Ligature Strangulation. Strangulation is that form of asphyxia which is caused from constriction of the neck by ligature without suspending the body. Pulling a U-shaped ligature against the front and sides of the neck while standing at the back can cause death. It is of two types: [1] Strangulation by a ligature, and [2] manual strangulation or throttling.
What are the enemies of the monarch butterfly? The biggest threat to the monarch butterfly are wasps, bees, frogs, and especially people. Insects like to eat the eggs of monarch butterflies.
In the summer Monarch habitats are found throughout the USA & Canada, including Vermont. Monarchs migrate to Mexico for Winter. In the last 25 years, illegal logging has destroyed 75% of the winter habitat for the monarch butterfly. The monarch butterfly population is down over 90% in both North America & Mexico due to habitat destruction. Thatâs a loss of over 900 million butterflies since the 1990s.