Monica Ann Geber

Professor Emeritus

Publications

Selected Publications

  • Eisen, K. E., A. C. Wruck, and M. A. Geber. 2020. Floral density and co-occurring congeners alter patterns of selection in annual plant communities. Evolution 74: 1682-1698.
  • James, A. R. M., T. E. Burnette, J. Mack, D. E. James, V. M. Eckhart, and M. A. Geber. 2020. Germination predicts spatial distribution and coexistence more than adult hydrological traits do in four closely related annual flowering plants. Journal of Ecology 108: 2584-2600.
  • Petipas, R. H., A. C. Wruck, and M. A. Geber. 2020. Microbe-mediated local adaptation to limestone barrens in context dependent. Ecology 101:e03092.
  • Eisen, K. E., and M. A. Geber. 2018. Ecological sorting and character displacement contribute to the structure of communities of Clarkia species. Journal of Evolutionary Biology 31:1440-1458.
  • Benning, J. W., Eckhart, V. M., M. A. Geber, and D. A. Moeller. 2018. Biotic interactions limit the geographic range of an annual plant: herbivory and phenology mediate fitness beyond a range margin. American Naturalist 192:786-797.
  • Moeller, D. A., R. D. Briscoe Runquist, M. A. Geber, C. Goodwillie, A. M. Moe, P-O Cheptou, C. G. Eckert, E. Elle, M. O. Johnston, S. Kalisz, J. K. Kelly, E. Porcher, R. H. Ree, R. D. Sargent, M. Vallejo-Marin, and A. A. Winn. 2017. Global biogeography of mating system variation in seed plants. Ecology Letters 20:375-384.
  • Briscoe Runquist, R. D., M. A. Geber, M. Pickett-Leonard, and D. A. Moeller. 2017. Mating system evolution under strong pollen limitation: evidence of disruptive selection through male and female fitness in Clarkia xantiana. American Naturalist 189:549-563.
  • Anderson, J. A., V. M. Eckhart, and M. A. Geber. 2015. Experimental studies of adaptation in Clarkia xantiana. III. Phenotypic selection across a subspecies border. Evolution 69:2249-2261.
  • Gould, Billie, S. McCouch, and M. A. Geber. 2015. De novo transcriptome assembly and identification of gene candidates for rapid evolution in response to soil aluminum tolerance in Anthoxanthum odoratum at the long-term Park Grass Experiment. PLoS One 10:e0124424; DOI: 10.1371/journal.pone.0124424.
  • Moeller, D. A., M. A. Geber, V. M. Eckhart, and P. Tiffin. 2012. Reduced pollinator service and elevated pollen limitation at the geographic range limit of an annual plant. Ecology 93:1036-1048.
  • Geber, M. A. Ecological and evolutionary limits on species geographic ranges. 2011. American Naturalist 178:S1-S5.
  • Eckhart, V. M, Geber, M. A., Morris, W. F., Fabio, E. S., Tiffin, P. L., and D. A. Moeller. 2011. The geography of demography: Long-term demographic studies and species distribution models reveal a species border limited by adaptation. American Naturalist 178:S26-S43.
  • Ellner, S. P., Geber, M. A., and N. G. Hairston Jr. Does rapid evolution matter? Measuring the rate of contemporary evolution and its impacts on ecological dynamics. 2011. Ecology Letters 14:603-614.
  • Moeller, D. A., Geber, M. A., and P. L. Tiffin. 2011. Population genetics and the evolution of geographic range limits in an annual plant. American Naturalist 178:S44-S61.
Klarman Hall
mag9@cornell.edu
607/254-4208

Education

Ph.D., University of Utah (1989)

M.Sc., Oregon State University (1982)

B.A., Reed College (1978)

 

Departments and programs

Keywords

Evolution and ecology of plant populations, limits to adaptation, plant mating systems and reproductive biology

