The BayCEER Colloquium is an interdisciplinary platform for students, scientists and interested citizens: Usually lectures are held weekly (during the lecture period) in the field of ecology and environmental sciences, which can then be discussed in plenary and in a relaxed atmosphere during the post-colloquium. You are welcome to bring your own lunch (brown bag lunch).

Programm Colloquium Summer 2024
(PDF) **** Mailing list subscription **** Guide for Speakers **** Guide for Hosts (PDF)

 

Scheduling upcoming semester and lecture archive BayCEER Kolloquium

Lecture series in Ecology and Environmental Research WS 2011/12

All lecture dates
Dr. Rainer Wirth
Department of Plant Ecology and Systematics, Universität Kaiserslautern (Homepage)
Thursday, 02.02.2012 17:00-18:30

Trophic disruptions and biotic homogenization in fragmented forests: Unveiling success and impact of a neotropical key herbivore (leaf-cutting ants)

An ever-increasing proportion of the forested landscape is converted to forest edges and fragments, yet the full extent of cascading effects on ecological processes and biodiversity persistence remains poorly understood. In a Brazilian-German research project, we explored this topic by asking how anthropogenic landscape alterations impact ecosystem engineers and modify their functional significance.

As a model system, we studied leaf-cutting ants (LCA), which turned hyper-abundant due to high levels of forest fragmentation across the Neotropics. I compile quantitative results on (1) the mechanisms driving LCA proliferation and (2) the manifold impacts leaf-cutting ants LCA exert on forest structure, microclimate, edaphic conditions, plant performance, and floristic and functional signature of plant assemblages.

In synthesis, we found that ecosystem engineering by LCAs is strongly context-dependent: While in undisturbed forests regional habitat diversity is enhanced through the creation of high-resource patches, anthropogenic forest transformation (i.e. high-light environments with dominance of light-demanding species) causes synergistic feedback mechanisms turning LCAs into a large-scale disturbance that promotes floristic and functional impoverishment of modern forests.

 

 


Eingeladen durch Bettina Engelbrecht

 

 

 



More information:Export as iCal: Export iCal
Upcoming ...


BayCEER Colloquium:
Th. 2024-04-25
Perspectives and challenges in the restoration and conservation of two isolated habitats: gypsum and cliffs
BayCEER Short Courses:
We. 2024-04-24
Mobile Film Making Workshop (for PhDs/PostDosc/Profs of BayCEER)
Fr. 2024-04-26
Mobile Film Making Workshop (for students of BayCEER)
Ecological-Botanical Garden:
Su. 2024-04-21 now
Führung | Den ÖBG kennenlernen: Allgemeine Gartenführung
Fr. 2024-04-26
Aktion | Kräuterreich & regional: Backkunst im ÖBG (zus. mit HWK)
Weather research site
Luftdruck (356m): 972.0 hPa
Lufttemperatur: 0.2 °C
Niederschlag: 10.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 5.4 km/h
Wind (Max.): 8.6 km/h
Windrichtung: NO

...more
Lufttemperatur: -0.9 °C
Niederschlag: 0.8 mm/24h

...more
This site makes use of cookies More information