You asked: Why can it be difficult to identify the boundaries of an ecosystem?

Why is it difficult for ecologists to tell when an ecosystem begins and ends?

it is hard to determine where one ecosystem ends and another begins – but not impossible – look for a change in abiotic & biotic components and topographic features. … They are boundaries placed by humans to separate ecosystems while natural boundaries are boundaries put in place naturally by nature.

Which do you think has more of an influence in shaping an ecosystem?

NPP has more of an influence in shaping an ecosystem because it is the remaining amount of energy AFTER producers sued it for respiration. This remaining energy can change how the other organisms interact with each other.

What determines the productivity of an ecosystem?

Net primary productivity varies among ecosystems and depends on many factors. These include solar energy input, temperature and moisture levels, carbon dioxide levels, nutrient availability, and community interactions (e.g., grazing by herbivores) 2.

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Why do scientists often select watersheds as an area to study energy and matter flows in ecosystems?

Why do scientists often select watersheds as an area to study energy and Matter flows in ecosystems? Because it is difficult to study biogeochemical cycles on a global scale, most of this research takes place on a smaller scale where scientists can measure all of the ecosystem processes.

How are ecosystem boundaries determined?

Many real ecological boundaries are defined by a change in several more or less congruent ecological properties: A forest–field edge, for example, could be defined by vegetation height, vegetation species, animal species, wind resistance, or light penetration.

What is meant by ecosystem boundaries are not clearly defined?

Ecosystem Boundaries are Not Clearly Defined. Characteristics depend on climate. Biotic and abiotic components provide boundaries. Some have well-defined boundaries (a cave) Boundaries often subjective.

What do you think are the possible occurrence when living creatures are disturbed?

Major ecological disturbances may include fires, flooding, storms, insect outbreaks and trampling.

Why is productivity important to an ecosystem?

Ecosystems have characteristic amounts of biomass at each trophic level. … The productivity of the primary producers is especially important in any ecosystem because these organisms bring energy to other living organisms by photoautotrophy or chemoautotrophy.

What does primary productivity measure what does it tell you about an ecosystem?

The level of primary productivity in an ecosystem sets the energy budget. In other words, primary productivity determines the maximum amount of energy available to all the higher trophic levels in an ecosystem. … An ecosystem’s primary productivity is the rate at which the producers build biomass.

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How does productivity increase in terrestrial ecosystems?

In general, terrestrial ecosystem net primary production increases with increasing: moisture availability as measured by evapotranspiration. length of growing season. temperature measured as mean annual temperature.