Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Chapter 52.4, Problem 2CC
WHAT IF? → You suspect that deer are restricting the distribution of a tree species by preferentially eating the seedlings of the tree. How might you test this hypothesis?
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WHAT IF? You suspect that deer are restrictingthe distribution of a tree species by preferentiallyeating the seedlings of the tree. How might you testthis hypothesis?
. According to the video and the background information, what are the effects (direct and indirect) that elephants have on acacias? (Select all that apply.)
Elephants can feed on and destroy individual acacia trees not protected by ants.
Browsing by elephants induces the acacias to provide food and shelter to the ants.
Loss of browsing by elephants eventually leads to the decrease of ant colonization of acacias.
Reduced nutritional and physical support of ants by acacias due to loss of browsing by elephants allows other ant species and stem-boring beetles to inhabit the trees.
video link :
https://www.youtube.com/watch?v=s3blzcbll7Q&t=293s
Thinking Critically
What factors influence the distribution of organisms within a community? How are these distributions described? Why is random distribution so rare?
Chapter 52 Solutions
Bio 121 Campbell Biology Truman College
Ch. 52.1 - Explain how the sun's unequal heating of Earth's...Ch. 52.1 - What are some of the differences in microclimate...Ch. 52.1 - WHAT IF? Changes in Earth's climate at the end of...Ch. 52.1 - MAKE CONNECTIONS Focusing just on the effects of...Ch. 52.2 - Based on the climograph in Figure 52.10, what...Ch. 52.2 - Using Figure 52.12, identify the natural biome in...Ch. 52.2 - WHAT IF? If global warming increases average...Ch. 52.3 - Why are phytoplankton, and not benthic algae or...Ch. 52.3 - Prob. 2CCCh. 52.3 - MAKE CONNECTIONS As noted in Figure 52.15, the...
Ch. 52.4 - Give examples of human actions that could expand a...Ch. 52.4 - WHAT IF? You suspect that deer are restricting...Ch. 52.4 - MAKE CONNECTIONS Hawaiian silverswords under-went...Ch. 52.5 - Describe a scenario showing how ecological change...Ch. 52.5 - MAKE CONNECTIONS Commercial fisheries target...Ch. 52 - Suppose global air circulation suddenly reversed,...Ch. 52 - Prob. 52.2CRCh. 52 - Prob. 52.3CRCh. 52 - Interactions between organisms and the environment...Ch. 52 - Suppose humans introduced a species to a new...Ch. 52 - Level 1: Knowledge/Comprehension 1. Which of the...Ch. 52 - Which lake zone would be absent in a very shallow...Ch. 52 - Which of the following is characteristic of most...Ch. 52 - The oceans affect the biosphere in all of the...Ch. 52 - Which statement about dispersal is false? (A)...Ch. 52 - When climbing a mountain, we can observe...Ch. 52 - Prob. 7TYUCh. 52 - Prob. 8TYUCh. 52 - Prob. 9TYUCh. 52 - EVOLUTION CONNECTION Discuss how the distribution...Ch. 52 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 52 - WRITE ABOUT A THEME: INTERACTIONS Global warming...Ch. 52 - SYNTHESIZE YOUR KNOWLEDGE If you were to hike up...
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- Balancing palm harvest versus the incidental killing of parrots Now let's first evaluate whether harvesting palms at their optimal level can be tolerated by the parrot population, which is incidentally affected when palms felled inadvertently enclose nesting parrots. If the palm populations can be harvested in a sustainable manner at the same rate at which they can potentially grow, then what was the estimated maximum sustainable annual harvest rate for the palms? What was it for the parrots? Based on data originally given in the scenario, recall that the area is 10,000 km2, that 10 km2 hosts 1 parrot (of any age) and 1,000 palms, that felling every thousandth palm kills a nesting pair of parrots, and that carrying capacities for each species are twice their current densities. You now have all the information you need to address the question at hand: 12. If the palm population is harvested at its maximum sustainable limit, will the parrot population be at risk? Please explain how you…arrow_forwardConsider why there might be natural selection for poisonous plants to warn potential herbivores with bright colors, but why there seems to be no similar selective pressure for poisonous mushrooms to do the same. Which of the following best explains this difference? a) Fungi, like mushrooms, do not rely on photosynthesis and hence do not need to attract or warn herbivores with bright colors. Plants have a symbiotic relationship with herbivores, which is not the case for mushrooms. Mushrooms are typically more toxic than plants, so there is no need for them to develop warning colors. Most of a fungus's body is the mycelium which exists underground, hence consumption of the above-ground mushroom cap represents a comparatively smaller fitness cost than for plants, whose vital photosynthetic structures can be consumed by herbivores.arrow_forwardAn example of niche differentiation? *both forage in trees for insects and seeds *when sympatric, chestnut-backed tends to forage in higher branches than black-capped Chestnut-backed Chickadee Black-capped Chickadee ( - Black-capped (----) Chestnut - backed O Mike Hopiak 40 80 00 120 140 HEIGHT (feet) FiG. 1. Comparison of feeding heights of Black-capped and Chestnut-backed chicka If chestnut-backed currently forage in the upper branches and black-backed currently forage in the lower branches because of niche differentiation (i.e. evolutionary change in resource use caused by competition in the past), what would you expect the fundamental and realized niche to be for these two species? The fundamental niche of chestnut-backed is [ Select ] The realized niche of chestnut-backed is [ Select ] The fundamental niche of black-backed is [ Select ] The realized niche of black-backed is [ Select ] NUMBER OF BIRDS (per cent)arrow_forward
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