Postdoc Position CRC990: Ecological and Socioeconomic Functions of Tropical Lowland Rainforest Transformation Systems (Sumatra, Indonesia)

The Department of Crop Sciences at the Georg‐August‐Universität Göttingen is offering a
Postdoc position (all genders welcome)
within the framework of the DFG Collaborative Research Centre 990: Ecological and Socioeconomic
Functions of Tropical Lowland Rainforest Transformation Systems (Sumatra, Indonesia)
( www.uni‐goettingen.de/en/310995.html ). The Postdoc will belong to the division of Functional Agrobiodiversity and should start 01.06.2020. The regular working hours will be 39.8 hours per week with a limited contract until 31.12.2023. Salary will be paid according to the German grade 13 TV‐L. Aboveground biodiversity patterns and processes across rainforest transformation landscapes will be investigated. A major focus will be on the integration and synthesis of ecological and socioeconomic data to understand trade‐offs and synergies across local land‐use management scenarios and landscape heterogeneity gradients. Multidiversity and multifunctionality will be analyzed across different land‐use types, landscape heterogeneity gradients and spatial scales under consideration of the socioeconomic context.
Your profile
We are looking for a highly motivated and enthusiastic scientist with excellent communication skills to join our research team. Applicants must hold a PhD in ecology, biology, agriculture or related disciplines. You should have excellent knowledge of ecological statistics with R (e.g. functional trait analyses, mixed models, structural equation modelling) and proficiency in GIS applications (e.g. QGIS). Interested candidates should have research experience in agroecology, functional biodiversity research, tropical ecology and/or landscape ecology. Fluency in written and spoken English and a good publication record are required. Experience in working in tropical countries is an asset.
Your tasks
• Implementation and coordination of a joint landscape‐scale research platform within the framework of the CRC 990 in Jambi Province, Indonesia (Landscape Assessment)
• Coordination of the interdisciplinary research activities within the Landscape Assessment
• Implementation of own experimental studies within the Landscape Assessment focusing on
- Landscape heterogeneity effects on bird and bat communities and predation rates
- Resource utilization and colony development of stingless bees
• Leading publications that synthesize interdisciplinary data from the Landscape Assessment
• Supervision of bachelor, master and doctoral students
• Instruction and supervision of Indonesian field assistants
The University of Göttingen is an equal opportunities employer and places particular emphasis on fostering career opportunities for women. Qualified women are therefore strongly encouraged to apply in fields in which they are underrepresented. The University has committed itself to being a family‐friendly institution and supports their employees in balancing work and family life. The mission of the University is to employ a greater number of severely disabled persons. Applications from severely disabled persons with equivalent qualifications will be given preference.
Your application
Please use the online‐portal https://lotus2.gwdg.de/uni/uzdv/perso/knr_100657.nsf to submit your application until 02.03.2020. Applications should include a letter of interest, your CV, copies of your certificates and contact information of at least two references.
If you have any questions, please contact us:
Dr. Kevin Darras, kdarras@gwdg.de, Prof. Dr. Catrin Westphal, cwestph@gwdg.de, Prof. Dr. Ingo Graß, ingo.grass@uni‐hohenheim.de

Master thesis vacancy: Pollination services in Macadamia plantations in South Africa

In the northern Limpopo province of South Africa, macadamia plantations are becoming increasingly economically important. Owing to its strong dependence on insect pollination and numerous pest species, macadamia yield strongly depends on the provisioning of multiple ecosystem services, i.e. pollination and biological control. However, provisioning of these services depends on large-scale patterns in landscape composition and structure, which may imperil macadamia yields in strongly human-modified agricultural landscapes. In a large collaborative research project together with researchers from the University of Venda, we are studying insect pollination and biological control in commercial Macadamia plantations (“SALLnet” is one of nine projects of the BMBF founded “SPACES2” project - https://www.uni-goettingen.de/de/592566.html). To complement ongoing studies, we are looking for a MSc student who will conduct her or his Master Thesis on pollination in macadamia trees and join the macadamia research team (currently one PhD student and one Postdoc) and work on field sites.
Requirements: You should be interested in pollination and landscape ecology, be able to work in a team, be motivated to work in the field (in sometimes hot weather conditions).
We offer: You will be part of an international research team from the Universities of Venda (South Africa) and Göttingen (Germany), get insights of scientific work and gain experience in the conduction of field experiments (bird and bat exclusion, pollinator exclusion). We cover costs for the flight and accommodation.
Fieldwork will take place from begin of July – end of September 2020 in the rural area of northern Limpopo, South Africa. You will work within the research team and under safe conditions, however, fieldwork in the region can be physically and mentally challenging. Experience in working abroad and taxonomic knowledge of the study organisms therefore is an advantage.
If you are interested, please contact:

