In the ecological study of food interactions how are the autotrophic beings called?

306

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Can the amount of available energy in a given tropic level to be larger than the available energy in inferior tropic levels? What does that condition means to the conformation of the energy pyramids?

374

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What are pioneer species? What is the role of the pioneer species?

393

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Why does thermal inversion increases air pollution? Which harms can thermal inversion cause to humans?

450

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What benefits can commensalism offer to a species?

301

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What are some economic applications that can be generated by very biodiverse ecosystems?

351

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What is ammensalim?

307

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What is the respective importance of water, carbon, and nitrogen for the living beings?

536

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What is the gross primary production of an ecosystem? How does GPP relate to photosynthesis?

280

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What are the main causes of the loss of the biological diversity nowadays?

410

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What do numeric pyramids represent?

389

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In a numeric pyramid, is it possible the base to be smaller than the other levels?

550

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How different are the concepts of migration, emigration, and immigration

377

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Is pollution always caused by humans?

341

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What is the group of aquatic beings composed of large number of photosynthetic beings?

338

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