Sibling species. - one species of frog mates in April, but another mates in May. - two … the ability of two individuals to successfully produce viable, fertile offspring (biological species concept) whether individuals look similar (morphological species concept) how closely related individuals are evolutionarily (phylogenetic species concept), and This is especially useful when it is not practical to do breeding … On the other hand, for evolutionary biologists the term means biological species that can be defined as a reproductive community of populations (reproductively isolated from others) that occupy a specific niche in Nature. Morphology continues to be of importance in taxonomy because morphological features characteristic of a particular species are used to identify it. Organisms may appear to … ADVERTISEMENTS: This concept is useful and meaningful even for those plants where hybridization is common (e.g., Quercus). The morphological species concept treats species as classes of organisms that are similar in terms of their anatomy and other so-called morphological properties. Morphological Species (Taxonomic species) When the individuals are similar to one another in one or more features and different from other such groups, they are called morphological species. Morphologically indistinguishable, but are reproductively isolated. Descriptions of the geography of population location/overlap helps … Biological Species (Isolation Species) Overview of Morphological Species Concept. Morphological/Phenetic/Typological Species Concept A species defined using the morphological species concept is called a morphospecies, and the recognition is based on overall similarity. These species are defined and categorized with no knowledge of phylogenetic history, gene flow or detailed reproductive mechanisms. Species is the basic taxonomical unit of biological classification. The second is the use of DNA sequence analysis to show whether similar-looking species are genetically different from each other. Individuals do not have to be exactly the same as each other, because there is variation in morphology among most species (think how variable people are) and morphospecies take account of this fact. It has not … The first is the population genetics concept. Morphological or classical species concept of readily recognized and morphologically defined species is practical and efficient system for information retrieval in most of the flowering plants. The species concept for most phycologists is based on the morphological characters and hence the term ‘species’ means morphospecies. The biological species concept defines a species as members of populations that actually or potentially interbreed in nature, not according to similarity of appearance. Although appearance is helpful in identifying species, it does not define species. 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