1,216 research outputs found
Experimental population genetics in insects: inheritance of ISSR-PCR bands in an artificial population
No full textHundsdoerfer, Anna K., Wink, Michael (2009): Experimental population genetics in insects: inheritance of ISSR-PCR bands in an artificial population. Zootaxa 2231 (1): 40-46, DOI: 10.11646/zootaxa.2231.1.2, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2231.1.
FIGURE 1 in Experimental population genetics in insects: inheritance of ISSR-PCR bands in an artificial population
No full textFIGURE 1. The NJ trees of the 0/1 matrices of the ISSR-PCR fingerprints. Numbers at internal branches indicate bootstrap support for the five families, if>50%.Published as part of Hundsdoerfer, Anna K. & Wink, Michael, 2009, Experimental population genetics in insects: inheritance of ISSR-PCR bands in an artificial population, pp. 40-46 in Zootaxa 2231 (1) on page 44, DOI: 10.11646/zootaxa.2231.1.2, http://zenodo.org/record/532072
FIGURE 1 in Experimental population genetics in insects: inheritance of ISSR-PCR bands in an artificial population
No full textFIGURE 1. The NJ trees of the 0/1 matrices of the ISSR-PCR fingerprints. Numbers at internal branches indicate bootstrap support for the five families, if>50%.Published as part of Hundsdoerfer, Anna K. & Wink, Michael, 2009, Experimental population genetics in insects: inheritance of ISSR-PCR bands in an artificial population, pp. 40-46 in Zootaxa 2231 (1) on page 44, DOI: 10.11646/zootaxa.2231.1.2, http://zenodo.org/record/532072
Petrocephalus longianalis Kramer & Bills & Skelton & Wink 2012, sp. nov.
No full text<i>Petrocephalus longianalis</i> sp. nov. <p> SAIAB 76758, holotype, specimen R9, 8.2 cm SL, Zambia Province: Luapula System: Luongo River: Lufubu River, Lufubu River Falls below bridge at Chipili on Mensa- Mununga road, 10 ◦ 43 ′ 46.92 ′′ S, 29 ◦ 05 ′ 36.96 ′′ E, coll: R. Bills, A. Chilala, J. Friel, 2 October 2005, field no. JPF-05-025,</p> <p> SAIAB 186060 (48), paratypes, 3.8–8.2 cm SL, Zambia Province: Luapula System: Luongo River: Lufubu River, Lufubu River Falls below bridge at Chipili on Mensa- Mununga road, 10 ◦ 43 ′ 46.92 ′′ S, 29 ◦ 05 ′ 36.96 ′′ E, coll: R. Bills, A. Chilala, J. Friel, 2 October 2005, field no. JPF-05-025,</p> <p> Non-types: SAIAB 76582 (5), 7.0– 7.3 cm SL, Zambia Province: Central System: Luapula River: Luapula, Luapula River Bridge, 12 ◦ 06 ′ 56.16 ′′ S, 29 ◦ 50 ′ 49.92 ′′ E, coll: R. Bills, A. Chilala, J. Friel, 22 September 2005, field no. JPF-05-006,</p> <p> SAIAB 76733 (2), 10.1–11.9 cm SL, Zambia Province: Luapula System: Luongo River at bridge on Kashiba-Mwenda road, 10 ◦ 28 ′ 12.72 ′′ S, 29 ◦ 01 ′ 28.2 ′′ E, coll: R. Bills, A. Chilala, J. Friel, 1 October 2005, field no. JPF-05-023.</p>Published as part of <i>Kramer, Bernd, Bills, Roger, Skelton, Paul & Wink, Michael, 2012, A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species, pp. 2179-2258 in Journal of Natural History 46 (35 - 36)</i> on page 2190, DOI: 10.1080/00222933.2012.708452, <a href="http://zenodo.org/record/4590828">http://zenodo.org/record/4590828</a>
A note on the biogeographical origin of the brine shrimp Artemia urmiana Günther, 1899 from Urmia Lake, Iran
No full textEimanifar, Amin, Asem, Alireza, Djamali, Morteza, Wink, Michael (2016): A note on the biogeographical origin of the brine shrimp Artemia urmiana Günther, 1899 from Urmia Lake, Iran. Zootaxa 4097 (2): 294-300, DOI: 10.11646/zootaxa.4097.2.1
A molecular phylogeny of the genus Psittacula sensu lato (Aves: Psittaciformes: Psittacidae: Psittacula, Psittinus, Tanygnathus, † Mascarinus) with taxonomic implications
No full textBraun, Michael P., Datzmann, Thomas, Arndt, Thomas, Reinschmidt, Matthias, Schnitker, Heinz, Bahr, Norbert, Sauer-Gürth, Hedwig, Wink, Michael (2019): A molecular phylogeny of the genus Psittacula sensu lato (Aves: Psittaciformes: Psittacidae: Psittacula, Psittinus, Tanygnathus, † Mascarinus) with taxonomic implications. Zootaxa 4563 (3): 547-562, DOI: 10.11646/zootaxa.4563.3.
