1,721,081 research outputs found
Some heteronemerteans (Nemertea) from the Solomon Islands
No full textGibson, Ray, Sundberg, Per (2002): Some heteronemerteans (Nemertea) from the Solomon Islands. Journal of Natural History 36 (15): 1785-1804, DOI: 10.1080/00222930110069041, URL: http://www.tandfonline.com/doi/abs/10.1080/0022293011006904
FIG. 4 in Some heteronemerteans (Nemertea) from the Solomon Islands
No full textFIG. 4. Kukumia solomonensis gen. et sp. nov. Drawing of complete specimen, taken from a photograph of the living individual. Scale bar 5 10 mm.Published as part of Gibson, Ray & Sundberg, Per, 2002, Some heteronemerteans (Nemertea) from the Solomon Islands, pp. 1785-1804 in Journal of Natural History 36 (15) on page 1792, DOI: 10.1080/00222930110069041, http://zenodo.org/record/529884
Genus Baseodiscus (Nemertea: Heteronemertea): Molecular identification of a new species in a phylogenetic context
No full textStrand, Malin, Hjelmgren, Anna, Sundberg, Per (2005): Genus Baseodiscus (Nemertea: Heteronemertea): Molecular identification of a new species in a phylogenetic context. Journal of Natural History 39 (44): 3785-3793, DOI: 10.1080/00222930500370952, URL: http://dx.doi.org/10.1080/0022293050037095
Figure 2. Majority rule consensus tree for the 16S in Genus Baseodiscus (Nemertea: Heteronemertea): Molecular identification of a new species in a phylogenetic context
No full textFigure 2. Majority rule consensus tree for the 16S rRNA data resulting from the Bayesian analysis (model GTR+G+I), 1,000,000 generations. Numbers refer to posterior probabilities.Published as part of Strand, Malin, Hjelmgren, Anna & Sundberg, Per, 2005, Genus Baseodiscus (Nemertea: Heteronemertea): Molecular identification of a new species in a phylogenetic context, pp. 3785-3793 in Journal of Natural History 39 (44) on page 3790, DOI: 10.1080/00222930500370952, http://zenodo.org/record/522095
Figure 2 in Species delimitation based on multiple criteria: the Spotted Bush Warbler Bradypterus thoracicus complex (Aves: Megaluridae)
No full textFigure 2. Principal components analysis of morphometric data for the members of the Bradypterus thoracicus complex. See Table 4 for summary statistics.Published as part of Alström, Per, Rasmussen, Pamela C., Olsson, Urban & Sundberg, Per, 2008, Species delimitation based on multiple criteria: the Spotted Bush Warbler Bradypterus thoracicus complex (Aves: Megaluridae), pp. 291-307 in Zoological Journal of the Linnean Society 154 (2) on page 296, DOI: 10.1111/j.1096-3642.2008.00418.x, http://zenodo.org/record/544679
FIGS 5 in Some heteronemerteans (Nemertea) from the Solomon Islands
No full textFIGS 5±10. Kukumia solomonensis gen. et sp. nov. (5) Transverse section through part of the dorsal body wall in the foregut region, showing the appearance of the epidermis, subepidermal musculature, dermis and outer body wall longitudinal muscle layer. (6) Transverse section through part of the dorsal body wall in the posterior region of the body; note the diVerence in the appearance of the dermis in comparison with Žgure 5. (7) Enlargement of part of the anterior dermis, in transverse section, to show the concentric arrangement of the dermal connective tissues interwoven with peripheral bundles of body wall outer longitudinal muscle Žbres. (8) Part of the outer longitudinal body wall muscle layer in transverse section, showing some of the radial muscle and connective tissue Žbrils which traverse the body wall. (9) Transverse section through the dorsal body wall in the foregut region to show the upper and lower mid-dorsal nerves. (10) Transverse section through a lateral nerve cord to show the inner and outer neurilemma, radial connective tissue and muscle Žbrils penetrating the outer ganglionic zone and the bundles of longitudinal myoŽbrillae (indicated by arrows). All photomicrographs of the holotype, sections stained with the Mallory trichrome method. Scale bars: (5, 6, 8, 10) 5100 mm; (7, 9) 550 mm.Published as part of Gibson, Ray & Sundberg, Per, 2002, Some heteronemerteans (Nemertea) from the Solomon Islands, pp. 1785-1804 in Journal of Natural History 36 (15) on page 1793, DOI: 10.1080/00222930110069041, http://zenodo.org/record/529884
Figure 4 in Swedish nemerteans (phylum Nemertea), with description of a new hoplonemertean genus and species
No full textFigure 4. Tetraneuronemertes lovgreni gen. et sp. n. Schematic camera lucida drawing of transverse section through the stomach region to show the general arrangement of the various structures in this part of the body. CM, body wall circular muscle layer; DE, dermis; EP, epidermis; IC, intestinal caecum; LM, body wall longitudinal muscle layer; LN, main longitudinal nerve cord; PR, proboscis; ST, stomach; UN, upper (dorsolateral) longitudinal nerve. Scale bar: 100 Mm.Published as part of Sundberg, Per, Gibson, Ray & Strand, Malin, 2007, Swedish nemerteans (phylum Nemertea), with description of a new hoplonemertean genus and species, pp. 2287-2299 in Journal of Natural History 41 (37-40) on page 2296, DOI: 10.1080/00222930701589939, http://zenodo.org/record/523306
Kukumia Gibson & Sundberg 2002, gen. nov.
No full textGenus Kukumia gen. nov. The genus is identied as monophyletic by the supposed synapomorphies of the rhynchocoel circular musculature being partly interwoven with the sub-rhynchocoeli c muscle plate, the presence of upper and lower mid-dorsal nerves, and the way the dermal connective tissues in the anterior body region are formed into concentric layers interwoven with muscle bundles. Type species Kukumia solomonensis sp. nov. Etymology The genus is named after Kukum, the area west of Honiara, Guadalcanal, where the nemertean was found. The specic epithet indicates that the taxon was rst established from the Solomon Islands. Diagnosis Heteronemertea with horizontal lateral cephalic slits; proboscis with two (outer circular, inner longitudinal) muscle layers and two muscle crosses; rhynchocoel not extending to posterior end of body; rhynchocoel wall circular muscle bres ventrally interwoven with longitudinal muscles of sub-rhynchocoelic muscle plate; dorsal brous core of cerebral ganglia forked only at rear into upper and lower branches; upper and lower mid-dorsal nerves present in foregut region of body; blood system around foregut developed into a vascular plexus; nervous system with neither neurochords nor neurochord cells; foregut with subepithelial gland cell layer but without obvious somatic musculature; dermis loosely arranged into outer glandular and inner connective tissue zones; caudal cirrus absent; cephalic glands absent; excretory system situated in foregut region of body; eyes absent; sexual state unknown.Published as part of Gibson, Ray & Sundberg, Per, 2002, Some heteronemerteans (Nemertea) from the Solomon Islands, pp. 1785-1804 in Journal of Natural History 36 (15) on page 1791, DOI: 10.1080/00222930110069041, http://zenodo.org/record/529884
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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