Anna Treydte Universitetslektor, docent

Om mig

I am an Associate Professor in Nature and Environmental Management, with a focus on Sustainable Development, here at the Department of Physical Geography.

My scientific interest lies in biodiversity and conservation challenges in a human-impacted, changing world. My main research focus lies in assessing how climate change and human activities alter structural, species and functional biodiversity of flora and fauna in natural and agro-ecological systems. I investigate plant-animal interactions and animal population management, human-wildlife coexistence and livestock impacts on rangelands across the world. I am interested in the shifts in nutrient cycling, carbon stocks as well as plant and animal species diversity and invasiveness in landscapes of various human land use pressure (e.g., corridors, buffer zones, protected lands and cultivated lands) that are also facing weather extremes triggered by climate change. I include socio-ecological aspects in my research as sustainable human-wildlife coexistence can only be achieved when local stakeholders are informed and participate in the decision-making process on resource use.

With my research projects, I address human-wildlife coexistence globally, particularly focusing on wild mammal species but also investigating livestock populations and their movement patterns in and around protected areas. My research spans across various spatial and temporal scales and addresses ecosystem functions and processes in temperate climates (Germany, Sweden, Italy), desert environments (Mongolia, Saudi Arabia), savanna systems (eastern and southern Africa), mountain regions (Andes) and tropical forests (China, Vietnam, Thailand, Tanzania).

 

Publications: https://scholar.google.com/citations?user=bOhIQlkAAAAJ&hl=en

 

I am also affiliated with two other universities as Adjunct Professor (Privatdozentin), where I contribute to supervision and teaching tasks:

University of Hohenheim, Ecology of Tropical Agricultural Systems:

https://hohcampus.verw.uni-hohenheim.de/qisserver/a/cs.psv.frontend/person/view/123065

Nelson Mandela African Institution of Science and Technology, Dept of Life Sciences and Bioengineering:

https://nm-aist.ac.tz/lisbe-adjunct-staff/

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Current Bsc and MSc courses I teach at SU:

2024 – present       Theory and Methods in Globalization, Environment and Global change, MSc-Module KG7229 (SU)

2023 – present       International Environmental Management, MSc-Module GE7084 (SU)

2022     CIVIS – Transdisciplinary Course on Sustainability Science, based at University of Bucharest in collaboration with Stockholm University

2022                     CIVIS – Global Change Biology, based at Sapienzia University Rome in collaboration with Stockholm University

2021 – present       Political Ecology – Land use and natural resources in a local to global perspective, MSc-Module GE7081 (SU)

2021 – present       Landscape Ecology, MSc-Module GE7075 (SU)

2021 – present       Applied GIS analyses, MSc-Module GE7088 (SU)

2021 – 2022          Green Infrastructure, MSc-Module GE7077 (SU)

2023 – present       Earth Sciences and Sustainable Development, BSc-Module GE5042 (SU)

2021 – present       Natural Resources and Sustainable Development / Naturresurser och hållbar utveckling, BSc-Module GE 2024 (SU) – course responsible

2021 – present       Ecosystem Services Management / Ekosystemtjänstförvaltning, BSc-Module GE 2025 (SU) – course responsible

2021 – present       Sustainable Consumption, BSc-Module GE 2026 (SU)

 

MSc Theses I have supervised:

2024 – 2025     I. Li: Habitat distribution analysis of wetlands for waterbirds in Sweden (SU)

2024 – 2025     S. Acosta: Modeling the distribution of invasive hippos in Colombia and understanding their impact on ecosystem services (SU)

2024 – present     A. Sommarström:  Woody encroachment of invasive Acacia mearnsii and related environmental factors in a South African rangeland (SU)

     

 

 

 

 

 

2024 – 2025     A. Sima: Burns and Bison: Plant biodiversity under various management regimes in Illinois Tallgrass Prairie (SU)

     

 

 

 

 

 

2024                    R. Mukkat: Eco-labelling criteria for promoting sustainability in C-Part products: a review (SU)

     

 

 

 

 

2024                    F. Fahim: Visualizing and analyzing unequal exchange conflicts of mineral ores and associated environmental justice in Sweden (SU)

    

 

 

 

 

2023 – 2024      J. Villing:

Assessing the survival of tree seedlings planted for Carbon offsets by smallholder farmers in Tanzania (UHOH, ECHO East Africa)

