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REASSIGNED RHODODENDRON SPECIES. "Together, the two species investigated here have nine described infraspecific taxa: five for R. delavayi, and four for R. irroratum, however, these are all assigned the rank of subspecies." https://lnkd.in/dK-A3iM View in LinkedIn

MISNAMED PLANT SPECIES. "Despite ongoing debate about the overall evolutionary importance of hybridization, the process has been shown to be widespread and relatively common in plants, occurring across many different families and floras. Indeed, Rieseberg (1997) suggested that a worldwide average of 11 % of all described plant species may be hybrids, and that this figure may even be an underestimate." https://lnkd.in/dK-A3iM View in LinkedIn

CONSERVATIVE TAXA ASSIGNMENT. "Hybrids growing in sympatry with their parents cannot necessarily be assumed to have a distinct genepool, and even if certain hybrids show higher fitness than the parents, it needs to be demonstrated that they have the potential to evolve into a coherent group under natural conditions. Before evidence has been collected in this regard, hybrids should rather be recorded as such rather than described as a taxon." https://lnkd.in/dK-A3iM View in LinkedIn

DISTINCT SPECIES PROPERTIES. "Such properties can, for example, include a distinct genepool or adaptation to a different habitat. Furthermore, the group should already share a common evolutionary history or have the potential to diverge." https://lnkd.in/dK-A3iM View in LinkedIn

BELL CURVE IN SPECIATION. "Darwin already noted that there is an evolutionary continuum between varieties and species. This implies that taxa described as varieties (or subspecies) should be groups of individuals that possess evolutionary relevant properties distinguishing them consistently from other members of the species." https://lnkd.in/dK-A3iM View in LinkedIn

INTERMEDIATE VERSUS PARENTAL. "While intermediacy is often the expected state in hybrids, it has been shown when averaging over several studies that only about half of the characters in hybrids for interspecific crosses were intermediate, with other characters approaching the morphology of one of the parents." https://lnkd.in/dK-A3iM View in LinkedIn

DIOECY. “Dioecious plants, however fertilised, have a great advantage over other plants in their cross-fertilisation being assured. But this advantage is gained ... with some risk ... of their fertilisation occasionally failing. Half the individuals, moreover, namely, the males, produce no seed, and this might possibly be a disadvantage... dioecious plants cannot spread so easily as monoecious and hermaphrodite species, for a single individual, which happened to reach some new site, could not propagate its kind.” https://lnkd.in/dUmPa47 View in LinkedIn

RISKS OF DIOECY. “Separating sexual function between different individuals carries risks, especially for sedentary organisms. Nevertheless, many land plants have unisexual gametophytes or sporophytes.” https://lnkd.in/dUmPa47 View in LinkedIn

DIOECY IN ANIMALS. “Dioecy may also describe colonies, such as the colonies of Siphonophorae (Portuguese man-of-war), which may be either dioecious within a species or monoecious. Dioecious colonies contain members of only one sex, whereas monoecious colonies contain members of both sexes. Most animal species are dioecious (gonochoric).” https://lnkd.in/dKd4E5r View in LinkedIn

DIOECY DEFINED. “Dioecy (Greek: διοικία "two households"; adjective form: dioecious) is a characteristic of a species, meaning that it has distinct male and female individual organisms. Dioecious reproduction is biparental reproduction. Dioecy is one method that excludes self-fertilization and promotes allogamy (outcrossing), and thus tends to reduce the expression of recessive deleterious mutations present in a population. Flowering plants have several other methods of excluding self-fertilization, called Self-incompatibility.” https://lnkd.in/dKd4E5r View in LinkedIn