Alexander S Flecker

Professor

Publications

  • Hammerschlag, N., O.J. Schmitz, A.S. Flecker, K. Lafferty, A. Sih, T.B. Atwood, A.J. Gallagher, D.J. Irschick, R. Skubel, and S.J. Cooke. 2019. Ecosystem function and services of aquatic predators in the Anthropocene. Trends in Ecology and Evolution 34(4):369-383
  • Simon, T., A. Binderup, A. Flecker, J. Gilliam, M. Marshall, S. Thomas, J. Travis, D. Reznick, and C. Pringle. 2019. Landscape patterns in top-down control of decomposition: omnivorous fish decouples a detrital-based trophic cascade. Ecology
  • Carvalho, D.R., A.S. Flecker, C.B.M. Alves, J.P. SParks, and P.S. Pompeu. 2019. Trophic responses to aquatic pollution of native and exotic livebearers fishes. Science of the Total Environment 681:503-515
  • Rosero-López, D., M.T. Walter, A.S. Flecker, P. Llorte, B. De Biévre, D.P. González-Zeas, R. Calvez, and O. Dangles. 2019. Streamlined eco-engineering approach helps define environmental flows for tropical Andean headwaters. Freshwater Biology 64:1315-1325
  • Polato, N.R., B.A. Gill, A.A. Shah, M.M. Gray, K.L. Casner, A Barthelet, P.W. Messer, M. Simmons, J.M. Guayasamin, A.C. Encalada, B.C. Kondratieff, A.S. Flecker, A.A. Thomas, C.K Ghalambor, N.L. Poff, W.C. Funk, and K.R. Zamudio. 2018. Narrow thermal tolerance and low dispersal drive higher speciation in tropical mountains. Proceedings of the National Academy of Sciences 115: 12471-12476
  • Wu, X., J. Gomes-Selman, Q. Shi, Y. Xue, R. García-Villacorta, E. Anderson, S. Sethi, S. Steinschneider, A. Flecker, and C.P. Gomes.   2018.  Efficiently approximating the Pareto Frontier: hydropower dam placement in the Amazon Basin.  Proc. 32nd AAAI Conference on Artificial Intelligence.
  • Shi, Q., J.M. Gomes-Selman, R. García-Villacorta, S. Sethi, A.S. Flecker, and C.P. Gomes. 2018. Efficiently optimizing for dendritic connectivity on tree-structured networks in a multi-objective framework. Submitted to: Proceedings of ACM Conference on Computing and Sustainable Societies. COMPASS 2018: 26:1-26:8; https://doi.org/10.1145/3209811.3209878. 
  • Larson, E.I., N.L. Poff, C.L. Atkinson, and A.S. Flecker.  2018.  Extreme flooding decreases stream consumer autochthony by increasing detrital resource availability.  Freshwater Biology.  https://doi.org/10.1111/fwb.13177. 
  • Dalton, C.M., K.E. Tracy, N.G. Hairston, Jr., and A.S. Flecker.  2018.  Disentangling the roles of predation risk and food deprivation in the nitrogen metabolism of consumers.  Ecology 99: 681–689; doi: 10.1002/ecy.2132.
  • Poff, N.L., E. Larson, P. Salerno, S. Morton, B. Kondratieff, A. Flecker, K. Zamudio, W.C. Funk.   2018.  Extreme streams: Species persistence mechanisms and evolutionary change in montane stream insect populations across a flood disturbance gradient.  Ecology Letters doi:10.1111/ele.12918.
  • Atkinson, C.L., A. Encalada, A. Rugenski, S. Thomas, A. Landeira-Dabarca, L. Poff, and A. Flecker.  2018.  Determinants of food resource assimilation by stream insects along a tropical elevation gradient.  Oecologia. 187:731-744. doi: 10.1007/s00442-018-4142-2. 
  • Vanni, M., et al.  2017.  A global database of nitrogen and phosphorus excretion rates of aquatic animals. Ecology DOI: 10.1002/ecy.1792.
  • Alexiades, A.V., A.S. Flecker, and C.E. Kraft.   2017.  Nonnative fish stocking alters stream ecosystem nutrient dynamics.   Ecological Applications 27:956-965. DOI: 10.1002/eap.1498.
  • Rubio-Gracia, F., et al.  2017. Combined effects of hydrologic alteration and cyprinid fish in mediating biogeochemical processes in a Mediterranean stream.  Science of the Total Environment 601–602 (2017) 1217–1225.  DOI:10.1016/j.scitotenv.2017.05.287.