    

 

 

 

 

2023 – 2024      L

. Winkler: Socio-ecological conditions needed for restoring Tanzanian rangelands through seedbomb technology (UHOH, Savannas Forever, NM-AIST)

    

 

 

 

 

2023 – 2025      J. Eriksson: Home range connectivity and attitudes towards wolves on a landscape scale in Sweden (SU)

    

 

 

 

 

2023 – 2025     M. Augustin: Wolf – human coexistence: an example of policies and associated acceptance by the local communities in Poland (SU)

    

 

 

 

 

 

 

2023 – 2024        V. Josefsson: Assessing the effects of different management practices in cattle herding on soil properties and ground vegetation (SU, Rhodes University)

      

 

 

 

 

 

 

2023 –2024         L. Andersson: Seed bank distribution of

Lupinus polyphyllus

under different management regimes in Sweden (SU, DEEP)

       

 

 

 

 

2023 – 2024       A. Garnell: Plant species diversity and carbon stocks in salt marshes under different grazing regime (SU, DEEP)

    

 

 

 

 

 

2023                  P

 

 

.

 

 

Bhatnagar:

 

 

Investigating Groundwater Depletion in Agra, Uttar Pradesh: Agroforestry as potential water management strategy

 

   

 

(SU)

     

 

 

 

 

 

2023                   A. Theorell: The potential environmental and health impacts by establishing a rare earth

 

element mine in Kiruna, Sweden (SU)

      

 

 

 

 

 

 

2022 – 2023        H. Kjeldahl: Porpoise movement with respect to fishing activity and protected areas in the Kattegat area (SU, Natural History Museum)

      

 

 

 

 

 

 

2022 – 2023        L. Soliz: Shrub encroachment in savanna systems based on the ground water table and soil moisture availability (SU, NM-AIST)

      

 

 

 

 

 

 

2022 – 2024        F. Vikinger: Are reindeer afraid of tourists? Movement patterns of reindeer in northern Sweden (SU, Swedish Agricultural University)

      

 

 

 

 

 

 

2022 – 2023        M. Mischke: Herder and livestock movements in search for water sources in the Mongolian steppe (SU, UHOH)

      

 

 

 

 

 

 

2022 – 2023        Y. Aurell: Land take and reuse in the city of Uppsala, Sweden (Stockholm University)

      

 

 

 

 

 

 

2019 – 2023        J. Sanare: Human-elephant interactions and community attitudes in Kitendeni Wildlife Corridor, Tanzania (NM-AIST, Nordanglia, AridLands)

      

 

 

 

 

 

2021 – 2022        J. Dietz:

 

S

 

cenario-based land use/cover change and impacts on forest carbon stocks in Zambia (SU, Thuenen Institute for Forestry and Forest Economics)

     

 

 

 

 

 

2021 – 2022        A. Lindahl:

Inventory of invasive plant species Lupinus polyphyllus in Dalarna county (Sweden) and its effects on pollinator diversity (Stockholm University)

      

 

 

 

 

 

2019 – 2022        S. Adiel: Assessment of Artemisia annua to control Invasive Gutenbergia cordifolia at Mwiba Game Ranch in the Greater Serengeti ecosystem (NM-AIST, Friedkin Foundation)

     

 

 

 

 

 

2019 – 2021        M. Michael: How does natural plant extract treatment against the alien invasive Gutenbergia cordifolia affect the diversity and foraging behavior of flower visiting insects in Ngorongoro, Tanzania? (NM-AIST, Friedkin Foundation)

     

 

 

 

 

 

2019 – 2020        J. Ploechl: Herders’ traditional knowledge and rangeland management as climate adaption strategy in the Enduimet Wildlife Management Area, Northern Tanzania (NM-AIST, Nordanglia, UHOH)

     

 

 

 

 

 

 

2018 – 2021        N. Felix: Effects of retaliatory killing on the dynamics of male lion coalitions: a case study in Tarangire Manyara Ecosystem (NM-AIST, TAWIRI)

      

 

 

 

 

 

 

2018 – 2021        A. Asenga: Spatial component of woody encroachment: impacts on plant functional groups and predators (NM-AIST, MaswaGR)

      

 

 

 

 

 

 

