Allopatric speciation (from Ancient Greek ἄλλος (állos) 'other', and πατρίς (patrís) 'fatherland') – also referred to as geographic speciation, vicariant...
94 KB (10,106 words) - 03:04, 30 March 2024
"stepping-stone" (discrete populations), and stasipatric speciation in concordance with most of the parapatric speciation literature.: 111 Henceforth, the models are...
28 KB (3,285 words) - 13:24, 19 March 2024
geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric...
77 KB (8,138 words) - 20:17, 30 April 2024
explains the derivation. Sympatric speciation is one of three traditional geographic modes of speciation. Allopatric speciation is the evolution of species caused...
34 KB (4,140 words) - 08:14, 5 March 2024
Gene flow (section Allopatric speciation)
When gene flow is blocked by physical barriers, this results in Allopatric speciation or a geographical isolation that does not allow populations of the...
40 KB (4,913 words) - 02:20, 20 June 2024
Peripatric speciation is a mode of speciation in which a new species is formed from an isolated peripheral population.: 105 Since peripatric speciation resembles...
51 KB (6,026 words) - 08:40, 24 May 2024
Ecological speciation is a form of speciation arising from reproductive isolation that occurs due to an ecological factor that reduces or eliminates gene...
73 KB (8,155 words) - 23:08, 21 June 2024
pressures. Divergent evolution is the process of speciation. This can happen in several ways: Allopatric speciation is when species are separated by a physical...
31 KB (3,423 words) - 11:01, 24 June 2024
by geographic and other means. Mayr emphasized the importance of allopatric speciation, where geographically isolated sub-populations diverge so far that...
74 KB (7,655 words) - 15:36, 26 June 2024
to many of the speciation concepts put forth. One of which was the concept of peripatric speciation, a variant of allopatric speciation (he has since distinguished...
45 KB (5,398 words) - 05:18, 22 February 2024
Punctuated equilibrium (category Speciation)
and Gould published their 1972 paper, allopatric speciation was considered the "standard" model of speciation. This model was popularized by Ernst Mayr...
52 KB (5,649 words) - 00:53, 27 June 2024
Laboratory experiments of speciation have been conducted for all four modes of speciation: allopatric, peripatric, parapatric, and sympatric; and various...
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whose geographic distributions overlap (sympatric speciation) or are separate (allopatric speciation). Pre-zygotic isolation mechanisms are the most economic...
75 KB (9,072 words) - 07:09, 30 June 2024
rate of sympatric and allopatric speciation in fishes. In D. J. Howard and S. H. Berlocher (eds) Endless Forms: Species and Speciation, Oxford University...
46 KB (5,117 words) - 06:31, 19 February 2024
Evolution (section Speciation)
There are four primary geographic modes of speciation. The most common in animals is allopatric speciation, which occurs in populations initially isolated...
238 KB (24,713 words) - 16:27, 22 June 2024
Introduction to evolution (section Speciation)
ancestral population. A widely accepted method of speciation is called allopatric speciation. Allopatric speciation begins when a population becomes geographically...
80 KB (9,143 words) - 18:33, 18 June 2024
Sympatry (section Sympatric speciation)
varying environments. These may drive allopatric speciation, which is arguably the dominant mode of speciation.[citation needed] The lack of geographic...
17 KB (2,051 words) - 16:41, 12 October 2023
Biology (section Speciation)
divergence. Speciation can occur when there are physical barriers that divide an ancestral species, a process known as allopatric speciation. A phylogeny...
132 KB (13,750 words) - 04:27, 23 June 2024
in evolution and speciation indicate that although allopatric speciation is the norm, there are numerous cases of sympatric speciation in groups with greater...
51 KB (5,678 words) - 14:11, 28 May 2024
a period of tens of millions of years, principally by means of allopatric speciation, and in an arena extending over most of the area of tropical South...
44 KB (5,066 words) - 17:39, 22 June 2024
Natural selection (section Speciation)
problem that was recognised by Darwin. The problem does not occur in allopatric speciation with geographically separated populations, which can diverge with...
108 KB (11,688 words) - 02:53, 28 April 2024
allopatric speciation is lacking..."; however, contrary to laboratory studies (focused specifically on models of allopatric speciation), "speciation most definitely...
245 KB (27,663 words) - 20:29, 1 July 2024
Species (redirect from Species and speciation)
reproductive isolation, a reduced gene flow. This occurs most easily in allopatric speciation, where populations are separated geographically and can diverge...
103 KB (10,508 words) - 03:26, 20 June 2024
members of the order Proboscidea which, through the process of allopatric speciation on islands, evolved much smaller body sizes (around 1–2.3 metres...
43 KB (4,051 words) - 14:16, 20 June 2024
rate of sympatric and allopatric speciation in fishes. In D. J. Howard and S. H. Berlocher (eds) Endless Forms: Species and Speciation, Oxford University...
53 KB (5,844 words) - 23:37, 12 June 2024
secondary contact in an area of sympatry and form hybrids after allopatric speciation has occurred. The rule includes both male heterogametic (XY or XO-type...
12 KB (1,332 words) - 06:41, 16 June 2024
Ring species (section Speciation)
unequivocally demonstrated the process of speciation. A ring species is an alternative model to allopatric speciation, "illustrating how new species can arise...
25 KB (2,642 words) - 18:22, 4 December 2023
of a species can lead to endemism in multiple ways. Allopatric speciation, or geographic speciation, is when two populations of a species become geographically...
35 KB (3,724 words) - 10:25, 4 July 2024
during interglacial periods would have facilitated speciation through both vicariance (allopatric speciation) and geodispersal. Morley and Flenley (1987) and...
36 KB (4,356 words) - 00:04, 24 May 2024
of change to adapt to new conditions. This mechanism is called allopatric speciation. Over time, survivor species of the holly genus adapted to different...
30 KB (3,132 words) - 14:04, 16 May 2024