In the rocky intertidal zone, two barnacle species are found, one low down in the wet zone and the other higher up in the dry zone. Let's call them WET and DRY. Which of the following statements is true? The fundamental and realized niche of DRY are identical. The fundamental niche of WET is smaller than its realized niche. The fundamental niche of DRY includes the wet zone (where it doesn't occur in nature). The fundamental niche of WET includes the dry zone (where it doesn't occur in nature).
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- which of the following statement is false: -The two major compounds in the atmosphere that are responsible for acidic precipitation are sulfuric acid and nitric acid. -Evolution in a parasite from ectoparasitism to endoparasitism would most likely be caused by an increase in the number or intensity of natural enemies of the parasite. -A fundamental niche is often not realized because no one species has exclusive access to all the resources within its fundamental niche. -Competition is often an important driver of early succession, while facilitative interactions tend to play a more dominate role later in succession.A niche is loosely defined as an organism's role in its environment, which can include factors such as feeding preference, nesting behaviors, mating behaviors, method of obtaining prey, and local habitats. Keeping Gause's law in mind, do some research on the California red-legged frog and the North Pacific tree frog (use wiki or another Google search). Create a chart comparing the two with respect to their niche or lifestyle that can explain how these two frogs can co-exist in the same ecosystem.A realized niche describes the conditions of the environment in which a species is actually found, while a fundamental niche describes the potential environmental conditions tolerated by a species. True False
- A niche is loosely defined as an organism's role in its environment, which can include factors like, feeding preference, nesting behaviors, mating behaviors, method of obtaining prey, and local habitats. Considering Gause's law, conduct research on the California Red Legged Frog and the Northern Pacific TreeFrog (use wiki or other google search). Create a chart that compares the two with regard to their niche or their lifestyle that may explain how these two native frogs have evolved to coexist in the same ecosystem. Northern Pacific TreeFrog California Red Legged FrogWhichstatement about organisms’ “niches” is false?a.The niche summarizes environmental factors influencing growth, survival,and reproduction of a species.b.The niche concept was developed by Joseph Grinnell and Charles Elton.c.The “fundamental” niche refers to physical, but notbiological, aspects of the environment.d.Interactions such as competition and parasitism may restrict the size ofan organism’s niche.e.In the laboratory, two species with identical niches are especially easyto maintain in a mixed culture.A species of barnacle may be able to exploit a large volume of habitat but due to competition from other species this barnacle is confined to a smaller area within the larger volume. This area where the barnacle is acutally found is its __________. A) working space B) crevice C) fundamental niche D) realized niche E) potential niche
- A specie’s ________ is the totality of its adaptations, its use of resources, and its lifestyle. (A) habitat, (B) ecotone, (C) ecological niche, (D) competitive exclusion, (E) coevolution.Which of the following statements best represents the productivityhypothesis regarding species richness?a. The larger the area, the greater the number of species that will befound there.b. Temperate regions have a lower species richness due to the lack oftime available for migration after the last Ice Age.c. The number of species in a particular community is directly relatedto the amount of available energy.d. As invertebrate productivity increases, species richness will increase.e. Species richness is not related to primary productivity.A(n) ______ niche is all the conditions that species could survive in, whereas a(n) _____ niche is a species’ actual occupied niche for which it is best adapted.
- What is the principle that teaches us that two species cannot coexist in the exact same niche in the same habitat.This is because species with same niches have comparable requirements, which implies they would fight for the same resources.Environmental scientists David Pimentel, Rodolfo Zuniga, and Doug Morrison of Cornell University reviewed scientific estimates for the economic and ecological costs imposed by introduced and invasive species in the United States. They found that, as of 2005, approximately 50,000 species had been introduced in the United States and that these accountedfor over $120 billion in economic costs each year. These costs include direct losses and damage, as well as costs required to control the species. (The researchers did not quantify monetary estimates for losses of biodiversity, ecosystem services, and aesthetics, which they said would drive total costs several times higher.) Calculate values missing from the table to determine the number of introduced species of each type of organism and the annual cost that each imposes on our economy. Of the 50,000 species introduced into the UnitedStates, half are plants. Describe two ways in whichnon-native plants might be brought to a new location.How…The__________ defines the physical conditions under which a species might live, inthe absence of interaction with other species.a.functional nicheb.realized nichec.principle niched.fundamental nichee.primary niche