2018 – 2021        G. Nchimbi: Re-colonization of flora and fauna in the post mining area of Lake Manyara National Park, Tanzania (NM-AIST, TANAPA)

      

 

 

 

 

 

 

2018 – 2020        W. Kananga: Managing the invasive plant Parthenium hysterophorus and its socio-economic impact on local communities in Arusha, Tanzania (NM-AIST, TPRI)

      

 

 

 

 

 

2017 – 2019        S. Dror: Assessing the interaction between Asian elephants (Elephas maximus) and Asian honey bees (Apis cerana indica) (UHOH, King Mongkuts University)

     

 

 

 

 

 

 

2017 – 2019        H. Kimaro: The dynamics of bush encroachment through Acacia drepanolobium  in the Mara Region, Tanzania (NM-AIST, Wake Forest University)

      

 

 

 

 

 

 

2017 – 2019        J. Lyakurwa: How humans impact the habitat structure for reptiles in the Uzungwa Scarp Forest Reserve (NM-AIST)

      

 

 

 

 

 

 

2017 – 2019        A. Baltazary: Wildlife-livestock interaction: is the feeding behaviour of wildlife influenced by livestock? (NM-AIST, Norwegian Technical University)

      

 

 

 

 

 

 

2017 – 2018       E. Gerhard: Wildlife-friendly cocoa production: Assessing potential management strategies (UHOH, University of Ghana)

      

 

 

 

 

 

 

2017 – 2018        T. Sukic: Comparing invasive success of the plant species Parthenium hysterophorus in- and outside the Kruger National Park, South Africa (UHOH, Scientific Services South Africa)

      

 

 

 

 

 

2016 – 2017        H. Hayat: Wildlife - livestock interaction in the contractual Richtersveld National Park, South Africa (UHOH, Coventry University)

     

 

 

 

 

 

2014 – 2015        A. Manas: Assessing the potential of wildlife corridors as mitigation measures for human-elephant conflicts in rubber-dominated landscapes (UHOH)

     

 

 

 

 

 

2013                   M. Jung: Farmer´s perspective of human-wildlife conflicts around the Tai Rom Yen protected area, southern Thailand (UHOH)

     

 

 

 

 

 

2013                   K. Aidoo: GIS based land use mapping of small-scale farming adjacent to rubber cultivations in southern Thailand (UHOH)

     

 

 

 

 

 

2012 – 2013        M. Sandalj: Consumption and trade of wild meat in Thua Thien Hue province, Vietnam (UHOH, TRAFFIC - WWF Vietnam)

     

 

 

 

 

 

2011 – 2012        L. Atanga: Assessing the sustainability of different livestock production systems of small farm holders in Gewane district, Afar region, Ethiopia (UHOH, Institute of Social and Institutional Change in Agricultural Development).

     

 

 

 

 

 

2010 – 2012        S. Baumgartner: Wildlife and livestock herbivory shaping woody and grassy vegetation species composition and nutrients in a South African Savanna (UHOH)

     

 

 

 

 

 

2010 – 2011        F. Harich: The effects of human-wildlife conflicts on food security around the Bia Conservation Area, Ghana (UHOH, University of Ghana)

     

 

 

 

 

 

2010 – 2012        P. Trumpf: Human-wildlife conflicts in and around the Naban River Watershed National Nature Reserve, Yunnan, China (UHOH)

     

 

 

 

 

 

2008 – 2009        S. Ikenoue: The effect of the land reform on land use pattern change in Limpopo Province, South Africa (UHOH and South African Environmental Observation Network (SAEON)).

     

 

 

 

 

 

2006 – 2007        J. van der Beek and J. Perdok: Enhanced use of beneath-canopy vegetation by grazing ungulates in African savannahs (Wageningen University, SANPARKS)

     

 

 

 

 

 

 

2007                   F. Looringh van Beeck: Improved beneath-crown grass quality in South African savannas (Wageningen University)

      

 

 

 

 

 

 

2004                   S.A. Halsdorf: Habitat use of the common warthog Phacochoerus africanus on a former cattle ranch in Tanzania (ETH Zürich)

      

 

 

 

 

BSc theses:

    

 

 

 

 

 

2025                H. Nordstrom: From Farm to Fork: Microplastics in U.S. Livestock and the Impacts on Food Safety (SU)

     

 

 

 

 