Mina Krieger
Functional Agrobiodiversity – DNPW
Georg-August-University Göttingen
Phone: 0551 39 22057
wilhelmine.krieger@uni-goettingen.de

Prof. Dr. Catrin Westphal
Functional Agrobiodiversity – DNPW
Georg-August-University Göttingen
www.agrobiodiversity.uni-goettingen.de cwestph@gwdg.de

Bachelor thesis topic: Assessing the effectiveness of acoustic pan traps

Background
Eco-acoustics are a novel field with exciting opportunities. Currently, one can sample birds, bats,
loud insects, and amphibians with automated sound recorders. We would like to use these devices
to sample insect pollinators as well. We will test their effectiveness while assessing flower strips. We
are looking for a bachelor student who will set up the experiment.
Method and location
We have automated sound recorders (Audiomoth) and pan traps. We will adapt automated sound
recorders to record insect pollinators and directly observe the visits of pollinators to the recorders.
We will establish a reference collection of sounds, measure flower cover, insect pollinator
abundance with pan traps, and activity with sound recorders. Field sampling will be conducted in
different habitats to assess the method's effectiveness.
Requirements
An interest in acoustics and entomology is preferable.
Output
Co-authorship on the resulting paper is possible.

For further details please contact
Dr. Annika Hass ( ahass@gwdg.de ) or Dr. Kevin Darras ( kdarras@gwdg.de ),
Agroecology, Dept of Crop Sciences, University of Göttingen.

Master thesis vacancy: Effects of urbanization on pollinator diversity – field study in Bangalore (India)

In an increasingly urbanized world, maintaining agriculture within and around cities is receiving growing
interest. While urban expansion is predicted to affect important ecosystem services for smallholder
farmers such as pollination and biological pest control, relatively few studies have assessed these services
along rural-urban gradients.
In this study, pollinator abundance and diversity will be assessed in farming households spread along
the rural-urban gradient of the Indian megacity Bangalore. Pollinators will be sampled using pan traps and
transect-walks in 150 farming households. We aim to disentangle the effects of agroecological and
socioeconomic drivers on pollinator diversity and potential pollination services. The study is embedded
in a large Indian-German interdisciplinary project (www.uni-kassel.de/go/for-2432) investigating the
socio-ecological systems along the urban-rural interface and offers a unique opportunity to take part in a
collaborative project involving researchers with different academic backgrounds and origins.
Where: Bangalore, Karnataka, Southern India
When: September – December 2020
Your tasks: visiting twice 150 farming households spread along the urbanization gradient to sample the
pollinators / sorting, pinning and identifying (in India) the collected insects / analyzing the results (at Uni
Hohenheim)
Your profile: we are looking for a highly motivated student willing to carry out fieldwork in challenging
conditions – experience in working abroad is definitely an advantage. You should also be able to work in a
team, as this master project is embedded is a larger project involving several German and / or Indian
students and field assistants
What we offer: a unique working experience abroad, a very exciting and relevant research topic and the
opportunity to join a large interdisciplinary research unit. We cover costs for the flights, local travel and
accommodation (International Students Hostel on the GKVK campus of the University of Agricultural
Sciences, Bangalore). Co-authorship in a resulting scientific publication is possible. We strongly support
you in the fieldwork abroad, statistical analysis and scientific writing of your thesis.

