| 来源类型 | Article
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| 规范类型 | 其他
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| DOI | 10.1016/j.ecolecon.2015.04.015
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| A spatial bioeconomic model of the harvest of wild plants and animals. |
| Siren A; Parvinen K
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| 发表日期 | 2015
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| 出处 | Ecological Economics 116: 201-210
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| 出版年 | 2015
|
| 语种 | 英语
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| 摘要 | The intensity of harvest of wild plants and animals often varies with the distance from human settlemets, processing facilities, markets, and transportation routes such as roads and rivers, resulting in marked spatial gradients in the abundance of such resouces. Spatial modeling of the harvest of wild species has therefore emerged as an important research approach. The literature on such modeling is, however, fragmented beween different resource types, and empirical validation of the models is often weak or absent. This paper presents a model that is intended to have validity for a wide variety of wild plant and animal resources. It combines a logistic model of resource growth with an economic model assuming that costs associated wih harvest consist of three components, namely transport, search, and handling, and a one-dimensional spatial structure where resource harvesters are based at "central place" surrounded by infinite extensions of habitat for the harvested resource. Model outcomes show that the spatial distribution of harvest heavily depends on the carrying capacity and the catchability coefficient, i.e. the ease of finding and harvesting a resource unit. An empirical study of wildlife hunting and palm leaf harvest in indigenous villages in Ecuadorian Amazonia confirmed the validity of model outcomes. |
| 主题 | Evolution and Ecology (EEP)
|
| 关键词 | Spatial model
bioeconomic model
hunting
bushmeat
wildlife
palm leaves
thatch
Pholidostachys synanthera
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| URL | http://pure.iiasa.ac.at/id/eprint/11453/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 引用统计 |
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130361
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推荐引用方式
GB/T 7714 |
Siren A,Parvinen K. A spatial bioeconomic model of the harvest of wild plants and animals.. 2015.
|
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