2025                D. Christiansen: Regional differences in the Scandinavian grey wolf (Canis lupus) territorial preferences of summer browsing moose (Alces alces) (SU)

    

 

 

 

 

2025                G. Pranic-Mattson: Is the threat of invasive plant species a concern for Tanzanian pastoralists, or is there another looming threat? (SU)

    

 

 

 

 

2025                D. Rumman: Assessing the impact of climate change on badger distribution and associated implications of range shifts in Sweden

    

 

 

 

 

2025                B. Morell: Wolves in Sweden: Identifying hotspots of human-wolf conflict in Dalarna (SU)

    

 

 

 

 

2025                S. Edenberger: Tree presence and their contribution to ecosystem functioning in grazed semi-arid grasslands (SU)

    

 

 

 

 

2025                J.L. Heckel: Umfrage zur Beweidung mit Wasserbüffeln – Potenziale, Herausforderungen, Management (UHOH, SU)

    

 

 

 

 

2025                N. Alexieva: The choice of migratory routes of the White stork in Europe (SU)

    

 

 

 

 

2024                L. Barthel: Differentiating the Roles of Compositional and Configurational Heterogeneity

 

in Agricultural Landscape Gradients - a literature review (SU)

     

 

 

 

 

 

2024                E. Johansson: Hur skiljer sig ackumulation av mikroplast i en buktstrand VS en exponerad sandstrand i Messenien?

 

 

(SU)

     

 

 

 

 

 

2024                 T. Nilsson H

 

 

ä

 

 

ll: Rains without rainbows - flood risk and vulnerability of transgender communities in Kenya (SU)

     

 

 

 

 

 

 

2024                 A.

  

 

 

Å

  

 

 

slund:

  

 

 

Effects of conservation measures on the endangered Alcon blue butterfly Phengaris alcon population in Sweden (SU)

      

 

 

 

 

2024                

H. Pulls:

 

Possible reasons to the recent decline of the Ural owl (Strix uralensis) population in Sweden (SU)

     

 

 

 

 

 

 

2023                 C. Corman: Bicycle infrastructure in a European urban context (SU)

      

 

 

 

 

 

 

2022                 E. Palmertz: Spatial modeling of soil erosion and identification of high-risk spots with the GIS-RUSLE model for lake Vättern, Sweden (SU)

      

 

 

 

 

 

 

2022                 E. Fransson: It can never be worse than now-A qualitative study of mining related conflicts in Sápmi from a Sámi perspective (SU)

      

 

 

 

 

2009 – 2010      N. Österle: Assessment of livestock keeping practices and manure use under varying environmental and socio-economic constraints in Southern Ethiopia (UHOH, Hawassa University)

    

 

 

 

 

2009                 J. Mück: Konflikte mit Schwarzwild und Analyse von Wildschäden in Baden-Württemberg (UHOH)

    

My research addresses the following questions:

  • How do plants and animals respond to human impact in protected and cultivated landscapes?

  • How can we maintain biodiversity in times of global and /or climate change?

  • What solutions are environmentally sustainable? What is socio-economically sustainable?

  • How passive / active should we be when restoring ecological functions and services in rangelands?

 

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Below are the various research projects that I am leading:

 

HUMAN-WILDLIFE COEXISTENCE

 

Human – Wildlife Coexistence: 

Reaching a sustainable human – wildlife coexistence by understanding patterns, predicting conflict hotspots and improving communication

Members: 

Ronja Kraus, PhD student (https://www.su.se/english/profiles/rokr4514-1.591101); Erica von Essen, co-supervisor (https://www.slu.se/cv/erica-von-essen ); Anna Sustersic, co-supervisor (https://www.coexistence.life/team/ )

 

We are mapping human-wildlife conflicts on a large scale, with case study sites in Sweden and Italy. We use data on conflict occurrences, wildlife population trends and movement patterns as well as socio-ecological drivers to understand the dynamics between human and wildlife land use over space and time. Using interviews, GIS mapping and Agent based modelling we plan to draw a landscape of acceptance in the human-dominated land around protected areas.

