L'UMR PVBMT recrute des entomologistes

Dans le cadre du projet FEDER DIVINES (Suivi de la biodiversité et Innovation pour l’acquisition des connaissances des EcoSystèmes naturels du bien classé patrimoine mondial à La Réunion), notre équipe recrute pour  24 mois deux entomologistes:

Un assistant ingénieur et un ingénieur de recherches à temps partiel 70%.

Veuillez contacter dominique.strasberg@univ-reunion.fr pour plus d'informations.

Date limite de candidature: 11 avril 2017

Les fiches de poste sont à ces liens:

IGR entomo

ASI entomologiste

 

 

 

Inventaire de Mare Longue (suite suite)

During the month of August, 2 Master students Sébastien Albert and Sohan Sauroy-Toucouère finished the measurements of the dbh of the trees.
Trunks were measured for woody plants > 4 cm diameter at breast height (dbh) in the one hectare plot in the forest of Mare Longue around 300 m above sea level.

sohan
Pix: Left, Sohan and Asplenium nidus var. nidus in the understorey. No day without rain during three weeks in the tropical rain forest, but no drop of rain mitigated our enthusiasm.

Dominance-diversity distribution for trees (dbh > 8 cm) was compared between 2005 and 2016 (Fig.1). With 36 species in 2016, 4 species have disappeared from the plot since 2005 : Pittosporum senacia, Cyathea excelsa, Memecylon confusum and the endangered Ochrosia borbonica.
The three most common species represent more than half of total trees. Labourdonnaisia calophylloides is more numerous in 2016 (362) than in 2005 (335). At the same time, Antirhea borbonica lost 40 trees, and this trend is stronger if we considered dbh > 4 cm (Fig.2). This species is the one which lost the most of stems (140) between 2005 and 2016, the second one is Chassalia corallioides which lost 69 stems. The important death-rate of the heliophilous species Antirhea borbonica is likely due to the canopy closure, while the shrub Chassalia corallioides shows a very important turnover with plenty of seedlings in the understorey.

Diapositive1

Concours C Génial - Sciences à l'école

La classe de 5ème 506 du collège Terrain Fayard a participé au concours C.génial avec son projet "Vegetal Foam Réunion", dont le résumé est ci-dessous, avec le soutien scientifique de C. Ah-Peng.

"La mousse est une plante de petite taille, qui se trouve dans toutes les régions du monde. C'est un végétal qui n'a pas de racines, ni de vaisseaux. On appelle cela une bryophyte. Nous allons, à travers notre projet «Vegetal Foam Réunion», montrer comment sensibiliser le public à l'utilisation de la mousse végétale dans la vie courante Lire la suite

EROVEG : interactions between rainfall erosion and vegetation

We are now starting a new collaborative project with geologists and climatologists to study the relationships between erosion, precipitation regimes, and vegetation in the context of La Réunion island. Due to its size, very heterogeneous landscapes and, above all, its high elevation (~ 3070 m a.s.l, Piton des Neiges), the island receives massive amounts of rainfall each year and posseses several World records. But prepicipations regimes are diverse on the island and likely to change in the future in response to global changes.
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Island Biology conference July 2016

The first Island Biology conference was hosted in Hawaii. The second conference will be happening in the Azores. Attendance at this conference is a must for any island biologist!

The “Island Biology 2016” (18-22 July 2016, University of Azores at Angra do Heroísmo, Terceira, Azores) conference webpage is: http://www.islandbiology2016.uac.pt/

Visit the webpage and register as soon as possible a Pre-Registration at http://www.islandbiology2016.uac.pt/#page3
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Séminaire «Biodiversité»

feder_biodiversite_1429686250_25Le séminaire de restitution du programme FEDER «Biodiversité» aura lieu du 2 au 5 juin 2015 sur le campus du Moufia de l'Université de La Réunion.

Voir le site du séminaire : https://about.me/feder_biodiversite

Population structure in the tropical peat moss, Sphagnum tumidulum Besch. (Sphagnaceae)

Abstract

Route de BebourSphagnum and Sphagnum-dominated peatlands have long provided a model for analyses of community structure, and recent work has elucidated the genetic structure of various Sphagnum species in the boreal zone. We report here analyses of genetic variation and population differentiation in a tropical species, S. tumidulum, from Réunion Island. Lire la suite