1,721,041 research outputs found
Leech anticoagulants are ancestral and likely to be multifunctional
No full textIwama, Rafael Eiji, Tessler, Michael, Kvist, Sebastian (2022): Leech anticoagulants are ancestral and likely to be multifunctional. Zoological Journal of the Linnean Society 196 (1): 137-148, DOI: 10.1093/zoolinnean/zlab126, URL: https://academic.oup.com/zoolinnean/article/196/1/137/655193
FIGURE 1 in Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae)
No full textFIGURE 1. Map of the State of Chiapas, Mexico, with the collecting localities of leeches.Published as part of <i>Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, American Museum Novitates 2018 (3895)</i> on page 1, DOI: 10.1206/3895.1, <a href="http://zenodo.org/record/10110402">http://zenodo.org/record/10110402</a>
FIGURE 7 in Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae)
No full textFIGURE 7. Maximum likelihood phylogenetic reconstruction of the family Erpobdellidae focused on establishing the closest relatives to Erpobdella adani. Support values are based on 1000 bootstrap pseudoreplicates.Published as part of <i>Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, American Museum Novitates 2018 (3895)</i> on page 1, DOI: 10.1206/3895.1, <a href="http://zenodo.org/record/10110402">http://zenodo.org/record/10110402</a>
FIGURES 16–19 in Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae)
No full textFIGURES 16–19. Rhynchobdellida from Chiapas, Mexico. Helobdella socimulcensis: 16. dorsal view, 17. ventral view. Placobdella ringueleti: 18. dorsal view, 19. ventral view.Published as part of <i>Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, American Museum Novitates 2018 (3895)</i> on page 1, DOI: 10.1206/3895.1, <a href="http://zenodo.org/record/10110402">http://zenodo.org/record/10110402</a>
FIGURES 2–6. Erpobdella adani. 2. Holotype, dorsal view. 3. Holotype, ventral view. 4 in Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae)
No full textFIGURES 2–6. Erpobdella adani. 2. Holotype, dorsal view. 3. Holotype, ventral view. 4. Paratype, male gonopore (black arrow), female gonopore (white arrow). 5. Paratype, ventral anterior end, anterior sucker. 6. Illustration of the male (dark gray) and female (light gray) reproductive systems, atrial horns (ah), ejaculatory duct (ed), ventral nerve cord (nc), ovary (ov); testisacs not shown.Published as part of <i>Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, American Museum Novitates 2018 (3895)</i> on page 1, DOI: 10.1206/3895.1, <a href="http://zenodo.org/record/10110402">http://zenodo.org/record/10110402</a>
Figure 2 in Leech anticoagulants are ancestral and likely to be multifunctional
No full textFigure 2. Best-scoring maximum likelihood trees resulting from the analysis of destabilase (A; log likelihood [ln L] = −8230.744), manillase (B; ln L = −27279.363), saratin and leech antiplatelet protein (LAPP) (C; ln L = −4758.748) and cystatin (D; ln L = −2474.943) datasets. Branches drawn in black represent non-leech lineages; branches in red represent bloodfeeding leech lineages; branches in blue represent non-bloodfeeding leech lineages. Red boxes represent putative orthologues of archetypal leech anticoagulants. For the remaining gene trees, see the Supporting Information (Fig. S1).Published as part of Iwama, Rafael Eiji, Tessler, Michael & Kvist, Sebastian, 2022, Leech anticoagulants are ancestral and likely to be multifunctional, pp. 137-148 in Zoological Journal of the Linnean Society 196 (1) on page 142, DOI: 10.1093/zoolinnean/zlab126, http://zenodo.org/record/703153
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Helobdella octatestisaca Lai and Chang 2009
No full text<i>Helobdella octatestisaca</i> Lai and Chang, 2009 Figures 14–15 <p> The presence of a chitinous nuchal scute; dorsal and ventral surfaces with inconspicuous papillae; no metameric pigmentation patterns; eyespots in one pair, each shaped somewhat triangularly, almost touching each other is consistent with the description of <i>Helobdella octatestisaca</i> (see Salas-Montiel et al., 2014). Found on the underside of submerged rocks and plants. Nonblood-feeding (liquidosomatophagous). New state record; new locality records: Bosque Azul, Lagunas de Montebello (16°07′37.83″N, 91°43′53.68″W; 1462 m) 30 specimens collected January 25, 2016, by M. Tessler, J. Arroyave, S. Contreras, and A. Oceguera-Figueroa (CNI 27); Osumacinta Dam (16°57′47.5″N, 93°06′21.82″W; 207 m) 16 specimens collected January 24, 2016, by M. Tessler, J. Arroyave, S. Contreras, and A. Oceguera-Figueroa (CNI 28). GenBank cox1 barcode sequence accessions: MG 821611, MG 821612, MG 821613, and MG 821614.</p>Published as part of <i>Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae), pp. 1 in American Museum Novitates 2018 (3895)</i> on page 1, DOI: 10.1206/3895.1, <a href="http://zenodo.org/record/10110402">http://zenodo.org/record/10110402</a>
Diestecostoma octannulata Moore 1946
No full text<i>Diestecostoma octannulata</i> Moore, 1946 Figures 10–11 <p> The presence of five eyespot pairs arranged in a parabolic arc (first four pairs on contiguous annuli and two annuli separating fourth and fifth pair), complete somite eight annulate (16 + 1/2 annuli between gonopores) is consistent with the description of <i>Diestecostoma octannulata</i> Moore, 1946. Found in a rotten tree under the bark. Terrestrial leech; presumably non-blood-feeding (macrophagous). New country record; new state record; new locality record: Mexico, Volcán Tacaná, la Caracola (15°06′19.39″N, 92°05′47.27″W; 2452 m), one specimen collected July, 25, 2015, by Alejandro Oceguera-Figueroa (CNI 15). GenBank cox1 barcode sequence accession: MG 821605.</p>Published as part of <i>Tessler, Michael, Siddall, Mark E. & Oceguera-Figueroa, Alejandro, 2018, Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida: Erpobdellidae), pp. 1 in American Museum Novitates 2018 (3895)</i> on page 1, DOI: 10.1206/3895.1, <a href="http://zenodo.org/record/10110402">http://zenodo.org/record/10110402</a>
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