摘要：The correct application of the null models in ecological studies is important since through of them we are able to know if random determines or influences the observed patterns, time and/or space. A proposal to make the construction of the models more rapid and reliable is also undertaken. A case study (predation between a fish and its preys) is analyzed. By applying the null model it is found that random does not influence or determine the observed pattern and that this probably responds to any ecological mechanism.
其他摘要：The correct application of the null models in ecological studies is important since through of them we are able to know if random determines or influences the observed patterns, time and/or space. A proposal to make the construction of the models more rapid and reliable is also undertaken. A case study (predation between a fish and its preys) is analyzed. By applying the null model it is found that random does not influence or determine the observed pattern and that this probably responds to any ecological mechanism.
关键词：Electromagnetic waves; Charged particles; Newtons second law; Relative mechanics; Wave dispersion Ondas electromagnéticas; Partículas cargadas; Segunda Ley ...
