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Why did the deer population go down in 2009?

Low recruitment, severe winters, dry summers, changing predator/prey relationships, and increased habitat loss have pushed mule deer populations lower than the department and public desire.

What happened to the deer population between 1971 and 1980?

2. Describe what happened to the decr and wolf populations between 1971 and 1980. In 1971 the deer population had already reached the carrying capacity of the island. With little to no predation and a high birth rate, the population continued to rise rapidly Over the next two years.

Why did the population of deer decline in 1925?

3. Why do you suppose the population of deer declined in 1925, although the eliminated of predators occurred? The deer were hunted, but most of the population died because the environment could not sustain the population.

What caused the decrease in the deer population between 1973 and 1974?

I believe that the decrease in deer population in 1973 and 1974 was due to the increase in wolf population. In 1973 is the highest that the deer population got to. 1973 is the start of the deer population decreasing due to the wolves.

Would the deer on the island be better off worse off or about the same without the wolves?

Defend your position. I think that the deer would be worse off without the wolves, if there were no wolves on the island, the deer population would rise unchecked, creating more starvation, diseases and crowding, the wolves keep the deer at a stable population, still allowing for gain some years.

What do you think would have happened to the deer on the island have wolves not been introduced Why?

Had the wolves not been introduced to the island, there is a good change that the deer population would have ultimately died out because there would not have been enough food to support all of the deer present on the island.

Do wolves eat deer?

The wolf is a carnivore. The availability of prey has a major impact on its diet. Its prey animals range from moles, lemmings, hares and birds to deer, reindeer and moose. While the wolf’s favourite prey are ungulates, usually moose in the boreal zone, it is also happy enough to eat carrion and even small mammals.

Do Predators really kill only the old and sick prey quizlet?

Predators don’t necessarily prey only on the ill/ injured. Sick prey may be overlooked because their bodies may not provide the necessary sustence for the predator and others it may be feeding. Healthy large slow moving animals may be difficult to kill but the payoff is greater, especially if a pack is involved.

Is the number of deer on the island a density dependent?

Answer: It is density dependent.

Which type of organism would be most likely to have a type II survivorship curve?

Type II. Many bird species have a Type II survivorship curve. In a Type II curve, organisms die more or less equally at each age interval. Organisms with this type of survivorship curve may also have relatively few offspring and provide significant parental care.

What factors affect population growth?

Population growth rate is affected by birth rates, death rates, immigration, and emigration. If a population is given unlimited amounts of food, moisture, and oxygen, and other environmental factors, it will show exponential growth.

What are the main cause of population?

Poverty is believed to be the leading cause of overpopulation. A lack of educational resources, coupled with high death rates leading to higher birth rates, result in impoverished areas seeing large booms in population.