If you are interested to join us, please contact:
Prof. Dr. Ingo Graß, Ecology of Tropical Agricultural Systems, Uni Hohenheim
Prof. Dr. Catrin Westphal & Gabriel Marcacci, Functional Agrobiodiversity, Uni Göttingen
ingo.grass@uni-hohenheim.de & gabriel.marcacci@uni-goettingen.de

Master thesis vacancy: Effects of urbanization on ground-dwelling arthropods and biocontrol – field study in Bangalore (India)

In an increasingly urbanized world, maintaining agriculture within and around cities is receiving growing
interest. While urban expansion is predicted to affect important ecosystem services for smallholder
farmers such as pollination and biological pest control, relatively few studies have assessed these services
along rural-urban gradients.
In this study, ground-dwelling arthropods (e.g. carabid and rove beetles, spiders - all well-known
biological pest control agents) will be assessed using rapid assessments of biodiversity and ecosystem
function in 150 farming households spread along the rural-urban gradient of the Indian megacity
Bangalore. Predation will be estimated by baiting ground-dwelling arthropods with their prey (predation
cards). We aim to disentangle the effects of agroecological and socioeconomic drivers on arthropod
diversity and biocontrol. The study is embedded in a large Indian-German interdisciplinary project
(www.uni-kassel.de/go/for-2432) investigating the socio-ecological systems along the urban-rural
interface and offers a unique opportunity to take part in a collaborative project involving researchers
with different academic backgrounds and origins.
Where: Bangalore, Karnataka, Southern India
When: September – December 2020
Your tasks: visiting twice 150 farming households spread along the urbanization gradient to sample
arthropods using pitfall traps / setting-up the predation cards experiment / sorting and identifying (with
local assistance) the collected insects (in India) / analyzing the results (at Uni Hohenheim)
Your profile: we are looking for a highly motivated student willing to carry out fieldwork in challenging
conditions – experience in working abroad is definitely an advantage. You should also be able to work in a
team, as this master project is embedded is a larger project involving several German and / or Indian
students and field assistants
What we offer: a unique working experience abroad, a very exciting and relevant research topic and the
opportunity to join a large interdisciplinary research unit. We cover costs for the flights, local travel and
accommodation (International Students Hostel on the GKVK campus of the University of Agricultural
Sciences, Bangalore). Co-authorship in a resulting scientific publication is possible. We strongly support
you in the fieldwork abroad, statistical analysis and scientific writing of your thesis.

If you are interested to join us, please contact:
Prof. Dr. Ingo Graß, Ecology of Tropical Agricultural Systems, Uni Hohenheim
Prof. Dr. Catrin Westphal & Gabriel Marcacci, Functional Agrobiodiversity, Uni Göttingen
ingo.grass@uni-hohenheim.de & gabriel.marcacci@uni-goettingen.de

Master thesis vacancy: Biological control across a rural-urban gradient – field study in Bangalore (India)

In an increasingly urbanized world, maintaining agriculture within and around cities is receiving growing
interest. While urban expansion is predicted to affect important ecosystem services for smallholder
farmers such as pollination and biological pest control, relatively few studies have assessed these services
along rural-urban gradients.
In this study, top-down control of insect pests by birds and insects will be assessed in farming
households spread along the rural-urban gradient of the Indian megacity Bangalore. Predation rate will be
quantified by conducting dummy caterpillars experiments allowing discrimination between different
predator groups (i.e. birds, mammals, ants, and other insects). This study is embedded in a large Indian-
German interdisciplinary project (www.uni-kassel.de/go/for-2432) investigating the socio-ecological
systems along the urban-rural interface and offering a unique opportunity to take part in a collaborative
project involving researchers with different academic backgrounds and origins.
Where: Bangalore, Karnataka, Southern India
When: September – December 2020
Your tasks: setting up the experiments (dummy caterpillars) / collecting data (quantifying and identifying
predation marks on the dummies, in India) / analyzing results (at Uni Hohenheim)
Your profile: we are looking for a highly motivated student willing to carry out fieldwork in challenging
conditions – experience in working abroad is definitely an advantage. You should also be able to work in a
team, either with other German/Indian students or local field assistants.
What we offer: a unique working experience abroad, a very exciting and relevant research topic and the
opportunity to join a large interdisciplinary research unit. We cover costs for the flights, local travel and
accommodation (International Students Hostel on the GKVK campus of the University of Agricultural
Sciences, Bangalore). Co-authorship in a resulting scientific publication is possible. We strongly support
you in the fieldwork abroad, statistical analysis and scientific writing of your thesis.

