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Dr. Morgan J. Kr眉ger

Lecturer
Name: Morgan Kr眉ger
Location: D2 Lab 239 Auckland Park Kingsway Campus
Botany & Plant Biotechnology Academic Staff听 Staff Members

Contact Details:
Tel: +27(0)11 559 4689

Email:听mkruger@uj.ac.za

About Dr. Morgan J. Kr眉ger

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Fields of research

Plant population and community ecology

 

Research focus

Dr. Kr眉ger is a plant ecologist, with a particular interest in population and community ecology. Her research to date has focused primarily on the relationship between inter- and intra-specific biotic interactions, how the outcome of these interactions changes in relation to changing abiotic conditions, and how the fine-scale impact of these interactions scale-up to influence broader community patterns. During her B.Sc. (Honours) degree, she became interested in the impact of biotic interactions on species鈥� performance, survival, and distributions. Subsequently, for her M.Sc., she examined the dynamics of insect-host plant interactions and the importance of biotic interactions in mediating species鈥� current and future projected distributions. For her Ph.D., Dr. Kr眉ger examined the impact of biotic interactions (both within species and bidirectionally between species) on species鈥� performances and distributions, using sub-Antarctic Marion Island as a model system. She revealed several key ecological findings, with implications for understanding plant-plant interactions in abiotically-severe environments. As Dr. Kr眉ger has moved forward in her career, she has developed an interest in multidisciplinary collaborative research (both nationally and internationally; current collaborators listed below). She is currently involved in a multi-disciplinary study, which uses genomics in conjunction with ecological data and an engineering model of wind flow to understand species鈥� range expansion rates and the drivers (both biotic and abiotic) of observed ecological and genetic patterns in a keystone species. A second project involves using ecological niche modelling (SDM) and phylogenetics to understand African sea snail (Afrolittorina) distributions. Dr. Kr眉ger is also working on a project which aims to advance our understanding of the ecological impacts of climate change using spatial variation in plant functional traits, community composition and ecosystem processes across multiple spatial scales in alpine grasslands. This project more broadly deals with the sustainability of subsistence pastoralism under climate change.

 

Current collaborators:

National collaborators:

  • Peter C. le Roux: 欧美福利100000 of Pretoria
  • Peter R. Teske: 欧美福利100000 of Johannesburg
  • Bettine Jansen van Vuuren: 欧美福利100000 of Johannesburg
  • Sally Archibald: WITS 欧美福利100000
  • Frances Siebert: North-West 欧美福利100000
  • Gerhard du Preez: North-West 欧美福利100000

International collaborators:

  • Julia Kemppinen: 欧美福利100000 of Oulu, Finland.
  • Pekka Niittynen: 欧美福利100000 of Jyv盲skyl盲, Finland.

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Teaching Activities

Plant diversity (BOT01B1)

Publications

  • Buyens, I.P.R., 搁补补迟丑-碍谤眉驳别谤, M.J., Haddad, W.A., and le Roux, P.C. (2023) Fine-scale variation in the effect of the cushion plant Azorella selago on vascular plants, mosses, hepatics and lichens in the sub-Antarctic. Journal of Vegetation Science, 34, e13200. DOI:

 

  • Emami-Khoyi, A., Jooste, C.M., Wasserman, R.J., Dalu, T., 搁补补迟丑-碍谤眉驳别谤, M.J., Jansen van Vuuren, B., and Teske, P.R. (2023) Persistent effects of historical sea levels on the population structure of a temporary wetland copepod. Freshwater Biology, 68, 1442-1452. DOI:

 

  • Burger, D.A., van der Merwe, S., Lesaffre, E., le Roux, P.C., and 搁补补迟丑-碍谤眉驳别谤,J. (2023) A robust mixed-effects parametric quantile regression model for continuous proportions: quantifying the constraints to vitality in cushion plants. Statistica Neerlandica, 77, 444-470. DOI:

 

  • 搁补补迟丑-碍谤眉驳别谤, M.J., Sch枚b C., McGeoch, M.A., Burger, D.A., Strydom, T., and le Roux, P.C. (2023) Long-term spatially-replicated data show no physical cost to a benefactor species in a facilitative plant-plant interaction. Oikos, e09617. DOI: .

 

  • 搁补补迟丑-碍谤眉驳别谤, M.J., Sch枚b, C., McGeoch, M.A., and le Roux, P.C. (2021) Inter-specific facilitation mediates the outcome of intra-specific interactions across an elevational gradient. Ecology, 102, e03200. DOI:

 

  • 搁补补迟丑-碍谤眉驳别谤, M.J., McGeoch, M.A., Sch枚b, C., Greve, M. and le Roux, P.C. (2019) Positive plant鈥損lant interactions expand the upper distributional limits of some vascular plant species. Ecosphere, 10, e02820. DOI:

 

  • Raath, M.J., le Roux, P.C., Veldtman, R., and Greve, M. (2018) Incorporating biotic interactions in the distribution models of African wild silk moths (Gonometa species, Lasiocampidae) using different representations of modelled host tree distributions. Austral Ecology, 43, 316-327. DOI:

 

  • Raath, M.J., le Roux, P.C., Veldtman, R., Campbell, H., Buyens, I.P.R., and Greve, M. (2017) Empty Gonometa postica cocoons function as nest sites and shelters for arboreal ants. Journal of Arid Environments, 14, 42-47. DOI:

 

  • van der Mescht, L., le Roux, P.C., Matthee, C.A., Raath, M.J., and Matthee, S. (2016) The influence of life history characteristics on flea (Siphonaptera) species distribution models. Parasites & Vectors, 9, 178. DOI:

 

Bulletin contributions/popular articles

  • 搁补补迟丑-碍谤眉驳别谤, M.J., Sch枚b, C., McGeoch, M.A., and le Roux, P.C. (2021) Inter-specific facilitation mediates the outcome of intra-specific interactions across an elevational gradient. Bulletin of the Ecological Society of America, 102, e01806. DOI: