Functional diversity of Azorean bryophytes

Two recent publications from the PhD student, Déborah Henriques (University of Azores) on functional trait diversity along an elevational gradient and the presentation of the BRYOTRAIT-AZO, the first open access bryophyte database for traits. We wish to provide similar databases for the other studied archipelagos from the MOVECLIM project (Net Biome).

Henriques, D.S.G., Rigal F., Borges, P.A.V., Ah-Peng C. & Gabriel R. (2017). Functional diversity and composition of bryophyte water-related traits in Azorean native vegetation Plant Ecology and Diversity (http://www.tandfonline.com/eprint/KkJvv3GvUWAQMCQheGnA/full)

Henriques D., C. Ah-Peng & R. Gabriel (2017). Structure of the database BRYOTRAIT-AZO, a trait database for Azorean bryophytes Cryptogamie bryologie 38(2) :137-152

The role of epiphytic bryophytes in interception, storage, and the regulated release of atmospheric moisture in a tropical montane cloud forest

New article out !

Highlights


  • Investigation of cloud water interception in a tropical montane cloud forest.
  • Forest ecohydrological functioning investigated using two liverwort species.
  • Novel approach using lysimeters to quantify cloud water flux through bryophytes.
  • Species intercept cloud water efficiently, but differ in water-holding capacity and flux.
  • Differences in CWI related to plant architecture as well as microhabitat.

Lire la suite

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

 

 

 

Bryophytes of Kenya's coastal forests - A guide to common species

Bryophytes of Kenya's coastal forests - A guide to common species
Authors : Wilding N., Hedderson T., Ah-Peng C & Malombe I.
Date: dec. 2016

Front page of the guideThis guide was produced in the framework of the Kenyan Coastal forest project funded by the Indian Ocean Commission (FED/20015/358-516-SVC-101). This field guide presents 20 species of bryophytes (12 mosses and 8 liverworts) commonly encountered in Kenya's coastal forest region. Each species is accompanied by high quality images and easy to understand descriptions. A glossary of terms is provided as well as further reading and references on African bryophytes. Lire la suite

Contrasting predation services of predator and omnivore diversity mediated by invasive ants in a tropical agroecosystem

New article published in Basic & Applied Ecology :
http://dx.doi.org/10.1016/j.baae.2016.09.005

Abstract

cover_bae_s14391791Invasive natural enemies are known to either strengthen or weaken the suppression of herbivorous arthropods. However, the impact of invasive species on the predation service provided by natural enemy diversity remains largely unexplored. Here, we tease apart the roles of invasive ants as providers of a predation service and a potential disservice, i.e. reducing the diversity of natural enemies. In mango orchards on Reunion Island, we evaluated the predation service in 20 open fields by simultaneously monitoring the predation on bait eggs and arthropod communities in two strata: the ground surface and the mango tree canopy. Lire la suite

Ecole thématique sur les invasions biologiques, 17-19/10/2016

p1130588
Description synthétique de l'action

Organisateurs / cofinanceurs
: Université de La Réunion, Université de Stellenbosch CIB, Parc National de La Réunion, DEAL, CIRAD, UICN international.

Comité d'organisation : D. Strasberg, C. Julliot, C. Ah Peng, C. Cybèle, F. Chiroleu

Logistique: Audrey Valery, Even&Sciences

Lire la suite

Visit of Esther Baumann / project ECOPOTENTIAL

E. Baumann is a Master'student (M2) from the University Of Bayreuth supervised by Pr. Carl Beierkunhlein and visiting the island to acheive the fieldwork of her project. She describes her experience.

On the 10th of August I arrived on the Island of La Reunion to conduct the fieldwork for my Master Thesis, which is embedded in the ECOPOTENTIAL project (H2020). The study aims at detecting patterns in leaf coloration along an elevational gradient in the subalpine shrublands of La Réunion island.

Beyond that aim, stands the concept that the elevational gradient is considered as a proxy for changing environmental conditions, as e.g. increased UV-radiation and increased wind speeds.

Lire la suite

The tale of Gastrodia similis, a terrestrial endemic orchid in La Réunion

Once established, second-growth forests dominated by alien plants may provide suitable environmental conditions for the maintenance of populations of some rare native species, and thus should not be neglected in conservation studies.

treve_photo3

Pix: Gastrodia similis in the forest of Mare longue (credit: F. Martos)

We illustrate the case of Gastrodia similis Bosser, a small terrestrial orchid endemic to the lowland rainforest of Reunion island. Despite some very specific ecological requirements (necessary mycorrhizal symbiosis with wood-decay fungi and pollination by specialized drosophilid flies), the populations of this rare species are spreading beneath some secondary forests growing at low altitude, extending northward the species geographical distribution. Other native species might also restore populations in this place. We call for more biodiversity assessments and experimental trials in these hybrid ecosystems.

Augros S. & Martos F. (2016). Nouvelles observations de Gastrodia similis Bosser dans le Nord de La Réunion et intérêt des écosystèmes hybrides pour la conservation de la biodiversité de l'île (Orchidaceae, Gastrodieae), Cahiers scientifiques de l'océan indien occidental 7:3-6