Allopatric speciation (from Ancient Greek ἄλλος (állos) 'other' and πατρίς (patrís) 'fatherland') – also referred to as geographic speciation, vicariant...
94 KB (10,096 words) - 18:03, 4 September 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 (8,154 words) - 20:16, 11 September 2024
peripatric speciation may be considered one type or model of allopatric speciation. The primary distinguishing characteristic of peripatric speciation is that...
52 KB (6,066 words) - 04:53, 17 August 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 (4,139 words) - 14:02, 1 September 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
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
Laboratory experiments of speciation have been conducted for all four modes of speciation: allopatric, peripatric, parapatric, and sympatric; and various...
39 KB (3,802 words) - 20:12, 16 September 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) - 11:50, 11 September 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
by geographic and other means. Mayr emphasized the importance of allopatric speciation, where geographically isolated sub-populations diverge so far that...
74 KB (7,677 words) - 14:40, 17 September 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...
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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
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 (8,156 words) - 09:51, 31 July 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 (24,717 words) - 15:06, 14 September 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 (9,170 words) - 12:29, 12 September 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 (5,067 words) - 12:38, 3 August 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 (5,688 words) - 20:24, 15 September 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) - 15:47, 6 September 2024
allopatric speciation is lacking..."; however, contrary to laboratory studies (focused specifically on models of allopatric speciation), "speciation most definitely...
245 KB (27,673 words) - 03:21, 14 September 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...
45 KB (4,249 words) - 17:15, 12 August 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...
133 KB (13,825 words) - 05:31, 22 September 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
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 (11,696 words) - 16:57, 7 September 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
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
of change to adapt to new conditions. This mechanism is called allopatric speciation. Over time, survivor species of the holly genus adapted to different...
31 KB (3,147 words) - 08:23, 18 August 2024
explained by a recent evolutionary divergence, and is an example of allopatric speciation where the prevention of gene flow by geographical isolation has...
7 KB (678 words) - 15:40, 9 January 2024
these patches of rainforest areas refuges and within these patches allopatric speciation occurred. With the end of the glacial period and increase in atmospheric...
57 KB (6,454 words) - 23:00, 10 September 2024