[Mitarbeiter.zoologie] Fwd: [MEMBERS] NEXT WEEK: Roxibell C. Pelayo and Rafael Pinheiro at the seminar series

[Robert Paxton]

Dear All,

For information.

Robert


> Begin forwarded message:
> 
> From: "Reiche, Anne" <anne.reiche at idiv.de>
> Subject: [MEMBERS] NEXT WEEK: Roxibell C. Pelayo and Rafael Pinheiro at the seminar series
> Date: 13 January 2023 at 14:43:19 CET
> To: "all at idiv.de" <all at idiv.de>, "members at idiv.de" <members at idiv.de>, "assoc.members at idiv.de" <assoc.members at idiv.de>, "seminar at idiv.de" <seminar at idiv.de>
> 
> Dear all,
> Next week, we are looking forward to Roxibell C. Pelayo <https://www.researchgate.net/profile/Roxibell-Pelayo-2> and Rafael Pinheiro <https://rbppinheiro.wordpress.com/> at the seminar series.
> 
> Wednesday, 18 January 2023 at 1 pm
> iDiv Core Centre – Red Queen
> Link for remote participation:
> 
> https://uni-leipzig.zoom.us/j/69177272174?pwd=YnJFUEtXbERvb3VCRjVWNGs0VW5Kdz09
> Meeting-ID: 691 7727 2174
> Password: 454864
>  
> Roxibell C. Pelayo
> Title: "Plan-Pollinators systems from Neotropical high ecosystems"
> Abstract: Tropical mountains are hotspots with high endemism and biodiversity. Most alpine flower-plants in temperate and tropical mountains depend on animals for pollination, in this places pollinator’s diversity is generally low compared with lowland diversity, the ratio of pollinator/plant abundance decreases with elevation, while generalist and specialized systems coexist. The plant reproductive ecology and plant-animal interactions are considered variables very sensitive to be affected by climatic changes, especially in the tropical mountain ecosystems where this interactions has received substantially less attention. In the Tropical Mountain from Venezuela we have been studied plant-pollinator systems and plant-pollinator networks in mature ecosystem and glacier retreat areas with a primary succession. These systems could be very sensitive to the loss of species because of their low nestedness, high levels of specialisation, endemism and functional complementarity. Actually, we have summits in an elevational gradient (4200-4600 m) for long time monitoring of flowering phenology and plant-pollinator networks.
>  
>  
> Rafael Pinheiro
> Title: "Simple and compound topologies in species interaction networks"
> Abstract: Nestedness and modularity have been found in many species interaction networks. Despite being conceptually distinct, negatively correlated and having different causes, these patterns often co-occur. A realistic but seldom investigated alternative to these simple topologies is hierarchical compound networks, in which the entire network is modular, and modules are internally nested. In a series of studies we developed an extended methodological and conceptual framework to study network topology, discovered that hierarchical compound topologies are widespread among networks of different interaction kinds and exemplified how it may reveal underlying mechanims and affect the stability of species interaction networks. Compound topologies improve the depiction of ecological networks and differentiate ecological and evolutionary processes that operate at different hierarchical levels, with the potential to advance our understanding of network dynamics, stability and response to species loss or change.
>  
>  
>  
> Best wishes and have a nice weekend,
>  
> Anne
>  
>  
> Anne Reiche
> Administrative Assistant
> German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
>  
> Phone: +49 341 97 33103
> Room: A.01.05
> Email: anne.reiche at idiv.de <mailto:anne.reiche at idiv.de>
> Website: www.idiv.de <http://www.idiv.de/>
>  
> Postal address:
> German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig
> Puschstrasse 4
> 04103 Leipzig, Germany
>  
> iDiv is a research centre of the DFG – Deutsche Forschungsgemeinschaft
>  
> iDiv is a central facility of Leipzig University within the meaning of Section 92 (1) of the Act on Academic Freedom in Higher Education in Saxony (“Sächsisches Hochschulfreiheitsgesetz, SächsHSFG”). It is run together with the Martin Luther University Halle-Wittenberg and the Friedrich Schiller University Jena, as well as in cooperation with the Helmholtz Centre for Environmental Research – UFZ.
> The following non-university research institutions are involved as cooperation partners: the Helmholtz Centre for Environmental Research (UFZ), the Max Planck Institute for Biogeochemistry (MPI BGC), the Max Planck Institute for Chemical Ecology (MPI CE), the Max Planck Institute for Evolutionary Anthropology (MPI EVA), the Leibniz Institute DSMZ–German Collection of Microorganisms and Cell Cultures, the Leibniz Institute of Plant Biochemistry (IPB), the Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) and the Leibniz Institute Senckenberg Museum of Natural History Görlitz (SMNG).
>  
> USt-IdNr. DE 141510383
>  
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