TY - JOUR T1 - The distribution of the larger Tegenaria spider species (Agelenidae) in the York area JF - British Arachnological Society Newsletter Y1 - 1985 A1 - Smith, C. J. SP - 5 EP - 6 KW - Distribution records]. KW - Eurasia KW - Europe KW - Land zones KW - Palaearctic region KW - Tegenaria atrica KW - Tegenaria atrica (Araneae). KW - Tegenaria gigantica KW - Tegenaria gigantica (Araneae). KW - Tegenaria saeva (Araneae). KW - Tegenaria saeva [England / / KW - United Kingdom KW - York area SN - 0959-2261 UR - ://ZOOREC:ZOOR12200029967 N1 - ZOOR12200029967No. 42 ER - TY - JOUR T1 - Do large house spiders Tegenaria gigantea and T. saeva (Araneae, Agelenidae) hybridise in the wild? - A multivariate approach JF - Bulletin of the British Arachnological Society Y1 - 1991 A1 - Oxford, G. S. A1 - Plowman, A. SP - 293 EP - 296 KW - [England / / Yorkshire KW - [General morphology / / ] [Hybridization / / Morphological evidence] KW - Biometrics KW - England]. KW - Eurasia KW - Europe KW - evidence KW - General morphology KW - Genetics KW - Land zones KW - Palaearctic KW - region KW - Tegenaria gigantea x T. saeva (Araneae). KW - Tegenaria gigantea x T. saeva [Size / / Evidence for hybridization] KW - Tegenaria saeva x T. gigantea (Araneae). KW - Tegenaria saeva x T. gigantea [Hybridization / / Morphological KW - United Kingdom KW - York]. VL - 8 SN - 0524-4994 UR - ://ZOOREC:ZOOR12800033154 N1 - ZOOR12800033154 ER - TY - JOUR T1 - The distribution of Tegenaria gigantea Chamberlin & Ivie, 1935 and T. saeva Blackwall, 1844 (Araneae, Agelenidae) in Yorkshire JF - Bulletin of the British Arachnological Society Y1 - 1987 A1 - Oxford, G. S. A1 - Smith, C. J. SP - 123 EP - 127 KW - distribution]. KW - Eurasia KW - Europe KW - Land zones KW - Palaearctic region KW - Tegenaria gigantea KW - Tegenaria gigantea (Araneae). KW - Tegenaria saeva (Araneae). KW - Tegenaria saeva [England / / Yorkshire KW - United Kingdom VL - 7 SN - 0524-4994 UR - ://ZOOREC:ZOOR12300055890 N1 - ZOOR12300055890 ER - TY - JOUR T1 - Tegenaria picta Simon, a spider new to Britain (Araneae: Agelenidae) JF - Bulletin of the British Arachnological Society Y1 - 1984 A1 - Jones, R. SP - 178 EP - 180 KW - Eurasia KW - Europe KW - First record for United KW - Houghton KW - Kingdom]. KW - Land zones KW - Palaearctic region KW - Tegenaria picta (Araneae): [New record]. KW - Tegenaria picta [England / / Sussex KW - United Kingdom VL - 6 SN - 0524-4994 UR - ://ZOOREC:ZOOR12100025311 N1 - ZOOR12100025311 ER - TY - JOUR T1 - The microhabitat of Tuberta maerens (Araneae, Agelenidae) JF - Bulletin of the British Arachnological Society Y1 - 1995 A1 - Evans, Karl L. A1 - Hambler, Clive SP - 101 EP - 103 KW - [Forest and woodland / / Coppiced woodland KW - Abiotic factors KW - Animals and man KW - Brasenose Wood]. KW - Commercial activities KW - Conservation KW - Conservation measures KW - distributional relationship] [England / / Oxfordshire KW - distributional relationships KW - Disturbance by man KW - Ecology KW - Eurasia KW - Europe KW - Habitat KW - habitat / / Microhabitat determination KW - Land zones KW - management implications] [Habitat management / / ] [Distribution within KW - management implications] [Temperature / / Coppiced woodland habitat KW - microhabitat analysis & KW - Palaearctic KW - Physical factors KW - region KW - temperature significance] KW - Terrestrial KW - Tuberta maerens (Araneae). KW - Tuberta maerens [Forestry / / Coppicing KW - United Kingdom VL - 10 SN - 0524-4994 UR - ://ZOOREC:ZOOR13200037495 N1 - ZOOR13200037495 ER - TY - JOUR T1 - Tegenaria picta Simon, 1870 (Araneae: Agelenidae) - a spider new to Surrey (VC 17) JF - British Arachnological Society Newsletter Y1 - 2010 A1 - Dodd, Scotty SP - 20 KW - Eurasia KW - Europe KW - Land zones KW - Palaearctic region KW - Tegenaria picta (Araneae): [New record]. KW - Tegenaria picta [England / Surrey / New record]. KW - United Kingdom VL - 117 SN - 0959-2261 UR - ://ZOOREC:ZOOR14609062827 N1 - ZOOR14609062827 ER - TY - JOUR T1 - Contrasting patterns of hybridization in large house spiders (Tegenaria atrica group, Agelenidae) JF - Evolution Y1 - 2007 A1 - Croucher, Peter J. P. A1 - Jones, Ross M. A1 - Searle, Jeremy B. A1 - Oxford, Geoff S. SP - 1622 EP - 1640 KW - & Wales] [Hybridization / / Extent & nature of hybridization] [Gene KW - contrasting patterns of hybridization] [England / / ] [Wales / / ]. KW - England KW - Eurasia KW - Europe KW - flow / Introgressive hybridization / Asymmetric introgression between KW - General morphology KW - Genetics KW - implications for species interactions & hybridization patterns KW - Land KW - Palaearctic region KW - Population genetics KW - species] [Zoogeography / / Distribution & species interactions KW - Tegenaria atrica group (Araneae). KW - Tegenaria atrica group [General morphology / / Multivariation analyses KW - United Kingdom KW - zones KW - Zoogeography AB - The integrity of species is not fixed and may vary geographically. Here we investigate the geographic distributions and interactions of species in the Tegenaria atrica group (Araneae: Agelenidae). Detailed mapping of T. saeva and T. gigantea in England and Wales shows them to be broadly allopatric in southern England with a tightly defined, and possibly long-standing, narrow zone of parapatry in central southern England. In the north of England (Yorkshire), by contrast, the species are broadly sympatric as a result of recent range expansions. GIS techniques are used to map the species distributions and to quantify, we believe for the first time, the intimacy of interspecific interactions. The extent and nature of hybridization in these two areas is examined through regression and multivariate analyses of morphology. We show that the relative incidence of hybridization is much greater in Yorkshire than within the parapatric zone in the south. Clear patterns of asymmetric introgression are observed in both northern and southern England, with a greater impact of T. gigantea on T. saeva than vice versa. We find no sign of morphological reproductive character displacement at the zone of parapatry that might indicate reinforcement, although we cannot exclude more subtle effects, for example via cuticular pheromones. The integrity of these two species seems to be breaking down in northern England, a process that might gain momentum as the gene pools become more similar. VL - 61 SN - 0014-3820 UR - ://ZOOREC:ZOOR14401000464 N1 - ZOOR14401000464 ER - TY - JOUR T1 - The habitat of Tetrilus macrophthalmus (Kulczynski) in Leicestershire and Nottinghamshire (Araneae: Agelenidae) JF - Bulletin Br archnol Soc Y1 - 1973 A1 - Crocker, J. SP - 117 EP - 123 KW - Ecology KW - Eurasia KW - Europe KW - Habitat utilization KW - Land zones KW - Leicestershire] [ / / Nottinghamshire]. KW - Palaearctic region KW - Tetrilus macrophthalmus (Araneae). KW - Tetrilus macrophthalmus [Habitat preference / / ] [England / / KW - United Kingdom VL - 2 UR - ://ZOOREC:ZOOR11000010032 N1 - ZOOR11000010032 ER - TY - JOUR T1 - Supercooling and its ecological implications in Coelotes atropos (Araneae, Agelenidae) JF - Journal of Arachnology Y1 - 1992 A1 - Catley, K. M. SP - 58 EP - 63 KW - [Development / / Ontogenetic changes in supercooling ability] [Habitat KW - & ecological implications]. KW - Biometrics KW - changes] [Wales / / Dyfed KW - Coelotes atropos (Araneae). KW - Coelotes atropos [Age / / Supercooling ability relationship KW - Cold tolerance & supercooling KW - cycle / / Strategy KW - ecological KW - ecological significance] [Life KW - Ecology KW - Eurasia KW - Europe KW - implications of supercooling ability ontogenesis] KW - implications] [Weight / / ] [Temperature relationships / / KW - Land zones KW - Life cycle and development KW - life strategy KW - Palaearctic region KW - Supercooling & low temperature tolerance KW - United Kingdom KW - utilization / / Implications of supercooling ability ontogenetic KW - Whole animal physiology AB - Field observations have shown Coelotes atropos to be winter-active and tolerant of a wide environmental gradient. This study suggest that low temperature tolerance is achieved by a combination of behavioral thermoregulation and physiological adaptation. It was found that the two populations studied, one living at 732 m elevation and the other at sea level, were not significantly different in their ability to supercool. However, a highly significant relationship between body weight and ability to supercool was demonstrated such that immature stages are far more tolerant of low temperatures than adults. Juvenile spiders were not only able to tolerate sub-zero temperatures, but also demonstrated an ability to cold acclimate. They were active in the supercooled state and capable of silk production at -5.degree. C. Mechanisms which may account for the loss of supercooling ability are discussed as well as the implications of such a change for habitat utilization and life cycle strategy. VL - 20 SN - 0161-8202 UR - ://ZOOREC:ZOOR12900016127 N1 - ZOOR12900016127 ER - TY - JOUR T1 - Predicting range overlap in two closely related species of spiders JF - Insect Conservation and Diversity Y1 - 2009 A1 - Anderson, Barbara J. A1 - Bai, Yixuan A1 - Thomas, Chris D. A1 - Oxford, Geoff S. SP - 135 EP - 141 KW - [Climate and weather / Climate change / ] [England / / distribution] KW - [Wales / / ]. KW - Abiotic factors KW - Eurasia KW - Europe KW - Generalised linear models / range overlap of species prediction] KW - Land zones KW - Palaearctic KW - Physical factors KW - region KW - Techniques KW - Tegenaria gigantea KW - Tegenaria gigantea (Araneae). KW - Tegenaria saeva (Araneae). KW - Tegenaria saeva [Mathematical techniques / KW - United Kingdom AB - 1. Predicting when and where species are likely to experience inter-specific interactions as a result of climate change may be as relevant to understanding their evolutionary futures as predicting responses to physical environmental variables. 2. In this paper, models built using data for the distributions of two species of large house spider, Tegenaria saeva and T. gigantea (Agelenidae), from relatively long-established parts of their ranges are used to predict species overlap in a region of more recent range expansion. 3. Generalised linear models (GLMs) are used to identify the key environmental variables associated with the distributions of the spider species in an east[long dash]west band across central Britain. Using this model, the distributions of the two species both north and south of the central band are predicted and tested for how closely they matched observed distributions, and thus whether environmental factors are a sufficient explanation for current distribution patterns in England and Wales. 4. Results demonstrate that predictions of both species distributions and overlap in the south region are almost as good as in the model-building zone, but that predicted distributions in the north are no better than random. Here either climate is of no importance in determining species distributions or, perhaps more likely, the system is still in a state of flux and currently reflects the stochasticity of recent colonisation. 5. Further long-term monitoring of the populations may allow discrimination between alternative hypotheses that could explain the current mismatch between climate and species' distributions VL - 2 SN - 1752-458X UR - ://ZOOREC:ZOOR14511070670 N1 - ZOOR14511070670 ER -