 

Intended year of graduation:

 Year 2026, at Stockholm University, Sweden

Funding:

 Stockholm University

Related publications:

 not yet

Link: 

https://www.su.se/forskning/forskningsprojekt/ng-att-uppn%C3%A5-en-h%C3%A5llbar-samexistens-mellan-m%C3%A4nniskor-och-rovdjur-i-ett-socio-milj%C3%B6v%C3%A4nligt-landskap

Partners: 

SKANDULV: 

https://www.slu.se/om-slu/organisation/institutioner/ekologi/forskning/skandulv/

Stelvio National Park:

 https://www.nationalpark-stelvio.it/en/stelvio-national-park.html

 

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Human – Wildlife Coexistence: 

Striking a Balance: Navigating Human-Carnivore Conflicts Around Ruaha National Park in Tanzania

 

Members: 

Maximilian Mgimba, PhD student; Francis Moyo, co-supervisor (https://nm-aist.ac.tz/teams/dr-francis-moyo/ ); Naza Mbaga, co-supervisor (https://www.researchgate.net/profile/Naza-Mmbaga )

 

We investigate the drivers of human wildlife conflicts and assess the effectiveness of management approaches around Ruaha National Park. Through literature reviews and large-scale interview data we try to understand spatio-temporal patterns in conflict locations and assess which conflict mitigation or prevention tools work best.

 

Intended year of graduation:

 Year 2026, at NM-AIST, Tanzania

Funding:

 NM-AIST, private

Related publications:

 not yet

Link: -

Parnters:

Ruaha Carnivore Project: 

https://www.lionlandscapes.org/approach

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RANGELAND CONSERVATION AND MANAGEMENT

 

Rangeland Ecology:

 Adapting to change – co-management scenarios of local pastoralists and protected area management to maintain cultural and biological diversity in the Dzungarian Gobi, Mongolia

 

Members: 

Lena Michler, PhD student (https://agroecology.uni-hohenheim.de/michler ); Petra Kaczensky, co-supervisor (https://www.inn.no/english/find-an-employee/petra-kaczensky.html )

 

Here we focus on the biological and cultural diversity in the Dzungarian Gobi desert in Mongolia, where nomadic pastoralists roam with their herds of goats, sheep and other livestock, sharing the natural resources with wild ungulates. We investigate livestock movement patterns using GPS collars and conduct surveys on the traditional nomadic herding management. We apply a socio-ecological approach, including field observations, laboratory experiments and collecting interview data.

 

Intended date of graduation: 

Year 2025, at the University of Hohenheim, Stuttgart, Germany

Funding: 

Heinrich Boell Stiftung, Germany; ITG Switzerland

Related publications:

Michler LM, Kaczensky P, Batsukh D, Treydte AC (2024) What will the future bring? – Socio-economic challenges to herder households in the Dzungarian Gobi, Mongolia. Preprint: 

https://doi.org/10.21203/rs.3.rs-4743895/v1

  

Michler LM, Kaczensky P, Oyunsaikhan G, Bartzke GS, Devineau O, Treydte AC (2023) To move or not to move—factors influencing small-scale herder and livestock movements in the Dzungarian Gobi, Mongolia. 

Regional Environmental Change

 23: p.131. https://doi.org/10.1007/s10113-023-02126-y

Michler LM, Kaczensky P, Ploechl JF, Batsukh D, Baumgartner SA, Battogtokh B, Treydte AC (2022) Moving toward the greener side: environmental aspects guiding pastoral mobility and impacting vegetation in the Dzungarian Gobi, Mongolia. Rangeland Ecology & Management 83:149-160. 

https://doi.org/10.1016/j.rama.2022.03.006

Michler LM, Treydte AC, Hayat H, Lemke S (2019) Marginalised herders: Social dynamics and natural resource use in the fragile environment of the Richtersveld National Park, South Africa. Environmental Development 29:29-43. h

ttps://doi.org/10.1016/j.envdev.2018.12.001

Partners:

International Taki Group: 

www.savethewildhorse.org

 

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Rangeland Ecology: 

Pyrodiversity affecting plant species communities in the Serengeti ecosystem

Members: 

Louis Hunninck, post-doc (https://www.researchgate.net/profile/Louis-Hunninck); Stuart Smith, collaborator (https://research.brighton.ac.uk/en/persons/stuart-smith); John Bukombe, collaborator (https://www.researchgate.net/profile/Bukombe-John )

 

Here, we assess how fire frequency, timing, intensity, and size affect the distributions of herbaceous species across the Serengeti ecosystem, Tanzania. We compile a unique herbaceous dataset from 20 projects spanning two decades, containing more than 450 surveyed herbaceous species and over 11,000 recorded species presence locations. We apply joint species distribution models using the Hierarchical Modelling of Species Communities (HMSC) approach, which incorporates species phylogeny and species co-occurrence to better inform how species distributions relate to environmental variables. We consider both environmental (e.g., mean annual rainfall) and anthropogenic disturbance covariates (e.g., distance to roads).

 

Intended end of project: 

Year 2025

Funding: 

Stockholm University

Related publications: 

not yet

Link:

 https://www.su.se/forskning/forskningsprojekt/ng-f%C3%B6rst%C3%A5else-av-hur-branddiversitet-p%C3%A5verkar-v%C3%A4xtartssamh%C3%A4llen-i-serengeti-ekosystemet

 

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Rangeland Management:

 How resilient are semi-arid rangelands towards high grazing pressure and rainfall variability? Water and nutrient availability under different grazing regimes in eastern Africa

 

Members: 

Sabine Baumgartner, PhD student (https://agroecology.uni-hohenheim.de/baumgartner); Stuart Smith, collaborator (https://www.hutton.ac.uk/people/stuart-smith/ )

 

This research focuses on understanding traditional herding strategies, in particular the use of long-time exclosures and seasonal grazing grounds of Maasai pastoralists in northern Tanzania. We analyse the effect of different grazing pressure on herbaceous vegetation growth and composition, soil properties and water content. I use both observational and experimental studies in the field.

Intended date of graduation: 

Year 2025, at the University of Hohenheim, Stuttgart, Germany

Funding: 

Hans Boeckler Stiftung, Germany

Related publications: 

Baumgartner SA, Smith SW, Bartzke G, Laizar O, Ploechl J, Michler L, Naro E., Treydte AC (2024) Love your wet grass! Dry season grazing reserves show highest grass regrowth in communal semi-arid rangelands of Tanzania. PlosOne 24. 

doi.org/10.1371/journal.pone.0313818

 

Baumgartner SA, Treydte AC. 2022. Back to the Roots-Do Traditional Maasai Management Strategies Work towards Resilience against Unpredictable Rainfall and Grazing Pressure in Northern Tanzania? IGC Proceedings (1993-2023). 4. https://uknowledge.uky.edu/igc/24/1-2/4

Baumgartner S, Treydte AC, Grant CC, van Rooyen J (2015) Can diverse herbivore communities increase landscape heterogeneity? Comparing wild and domestic herbivore assemblages in a South African savanna. Perspectives in Plant Ecology, Evolution and Systematics 17: 34-43. 

https://doi.org/10.1016/j.ppees.2014.11.002

Treydte AC, Baumgartner S, Heitkönig IMA, Grant CC, Getz WM (2013) Herbaceous forage and selection patterns by ungulates across varying herbivore assemblages in a South African savanna. PLoS ONE 8(12): e82831. doi:10.1371/journal.pone.0082831.

Partners:

TAWIRI:

 https://www.tawiri.or.tz/

APW: 

https://www.africanpeoplewildlife.org/about/history/tanzania-people-wildlife

 

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Rangeland restoration: 

Restoration tools to restore soils and plants of degraded rangelands

Members: 

Annrose Mwangi, co-supervised together with SLU (https://www.slu.se/en/ew-cv/annrose-mwangi/); Aida Bargués Tobella, co-supervisor (https://www.slu.se/en/ew-cv/aida-bargues-tobella/)

 

This project is part of a FORMAS funded project (Restore4More) to improve understanding of the plant-soil-water nexus.We investigate rangeland restoration activities to enhance diversity, adaptation and mitigation of climate change through the pastoralism communities, and improve food and water security in the rangelands of East Africa. We investigate responses of soil-water and plant communities towards different restoration technologies from an interdisciplinary and participatory approach

.

