Výsledky vyhledávání - "Geoff S. Oxford"

Molecules v. Morphology—isEratigena atrica(Araneae: Agelenidae) One Species or Three?

Publikováno v: Arachnology. 17:337-357

DNA analyses may reveal groupings of species that are discordant with phylogenies constructed using morphological characters. Here, we examine the taxonomic status of what, historically, was called the Tegenaria atrica group of large house spiders: T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20a4a85f27b8009c6f2cb7e5aa058acf
https://doi.org/10.13156/arac.2017.17.7.337

Zobrazit plný text záznamu

Many a slip: dissecting the causes of reproductive isolation in two species ofTegenariaspiders (Agelenidae)

Autor: Geoff S. Oxford, Peter J. P. Croucher

Publikováno v: Biological Journal of the Linnean Society. 113:355-367

Key to our understanding of the mechanisms underlying the process of speciation is the determination of the nature of the barriers to gene flow between related taxa. Species that show zero gene flow in sympatry or parapatry are of little use in this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e19f67168c64ef31ae1246141957b49
https://doi.org/10.1111/bij.12366

Zobrazit plný text záznamu

Distributions of Species in theTegenaria atricaGroup (Araneae: Agelenidae) in North-East England: Chance, Contingency and Priority

Autor: C. D. Smith, Geoff S. Oxford

Publikováno v: Arachnology. 16:145-153

Summary Tegenaria atrica is a species common in continental Europe and the Republic of Ireland but on the British mainland it has long been regarded as a relatively rare import that has failed to establish. The recent discovery of this species in som

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca1b12cdb29b6c6b54697cb9b59bf0eb
https://doi.org/10.13156/arac.2012.16.5.145

Zobrazit plný text záznamu

Evolutionary Implications of Sperm Competition in the Silver Stretch Spider,Tetragnatha montanaSimon (Araneae: Tetragnathidae)

Autor: Geoff S. Oxford, Paul J. Yoward

Publikováno v: Arachnology. 16:175-182

Summary Few studies have been made on the peri-copulatory behaviour and the outcome of multiple mating in secondarily derived cul-de-sac spiders. Here, molecular markers (allozymes) are used to confirm multiple-paternity in wild-collected females of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::104cbfd67aa727f555d859030886173a
https://doi.org/10.13156/arac.2012.16.5.175

Zobrazit plný text záznamu

Non-additive effects on the morphology of hybrids between two species of large house spiders, Eratigena saeva and E. duellica (Araneae: Agelenidae)

Autor: Geoff S. Oxford

Publikováno v: Arachnology. 18:223

Hybridization and introgression in the wild between two species in the Eratigena atrica group of large house spiders, E. duellica and E. saeva, are well documented. However, the morphology of known F1 hybrids and subsequent F2 and backcross generatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a8da8893215d8efcbad4342236aca33
https://doi.org/10.13156/arac.2019.18.3.223

Zobrazit plný text záznamu

Convergent evolution in the colour polymorphism ofSelkirkiellaspiders (Theridiidae) from the South American temperate rainforest

Autor: Rosemary G. Gillespie, Darko D. Cotoras, David R. Lindberg, Geoff S. Oxford, Peter J. P. Croucher, Michael S. Brewer

Publikováno v: Biological Journal of the Linnean Society.

Convergent evolution tends to lead to similar phenotypic responses to the same selective pressures. However, when the phenotypic response is polymorphic, it is less clear how evolutionary convergence can lead to parallel diversity across species and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98baaf25306eee3d05443ac1fa80489b
https://doi.org/10.1111/bij.12908

Zobrazit plný text záznamu

COLONIZATION HISTORY AND POPULATION GENETICS OF THE COLOR-POLYMORPHIC HAWAIIAN HAPPY-FACE SPIDER THERIDION GRALLATOR (ARANEAE, THERIDIIDAE)

Autor: Geoff S. Oxford, Athena Lam, Peter J. P. Croucher, Rosemary G. Gillespie, Neesha Mody

Publikováno v: Evolution. 66:2815-2833

Past geological and climatological processes shape extant biodiversity. In the Hawaiian Islands, these processes have provided the physical environment for a number of extensive adaptive radiations. Yet, single species that occur throughout the islan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d1a4e4bf2df3cc577a6d76d32237d27
https://doi.org/10.1111/j.1558-5646.2012.01653.x

Zobrazit plný text záznamu

Population structure and dispersal in a patchy landscape: nuclear and mitochondrial markers reveal area effects in the spider Theridion californicum (Araneae: Theridiidae)

Autor: Peter J. P. Croucher, Geoff S. Oxford, Rosemary G. Gillespie

Publikováno v: Biological Journal of the Linnean Society. 104:600-620

Changes in land use have a major effect on patterns of biodiversity. However, few studies have examined the demographic and genetic shifts associated with a return to semi-natural habitat following extended periods of human disturbance. Here we exami

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6dd1ded65e684e2faedeb77760515b8e
https://doi.org/10.1111/j.1095-8312.2011.01734.x

Zobrazit plný text záznamu

The interrelationship between crypsis and colour polymorphism

Autor: Geoff S. Oxford, Daniel W. Franks

Publikováno v: Ecology Letters. 14:295-300

The mechanisms behind the evolution and maintenance of conspicuous visible polymorphisms comprising tens of morphs present a challenge to evolutionary theory. However, for cryptic forms Endler (Evol. Biol., 11, 1978, 319) conjectured that complex bac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb96a0236eec748c5fb091f12cc20997
https://doi.org/10.1111/j.1461-0248.2010.01583.x

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání