Explain what a rank abundance curve can tell us about communities?   Explain why a majority of ecosystems are most species rich at moderate productivity levels rather than at very low or very high productivity?   Explain why more diverse habitats (Fig. 17.13) (habitat heterogeneity) leads to higher diversity values of animal species?   How do trophic guilds reduce competition and aid in niche separation?

Q: The figure below shows the relative abundance (y axis) of shrubs in an ecosystem in the years…

A: To Identify: To identify the correct benefited group for a given ecosystem of the shrubs using the…

Q: Studies of two species of blackbirds showed that red-winged blackbirds establish nests mostly on the…

A: Fundamental and realized niches are the environmental positions that species occupy in the…

Q: Read this quote from Charles Darwin (from Origin of Species). What is he describing? "Thus, I can…

A: According to Charles Darwin, organisms bearing favorable trait will survive longer and reproduce…

Q: Although a species might be physiologically able to live under a wide range of resource conditions,…

A: Ecology is the study of interaction of an organism with its environment.

Q: Complete the statements regarding ecological niches by filling in the missing key words and phrases.…

A: The species occupies both in the community thier space and the SPATIAL ROLE.  The space species…

Q: Consider two bird species that forage for insects that live in shrubs. The shrubs have a clumped,…

A: Acording to the MVT model all animals must forage for food in order to meet their energetic needs,…

Q: Feeding levels within ecosystems are also called______. An illustration of these levels with only…

A: Ecology is the study of the associations among living organisms and their physical environment. As…

Q: describe two types of ecological interactions that appear to be occurring between the three…

A: An ecological community is one that includes all populations of diverse species which live together…

Q: Competition between species on the same trophic tier leads to four potential outcomes, 3 are…

A: Population dynamics, such as those influencing population size as well as distribution, are studied…

Q: Discuss competition between species, the competitive exclusion principle, and the phenomenon of…

A:

Q: Design a logical food-web model of the living things in a typical deciduous forest. Producers should…

A: A food web is a model that consists of all the food chains in a single ecosystem.. It is divided…

Q: When r is a positive number, the population size is (a) stable (b) increasing (c) decreasing (d)…

A: The population size in an ecosystem is affected by four important factors: immigration, immigration,…

Q: The following is NOT true about trophic levels Animals capable of feeding at many trophic levels…

A: Trophic level: Tropic level is defined as the position of an organism in the food chain and ranges…

Q: In an ecosystem with four levels producers, primary consumers, and two higher-level consumers…

A: The ecosystem is any geographical region where different living organisms such as plants, animals…

Q: The moray eel and cleaner wrasse story at the beginning of the chapter is an example of which type…

A: The organisms live in close contact with each other and may form relations each other regarding…

Q: Which of the following is/are generally true of ecosystems? More than one option may be correct.…

A: An ecosystem is a biological community of interacting organisms, along with their physical…

Q: Compare and contrast species scale vs. system scale goals for conserving both mutualist biodiversity…

A: The question explores the comparison and contrast between species scale and system scale goals for…

Q: What is the evidence that coevolution of different resource uses allows different finch species to…

A: Co evolution is a phenomena in which an ancestral species may develop simultaneously into different…

Q: The approximate 10% ecological efficiency from one trophic level to the next limits the number of…

A: The "trophic level" is simply a feeding level, as seen in a food chain or food web. The bottom…

Q: Which of the following statements best represents the productivityhypothesis regarding species…

A: Species richness defines the number of species present in the community and it gives the measurement…

Q: What are the major components of biodiversity and what is the importance of biodiversity?

A: Biodiversity is the variability and variety of life on Earth. It is typically a measure of variation…

Q: Which of the following is true of trophic relationships in an ecosystem? All energy in the food…

A: The trophic level can be defined as the levels in an ecosystem that holds some position in the food…

Q: Propose two ways humans can enhance ecological balance? Explain which way would have the greatest…

A: The balance of aquatic species is threatened by sewage waste, as well as pollution from industrial…

Q: EcosystemA hasprimary production of 1000 g C /m2/yr and ecological efficiency of 10%. Ecosystem B…

A: The rate of biomass production per unit area is called productivity. The primary productivity of a…

Q: According to the resource-ratio hypothesis (a.k.a. R-star), what factor(s) will determine the…

A: The R* rule also known as the resource-ratio hypothesis is a community ecology hypothesis that seeks…

Q: A niche is loosely defined as an organism's role in its environment, which can include factors such…

A: The way in which a species interacts with all of the biotic and abiotic elements that can have an…

Q: Which limiting factor would affect the carrying capacity for all species in the pictured ecosystem?…

A: Limiting factor that would affect the carrying capacity for all species in the pictured ecosystem is…

Q: ollowing hypothetical scenario. Be sure to include all four trophic levels in the pyramid, and…

A: Ecological pyramids are drawn in shape of a triangle. These pyramids can either be upright or…

Q: Orque (Orcinus arco) Goéland marin (Larus marinus) Crabe des neiges (Chionoecetes opilio) x Etoile…

A: The food chain is the arrangement of organisms in a linear sequence in which the nutrients and…

Q: The chart shows the average daily population growth rate and the competitive interaction strengths…

A: Lottery model is defined as a model for depicting the way organisms or species compete. Under this…

Q: he competition among individuals of the same species in the same location.   the principle that two…

A: Competitive exclusion principle was given by Gause that is why this principle is also called Gause s…

Q: In 2011, approximately 23% (1138) of mammal species and 12% (1253) of bird species were globally…

A: Biodiversity can be defined as the variety of life that can be found on Earth-like plants, animals,…

Q: The Law of 10 determines all the following characteristics except one. Which one characteristic does…

A: The 10% law states that 90% of the energy that is gathered is wasted as heat in the previous level…

Q: What is the relationship between an increase in fossil fuel consumption and increased carbon in…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Indentify the correct food web for each question. Which type of food web cycles materials and moves…

A: INTRODUCTION Food chain : it explains who eats whome in a wild. This helps to the flow of energy and…

Q: birds, trees, etc.) increases from the poles to the equator. Ecologists do not know exactly why, but…

A: Species richness is the measure of biodiversity.  The more the species richness of a area, the more…

Q: a) Each trophic level, on average, will move 10% of the energy tied up in molecules to the next…

A: NOTE:- As you have posted multiple questions under one, we will solve the first part for you, to get…

Q: The overexploitation of cod in the North Atlantic releases crab and shrimp from predation pressure…

A: When there is a change in one trophic level in a food web, this results in changes in other trophic…