262,789 research outputs found
Pseudicius seychellensis Wanless 1984
No full textPseudicius seychellensis Wanless, 1984 (Figs. 76-78) Pseudicius seychellensis Wanless, 1984 Material examined: Aride, litter sampling, 1m, July-November 2000, John Bowler leg. (MZT AA 2.135) Diagnosis: P. seychellensis is readily distinguished from all other known salticids in Seychelles by the row of trichobothria below the posterior lateral eyes. Description: Male (female well described by Wanless 1984) in general appearance much like female but legs I still heavier built, black. Male palp with spine-like tibial apophysis. Bulbus flattened, disk-like; long, whip-like embolus starting from its apicomesal part, running around it, ending close to tip of cymbium. Distribution: This is an endemic species of which for the present, only two specimens have been collected: Mahé (Wanless 1984) and Aride (*).Published as part of Saaristo, Michael I., 2002, New species and interesting new records of spiders from Seychelles (Arachnida, Araneaea), pp. 1-32 in Phelsuma 10 on pages 26-27, DOI: 10.5281/zenodo.82414
Myrmarachne kitale Wanless 1978
No full textMyrmarachne kitale Wanless, 1978 Fig. 40A–D Myrmarachne kitale Wanless, 1978b: 94, figs 59b, d–e, h–i, 60b, d, h–m. Material examined IVORY COAST • 1 ♂, 1 ♀; Lamto; 2 Oct. 1975; “savane, hautes des herbes”; MNHN. Description See Wanless (1978b). General appearance of male as in Fig. 40A, female Fig. 40B–C, epigyne as in Fig. 40D. Distribution Hitherto known only from Kenya.Published as part of Wesołowska, Wanda & Russell-Smith, Anthony, 2022, Jumping spiders from Ivory Coast collected by J. - C. Ledoux (Araneae, Salticidae), pp. 1-143 in European Journal of Taxonomy 841 (1) on page 66, DOI: 10.5852/ejt.2022.841.1943, http://zenodo.org/record/719535
Yaginumanis Wanless 1984
No full textYaginumanis Wanless, 1984 Yaginumanis Wanless, 1984a: 152 (Type species: Boethus sexdentatus Yaginuma, 1967, by original designation and monotypy). Diagnosis. – This genus is similar to Spartaeus in abdominal pattern, but can be distinguished from the latter in: legs robust and with less ventral spines on tibia I; distal modification of the male palpal tegulum (labelled as "M3"by Wanless, 1984a) with a pleated region, retrolateral apophysis of male palp with a strong lobe. Remarks. – A small genus represented by only two species (Prószynski, 2003), distributed in China and Japan. Judging from the eyes pattern and the shape of eyigynum described by Peng & Li (2002a), Yaginumanis cheni Peng & Li, 2002 from Guangxi, China, might belong to a genus of the subfamily Lyssomaninae.Published as part of Zhang, J. X. & Li, Daiqin, 2005, Four New And One Newly Recorded Species Of The Jumping Spiders (Araneae: Salticidae: Lyssomaninae & Spartaeinae) From (Sub) Tropical China, pp. 221-229 in Raffles Bulletin of Zoology 53 (2) on page 227, DOI: 10.5281/zenodo.461911
Myrmarachne dundoensis Wanless 1978
No full textMyrmarachne dundoensis Wanless, 1978 Figs 31–33 Myrmarachne dundoensis Wanless 1978: 82, figs 51 a–i, 52 a–e. Material examined. Brodericks Falls, 0° 37 ′N 34 ° 46 ′E, 1500 m, in grass, 1 ♂, 7 April 1938. Description. Male. Carapace with small thoracic hump, dark brown, eye field iridescent. Fine whitish hairs covering carapace, forming white bands on its constriction. Four long trichobothria posteriorly from constriction. Sternum and mouthparts brown. Chelicerae as in Fig. 31, relatively short and robust, fang with two apophyses. Abdomen brown with two dorsal scuta. Venter and spinnerets dark. Coxae and legs brown, tibia of the first pair of legs with five pairs of ventral spines, metatarsus with two pairs. Pedipalps brown, densely clothed in dark hairs, copulatory organs as in Figs 32, 33, tibial apophysis relatively long. Dimensions. Cephalothorax: length 2.5, width 1.3, height 0.8. Abdomen: length 2.7, width 1.3. Eye field: length 0.9, anterior width 1.1, posterior width 1.2. Female. See Wanless (1978: 82). Distribution. Species known from Angola and Botswana; in Kenya recorded for the first time.Published as part of Wesołowska, Wanda & Wiśniewski, Konrad, 2015, New data on Belippo and Myrmarachne of Kenya (Araneae: Salticidae: Myrmarachninae), pp. 547-561 in Zootaxa 3980 (4) on pages 555-556, DOI: 10.11646/zootaxa.3980.4.5, http://zenodo.org/record/23563