If you are interested to join us, please contact:
Prof. Dr. Ingo Graß, Ecology of Tropical Agricultural Systems, Uni Hohenheim
Prof. Dr. Catrin Westphal & Gabriel Marcacci, Functional Agrobiodiversity, Uni Göttingen
ingo.grass@uni-hohenheim.de & gabriel.marcacci@uni-goettingen.de

Masterthesis Trap-nesting bees and wasps in faba bean landscapes

Pollination is an important ecosystem service, which is endangered by wild pollinator declines due to agricultural intensification. Important factors threatening wild bees are the loss of suitable nesting sites and the availability of floral resources. Mass flowering crops can contribute to biodiversity conservation and restoration in agricultural landscapes, since they provide pollen and nectar resources for insects. A positive effect of oilseed rape, flowering early in the season, on wild bees has been already shown. However, the continuous supply of food resources throughout the whole season is of major importance for the survival of pollinators. One important crop flowering during mid-Summer is the faba bean, which offers pollen and nectar through the flowers and extrafloral nectaries.
We will analyze the effect of the faba bean (Vicia faba) on trap-nesting solitary bees and wasps as well as their parasitoids. We aim to investigate, whether the mid-season food supply provided by faba beans enhances the number of nests, number of brood cells and the species richness of trap-nesting bees and wasps and influences their parasitism rates and whether the percentage of oilseed rape or semi-natural habitats in the landscape play a role.
In April of 2018 we set up 10 trap nests at field margins in 22 paired landscapes in Germany, i.e. 11 landscapes with faba bean cultivation and 11 control landscapes without grain legumes. Landscapes were 1km x 1km big and trap nests were equally spread over the whole landscape. Trap nests were collected in October, all occupied nests were sorted out and stored in a cooling chamber. Individual nests need to be analyzed in the laboratory. The nests will be identified, total number of brood cells, the number of parasitized brood cells and the number of dead cells due to other causes than parasitoids will be recorded. Afterwards, statistical analyses will be conducted.
This study is part of the RELEVANT project (Regulating ecosystem services in crop rotations with faba beans (Vicia faba) and peas (Pisum sativum): Quantification, evaluation and realization) (https://www.thuenen.de/index.php?id=6817&L=0).
Laboratory work may be started as soon as possible.

If you are interested in this master thesis please contact:
Nicole Beyer or Prof Dr. Catrin Westphal
Functional Agrobiodiversity
Department of Crop Sciences
Georg-August-University Göttingen
Phone: +49 551 / 39-33739 or 39-22257
nicole.beyer@uni-goettingen.de
cwestph@gwdg.de

Masterthesis Wildbienen auf Ackerwildkrautschutzflächen

Im Rahmen von Agrarumweltmaßnahmen werden im Landkreis Göttingen rund 50 ha Ackerland ackerwildkrautgerecht bewirtschaftet, um gefährdete Pflanzenarten zu schützen (Verzicht auf Dünger und Biozide). Die Segetalflora dieser Gebiete ist äußerst artenreich (z.T. mehr als 100 Blütenpflanzenarten pro Acker), viele dieser Arten sind wertvolle Nahrungspflanzen für spezialisierte Wildbienen, anders als viele in verbreiteten Blühmischungen enthaltene Arten wie Phacelia.

Im Rahmen dieser Masterarbeit soll im Sommer 2020 untersucht werden, welche Wildbienenarten durch den Schutz der Ackerwildkräuter und dem daraus folgenden natürlichen Blütenreichtum profitieren. Untersucht wird die Relevanz als Nahrungsraum, aber auch die Eignung als Nisthabitat, insbesondere der Ackerrandstrukturen. Viele der Ackerwildkrautschutzflächen weisen zudem einen Biotopverbund mit anderen wertvollen Wildbienenlebensräumen wie Magerrasen auf. Auch der Einfluss der Einbettung in eine strukturreiche Agrarlandschaft mit extensiv bewirtschafteten, mageren Grünländern ist Teil der Untersuchung.

Kontakt:
Dr. Annika Hass
Funktionelle Agrobiodiversität Tel.: 0551 / 39-22157
Email: ahass@gwdg.de