  • Zandonà, E., C. Dalton, R. El-Sabaawi, J. Howard, M. Marshall, S. Kilham, D. Reznick, J. Travis, T.  Kohler, A. Flecker, S. Thomas, and C. Pringle.  2017.  Population variation in the trophic niche of the Trinidadian guppy from different predation regimes.  Scientific Reports 7: 5770; DOI:10.1038/s41598-017-06163-6
  • Boyero, L., et al.  2017.  Riparian plant litter quality increases with latitude.  Scientific Reports 7: 10562; DOI:10.1038/s41598-017-10640-3.  
  • Norman, B., et al.  2017.  Drivers of nitrogen transfer efficiencies in stream food webs across continents. Ecology 98: 3044–3055; DOI: 10.1002/ecy.2009.
  • Twining, C.W., D.C. Josephson, C.E. Kraft, J.T. Brenna, P. Lawrence, and A.S. Flecker.  2017.  Limited seasonal variation in food quality and foodweb structure in an Adirondack stream: insights from fatty acids. Freshwater Science 36:877-892. 
  • Shah, A., B. Gill, A. Encalada, A. Flecker, C. Funk, J. Guayasamin, B. Kondratieff, N.L. Poff, S. Thomas, K. Zamudio, and C. Ghalambor.  2017. Climate variability predicts thermal limits of aquatic insects across elevation and latitude.   Functional Ecology 31:2118-2127; doi: 10.1111/1365-2435.12906. 
  • Boyero, L., et al. 2016.  Biotic and abiotic variables influencing plant litter breakdown in streams: a global-scale study. Proceedings of the Royal Society B. 283:20152664; DOI: 10.1098/rspb.2015.2664.
  • Gill, B., B. Kondratieff, K. Casner, A.Encalada, A. Flecker, D. Gannon, C. Ghalambor, J. Guayasamin, L. Poff, M. Simmons, S. Thomas, K. Zamudio, and W.K. Funk.  2016.  Cryptic species diversity reveals biogeographic support for the ‘Mountain passes are higher in the tropics Hypothesis’. Proceedings of the Royal Society B 283: 20160552; DOI: 10.1098/rspb.2016.0553.   
  • Buchanan, B.P., D.A. Auerbach, R.A. McManamay, A.S. Flecker, J. Taylor, J A. Archibald, D.G. Fuka, and M.T. Walter.   2016.   Environmental flows in the context of unconventional natural gas development in the Marcellus Shale.  Ecological Applications 27: 37-55. DOI: 10.1002/eap.1425
  • Collins, S.M., S.A. Thomas, T. Heatherly II, K.L. MacNeill, A. Leduc, A. López-Sepulcre, B. Lamphere, R.W. El-Sabaawi, D.N. Reznick, C.M. Pringle, and A.S. Flecker.  2016. Fish introductions and light modulate food web fluxes in tropical streams: a whole-ecosystem experimental approach. Ecology 97: 3154–3166; DOI: 10.1002/ecy.1530.
  • Lessmann, J., et al.  2016.   Freshwater vertebrate and invertebrate diversity patterns in an Andean-Amazon basin: implications for conservation efforts. Neotropical Biodiversity 2: 99-114, DOI: 10.1080/23766808.2016.1222189
  • Auerbach, D. A., B.P. Buchanan, A.V. Alexiades, E.P. Anderson, A.C. Encalada, E.I. Larson, R.A. McManamay, G.L. Poe, M.T. Walter, and A.S. Flecker.  2016. Towards catchment classification in data-scarce regions.  Ecohydrology 9: 1235-1247. doi: 10.1002/eco.1721. 
  • Bassar, R.D., T. Heatherly II, M.C. Marshall, S.A. Thomas, A.S. Flecker, and D.N. Reznick.  2015. Population size structure dependent fitness and ecosystem consequences in Trinidadian guppies.   Journal of Animal Ecology 84: 955–968.  doi: 10.1111/1365-2656.12353.
  • Collins, S.M., T.J. Koher, S.A. Thomas, W.W. Fetzer and A.S. Flecker.  2015.  The importance of terrestrial subsidies in stream food webs varies along a stream size gradient. Oikos doi:10.1111/ oik.07213.
  • Twining, C.W., J.T. Brenna, N.G. Hairston Jr., and A.S. Flecker.  2015.  Highly unsaturated fatty acids in nature: what we know and what we need to learn.  Oikos 125: 749-760. doi: 10.1111/oik.02910.
  • Dodds, W. K., et al.  2014.  You are not always what we think you eat: selective assimilation across multiple whole-stream isotopic tracer studies. Ecology 95:2757-2767.
  • Capps, K. A., and A. S. Flecker. 2013. Invasive aquarium fish transform ecosystem nutrient dynamics.  Proceedings of the Royal Society B 280: 20131520. doi: 10.1098/rspb.2013.1520.
Klarman Hall
E211 Corson Hall
asf3@cornell.edu
607/254-4263