Figs. 76-78. Pseudicius seychellemis Wanless, 1984. - 76 in New species and interesting new records of spiders from Seychelles (Arachnida, Araneaea)
No full textFigs. 76-78. Pseudicius seychellemis Wanless, 1984. - 76: Male dorsally. - 77: Carapace sinistrolaterally. - 78: Right male palp ventrally. - Scale bars: 76,77 = 1.0, 78 = 0.2 mm. Orig.Published as part of Saaristo, Michael I., 2002, New species and interesting new records of spiders from Seychelles (Arachnida, Araneaea), pp. 1-32 in Phelsuma 10 on page 27, DOI: 10.5281/zenodo.82414
Assessing sea turtle, seabird and shark bycatch in artisanal, semi-industrial and industrial of fisheries in the Cabo Verde Archipelago
No full textFirstly, I am very grateful to Birdlife International for the MSc scholarship. I am also very grateful to Professor Peter Ryan of the FitzPatrick Institute of African Ornithology, University of Cape Town, for agreeing to supervise this project and for his guidance, insights and comments on the write-up. I am grateful to Sarah Saldanha, for all the support during this MSc. Many thanks also to Dr Ross Wanless, Dr Rima Jabado and Ruben Rocha for all support, guidance and advice. I want to thank a lot Andy Angel for their accommodation and all support in South Africa. I am grateful to all the UCT staff and BirdLife Senegal Staff for all the support during this study. Many thanks to my family for all the encouragement and support. I want to thank to all the Cabo Verde fishers for their willingness to share their knowledge and experience. Finally, many thanks to the Conservation Biology class of 2019, for all their support
Bayesian modelling of integrated data and its application to seabird populations
No full textIntegrated data analyses are becoming increasingly popular in studies of wild animal populations where two or more separate sources of data contain information about common parameters. Here we develop an integrated population model using abundance and demographic data from a study of common guillemots (Uria aalge) on the Isle of May, southeast Scotland. A state-space model for the count data is supplemented by three demographic time series (productivity and two mark-recapture-recovery (MRR)), enabling the estimation of prebreeder emigration rate - a parameter for which there is no direct observational data, and which is unidentifiable in the separate analysis of MRR data. A Bayesian approach using MCMC provides a flexible and powerful analysis framework.
This model is extended to provide predictions of future population trajectories. Adopting random effects models for the survival and productivity parameters, we implement the MCMC algorithm to obtain a posterior sample of the underlying process means and variances (and population sizes) within the study period. Given this sample, we predict future demographic parameters, which in turn allows us to predict future population sizes and obtain the corresponding posterior distribution. Under the assumption that recent, unfavourable conditions persist in the future, we obtain a posterior probability of 70% that there is a population decline of >25% over a 10-year period.
Lastly, using MRR data we test for spatial, temporal and age-related correlations in guillemot survival among three widely separated Scottish colonies that have varying overlap in nonbreeding distribution. We show that survival is highly correlated over time for colonies/age classes sharing wintering areas, and essentially uncorrelated for those with separate wintering areas. These results strongly suggest that one or more aspects of winter environment are responsible for spatiotemporal variation in survival of British guillemots, and provide insight into the factors driving multi-population dynamics of the species
Meleon madagascarensis Wanless 1978