 

Intended date of graduation:

 Year 2028, at SLU, Umea, Sweden

Funding: 

FORMAS special call on biodiversity, climate and water (Restore4More: Scaling rangeland restoration in drylands through synergies in the biodiversity-water-climate nexus 2023 – 2027)

Related publications:

 Not yet

Link:

 https://www.slu.se/en/collaboration/international/slu-global/triple-l/projects/restore4more/

https://www.slu.se/globalassets/slu.se/samverkan/slu-global/triplel/projects/restore4more/bargues-tobella-a-20240120.pdf

 

Partners:

Vi agroforestry:

https://www.viagroforestry.org/

CIFOR:

https://www.cifor-icraf.org/

IGAD:

https://igad.int/

Makerere University:

https://mak.ac.ug/

University of Nairobi:

https://www.uonbi.ac.ke/

SIWI:

https://siwi.org/who-we-are/

 

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Rangeland restoration: 

Seedbombs as active restoration technology for eastern African rangelands

Members: 

Gladys Lendii, PhD student (https://www.researchgate.net/profile/Gladys-Lendii-2); Francis Moyo, co-supervisor (https://nm-aist.ac.tz/teams/dr-francis-moyo/); Issakwisa Ngondya, co-supervisor (https://nm-aist.ac.tz/index.php/issakwisa)

 

In this project, we are testing the seedball technique in the restoration of degraded rangelands and improvement of pastoralist grazing land in Northern Tanzania. We want to understand the pastoralists’ awareness, willingness and preferred grass species for rangeland restoration. We assess the distribution and abundance of preferred native grass species across different livestock grazing zones in rangelands of northern Tanzania and under varying environmental conditions. Then we test the germination rate of the preferred grass species in seedbombs under different environmental conditions.

Intended date of graduation:

 Year 2026, at NM-AIST, Tanzania

Funding: 

Rufford Small Grants, College of African Wildlife Management Mweka

Related publications:

 Not yet

Link: -

Partners:

Savannas Forever Tanzania

https://www.savannasforeverinternational.org/

 

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INVASIVE PLANTS

 

Invasive Plant Species Management: 

The current distribution of Helichrysum species and their effect on orchid species in Kitulo National Park, Tanzania

Members: 

Christopher Mgimba, PhD student (https://www.researchgate.net/profile/Christopher-Mgimba); Issakwisa Ngondya, co-supervisor (https://nm-aist.ac.tz/index.php/issakwisa ); Stuart Smith, collaborator (https://www.hutton.ac.uk/people/stuart-smith/ )

 

Kitulo National Park (KNP) hosts a high diversity of charismatic orchid species. However, KNP has undergone ecological changes in terms of vegetation cover, following the cessation of livestock grazing and crop cultivation. Most of the orchid species are sensitive to ecological changes such as expansion of herbaceous vegetation but so far little is known about the response of orchid species in KNP to the herbaceous native invader plant, Helichrysum species, that have started to dominate some parts of the park. Such information is crucial for successful in-situ conservation of orchids. We assess plant species communities in the field, conducting interviews to understand historical use of this area and doing greenhouse experiments on Helichrysum species germination potential under different environmental conditions.

Intended year of graduation: 

Year 2025, at the Nelson Mandela African Institution of Science and Technology (NM-AIST), Arusha, Tanzania

Funding:

 Mbeya University of Science and Technology, Tanzania

Related publications:

Mgimba C, Ngondya IB, Treydte AC (2025) Effect of fire timing on the regeneration capacity of Helichrysum species in Tanzania. Ecological Solutions and Evidence ESO-24-02-046.

doi.org/10.1002/2688-8319.70037

Mgimba CA, Ngondya IB, Treydte AC (2024) The effect of Helichrysum shrub encroachment on orchids in a tropical, montane grassland ecosystem, Tanzania. Australian Journal of Botany. 2024 Nov 8;72(8). Doi.org/10.1071/BT23107

Mgimba CA, Smith SW, Ngondya IB, Treydte AC. (2024) The interplay between historical land‐use and the distribution of Helichrysum shrubs in an African‐protected grassland. African Journal of Ecology 62. (2):e13273. https://doi.org/10.1111/aje.13273

 

 

Supervision (as a main supervisor):

PhD Theses:

2021 – present   R. Kraus: Understanding spatial and temporal patterns of human-wildlife conflict incidences and identifying mitigation tools for protected area surroundings in Europe and Africa (SU)

2018 – present    S. Baumgartner: Water and nutrient availability of semi-arid rangelands under high grazing pressure and rainfall variability (UHOH, NM-AIST)

2020 – 2025      C. Mgimba: The distribution of native and invasive herbaceous species in Kitulo National Park, Tanzania (NM-AIST)

