Survey of spruce seed and cone insects in Switzerland
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https://cmr.earthdata.nasa.gov/search/concepts/C2789817908-ENVIDAT.html
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资源简介：
In 1989 a nation-wide survey on spruce seed and cone insects was carried out at 29 locations distributed across the 5 main geographic regions of Switzerland. The cones were incubated in a controlled environment chamber and the emerging insects were collected and identified. The cones were kept for three years to allow diapausing insects to emerge. The methods are described in more detail in the corresponding publications.
提供机构：
ENVIDAT
创建时间：
2022-04-28
