• Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. (wikipedia.org)
  • Because parasitic organisms often inhabit multiple hosts during a life cycle, evolutionary biologist Ernst Mayr stated that internal parasites existing within different hosts demonstrate allopatry, not sympatry. (wikipedia.org)
  • We asked how closely related dark-eyed junco ( Junco hyemalis ) populations that overwinter in sympatry but breed in allopatry respond to their shared winter environment by comparing early spring indices of readiness to migrate and breed (baseline and elevated testosterone). (datadryad.org)
  • We looked at summer microhabitat use within sites of sympatry and allopatry to test for evidence of reinforcement due to diverging habitat use. (biorxiv.org)
  • pluricephala occur in the broad zone of sympatry. (uwaterloo.ca)
  • Others question the ability of sympatry to result in complete speciation: until recently, many researchers considered it nonexistent, doubting that selection alone could create disparate, but not geographically separated, species. (wikipedia.org)
  • Just as the broader term sympatry, "syntopy" is used especially for close species that might hybridise or even be sister species. (wikipedia.org)
  • It is generally recognized that more than one species is involved since some cases of sympatry between different forms has been reported. (amphibiaweb.org)
  • The third and rarer species, although found in extreme sympatry with another species, appears to be reproductively isolated, and also differs in external morphology and dentition. (edu.au)
  • My sub-adults share a 90cm/36' tank with some Tilapia (Coptodon) discolor (a species found in sympatry in Lake Bosumtwi). (practicalfishkeeping.co.uk)
  • Our study suggests that some geographical separation may kick-start the evolution of strong RI, facilitating subsequent coexistence of taxa in sympatry. (whiterose.ac.uk)
  • By coupling sequencing and pairwise competition experiments, we demonstrated that the first mutation λ evolved en route to the innovation would only evolve in the presence of the ancestral host, whereas later steps in λ's evolution required the shift to a resistant host. (elifesciences.org)
  • But what is the history behind strong barriers currently acting in sympatry? (whiterose.ac.uk)
  • Z. schlegelii can be found in sympatry with Z. arboreus . (amphibiaweb.org)
  • In eastern Panama and Colombia C. fitzingeri and C. raniformis are found in sympatry and both have yellow dots on the posterior thighs. (amphibiaweb.org)
  • Research will be conducted into genetics of invasion and experiments will be done to look at adaptation between old versus new hosts and the transcriptional response along a range of ancient to recent sympatry. (awi.de)
  • Explosive Pleistocene range expansion leads to widespread Amazonian sympatry between robust and gracile capuchin monkeys. (wikimedia.org)
  • Look up sympatry in Wiktionary, the free dictionary. (wikipedia.org)
  • Hoelzel AR (1998) Genetic structure of cetacean populations in sympatry, parapatry, and mixed assemblages: implications for conservation policy. (springer.com)
  • funestus Giles, which occurs in sympatry with An. (nih.gov)
  • However, the frequency of sympatric divergence in these organisms will depend on the definition of sympatry that one uses. (nih.gov)
  • Nous pr sentons des exemples d'efforts multiorganisationnels qui font progresser la conservation et la gestion des populations d'oiseaux en r gion bor ale, de m me que les changements relatifs aux politiques gouvernementales qui influent la mesure dans laquelle la l gislation prot geant les oiseaux peut tre utilis e. (ace-eco.org)
  • The results suggest different genetic lineages in sympatry in nature. (geneticsmr.com)
  • En raison de la nature largement inexplorée de la diversité des parasites métazoaires, leurs mécanismes de spéciation et les circonstances dans lesquelles cette spéciation se produit-allopatrie ou sympatrie-restent très peu étudiés. (parasite-journal.org)
  • L'Alaska est l'h te de 11 % de la for t bor ale d'Am rique du Nord, r seau le plus largi de terres prot g es sur le continent, et de plusieurs esp ces d'oiseaux bor aux en diminution, en faisant une composante essentielle de la conservation et de la gestion des oiseaux bor aux. (ace-eco.org)
  • Transcriptomic analyses in the offspring of Arctic charr morphs ( Salvelinus alpinus ) and their hybrids at two stages of cranial development suggest that gene expression variance can rapidly diverge in sympatry and is conditioned by dominance patterns. (nature.com)
  • A second area of possible sympatry is in southern Washington. (nearctica.com)