2019 – 2024       D. Ladislaus: Impact of human activities on the lesser flamingo (Phoeniconaias minor) population in the Momella Lakes Ecosystem, Tanzania (NM-AIST)

2019 – 2022       L. Theodori: Modeling the Impacts of land use /land cover change on Ecosystem services at Wami-Mbiki-Saadani Ecosystem, Tanzania (NM-AIST, Aridlands)

2017 – 2025      L. Michler: Adapting to change – co-management scenarios of local pastoralists and protected area management to maintain biological and cultural diversity in the Dzungarian Gobi in Mongolia (UHOH, University of Vienna, Thakin Tal, Mongolia )

2018 – 2022       P. Shayo: The contribution of oysternuts (Telfairia pedata)  to biodiversity conservation and improved community livelihoods in northern Tanzania (NM-AIST, Sokoine University of Agriculture)

2018 – 2021       E. Mohammed: Effects of overgrazing and illegal harvesting on the regeneration and ecology of Balanites aegyptiaca and Ziziphus spina-christi in Dinder Biosphere Reserve, Sudan (NM-AIST, Gezira University)

2018 – 2021       F. Thomas: The role of rangeland pollinators for pastoralist livelihoods in northern Tanzania (NM-AIST, Ministry of Agriculture)

2017 – 2021       C. Leweri: Pastoralism and wildlife conservation in the face of climate change: will shifts in movement patterns and herding strategies resolve conflicts? (NM-AIST, NCAA)

2017 – 2021       S. Abihudi: Phylogenetic relationships, occurrence and sustainable harvesting of Aloe spp. in Tanzania (NM-AIST, University of Uppsala)

2017 – 2020       B. Mwendwa: Potential spread and management options of the invasive tree species Maesopsis eminii in Amani Nature Forest Reserve, Tanzania (NM-AIST, Ministry of Forestry)

2017 – 2020       F. Ojija: Invasive species impact on insect functional groups – the case study of Parthenium hysterophorus in Tanzania (NM-AIST, Greenwich University)

2016 – 2020       G. Mayengo: Understanding the importance of termite mounds and other nutrient hotspots for ungulates in the Issa Valley, Tanzania (NM-AIST, University of Liverpool)

2014 – 2017       N. Emmanuel: Drivers of human-elephant conflicts and their management implications: a case of Rombo area, Kilimanjaro, Tanzania (NM-AIST)

2014 – 2017       I. Ngondya: Invasive species management for sustainable ecosystem conservation in the Ngorongoro Ecosystem, Tanzania (NM-AIST)

2012 – 2017       S. Kawo: Estimating sustainable rangeland productivity under different herbivore pressure and climate change scenarios (UHOH)

2012 – 2017       F. Harich: Conflicts of human land-use, conservation areas, and expanding rubber plantations: The case of Asian elephants in Xishuangbanna (UHOH, Beijing Normal University)

2010 – 2014       H.M. Yusuf: Rangeland management and Carbon stocks in Southern Ethiopia with respect to land use changes and shifting climatic conditions (UHOH)

 

 

 

Supervision as a co-supervisor for PhD students:

2023 – present A. Mwangi: Restoring the biodiversity-soil-water nexus in semi-arid rangelands of eastern Africa (main supervisor: Aida Bargues Tobella, SLU Umeå)

2022 – present G. Lendii: Seed ball technology for restoration of degraded rangelands in Longido District, Northern Tanzania (main supervisor: I. Ngondya, NM-AIST)

2021 – present  M. Mgina: Human-Carnivores Conflicts: Investigating the Drivers and Management Approaches at Ruaha National Park (main supervisors: N. Mbaga, University of Dodoma and F. Moyo, NM-AIST)

2020 – 2025      D. Shidende: Design and Development of an Accessible Open-Source Augmented Reality Learning Authoring Tool for applications in an agro-ecological setting (main supervisor: S. Moebs, DHBW Heidenheim, Germany, and University of Hohenheim)

2017 – 2025      T. Abate: Seed regeneration of invasive species: germination ecophysiology and woody vegetation encroachment processes in Borana, southern Ethiopia (main supervisor: Tesfaye Abebe, Hawassa University)

2019 – 2024      G. Msaki: More than pollutant removal: constructed wetlands and waste stabilization ponds as biodiversity hotspots in Tanzania (main supervisor: K. Njau, NM-AIST)