Sarah Amundrud

Ph.D. student

Research on ecological effects of climate change has traditionally focused on direct, physiological effects on species; however, we are beginning to recognize its potential to alter ecological communities and ecosystem processes indirectly, by affecting species interactions. Foundation and keystone species exert particularly strong effect on communities, and thus present a high potential to mediate ecological effects of climate change. In Monteverde, Costa Rica, water-filled bromeliads provide habitats (i.e. are foundation species) for diverse invertebrate food webs and occur along a climate (elevation) gradient. The keystone predator (damselfly-larvae) is absent from bromeliads in the relatively cool and wet high elevation bromeliads. Thus, these miniature ecosystems are ideal systems to examine the relative importance of direct and indirect ecological effects of climate change. I am combining observational, experimental, and modeling techniques to tease apart which factors best explain community composition: climate; habitat; or predators. Moreover, I use modeling techniques to predict community and ecosystem changes under future climate scenarios.

Zoology Travel Award

2017
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For Research

NSERC Michael Smith Foreign Study Supplement (CGS-MSFSS)

2016
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For Research

Killam Doctoral Scholarship

2016
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For Research

GoGlobal Self-Directed Research Award

2016
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For Research

NSERC CGS-D

2016
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For Research

UBC Four Year Doctoral Fellowship

2015
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For Research

Best M.Sc. Thesis in Zoology Prize (UBC)

2015
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For Other

BRITE Internship Award

2015
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For Research

BRITE Graduate Fellowship

2014
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For Research

Zoology Travel Award

2013
/
For Research
Disentangling how climate change can affect an aquatic food web by combining multiple experimental approaches
Global Change Biology
Amundrud, S.A., and Srivastava, D.S.
2019
Drought alters the trophic role of an opportunistic generalist in an aquatic ecosystem
Oecologia 189: 733-744
Amundrud, S. A., Clay-Smith, S. A., Flynn, B. L., Higgins, K. E., Reich, M. S., Wiens, D. R. H, and D. S. Srivastava
2019
Dispersal barriers and climate determine the geographic distribution ofthe damselfly Mecistogaster modesta
Freshwater Biology 63: 214–223
Amundrud, S. A., M. Videla, and D. S. Srivastava
2018
Phytotelm bromeliads as model systems to study ecosystem responses to environmental stress
Bulletin of the Ecological Society of America 97: 403-405
Amundrud, S. L., and Srivastava, D. S
2016
Trophic interactions determine the effects of drought on an aquatic ecosystem
Ecology 97: 1475–1483
Amundrud, S. L., and Srivastava, D. S
2016
Drought sensitivity predicts habitat size sensitivity in an aquatic ecosystem
Ecology 96: 1957-1965
Amundrud, S. L., and Srivastava, D. S
2015
Indirect effects of predators control herbivore richness and abundance in a benthic eelgrass (Zostera marina) mesograzer community
Journal of Animal Ecology 84: 1092-1102
Amundrud, S. L., Srivastava, D. S., and O'Connor, M. I
2015
Spatial variance in soil microarthropod communities: niche, neutrality or stochasticity?
Ecoscience 21 (3-4): 405-418
Chen, Y., Amundrud, S. L., and Srivastava, D. S
2014