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Bioécologie

Ecologie du paysage et agricultures biologiques...

30 Décembre 2012,

Publié par JMB

Le mode de production de l’agriculture biologique organise-t-il un espace spécifique ?
Produit-il des paysages particuliers ?
Y a-t-il un nouveau modèle paysager en devenir ?

Dans cette version courte qui donne un aperçu du film " Dessine-moi un paysage bio ", la dimension paysagère dans l'agriculture biologique est abordée à l'échelle du territoire par des exemples d'initiatives publiques agricoles régionalisées qui prennent en compte le développement de l'AB dans les politiques d'aménagement et de développement local.

Les finalités du film, à visée pédagogique, sont destinées à faire réfléchir par des exemples innovants et expérimentaux, sur les nouvelles perspectives qu’offrent les modes de productions biologiques à travers des actions mises en œuvre par des agriculteurs dans leur système de production, en utilisant le paysage comme outil de gestion agronomique.

Le paysage est abordé dans ce film tel que défini par la convention européenne du paysage qui dépasse la dimension esthétique.

 

 

Ci-dessous, la version longue de ce film :

 

 

 

2012 Olympus BioScapes Digital Imaging Competition!

30 Décembre 2012,

Publié par JMB

Thumbnail images of the Olympus BioScapes 2012 winnersare displayed in this gallery. In order to view a larger version of the images (or to play videos), please click on the individual thumbnails.


1st Place
Ralph Grimm

2nd Place
Arlene Wechezak

3rd Place
Igor Siwanowicz

4th Place
Christian Sardet and
Sharif Mirshak

5th Place
Rogelio Moreno Gill

6th Place
James Nicholson

7th Place
Christian Klämbt and
Imke Schmidt

8th Place
Edwin Lee

9th Place
Sahar Khodaverdi

10th Place
Charles Krebs


Les glaciers de l'Himalaya...Le projet ClacierWorks

25 Décembre 2012,

Publié par JMB

Le glacier Khumbu (Himalaya), au pied de l'Everest, comme vous ne l'avez jamais vu ! 

Une image de 2 milliards de pixels, constituée de plus de 400 photos, réalisée par David Breashers durant le printemps 2012.

D'autres photos sur le site GlacierWorks.

Utilisez votre souris pour naviguer dans cette image en très haute définition. Déplacez vous à droite et à gauche, en haut et en bas, et zoomez pour découvrir tous les détails.

 

We love NPR - this is so amazing!!! nprradiopictures: Photographer David Breashears of GlacierWorks was on All Things Considered Monday to talk about a new way of photographing the Himalayan region: By stitching together 400-plus images into one giant, zoomable, interactive image — or a “gigapan” containing more than a billion pixels. He and his team just sent us something even cooler that they’re currently working on: a Mount Everest you can explore, containing an estimated 3.8 billion pixels! Click through to explore Everest Photo Credit: David Breashears of GlacierWorks 


Four post-doc positions on diatoms molecular ecology

19 Décembre 2012,

Publié par JMB

Mariella Ferrante and Daniele Iudicone (Physical-biological coupling group, Laboratory of Ecology and Evolution of Plankton, Stazione Zoologica A. Dohrn, Naples, Italy) are looking for candidates to take part in a multidisciplinary study on diatoms molecular ecology which is going to start in early 2013.

Stazione Zoologica A. DohrnDiatoms, a major group of unicellular organisms in aquatic ecosystems, are generally associated with specific environmental conditions but the mechanisms that are at the base of diatoms adaptive solutions are not well understood yet. Similarly, traits regulating their population dynamics (e.g., life cycles, patchiness, cryptic speciation, internal regulative mechanisms) have been analysed only recently, and a significant effort is still needed to produce a synthetic view on this topic. Finally, the molecular repertoire of diatoms is still vastly unexplored and the potential exploitation of diatoms for several biotechnological applications has raised the interest in these ubiquitous unicellular organisms.

Research at SZN has long been devoted to the understanding of phytoplankton dynamics, with
particular focus on diatoms. We now plan to merge studies conducted so far and future projects in a unique integrative effort. This new research program will combine theoretical approaches with oceanographic, physiological and genomic studies to investigate the mechanisms that regulate the biology and diversity of diatoms. The study will include the exploration of a recently established, global-scale environmental, morphological and genomic data-base (TARA OCEANS)
 and it will serve to contribute to the scientific efforts of the Tara Oceans Consortium. The successful candidates will be based at SZN with frequent visits to the laboratories of collaborating institutions in EU and US.

Specifically, we search for:

One expert in molecular approaches (contact: mariella.ferrante@szn.it)
Two experts in statistics/bioinformatics (contact:
mariella.ferrante@szn.it, iudicone@szn.it)
One expert in theoretical population dynamics and/or evolutionary dynamics (contact:
iudicone@szn.it)

The initial appointment will be for one year, with the possibility of extension.

Starting: approximately between February and April 2013.

The positions are funded by national and EU Projects. After-taxes salary varies from 1450 Euro to 2000 Euro per month, depending on funding sources and research experience.

6 PhD Positions at the German Centre for Integrative Biodiversity Research - iDiv in Leipzig, Germany

18 Décembre 2012,

Publié par JMB

 

iDiv is one of the seven National Research Centres funded by the German Research Foundation (DFG). It is located in the city of Leipzig and jointly hosted by the Martin Luther University Halle-Wittenberg (MLU), the Friedrich Schiller University Jena (FSU), the University of Leipzig (UL), and the Helmholtz Centre for Environmental Research (UFZ). It is supported by the Max Planck Society, the Leibniz Association, the Klaus Tschira Foundation and the Free State of Saxony. One of the central missions of the German Centre for Integrative Biodiversity Research is the promotion of theory-driven synthesis and data-driven theory in biodiversity sciences. The concept of iDiv encompasses the detection of biodiversity, understanding its emergence, exploring its consequences for ecosystem functions and services, and developing strategies to safeguard biodiversity under global change.

Outstanding students of all nationalities are invited to apply for doctoral fellowships on:

  •   Importance of mutualistic interactions for current and future patterns of plant and bird diversity in the tropical Andes
  •   Ecological Modelling of Genetic Diversity in Plant Communities
  •   Apiculture and the pollinator decline: A model for pathogen driven biodiversity risks
  •   Mapping genetic and species diversity of pollinators to the ecosystem service of pollination across changing landscapes
  •   Accelerated Evolution in Chromosomal Rearrangements and Speciation in Lacertid Lizards
  •   Plant Physiology/Biospectroscopy


In the active research environment of iDiv, PhD students will be embedded in the Young Biodiversity Research Training Group (yDiv). Its goal is to educate a new generation of scientists in transdisciplinary biodiversity research, who will have gained expertise both in experimental as well as theoretical fields of research. Fellows will attend lectures and seminars on a broad range of topics in the field of biodiversity science and conduct their research in a modern, international and integrative working environment. The working language is English.
Each doctoral fellow receives individual supervision and mentoring and is guided in her/his research work by a PhD advisory committee.

Application: We promote a research environment free of gender bias. Severely disabled persons are encouraged to apply and are preferred in the case of equal suitability. Applicants should hold a MSc or equivalent degree in biology or a related discipline. Applications are in English and should be sent before January 18, 2013. A detailed description of each position and the respective application address can be found under  www.idiv-biodiversity.de

Naissance d'un iceberg...

14 Décembre 2012,

Publié par JMB

James Balog a immortalisé avec son équipe la plus grosse rupture d’un iceberg jamais filmé jusqu’à présent. Les images ont été enregistrées lors du tournage de Chasing Ice, un film destiné à mettre en lumière les manifestations et conséquences des changements climatiques sur la planète. Positionnée sur le glacier Ilulissat, au Groenland, l’équipe a assisté au détachement particulièrement impressionnant d’un iceberg grand de 7,4 kilomètres cubes.