We appreciate your visit to On Isle Royale wolves are the main predators of moose The graph shows the changing wolf populations on the island over a 50 year time. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Final answer:
The predator-prey dynamics represented in the graph of Isle Royale wolves and moose do not perfectly match ideal models because real-world ecosystems are complex and driven by factors beyond just predator-prey interactions, including food availability, climate change, and presence of other predators.
Explanation:
The predator-prey dynamic depicted on the Isle Royale with wolves preying on moose may not perfectly mirror idealized models for several reasons. Real-world scenarios involve more than just predator and prey. For example, local vegetation and availability of alternative food sources can affect both populations. Environmental factors, such as climate change, could likewise influence the ecosystem significantly. For instance, as temperatures rise, lichens (food for caribou) may be replaced with shrubs, altering caribou population trends.
Additionally, the presence or absence of other predators, like cougars or other potential predators, can upset the expected dynamics. When cougars decrease in Utah, deer populations soar, altering vegetation and overall biodiversity. In the context of our Isle Royale, a decrease or increase in competing predators could have similar effects.
These multiple complex influences make it hard to depict predator-prey relationships accurately with a simple model. Moreover, these real-world influences can often result in cyclical population dynamics that don't match the smooth curves typically represented in idealized models, as seen in the lynx and hare populations in Northern Ontario.
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Final answer:
The strongest explanation for the trends in the wolf and moose populations on Isle Royale is that ``Predator prey relationships act as density-dependent limiting factors on both predators and prey.``
The answer is option ⇒3
Explanation:
Predator-prey connections serve as density-dependent limiting factors on both predators and prey, which is the most compelling explanation for the changes in the wolf and moose populations on Isle Royale.
1) Predator-prey relationship: Wolves are the primary predators of moose on Isle Royale. As the wolf population increases, they exert more predation pressure on the moose population, leading to a decrease in the moose population.
2) Density-dependent limiting factors: The relationship between predators and prey is density-dependent, meaning it is influenced by the abundance of both populations. As the moose population decreases due to predation by wolves, the availability of prey for the wolves decreases, which can limit the growth of the wolf population.
3) Feedback loop: This predator-prey relationship can create a feedback loop. As the moose population declines, there is less food available for the wolves, leading to a decrease in the wolf population. With fewer wolves preying on them, the moose population can then recover.
The answer is option ⇒3
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Your question is incomplete, but most probably the full question was:
On Isle Royale, wolves are the main predators of moose. The graph shows the changing wolf and moose populations on the island over a 50-year time span. Which statement provides the strongest explanation for the trends in the two populations
- The populations of predators and prey are limited by abiotic factors only
- Predation acts as a density dependent limiting factor on prey but not on predators
- Predator prey relationships act as density-dependent limiting factors on both predators and prey
- Predation acts as a density-independent limiting factor on predators but not on prey
