Peter A Abrams

Summary

Country: Canada

Publications

  1. ncbi Dynamics and responses to mortality rates of competing predators undergoing predator-prey cycles
    Peter A Abrams
    Department of Zoology, The University of Toronto, 25 Harbord Street, Toronto, Ont, Canada M5S 3G5
    Theor Popul Biol 64:163-76. 2003
  2. ncbi Evolutionary biology: mortality and lifespan
    Peter A Abrams
    Nature 431:1048. 2004
  3. ncbi The prerequisites for and likelihood of generalist-specialist coexistence
    Peter A Abrams
    Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Am Nat 167:329-42. 2006
  4. doi Biphasic growth in fish I: theoretical foundations
    Christopher Quince
    Department of Ecology and Evolutionary Biology, 25 Harbord Street, University of Toronto, Toronto, ON M5S3G5, Canada
    J Theor Biol 254:197-206. 2008
  5. ncbi Coexistence and limiting similarity of consumer species competing for a linear array of resources
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Ecology 90:812-22. 2009
  6. doi Prey persistence and abundance in systems with intraguild predation and type-2 functional responses
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord Street Toronto, ON, Canada
    J Theor Biol 264:1033-42. 2010
  7. ncbi Defining and measuring the impact of dynamic traits on interspecific interactions
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, Zoology Building, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S3G5, Canada
    Ecology 88:2555-62. 2007
  8. doi Adaptive changes in prey vulnerability shape the response of predator populations to mortality
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Zoology Building, 25 Harbord Street, Toronto, ON, Canada M5S 3G5
    J Theor Biol 261:294-304. 2009
  9. doi When does greater mortality increase population size? The long history and diverse mechanisms underlying the hydra effect
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
    Ecol Lett 12:462-74. 2009
  10. ncbi Dynamic versus instantaneous models of diet choice
    Brian O Ma
    Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario, M5S 3G5, Canada
    Am Nat 162:668-84. 2003

