１５６：CCDという不気味な現象

蜂群崩壊症候群と訳される。Colony Collapse Disorderの略語である。深刻な現象でアインシュタインの予言が当たらなければいいが。気候変動より寧ろ危機的かもしれない。生態系の変化は流域管理を考える上で重要だが、水管理者も無視はできない。下記にCCDの概略説明文を示す。

Colony collapse disorder (or CCD) is a phenomenon in which worker bees from a beehive or European honey bee colony abruptly disappear. While such disappearances have occurred throughout the history of apiculture, the term colony collapse disorder was first applied to a drastic rise in the number of disappearances of Western honey bee colonies in North America in late 2006. Aside from fundamental concerns about the survival of bee species, colony collapse is economically significant because many agricultural crops worldwide are pollinated by bees.


Honey bees entering a beehive.European beekeepers observed similar phenomena in Belgium, France, the Netherlands, Greece, Italy, Portugal, and Spain, and initial reports have also come in from Switzerland and Germany, albeit to a lesser degree. Possible cases of CCD have also been reported in Taiwan since April 2007.

The cause or causes of the syndrome are not yet fully understood, although many authorities attribute the problem to biotic factors such as Varroa mites and insect diseases (i.e., pathogens including Nosema apis and Israel acute paralysis virus. Other proposed causes include environmental change-related stresses, malnutrition and pesticides (e.g. neonicotinoids such as imidacloprid), and migratory beekeeping. More speculative possibilities have included both cell phone radiation and genetically modified (GM) crops with pest control characteristics, though experts say no evidence exists for either assertion.[citation needed] It has also been suggested that it may be due to a combination of many factors and that no single factor is the cause.

CCD has been also referred to as honey bee depopulation syndrome (HBDS).

Cをコンサルタントと置き換えるとODAの効果的な実施が危うくなる。若手コンサルタントが業界から逃げていくことは避けたいが、すでに人心の崩壊は何年も前から始まっているかな？！