No full textMeleon madagascarensis (Wanless, 1978) Figs 40, 41, 42 –47, 53– 56 Portia madagascarensis: Wanless 1978: 114–116, figs 16 A–D. Portia oreophila Wanless, 1978: 116, figs 17 A–D. Meleon madagascarensis (Wanless): Wijesinghe 1994: 57. Description: Male (holotype of Portia madagascarensis). Measurements: Carapace: length 2.45, width 1.90, height at PLE 1.50. Ocular area: length 1.20, width anteriorly 1.65, width posteriorly 1.45. Diameter of AME 0.50. Abdomen: length 2.60, width 1.60. Clypeal height: 0.10. Cheliceral length: 0.95. Length of leg segments: I 2.40 + 0.90 + 2.45 + 2.45; II 2.20 + 0.90 + 1.95 + 2.05 + 0.75; III 1.90 + 0.75 + 1.45 + 1.90 + 0.75; IV 2.40 + 0.90 +2.00+ 3.05 + 0.75. Leg spination: I Fm d 0-1 - 1 - 1 pr and rt 0- 0-1 - 1 - 1, Pt pr and rt 1, Tb d 1 - 0-1 - 1 pr and rt 1 - 0-1 -0 v 2 - 2 - 2 ap, Mt d 0- 0-1 - 1 -0 pr 0-1 - 0-1 - 1 rt 0-1 - 0-1 - 1 v 1 -0- 0-2 apl; II Fm d 0-1 - 1 - 1 pr and rt 0- 0-1 - 1 - 1, Pt pr and rt 1, Tb d 1 - 0-1 - 1, pr and rt 1 - 0-1 -0, v 2 - 2 - 2 ap, Mt d 0- 0-1 - 1 -0, pr 1 - 0-1 - 2 ap, rt 1 - 1-2 ap, v 2 - 0-1 ap; III Fm d 0-1 - 1 - 1, pr and rt 0- 0-1 - 1 - 1; Pt pr and rt 1; Tb d 1 -0- 0-1, pr and rt 1 - 0-1, v 2 - 2 - 2 ap; Mt d 0- 0-1 -0-0, pr and rt 1 - 1-2 ap, v 2 - 0-2 ap; IV Fm d 1 - 1 - 1, pr 0- 0-1 - 0-1 - 1, rt 0- 0-1 - 1 - 1; Pt pr and rt 1; Tb d 1 - 0-1 pr 1 - 0-1 rt 1 - 0-1 - 1 v 2 - 2 - 2 ap, Mt d 2 - 2 -0 pr 0-1 - 2 ap rt 0- 0-2 ap v 1 - 1 - 1 - 0-2 ap. Colouration (Fig. 40): Carapace brown, covered with white hairs, with white ocular area and black around eyes. Clypeus pale yellow, covered with white hairs and bristles. Chelicerae brown-yellow. Sternum yellow. Abdomen yellow, but dorsum with a small dark patch in middle part.All legs yellow, but tibiae and metatarsi I and II brown. Palpal structure as in Figs 42–45. Female (holotype of Portia oreophila). Measurements: Carapace: length 2.40, width 1.90, height at PLE 1.50. Ocular area: length 1.20, width anteriorly 1.65, width posteriorly 1.45. Diameter of AME 0.50. Abdomen: length 2.65, width 1.75. Clypeal height: 0.10. Cheliceral length: 1.00. Length of leg segments: I 2.20 + 0.90 + 1.70 + 1.85 + 0.90; II 1.90 + 0.75 + 1.70 + 1.70 + 0.75; III 2.00+ 0.75 + 1.50 + 1.65 + 0.80; IV 2.25 + 0.75 +2.00+ 2.90 + 0.80. Leg spination: I Fm d 1 - 1 - 1 pr and rt 0- 0-1 - 1 - 1, Pt pr and rt 1, Ti d pr and rt 1 - 1 v 2 - 2 -0, Mt d 0- 0-1 - 1 -0-0, pr 1 - 0-1, rt 1 - 1 - 1 ap, v 2 - 0-2 -0; II Fm d 1 - 1 - 1 pr and rt 0- 0-1 - 1 - 1, Pt pr and rt 1, Tb d 1 - 0-1 - 1 pr and rt 1 - 0-1 -0 v 2 - 2 - 1 ap, Mt d 0- 0-1 - 1 -0 pr and rt 1 - 1 - 1 ap, v 2 - 0-1 - 1 ap; III Fm d 1 - 1 - 1 pr and rt 0- 0-1 - 1 - 1, Pt pr and rt 1, Tb d 1 - 0-1 pr and rt 1 - 1 v 2 - 2 - 2 ap, Mt pr and rt 1 - 1-2 ap, v 0-2 - 0-2 ap; IV Fm d 1 - 1 - 1 pr 0-1 - 0-1 - 1 rt 0-0-0- 0-1, Pt pr and rt 1 Tb d 1 - 0-1 pr and rt 1 - 1 v 2 - 2 - 2 ap, Mt d 2 - 2 -0-0 pr 0- 0-1 - 2 ap rt 0-0- 0-2 ap v 0-2 -0- 0-2 ap. Colouration: As in the male (Fig. 41), but tibiae I ventrally with dense fringes of brown hairs. Epigyne and spermathecae as in Figs 54–56. Type material examined: Portia madagascarensis holotype (♂; MRAC, 142917), MADAGASCAR: Mt Ambohisanga, 15 ° 31 'S: 49 °06'E, i. 1951, A. Pierrard. Portia oreophila holotype (♀; MRAC, 200208) same locality, i. 1961, A. Pierrard. Comments: To date, the species is known from the type specimens and from Madagascar only. It was Wijesinghe (1994) who matched the male of Portia madagascarensis with the female of P. oreophila and thereby provided the current conception of the species. The species is redescribed here on the basis of the type specimens.Published as part of Azarkina, Galina N. & Logunov, Dmitri V., 2010, New data on the jumping spiders of the subfamily Spartaeinae (Araneae: Salticidae) from Africa, pp. 163-182 in African Invertebrates 51 (1) on pages 173-176, DOI: 10.5733/afin.051.010
There are asymptotically the same number of Latin squares of each parity
No full textA Latin square is reduced if its first row and column are in natural order. For Latin squares of a particular order n there are four possible different parities. We confirm a conjecture of Stones and Wanless by showing asymptotic equality between the numbers of reduced Latin squares of each possible parity as the order n → ∞
Distribution and foraging interactions of seabirds and marine mammals in the North Sea: multispecies foraging assemblages and habitat-specific feeding strategies
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