Detail Information

Publications37

  1. ncbi Dynamics and responses to mortality rates of competing predators undergoing predator-prey cycles
    Peter A Abrams
    Department of Zoology, The University of Toronto, 25 Harbord Street, Toronto, Ont, Canada M5S 3G5
    Theor Popul Biol 64:163-76. 2003
    ..The patterns described here occur in many other competition models in which there are cycles and differences in the linearity of the responses of consumers to their resources...
  2. ncbi Evolutionary biology: mortality and lifespan
    Peter A Abrams
    Nature 431:1048. 2004
  3. ncbi The prerequisites for and likelihood of generalist-specialist coexistence
    Peter A Abrams
    Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Am Nat 167:329-42. 2006
    ..Adaptive behavior increases the generalist's ability to both synchronize and dampen resource cycles...
  4. doi Biphasic growth in fish I: theoretical foundations
    Christopher Quince
    Department of Ecology and Evolutionary Biology, 25 Harbord Street, University of Toronto, Toronto, ON M5S3G5, Canada
    J Theor Biol 254:197-206. 2008
    ....
  5. ncbi Coexistence and limiting similarity of consumer species competing for a linear array of resources
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Ecology 90:812-22. 2009
    ..These results suggest that competition may lead to uneven spacing of utilization curves. The implications and range of applicability of the models are discussed...
  6. doi Prey persistence and abundance in systems with intraguild predation and type-2 functional responses
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord Street Toronto, ON, Canada
    J Theor Biol 264:1033-42. 2010
    ....
  7. ncbi Defining and measuring the impact of dynamic traits on interspecific interactions
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, Zoology Building, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S3G5, Canada
    Ecology 88:2555-62. 2007
    ..Solutions to these problems and the meaning of the meta-analyses are discussed...
  8. doi Adaptive changes in prey vulnerability shape the response of predator populations to mortality
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Zoology Building, 25 Harbord Street, Toronto, ON, Canada M5S 3G5
    J Theor Biol 261:294-304. 2009
    ..These results argue against using single-species models of density dependent growth to manage predatory species, and illustrate the importance of incorporating anti-predator behavior into models in applied population ecology...
  9. doi When does greater mortality increase population size? The long history and diverse mechanisms underlying the hydra effect
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
    Ecol Lett 12:462-74. 2009
    ..Population structure can promote hydra effects by allowing separation of the timing of density dependence and mortality, although stage-specific density dependence usually decreases hydra effects...
  10. ncbi Dynamic versus instantaneous models of diet choice
    Brian O Ma
    Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario, M5S 3G5, Canada
    Am Nat 162:668-84. 2003
    ..The results suggest possible behavioral mechanisms leading to complex population dynamics and highlight the need for more empirical study of the dynamics of behavioral change...
  11. ncbi Transient dynamics limit the effectiveness of keystone predation in bringing about coexistence
    Erik G Noonburg
    Department of Zoology, University of Toronto, Toronto, Ontario M5S 3G5, Canada
    Am Nat 165:322-35. 2005
    ..Similar transient crashes are likely to occur in other food webs and food web models...
  12. doi Does consumption rate scale superlinearly?
    Henrique C Giacomini
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord St, Toronto, Ontario M5S 3G5, Canada
    Nature 493:E1-2; discussion E2-3. 2013
    ..To resolve this contradiction, progress in both fields is probably required, including new empirical studies in which consumption rate, metabolism and dimensionality are examined directly under natural conditions...
  13. doi Modifying modifiers: what happens when interspecific interactions interact?
    Antonio J Golubski
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord St, Toronto, ON M5S 3G5, Canada
    J Anim Ecol 80:1097-108. 2011
    ..Nevertheless, a complete understanding of their effects may require theory that distinguishes different 'functional groups' of modifiers and addresses how these are structured according to trophic relationships...
  14. doi The roles of spatial heterogeneity and adaptive movement in stabilizing (or destabilizing) simple metacommunities
    Lasse Ruokolainen
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ont, Canada M5S 3G5
    J Theor Biol 291:76-87. 2011
    ..High rates of random movement can lead to greater stability than adaptive movement when consumers are very efficient...
  15. ncbi The impact of mortality on predator population size and stability in systems with stage-structured prey
    Peter A Abrams
    Department of Zoology, University of Toronto, 25 Harbord St, Toronto, Ont, Canada, M5S 3G5
    Theor Popul Biol 68:253-66. 2005
    ....
  16. ncbi Does competition between resources change the competition between their consumers to mutualism? Variations on two themes by Vandermeer
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Zoology Building, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Am Nat 170:744-57. 2007
    ..Such destabilization can cause negative indirect interactions between specialist consumers having no overlap in resource use...
  17. ncbi Habitat choice in predator-prey systems: spatial instability due to interacting adaptive movements
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, Zoology Building, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Am Nat 169:581-94. 2007
    ..These models show that the coupled processes of moving to habitats with higher fitness in predator and prey may often fail to produce ideal free distributions across habitats...
  18. ncbi The role of behavioral dynamics in determining the patch distributions of interacting species
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3G5, Canada
    Am Nat 169:505-18. 2007
    ....
  19. ncbi The effects of switching behavior on the evolutionary diversification of generalist consumers
    Peter A Abrams
    Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Am Nat 168:645-59. 2006
    ..This level of diversity supported by only two resources is not seen in the absence of behavioral choice and resource cycles. The results suggest major roles for both behavior and environmental variation in adaptive radiation...
  20. doi Competition-similarity relationships and the nonlinearity of competitive effects in consumer-resource systems
