What is Parapatric in biology?
‘Parapatric’ derives from ‘para’ meaning ‘near’ and ‘patria’ meaning ‘country. ‘ Parapatric speciation thus occurs when a smaller population is isolated, usually at the periphery of a larger group, and becomes differentiated to the point of becoming a new species.
What does the term allopatric mean?
Allopatry, meaning ‘in another place’, describes a population or species that is physically isolated from other similar groups by an extrinsic barrier to dispersal. From a biogeographic perspective, allopatric species or populations are those that do not have overlapping geographic ranges (Figure 1a).
What do you mean by speciation?
Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics. 5 – 12+ Biology, Geography, Physical Geography.
What is peripatric in ecology?
The terms peripatric and peripatry are often used in biogeography, referring to organisms whose ranges are closely adjacent but do not overlap, being separated where these organisms do not occur—for example on an oceanic island compared to the mainland.
What is geographical isolation?
The physical separation of members of a population. populations may be physically separated when their original habitat becomes divided. Example: when new land or water barriers form. See also allopatric speciation.
What does aloe Patrick mean?
/ (ˌæləˈpætrɪk) / adjective. (of biological speciation or species) taking place or existing in areas that are geographically separated from one anotherCompare sympatric.
What is speciation example?
Speciation can be natural and can occur as a normal part of the evolutionary process. Artificial speciation is also possible and can be created by laboratory experiments or through agriculture and animal husbandry. Fruit flies are a primary example of artificial speciation. Another well-known example is domestic sheep.
What is peripatric evolution?
Definition. A speciation in which new species evolve in a sub-population that colonized a new habitat or niche within the same geographical area of the ancestral species, and experience genetic drift.