Dipl. Biol. Malte Jochum

Current project


Currently I am working in project B01 "Structure, stability and functioning of macro-invertebrate communities in rainforest transformation systems in Sumatra (Indonesia)" of the CRC 990 "Ecological and Socioeconomic Functions of Tropical Lowland Rainforest Transformation Systems (Sumatra, Indonesia)". Together with Andrew Barnes, the other PhD student in this project, I am investigating macro-invertebrate communities of the litter layer in tropical lowland rainforest, jungle rubber, rubber and oil palm plantations. We aim to provide better understanding of the processes that shape the communities following the landuse change and to model population stability, food-web persistence and decomposition rates.



Diploma thesis project


For my diploma thesis with title: "Bottom-up versus top-down control in a marine benthic food web" I worked with Dr. Eoin O'Gorman (School of Biology & Environmental Science, University College Dublin) at Lough Hyne (Co. Cork, Ireland), a highly sheltered marine reserve in Irelands southwest. Using Carcinus maenas as top predator in a mesocosm experiment planted in the shallow subtidal of the Lough, we aimed to find out how nutrient enrichment and altered body mass of the top predator species affect the food web of the Lough's shallow subtidal.

Publications:


Mumme, S., Jochum, M., Brose, U., Haneda, N.F. & Barnes, A.D. (2015): Functional diversity and stability of litter-invertebrate communities following land-use change in Sumatra, Indonesia. Biological Conservation 191: 750-758


Kalinkat G., Jochum, M. , Brose, U. & Dell, A.I. (2015): Body size and the behavioral ecology of insects: linking individuals to ecological communities. Current Opinion in Insect Science 9: 24-30


Barnes, A.D., Jochum, M., Mumme, S., Haneda, N.F., Farajallah, A., Widarto, T.H., Brose, U. (2014): Consequences of tropical land use for multitrophic biodiversity and ecosystem functioning. Nature Communications 5:5351 doi: 10.1038/ncomms6351 shared first authorship


Jochum, M., Schneider, F.D., Crowe, T.P., Brose, U. and O'Gorman, E.J. (2012): Climate-induced changes in bottom-up and top-down processes independently alter a marine ecosystem. Phil. Trans. R. Soc. B. 367: 2962-70


Invited Talks:


Community energy flux as a measure of multitrophic ecosystem functioning
April 30, 2015 at Institute of Life and Environmental Sciences, University of Iceland
Invited by Gísli Már Gíslason


Community energy flux as a measure of multitrophic ecosystem functioning
March 31, 2015 at Ecology and Evolution Seminar Series, Imperial College London
Invited by Eoin O'Gorman




Conference contributions:


Litter macro-invertebrate community responses to consumer-resource stoichiometric imbalance August 31 - September 4, 2015, oral presentation at GFÖ annual meeting, Göttingen, Germany


Consequences of tropical land use for multitrophic biodiversity and ecosystem functioning December 9-12, 2014, poster presentation at BES-SFE joint annual meeting, Lille, France


Tropical rainforest decomposer food webs along a land-use intensity gradient in Sumatra August 18-23, 2013, oral presentation at INTECOL, London, UK


Climate-induced changes in bottom-up and top-down processes independently alter marine ecosystems December 17-20, 2012, oral presentation at Annual Meeting of the British Ecological Society, Birmingham, UK

The structure, stability and functioning of macro-invertebrate communities in rainforest transformation systems in Sumatra (Indonesia) December 17-20, 2012, poster presentation at Annual Meeting of the British Ecological Society, Birmingham, UK

Bottom-up vs. top-down control in a marine benthic food web. March 22-23, 2012, poster presentation at Multitrophic Interactions workshop Goettingen


For his diploma thesis Malte Jochum was funded by Evangelisches Studienwerk e.V. Villigst.