Education

Ph.D., Zoology, University of Maryland (1990)

M.S., Zoology, University of Maryland (1984)

B.S, Zoology, Oregon State University (1980)

Departments and programs

Links

Keywords

 

 

Food webs, tropical stream ecosystems, ecosystem engineers, ecological stoichiometry, ecosystem subsidies, eco-evolutionary interactions, fishes, biogeochemistry, biodiversity and ecosystem function

 

John Weaver Fitzpatrick

Professor; Louis Agassiz Fuertes Director Emeritus, Cornell Laboratory of Ornithology

Publications

  • Reynolds, M. D. et al. 2017. Dynamic conservation for migratory species. Science Advances 3:e1700707.
  • Aguillon, S. M. et al. 2017. Deconstructing isolation-by-distance: The genomic consequences of limited dispersal. PLOS Genetics 13: e1006911.
  • Chen, N., E.J. Cosgrove, R. Bowman, J.W. Fitzpatrick, and A.G. Clark. 2016. Genomic Consequences of Population Decline in the Endangered Florida Scrub-Jay. Current Biology 26:2974-2979.
  • Mills, J. A. et al. 2015. Archiving Primary Data: Solutions for Long-Term Studies. Trends in Ecology & Evolution 30:581-589.
  • Mumme, R. L., R. Bowman, M.S. Pruett, and J.W. Fitzpatrick. 2015. Natal territory size, group size, and body mass affect lifetime fitness in the cooperatively breeding Florida Scrub-Jay. AUK 132:634-646.
  • Sullivan, B. L. et al. 2014. The eBird enterprise: An integrated approach to development and application of citizen science. Biological Conservation 169:31-40.
  • Coulon, A., J.W. Fitzpatrick, R. Bowman, and I.J. Lovette. 2012. Mind the gap: genetic distance increases with habitat gap size in Florida scrub jays. Biology Letters 8:582-585. 
  • Piorkowski, M. D. et al. 2012. Research priorities for wind energy and migratory wildlife. Journal of Wildlife Management 76:451-456.
Klarman Hall
159 Sapsucker Woods
jwf7@cornell.edu
607/254-2449

Education

Ph.D. in Biology, Princeton University (1978)

M.A. in Biology, Harvard University (1974)

 

Departments and programs

Links

Keywords

 

 

Avian ecology, citizen science, conservation biology, conservation genetics, endangered species, ornithology, population biology

 

 

Stephen Paul Ellner

Horace White Professor of Ecology and Evolutionary Biology

Publications

For a complete list of publications, please see my Google scholar page here.

Klarman Hall
E339A Corson Hall
spe2@cornell.edu
607/254-4221

Education

Postdoctoral Fellow, Weizmann Institute (1984-1985)

Ph.D., Cornell University (1982)

B.A., University of California, Berkeley (1975)

 

Departments and programs

Links

Keywords

Coexistence, demography, infectious disease, structured populations.

Andre Alfons Dhondt

Professor and Edwin H. Morgens Professor of Ornithology, Cornell Laboratory of Ornithology

Klarman Hall
159 Sapsucker Woods
aad4@cornell.edu
607/254-2445

Education

Ph.D., Biology, Ghent State University, Belgium (1970)

Aggregaat Hoger Secundair Onderwijs, Ghent State University, Belgium (1968) 

Licentiaat Zoology, Ghent State University, Belgium (1966)

Departments and programs

Links

Keywords

Population ecology, behavioral ecology, disease ecology, evolutionary ecology, ornithology

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