Structured population models of herbivorous zooplankton

E. McCauley, R.M. Nisbet, A. de Roos, W.W. Murdoch, William Gurney

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

In this paper, we investigate whether a stage-structured population model can explain major features of dynamics of the herbivores Daphnia galeata and Bosmina longirostris reared under controlled laboratory conditions. Model parameters are determined from independent individual-based information gleaned from the literature on feeding, growth, reproduction, and survivorship of these herbivores. We tested predictions of our model against published observations on the dynamics of laboratory populations. The feeding protocols used in these experiments present a highly dynamic food environment that rigorously challenges the ability of stage-structured models to predict the dynamics of populations as they approach equilibrium. For both herbivore species, the models correctly predict feasible equilibria and some features of their dynamics (e.g., periodicity, cycle amplitude, demography, and fecundity) for experiments in which the species were raised in isolation and food transfers were relatively frequent (at least one transfer per instar). With frequent food transfers, the model also correctly predicts coexistence of the herbivores during competition experiments and suggests a novel mechanism for coexistence. The model fails to predict correctly single-species dynamics and the outcome of competition in experiments where food transfers were infrequent and utilization of internal reserves by individuals in the populations must have been high.
LanguageEnglish
Pages479-501
Number of pages23
JournalEcological Monographs
Volume66
Issue number4
Publication statusPublished - Nov 1996

Fingerprint

zooplankton
herbivore
herbivores
food
coexistence
experiment
Daphnia galeata
survivorship
demography
periodicity
fecundity
population dynamics
instars
survival rate
prediction
laboratory

Keywords

  • Daphnia
  • population model
  • single-species dynamics
  • herbivores

Cite this

McCauley, E., Nisbet, R. M., de Roos, A., Murdoch, W. W., & Gurney, W. (1996). Structured population models of herbivorous zooplankton. Ecological Monographs, 66(4), 479-501.
McCauley, E. ; Nisbet, R.M. ; de Roos, A. ; Murdoch, W.W. ; Gurney, William. / Structured population models of herbivorous zooplankton. In: Ecological Monographs. 1996 ; Vol. 66, No. 4. pp. 479-501.
@article{4652332dde774190879aad928e3ba7c7,
title = "Structured population models of herbivorous zooplankton",
abstract = "In this paper, we investigate whether a stage-structured population model can explain major features of dynamics of the herbivores Daphnia galeata and Bosmina longirostris reared under controlled laboratory conditions. Model parameters are determined from independent individual-based information gleaned from the literature on feeding, growth, reproduction, and survivorship of these herbivores. We tested predictions of our model against published observations on the dynamics of laboratory populations. The feeding protocols used in these experiments present a highly dynamic food environment that rigorously challenges the ability of stage-structured models to predict the dynamics of populations as they approach equilibrium. For both herbivore species, the models correctly predict feasible equilibria and some features of their dynamics (e.g., periodicity, cycle amplitude, demography, and fecundity) for experiments in which the species were raised in isolation and food transfers were relatively frequent (at least one transfer per instar). With frequent food transfers, the model also correctly predicts coexistence of the herbivores during competition experiments and suggests a novel mechanism for coexistence. The model fails to predict correctly single-species dynamics and the outcome of competition in experiments where food transfers were infrequent and utilization of internal reserves by individuals in the populations must have been high.",
keywords = "Daphnia, population model, single-species dynamics, herbivores",
author = "E. McCauley and R.M. Nisbet and {de Roos}, A. and W.W. Murdoch and William Gurney",
year = "1996",
month = "11",
language = "English",
volume = "66",
pages = "479--501",
journal = "Ecological Monographs",
issn = "0012-9615",
number = "4",

}

McCauley, E, Nisbet, RM, de Roos, A, Murdoch, WW & Gurney, W 1996, 'Structured population models of herbivorous zooplankton' Ecological Monographs, vol. 66, no. 4, pp. 479-501.

Structured population models of herbivorous zooplankton. / McCauley, E.; Nisbet, R.M. ; de Roos, A.; Murdoch, W.W.; Gurney, William.

In: Ecological Monographs, Vol. 66, No. 4, 11.1996, p. 479-501.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Structured population models of herbivorous zooplankton

AU - McCauley, E.

AU - Nisbet, R.M.

AU - de Roos, A.

AU - Murdoch, W.W.

AU - Gurney, William

PY - 1996/11

Y1 - 1996/11

N2 - In this paper, we investigate whether a stage-structured population model can explain major features of dynamics of the herbivores Daphnia galeata and Bosmina longirostris reared under controlled laboratory conditions. Model parameters are determined from independent individual-based information gleaned from the literature on feeding, growth, reproduction, and survivorship of these herbivores. We tested predictions of our model against published observations on the dynamics of laboratory populations. The feeding protocols used in these experiments present a highly dynamic food environment that rigorously challenges the ability of stage-structured models to predict the dynamics of populations as they approach equilibrium. For both herbivore species, the models correctly predict feasible equilibria and some features of their dynamics (e.g., periodicity, cycle amplitude, demography, and fecundity) for experiments in which the species were raised in isolation and food transfers were relatively frequent (at least one transfer per instar). With frequent food transfers, the model also correctly predicts coexistence of the herbivores during competition experiments and suggests a novel mechanism for coexistence. The model fails to predict correctly single-species dynamics and the outcome of competition in experiments where food transfers were infrequent and utilization of internal reserves by individuals in the populations must have been high.

AB - In this paper, we investigate whether a stage-structured population model can explain major features of dynamics of the herbivores Daphnia galeata and Bosmina longirostris reared under controlled laboratory conditions. Model parameters are determined from independent individual-based information gleaned from the literature on feeding, growth, reproduction, and survivorship of these herbivores. We tested predictions of our model against published observations on the dynamics of laboratory populations. The feeding protocols used in these experiments present a highly dynamic food environment that rigorously challenges the ability of stage-structured models to predict the dynamics of populations as they approach equilibrium. For both herbivore species, the models correctly predict feasible equilibria and some features of their dynamics (e.g., periodicity, cycle amplitude, demography, and fecundity) for experiments in which the species were raised in isolation and food transfers were relatively frequent (at least one transfer per instar). With frequent food transfers, the model also correctly predicts coexistence of the herbivores during competition experiments and suggests a novel mechanism for coexistence. The model fails to predict correctly single-species dynamics and the outcome of competition in experiments where food transfers were infrequent and utilization of internal reserves by individuals in the populations must have been high.

KW - Daphnia

KW - population model

KW - single-species dynamics

KW - herbivores

UR - http://www.jstor.org/stable/2963491

M3 - Article

VL - 66

SP - 479

EP - 501

JO - Ecological Monographs

T2 - Ecological Monographs

JF - Ecological Monographs

SN - 0012-9615

IS - 4

ER -

McCauley E, Nisbet RM, de Roos A, Murdoch WW, Gurney W. Structured population models of herbivorous zooplankton. Ecological Monographs. 1996 Nov;66(4):479-501.