A researcher was interested in models and mechanisms of succession in the rocky intertidal where disturbance is frequent. They observed that in newly bare rock space created by disturbance that two species of barnacles arrived first, followed by macroalgae. Limpets are an important herbivore of macroalgae. They were interested in how species interactions would affect succession. They conducted a series of experiments removing barnacles and/or limpets and examined algal abundance to be able to fill in the attached interaction diagram. See attached imageSee second attached image for question In a second experiment, they wanted to test two hypotheses about themechanism of succession: Hypothesis (1) barnacles changed the physicalenvironment of the rocks that directly affected macroalgal settlement or survivalor Hypothesis (2) barnacles indirectly affected interactions of algae with otherspecies. If (1) were supported, removing barnacles would have the same effectregardless of the presence of the other species. If (2) were supported, the effectof removing barnacles would depend on the presence or absence of the otherspecies. They cleared 8cm x 8cm plots of all algae with the following treatments:barnacles and limpets present (+L +B), barnacles present and limpets removed (-L+B), barnacles removed with limpets present (+L-B), and both barnacles andlimpets removed (-L -B). Their results are in the attached figure. Which hypothesiswas supported by the data?A.ALGAL DENSITY(inds./10 cm²)MMODELS AND MECHANISMS VI'MS 'N' J-L+B1-L-B+L+B'MМ' J1985NSS N1984O A. Hypothesis 1: direct effect via physical changesO B. Hypothesis 2: indirect effect via other species interactionsJ'MM1986-L+B+L+B|-L-B**-L+B+L+B-L-B+L-B Barnacleiii.Limpetiv.Algaeii.

The experiment aimed to scrutinize two hypotheses concerning the succession mechanism. Hypothesis 1…

A researcher was interested in models and mechanisms of succession in the rocky intertidal where disturbance is frequent. They observed that in newly bare rock space created by disturbance that two species of barnacles arrived first, followed by macroalgae. Limpets are an important herbivore of macroalgae. They were interested in how species interactions would affect succession. They conducted a series of experiments removing barnacles and/or limpets and examined algal abundance to be able to fill in the attached interaction diagram. See attached image See second attached image for questio

A researcher was interested in models and mechanisms of succession in the rocky intertidal where disturbance is frequent. They observed that in newly bare rock space created by disturbance that two species of barnacles arrived first, followed by macroalgae. Limpets are an important herbivore of macroalgae. They were interested in how species interactions would affect succession. They conducted a series of experiments removing barnacles and/or limpets and examined algal abundance to be able to fill in the attached interaction diagram. See attached image See second attached image for questio

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach

5th Edition

ISBN:9781285244662

Author:White

Publisher:White

Chapter19: Equipment Processing And Surveillance

Section: Chapter Questions

Problem 1SEPT

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