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario M5S 3G5, Canada
    Am Nat 172:463-74. 2008
    ..Utilization curve shape and resource growth functions can have major effects on competition-similarity relationships. A variety of previous theoretical findings need to be reassessed in light of these results...
  21. doi The eco-evolutionary responses of a generalist consumer to resource competition
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, M5S 3G5, Canada
    Evolution 66:3130-43. 2012
    ..Some of these predictions differ qualitatively in alternative scenarios involving sustained variation in population densities or nutritionally essential resources...
  22. ncbi The prevalence of asymmetrical indirect effects in two-host-one-parasitoid systems
    Chad E Brassil
    Department of Zoology, University of Toronto, 25 Harbord St, Toronto, Ont, Canada M5S 3G5
    Theor Popul Biol 66:71-82. 2004
    ..However, the absence of positive indirect effects in empirical studies constitutes a puzzling inconsistency between the empirical and theoretical literatures...
  23. doi Determining the functional form of density dependence: deductive approaches for consumer-resource systems having a single resource
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3G5, Canada
    Am Nat 174:321-30. 2009
    ..This has important implications for management and conservation of natural populations...
  24. doi Simple life-history omnivory: responses to enrichment and harvesting in systems with intraguild predation
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3G5, Canada
    Am Nat 178:305-19. 2011
    ..They suggest that life-history omnivory may be one of the primary reasons why exploited populations undergo sudden collapses and why collapsed populations fail to recover in spite of large reductions in the exploitation rate...
  25. ncbi Adaptive change in the resource-exploitation traits of a generalist consumer: the evolution and coexistence of generalists and specialists
    Peter A Abrams
    Department of Zoology, University of Toronto, Ontario, Canada
    Evolution 60:427-39. 2006
    ..Exogenous cycles driven by environmental variation in resource growth rates appear to be much less likely to produce a mixture of generalists and specialists than are endogenous consumer-resource cycles...
  26. doi A multi-scale comparison of trait linkages to environmental and spatial variables in fish communities across a large freshwater lake
    Angela L Strecker
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, M5S 3G5, Canada
    Oecologia 166:819-31. 2011
    ..Overall, a trait-based hierarchical framework may be a useful conservation tool, as it highlights the multi-scaled interactive effect of variables over a large landscape...
  27. ncbi Disruptive selection and then what?
    Claus Rueffler
    Department of Zoology, University of Toronto, 25 Harbord Street, Toronto, Ontario, Canada, M5S 3G5
    Trends Ecol Evol 21:238-45. 2006
    ..We also identify factors influencing the likelihoods of these different outcomes...
  28. doi Biphasic growth in fish II: empirical assessment
    Christopher Quince
    Department of Ecology and Evolutionary Biology, 25 Harbord Street, University of Toronto, Toronto, ON M5S3G5, Canada
    J Theor Biol 254:207-14. 2008
    ..We show that these estimates are strongly correlated with independent estimates of the adult mortality experienced by these populations...
  29. ncbi Measuring the impact of dynamic antipredator traits on predator-prey-resource interactions
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada
    Ecology 89:1640-9. 2008
    ..Most scalar measures of effects are sensitive to experimental duration and initial densities. Use of a wider range of experimental designs to measure trait-related effects is called for...
  30. doi Determinants of the strength of disruptive and/or divergent selection arising from resource competition
    Peter A Abrams
    Department of Ecology and Evolutionary Biology, University of Toronto, 25 Harbord St, Toronto, ON M5S 3G5 Canada
    Evolution 62:1571-86. 2008
    ..The results may explain some contradictory experimental findings regarding the effect of consumer mortality on the strength of disruptive selection...
  31. doi Evolution of the storage effect
    Peter A Abrams
    Department of Ecology and Evolution, University of Toronto, 25 Harbord St, Toronto, Ontario M5S 3G5, Canada
    Evolution 67:315-27. 2013
    ..The findings show that storage can evolve in a manner and under conditions similar to other types of resource partitioning...
  32. ncbi The impact of consumer-resource cycles on the coexistence of competing consumers
    Peter A Abrams
    Department of Zoology, University of Toronto, Toronto, Ontario, Canada M5S 3G5
    Theor Popul Biol 62:281-95. 2002
    ....
  33. ncbi The role of size-specific predation in the evolution and diversification of prey life histories
    Troy Day
    Department of Zoology, University of Toronto, ON, Canada
    Evolution 56:877-87. 2002
    ..Moreover, under strong coupling it is also possible for natural selection to favor an evolutionary diversification of life histories, possibly resulting in two coexisting species with divergent life-history strategies...
  34. ncbi Coexistence of cycling and dispersing consumer species: Armstrong and McGehee in space
    William G Wilson
    Department of Biology, Duke University, Durham, North Carolina 27708 0325, USA
    Am Nat 165:193-205. 2005
    ....
  35. ncbi Maximal yields from multispecies fisheries systems: rules for systems with multiple trophic levels
    Hiroyuki Matsuda
    Faculty of Environment and Information Sciences, Yokohama National University, 79 7, Tokiwadai, Hodogaya ku, Yokohama, Kanagawa 240 8501 Japan
    Ecol Appl 16:225-37. 2006
    ..The reduction in total yield caused by such a constraint is modest for most food webs but can be over 90% in some cases. Independent harvesting of species within the web can also cause extinctions but is less likely to do so...
  36. doi Switching behavior, coexistence and diversification: comparing empirical community-wide evidence with theoretical predictions
    Jofre Carnicer
    Integrative Ecology Group, Estacion Biologica de Donana, Consejo Superior de Investigaciones Cientificas, Pabellón del Perú, Av María Luisa s n 41013, Sevilla, Spain
    Ecol Lett 11:802-8. 2008
    ..These patterns are consistent with theoretical predictions, suggesting a possible role of switching behaviour in promoting avian coexistence and diversification...
  37. ncbi Revisiting the classics: considering nonconsumptive effects in textbook examples of predator-prey interactions
    Barbara L Peckarsky
    Department of Zoology, 453 Birge Hall, University of Wisconsin, Madison, Wisconsin 53706, USA
    Ecology 89:2416-25. 2008
    ....