Curso “Frugivoria e dispersão de sementes”, 2016

Palmito_collage

Frugivory and Seed Dispersal Course (Portuguese/Spanish) – 7-11 March 2016

Registrations: 4 Créditos – 01 a 12/02/2016.

@UNESP_PG_EcoBio with @mauro_galetti @pedro_jordano.

Part of the Programa de Pós-Graduação em Ecologia e Biodiversidade. UNESP, Rio Claro.

Fotos: Marina Cortes, Guto Balieiro, Lindolfo Souto, Pedro Jordano.

Long-distance dispersal events

The long and short of it

Back from the very interesting workshop organized in Madrid by Juanjo Robledo-Arnuncio. We focussed on long-distance dispersal events (LDD) and their importance to understand the potential responses to climate change. Changes in the environment will force adaptations or long-distance migration and range expansion in plants. Thus a key question is, are the LDD services provided by animal frugivores potentially allowing this environmental tracking.
We have been advancing a lot in understanding the local, stand-level patterns of dispersal and their consequences. Yet there are numerous conceptual and methodological challenges to understand migration among patches or fragments. LDD events > 500 km will be extremely difficult to assess in a robust way with current techniques, given the tremendous logistic challenge of sampling all the potential available pollen and seed sources. However, LDD events @100 km scale are probably affordable to estimate with a combination of mechanistic models (i.e., relying on high-precision satellite tracking of animal movement combined with physiological models) and genetic tools. Large scale sequencing and cheaper DNA analysis will help to genotype massive amounts of samples and allow the identification of rare immigrants, even when migration rates are low. Some lasting conceptual challenges include the estimation of 2D dispersal kernels that accommodate the complex reality of natural landscapes and the complexities of animal movement, which is quite often markedly directional and anisotropous.

The program of this interesting and thought-provoking workshop is here:

Mini-symposium

Long distance dispersal (LDD): perspectives and new directions

December 2nd, 2010

Sala Javier Palacios
Centro de Investigación Forestal (CIFOR)
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
Ctra. de la Coruña km 7,5
Madrid

8h45 – 9h00. Introduction (Juanjo Robledo-Arnuncio)

9h00 – 10h00 Keynote Speaker: Prof. Ran Nathan (Univ. Jerusalem)
A movement ecology approach to study LDD of plants

10h00 – 10h50. Prof. Pedro Jordano (EBD-CSIC)
Frugivores, seeds and genes: tracking the LDD events and their consequences

10h50 – 11h20. Coffee break

11h20 – 12h10Dr. Frederic Bartumeus (CEAB-CSIC)
LDD: Seed curves, Skewness and Anomalous Diffusion

12h10 – 13h00. Prof. Miguel Ángel de Zavala (Univ. Alcalá)
Species distribution models and long-range dispersal

13h00 – 14h30. Lunch at INIA

14h30 – 15h20. Dr. Juanjo Robledo-Arnuncio (CIFOR-INIA)
Genetic estimation of LDD among plant populations

15h20 – 17h00. Open Discussion (+ coffee)

17h00. End of mini-symposium

Defaunation

Living in a defaunated world

Rodolfo Dirzo and Mauro Galetti have set up a symposium on the consequences of defaunation in tropical forests. The meeting is co-sponsored by The Center for Latin American Studies (CLAS) and the Department of Biology at Stanford University. The registration for poster presentations is still open.

Megafauna manuscript accepted!

New paper in PLoS One

We now have our manuscript on seed dispersal by extinct megafauna accepted in PLoS One. It should come to the light by the 5th March.
Guimarães Jr, P., Galetti, M. and Jordano, P. 2008. Seed dispersal anachronisms: rethinking the fruits extinct megafauna ate. PLoS ONE.

Brazil, again

Just arrived from Brazil

I’m just arrived from a trip to Brazil. This time Mauro is in Stanford university, so I was doing field work in Ilha de Cardoso ‘bem soazinho’, working with spatial patterns of recruitment in the palm Euterpe edulis, one of our favorite species there. In addition I went to Parque Estadual Carlos Botelho where I keep taking data on palmito regeneration. Briefly, I was aiming at characterizing the recruitment microhabitats of palmito in these two locations of Atlantic rainforest. I was using hemispherical photographs as well as direct measurements of site traits. In Cardoso I also worked with mapping of seedling, sapling, and adult spatial patterns.

Acorns

Acorns

I’ve started a collaboration with José María Gómez (Rocka) to study dispersal patterns of Quercus ilex acorns by jays Garrulus glandarius and mice Apodemus sylvaticus. We’ll be using microsatellite markers and our goal at this moment is just startup and select the markers and test them. For that we’ll be using samples of cached acorns for which Rocka has a good record of the foraging patterns of the jays and mice. The project is a 1-yr study and is integrated in a larger project carried out by Rocka and Geno Schupp.

Visit: Mauro

Mauro Galetti visiting Sevilla

Mauro Galetti is visiting us during March. We will be working on collaboration projects with fleshy fruits characteristics, specifically with Mata Atlantica species. We are also preparing the next frugivory and seed dispersal course in Brazil for next May-June. Our collaboration now has support from a bilateral agreement between Brazilian CNPq and Spanish CSIC. You can find more details about our shared interest in the web page.