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Table 1 Conservation threats classification

From: Habitat preferences and conservation threats to Black-necked Cranes wintering in Bhutan

Biological threats

Political threats

Social threats

Natural threats

Loss of habitats (roosting, foraging, feeding, etc.)

Conversion of wetland for other purposes

Hunting

Mortality

Food shortage

Lack of well defined law and policies in species conservation

Trapping

Predators

Competition

Killing

Diseases

Lack of scientific study

 

Disturbances

Environmental factors