American Journal of Life Sciences

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The Effects of Population Density and Individual Diversity on Time and Energy Budgets of Animals

Received: 27 March 2013    Accepted:     Published: 10 April 2013
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Abstract

The effects of animal density, spatial heterogeneity, and diversity in individual responses to population density on daily time and energy budgets were studied by means of a simple time-energy model. The cost of interactions between individuals was expressed as a reduction of the time that an animal may spend for feeding and other activities. The value of daily production rate would decrease with the increase in density and/or in food availability. In this case, production rate would be a convex function of population density as well as of individual tolerance to the presence of other animals and the size of individual range. Therefore, under unfavourable conditions (high mean density and/or low mean food availability) both spatial heterogeneity and diversity in individual responses to the presence of neighbouring animals would lead to an increase in the mean production rate.

DOI 10.11648/j.ajls.20130102.14
Published in American Journal of Life Sciences (Volume 1, Issue 2, April 2013)
Page(s) 43-48
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Population density; Diversity; Time Budget, Energy Budget

References
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[2] Dol'nik V.R. (1982). Methods of time and energy budgets study. In: Time and energy budgets in free-living birds Ed. V.R. Dol'nik Zoologicheskii Institut AN SSSR, Leningrad, pp. 3-37 (in Russian).
[3] Holling C.S. (1965). The functional response of predators to prey density and its role in mimicry and population regulation. Mem. Entomol. Soc. Canada, 45, 1-60.
[4] Houston A.I. and McNamara J. (1990). The effect of envi-ronmental variability on growth. -Oikos , 59, 15-20.
[5] Gilliam J.F. and Frazer D.F. 1987. Habitat selection under predation hazard: test of a model with foraging minnows. Ecology, 68, 1856-1862.
[6] Korytin N.S., Benenson I.E., Bolshakov V.N., and Kryaz-himskii F.V. 1992. A rational strategy of exploration of red fox populations with multiple equilibrium states. Trans. Congr. Int. Union Game Biol. , 18, 551-554.
[7] Le Boulenge E. (1977). Influence of social factors on the metabolism of laboratory mice. - Bull. Acad. Polon. Sci., Ser. Sci. Biol., 25, 591-595.
[8] McNamara J.M. and Houston A.I. (1987). A general frame-work for understanding the effects of variability and inter-ruptions inforaging behaviour. Acta Biotheoretica, 36, 3-22.
[9] Mangel M. and Clark C.W. (1986). Towards a unified foraging theory. Ecology, 67, 1127-1138.
[10] Myrcha A., Szwykowska M.M. (1969). Interrelations between dominance in the population and the level of metabolism in white mice males. Bull.Acad. Polon. Sci., Ser. Sci. Biol. 17, 599-601.
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[12] Stephens D.W. and Krebs J.R. (1986). Foraging Theory. Princeton Univ. Press. Princeton.
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Author Information
  • Institute of Plant & Animal Ecology, Ural Branch of RAS, 202, 8 Marta, Ekaterinburg, Russia

  • Institute of Plant & Animal Ecology, Ural Branch of RAS, 202, 8 Marta, Ekaterinburg, Russia

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    Feodor V. Kryazhimskiy, Kirill V. Maklakov. (2013). The Effects of Population Density and Individual Diversity on Time and Energy Budgets of Animals. American Journal of Life Sciences, 1(2), 43-48. https://doi.org/10.11648/j.ajls.20130102.14

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    Feodor V. Kryazhimskiy; Kirill V. Maklakov. The Effects of Population Density and Individual Diversity on Time and Energy Budgets of Animals. Am. J. Life Sci. 2013, 1(2), 43-48. doi: 10.11648/j.ajls.20130102.14

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    AMA Style

    Feodor V. Kryazhimskiy, Kirill V. Maklakov. The Effects of Population Density and Individual Diversity on Time and Energy Budgets of Animals. Am J Life Sci. 2013;1(2):43-48. doi: 10.11648/j.ajls.20130102.14

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  • @article{10.11648/j.ajls.20130102.14,
      author = {Feodor V. Kryazhimskiy and Kirill V. Maklakov},
      title = {The Effects of Population Density and Individual Diversity on Time and Energy Budgets of Animals},
      journal = {American Journal of Life Sciences},
      volume = {1},
      number = {2},
      pages = {43-48},
      doi = {10.11648/j.ajls.20130102.14},
      url = {https://doi.org/10.11648/j.ajls.20130102.14},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajls.20130102.14},
      abstract = {The effects of animal density, spatial heterogeneity, and diversity in individual responses to population density on daily time and energy budgets were studied by means of a simple time-energy model. The cost of interactions between individuals was expressed as a reduction of the time that an animal may spend for feeding and other activities. The value of daily production rate would decrease with the increase in density and/or in food availability. In this case, production rate would be a convex function of population density as well as of individual tolerance to the presence of other animals and the size of individual range. Therefore, under unfavourable conditions (high mean density and/or low mean food availability) both spatial heterogeneity and diversity in individual responses to the presence of neighbouring animals would lead to an increase in the mean production rate.},
     year = {2013}
    }
    

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    AB  - The effects of animal density, spatial heterogeneity, and diversity in individual responses to population density on daily time and energy budgets were studied by means of a simple time-energy model. The cost of interactions between individuals was expressed as a reduction of the time that an animal may spend for feeding and other activities. The value of daily production rate would decrease with the increase in density and/or in food availability. In this case, production rate would be a convex function of population density as well as of individual tolerance to the presence of other animals and the size of individual range. Therefore, under unfavourable conditions (high mean density and/or low mean food availability) both spatial heterogeneity and diversity in individual responses to the presence of neighbouring animals would lead to an increase in the mean production rate.
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