Yukichika Kawata Department of Animal and Food Hygiene Obihiro University of Agriculture and Veterinary Medicine Inada-cho, Obihiro, Hokkaido, Japan E-Leader.

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Presentation transcript:

Yukichika Kawata Department of Animal and Food Hygiene Obihiro University of Agriculture and Veterinary Medicine Inada-cho, Obihiro, Hokkaido, Japan E-Leader Conference Manila, Philippines Jan. 2-4, 2012

The purpose of this presentation is to introduce the current situation of hunting animals and to invoke wider attention and discussions associated with it in Japan. Oct. 10th, 2009 at Deer farm, Nishiokoppe town, Hokkaido

1. Current status  Increase in population of ungulates  Serious damage caused by increased population of ungulates 2. A new method to protect damage  I introduce one efficient method for damage protection 3. Brief discussions  I recommend to create a new habitat and rely on the ecosystem for its control to a certain extent.

Increase in population of ungulates  Because of the absence of large carnivores (or predators) (1.1) for controlling ungulate population and a reduced hunting pressure by human hunters (1.2), the population of ungulates seem to have increased. Damage caused by ungulates (1.3)  Vegetation damage  Agriculture damage  Forestry damage  Traffic accidents

Yezo wolf (Canis lupus hattai Kishida, 1931)Extinct Japanese Wolf (C. l. hodophilax Temminck, 1839)Extinct Wild dogs (Canis lupus familiaris)Not influential Brown bear (Ursus arctos Linnaeus, 1758)Not influential

[please see] The number of hunters (average of 5 years)

[please see] Kawata, Y Economic growth and trend changes in wildlife hunting. Acta agriculturae Slovenica 97(2), p. 122, Fig. 2. JAPAN pcGDP (2009) Hunter rate 0.17% (2008)

Per capita GDP Hunters’ proportion of the population existence of sport hunting substitutes (e.g. domestic animal products) knowledge regarding the quality of game meats existence of traditional foods JAPAN NO YES

Age distribution of hunters [please see]

Vegetation damage  Shiretoko peninsular (Hokkaido, World heritage)  Kiritappu wetland (Hokkaido, registered wetland under the Ramsar Convention)  Ohdaigahara (Nara, National park, UNESCO Man and the Biosphere Reserve) Agriculture / Forestry damages Traffic accidents

May 4th, 2009 by Kawata at Shiretoko Shiretoko

May 4th, 2009 by Kawata at Shiretoko

Sept. 19, 2002 by Kawata

Agricultural / forestry damage by the sika deer in Hokkaido [please see]

[please see] Kawata, Y An analysis of natural factors of traffic accidents involving Yezo deer (Cervus nippon yesoensis). Bulgarian Journal of Veterinary Medicine 14(1), p. 5, Fig. 2.

Comparison of traditional methods and ours TRADITIONAL METHODSOUR METHOD  Time consumingLess time consuming  CostlyCheaper  Need special skillsNeed no special skills  Non-biodegradable (not always)Biodegradable (within few years)  Need maintenanceNeed maintenance

Oct. 16th, 2009 at Kyoto

Oct. 11th, 2009 at Akan National Park, Hokkaido

ForestsCultivated lands Forests Cultivated lands STOP

Cows are here Oct. 16th, 2009 at Kyoto

The sika deer select foods for eating when the benefit (calorie obtained) of foods is far larger than the cost (calories consumed) of consuming them. benefit cost benefit cost

Sept. 17th, 2011 at Kyoto

Oct. 16th, 2009 at Kyoto

Japanese citizens are now faced with the following options. 1. For humans to control the wild animal populations in some way (option 1). NOT SUCCESSFUL 2. To return to the past conditions (option 2). NOT REALISTIC 1. To transit to new conditions (option 3). MOST REALISTIC 1. To do nothing (option 4). OUT OF QUESTION

Measures for preventing wildlife damage include three main components: damage control, population control, and habitat control. damage control population control habitat control OPTION 1 OPTION 2 OUR METHOD (e.g. hunting) (e.g. reintroduction of wolves)  It can be pointed out that human hunters are the last hunters of ungulates in Japan and they are now an endangered species.  It should be that people hunt because there is a high demand for venison. However, in reality, they try to create demand because they hunt. Back to past conditions Maintain current conditions

One of the most realistic proposals is to divide mountainous regions into two groups. Some regions should be maintained or reinvigorated... But others can be left to remain in their natural state.

 First, we can concentrate on certain specific regions, which will help to save on maintenance costs and increases the possibility of successful maintenance of selected mountainous regions.  Second, earlier, some ungulates such as sika deer used to range in the plain areas. By abandoning some regions, we can recreate their original habitat.  Third, if we create a new habitat and rely on the ecosystem for its control to a certain extent, monkey issue (carcasses of monkey are currently of no use) will be less problematic.

 The first is how to create and/or maintain buffer zones.  The second is how to monitor wildlife.  The third is how to maintain a small number of hunters. This is because there will be cases where we ask hunters to shoot wild animals with guns or tranquilizer guns.