Analyze the demographic aspects of ungulates to arrive at some new proposals for management of ruminant populations in the territory of the District. This is the aim of the study prepared by Vco3 hunting district, illustrated the other evening to the heads of the organization that manages hunting in the lower Ossola, in the Anzasca, Bognanco, Antrona and Divedro valleys. A study illustrated by Professor Alberto Meriggi of the University of Pavia, who compiled it with the collaboration of Fabrizio Cappa, Gianluca Costanzo Zammataro, Filippo Foti and Domenico La Russa and which analyzes the populations of ungulates starting from the last check made by Ispra.
The study analyzes the climatic conditions, the territory with its geomorphological complexity, the fact that the Vco is covered for the 57 percent woodland, but also as in recent years the territory used for agricultural uses. A study that points out that roe deer have decreased considerably - as has happened throughout the Alps - has decreased considerably with disappearance of many farms: they were 10080 in 1970, to 1345 in 2010, with a decrease of a third of the utilized agricultural area. An evolution of the agro-forestry-pastoral landscape that has also influenced the presence of ungulates. With a decrease of almost half in the number of animals reared: there were 43975 in 1982, which fell to 22.752 in 2010.
In the more than 100 pages of the study, the collection of ungulate is also thoroughly analyzed, which has changed over the years with a '' strategic variation of hunting management of ungulates adopted by the district ''. The study will be presented to the members of the district but will also be collected in an educational volume. From 2000 to 2019 the number of killed chamois '' increased from 240 to 356, the number of roe deer had increased until 2015 and then decreased until it returned to the values at the beginning of the period ''. For the deer ''constant increase in the number of culled animals: from 28 in 2000 to 504 in 2019.
The analysis also concerned the implementation of the abatement plans: which for the chamois reached the maximum in 2000 to go down to remain confined between 90 and 95 percent in recent years. Ditto for the roe deer that today sees the abatement plans made between 60 and 80 per cent while for deer lately it has varied between 70 and 88 per cent. Analyzes that also concerned the sex and age of the leaders. In the conclusions we speak of '' a constant levy in 20 years for the chamois, a substantial stability for the roe deer and a trend of the culling of deer, in constant and strong growth ''. Also influenced by the weather conditions of the various years analyzed: continuous rainfall or snow on the ground or low temperatures. All this, we said, to arrive at the management proposals of the sampling plans, also through different census methods with the use of new technologies but also old and tested visual monitoring systems.