive members of the colony. In several species of termites, the behaviors using vibratory signals are omnipresent, however their exact functions on the reproductives differentiation need more experimental demonstrations. We will test how the signals will be pursued by the other non-reproductive members of the colony and their impact on reproductives differentiation and on their social interactions.

The model system, Reticulitermes flavipes, is a subterranean termite species present in France all around urban zones. It will be studied by joining chemical analyses and behavioral approaches. The signals, which some are under current investigation in the lab, will be tested alone or in combination. In order to validate the impacts of the studied signals on the reproductives differentiation, behavioral experiments will be processed by doing chemical stimulation and/or playback experiments. The PhD will be supported by two grants covering salary and experiments costs.


Required profile
Applicants must show interest in at least one research field of the project: behavioral ecology, evolutionary biology, entomology or chemical ecology. Knowledge in social insects, behavior, statistics (with R) and chemical analyses will be appreciated. A Master’s degree or equivalent is required.


Practical and salary
The Insect Biology Research Institute offers state-of-the-art equipment and expertise to study all aspects of insects biology, ranging from genomes to communities and covering research fields such as behavior, genomic, ecology, biochemistry and evolution. The laboratory is localized in Tours (1h from Paris), which is a historical town localized in the Unesco world heritage site of the Loire Valley Chateaux.


Applications
Please submit your application by email to Christophe Lucas (christophe.lucas@univ-tours.fr) including a cover letter with your research interests, a CV and contacts of two potential referees. Contact information: phone: +33 247-367-372; Website; address: IRBI, CNRS UMR7261, University of Tours, Av. Monge 37200 Tours, France.

>> Application deadline: April 1st, 2019
>> Starting date: September 2019