Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies
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 res...
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ftrepec:oai:RePEc:eee:ecomod:v:312:y:2015:i:c:p:256-271 2024-04-14T08:18:45+00:00 Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies Pekkarinen, Antti-Juhani Kumpula, Jouko Tahvonen, Olli http://www.sciencedirect.com/science/article/pii/S0304380015002367 unknown http://www.sciencedirect.com/science/article/pii/S0304380015002367 article ftrepec 2024-03-19T10:34:06Z 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. Herbivore–plant interactions; Reindeer husbandry; Structured model; Optimal harvesting; Overgrazing; Supplementary feeding; Article in Journal/Newspaper reindeer husbandry Reindeer lichen RePEc (Research Papers in Economics) Slaughter ENVELOPE(-85.633,-85.633,-78.617,-78.617) |
institution |
Open Polar |
collection |
RePEc (Research Papers in Economics) |
op_collection_id |
ftrepec |
language |
unknown |
description |
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. Herbivore–plant interactions; Reindeer husbandry; Structured model; Optimal harvesting; Overgrazing; Supplementary feeding; |
format |
Article in Journal/Newspaper |
author |
Pekkarinen, Antti-Juhani Kumpula, Jouko Tahvonen, Olli |
spellingShingle |
Pekkarinen, Antti-Juhani Kumpula, Jouko Tahvonen, Olli Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
author_facet |
Pekkarinen, Antti-Juhani Kumpula, Jouko Tahvonen, Olli |
author_sort |
Pekkarinen, Antti-Juhani |
title |
Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
title_short |
Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
title_full |
Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
title_fullStr |
Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
title_full_unstemmed |
Reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
title_sort |
reindeer management and winter pastures in the presence of supplementary feeding and government subsidies |
url |
http://www.sciencedirect.com/science/article/pii/S0304380015002367 |
long_lat |
ENVELOPE(-85.633,-85.633,-78.617,-78.617) |
geographic |
Slaughter |
geographic_facet |
Slaughter |
genre |
reindeer husbandry Reindeer lichen |
genre_facet |
reindeer husbandry Reindeer lichen |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0304380015002367 |
_version_ |
1796318294675816448 |