Reindeer management and winter pastures in the presence of suplementary feeding and government subsidies

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

We apply an age- and sex-structured reindeer-lichen model to examine the role of winter pastures, pasture rotation, and supplementary feeding on economically optimal reindeer management. The model includes 17 age classes of females, 13 classes of males and a detailed description of winter energy resource utilization by the reindeer population. Reproduction is specified by a modified harmonic mean mating system and the diet choice between different winter energy resources follows the principles of the optimal foraging theory. Wintertime energy intake defines an individual's weight decrease and its consequences on mortality and reproduction. Lichen growth depends on habitat type and lichen biomass. The decision variables are the animals chosen for slaughter from each age and sex class and the amount of supplementary food given. Results show that the availability of arboreal lichens, the growth rate of ground lichens, and pasture rotation all determine the optimal solutions. Reindeer management aiming to maximize long-term net economic revenues leads to very low lichen densities if intensive feeding becomes optimal in the long-term steady state. Government subsidies promote reindeer herders to base management on supplementary feeding leading to lower pasture conditions and to the depletion of lichens.
Alkuperäiskielienglanti
LehtiEcological Modelling
Vuosikerta312
Sivut256-271
Sivumäärä16
ISSN0304-3800
DOI - pysyväislinkit
TilaJulkaistu - 2015
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

Tieteenalat

  • 1181 Ekologia, evoluutiobiologia
  • 412 Kotieläintiede, maitotaloustiede
  • 519 Yhteiskuntamaantiede, talousmaantiede

Lainaa tätä

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title = "Reindeer management and winter pastures in the presence of suplementary feeding and government subsidies",
abstract = "We apply an age- and sex-structured reindeer-lichen model to examine the role of winter pastures, pasture rotation, and supplementary feeding on economically optimal reindeer management. The model includes 17 age classes of females, 13 classes of males and a detailed description of winter energy resource utilization by the reindeer population. Reproduction is specified by a modified harmonic mean mating system and the diet choice between different winter energy resources follows the principles of the optimal foraging theory. Wintertime energy intake defines an individual's weight decrease and its consequences on mortality and reproduction. Lichen growth depends on habitat type and lichen biomass. The decision variables are the animals chosen for slaughter from each age and sex class and the amount of supplementary food given. Results show that the availability of arboreal lichens, the growth rate of ground lichens, and pasture rotation all determine the optimal solutions. Reindeer management aiming to maximize long-term net economic revenues leads to very low lichen densities if intensive feeding becomes optimal in the long-term steady state. Government subsidies promote reindeer herders to base management on supplementary feeding leading to lower pasture conditions and to the depletion of lichens.",
keywords = "1181 Ecology, evolutionary biology, 412 Animal science, dairy science, 519 Social and economic geography",
author = "Antti-Juhani Pekkarinen and Jouko Kumpula and Tahvonen, {Olli Ilari}",
year = "2015",
doi = "10.1016/j.ecolmodel.2015.05.030",
language = "English",
volume = "312",
pages = "256--271",
journal = "Ecological Modelling",
issn = "0304-3800",
publisher = "Elsevier Scientific Publ. Co",

}

Reindeer management and winter pastures in the presence of suplementary feeding and government subsidies. / Pekkarinen, Antti-Juhani; Kumpula, Jouko; Tahvonen, Olli Ilari.

julkaisussa: Ecological Modelling, Vuosikerta 312, 2015, s. 256-271.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Reindeer management and winter pastures in the presence of suplementary feeding and government subsidies

AU - Pekkarinen, Antti-Juhani

AU - Kumpula, Jouko

AU - Tahvonen, Olli Ilari

PY - 2015

Y1 - 2015

N2 - We apply an age- and sex-structured reindeer-lichen model to examine the role of winter pastures, pasture rotation, and supplementary feeding on economically optimal reindeer management. The model includes 17 age classes of females, 13 classes of males and a detailed description of winter energy resource utilization by the reindeer population. Reproduction is specified by a modified harmonic mean mating system and the diet choice between different winter energy resources follows the principles of the optimal foraging theory. Wintertime energy intake defines an individual's weight decrease and its consequences on mortality and reproduction. Lichen growth depends on habitat type and lichen biomass. The decision variables are the animals chosen for slaughter from each age and sex class and the amount of supplementary food given. Results show that the availability of arboreal lichens, the growth rate of ground lichens, and pasture rotation all determine the optimal solutions. Reindeer management aiming to maximize long-term net economic revenues leads to very low lichen densities if intensive feeding becomes optimal in the long-term steady state. Government subsidies promote reindeer herders to base management on supplementary feeding leading to lower pasture conditions and to the depletion of lichens.

AB - We apply an age- and sex-structured reindeer-lichen model to examine the role of winter pastures, pasture rotation, and supplementary feeding on economically optimal reindeer management. The model includes 17 age classes of females, 13 classes of males and a detailed description of winter energy resource utilization by the reindeer population. Reproduction is specified by a modified harmonic mean mating system and the diet choice between different winter energy resources follows the principles of the optimal foraging theory. Wintertime energy intake defines an individual's weight decrease and its consequences on mortality and reproduction. Lichen growth depends on habitat type and lichen biomass. The decision variables are the animals chosen for slaughter from each age and sex class and the amount of supplementary food given. Results show that the availability of arboreal lichens, the growth rate of ground lichens, and pasture rotation all determine the optimal solutions. Reindeer management aiming to maximize long-term net economic revenues leads to very low lichen densities if intensive feeding becomes optimal in the long-term steady state. Government subsidies promote reindeer herders to base management on supplementary feeding leading to lower pasture conditions and to the depletion of lichens.

KW - 1181 Ecology, evolutionary biology

KW - 412 Animal science, dairy science

KW - 519 Social and economic geography

U2 - 10.1016/j.ecolmodel.2015.05.030

DO - 10.1016/j.ecolmodel.2015.05.030

M3 - Article

VL - 312

SP - 256

EP - 271

JO - Ecological Modelling

JF - Ecological Modelling

SN - 0304-3800

ER -