Pollimyrus cuandoensis Kramer & Bank & Wink 2013, sp. nov.
No full textPollimyrus cuandoensis sp. nov. From Kwando River (total of 63 specimens): (4) Five specimens from Kongola Bridge, 10 April 1996, field codes Kw150d, Kw154d–Kw158d, SL 4.95–6.07 cm, water conductivity 100 µS / cm, 25–26 ◦ C, coll. F.H. Van der Bank and B. Kramer. (5) Sixteen specimens from Kongola Bridge, 25 August 1999, field codes Kon16G– Kon19G, Kon21G–Kon23G, Kon25G–Kon31G, Kon39G, Kon40G, water conductivity 236 µS / cm, 19 ◦ C, coll. F.H. Van der Bank and B. Kramer. (6) Two specimens from Kongola Bridge, 24 January 2001, field codes Kon01g, Kon 18g, water conductivity 160 µS / cm, 26.6 ◦ C, coll. F.H. Van der Bank, J. Engelbrecht and B. Kramer. (7) Forty specimens from Kongola Bridge, 8 August 2004, field codes Kong88–Kong95, Kong97–Kong105, Kong107–Kong129, water conductivity 175–209 µS / cm, 17.9 ◦ C, coll. H. Van der Bank and B. Kramer. (8) Twenty-four specimens from Nakatwa, 9–15 March 1994, N56ka–N59ka, N62ka–N71ka, N74ka–N79ka, N81ka, N82ka, N96ka, N97ka, water conductivity 130 µS / cm, 24.9 ◦ C, coll. F.H. Van der Bank and B. Kramer. (9) Eight specimens from Linyanti-Sampis, 8 April 1996, field codes Li01ny, Li02ny, Li04ny–Li06ny, Li08ny, Li09ny, Li11ny, water conductivity 100 µS / cm, 25–26 ◦ C, coll. F.H. Van der Bank and B. Kramer. (10) ZSM 39532 (14), ZSM 39533 (14), Twenty-eight specimens from Linyanti- Sampis, 8–10 September 1997, field codes Lin 01– Lin 14, Lin 15– Lin 28, coll. F.H. Van der Bank and B. Kramer. (11) Seven specimens from Nkasa Island, 9–10 September 1993, field codes 1Fish, 2Fish, 3Fish, 6Fish 10Fish, 12Fish, 13Fish, water conductivity 108 µS / cm, 18–19 ◦ C, coll. F.H. Van der Bank and B. Kramer.Published as part of Kramer, Bernd, Bank, Herman van der & Wink, Michael, 2013, Marked differentiation in a new species of dwarf stonebasher, Pollimyrus cuandoensis sp. nov. (Mormyridae: Teleostei), from a contact zone with two sibling species of the Okavango and Zambezi rivers, pp. 429-463 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 48 (7 - 8) on pages 454-455, DOI: 10.1080/00222933.2013.807950, http://zenodo.org/record/463157
Marcusenius multisquamatus Kramer & Wink 2013, sp. nov.
No full text<i>Marcusenius multisquamatus</i> sp. nov. <p>(Figure 4E)</p> <i>Type specimens</i> <p> Holotype: SAIAB 78781 (field no. KUNE24), live SL 20.9 cm, fixed SL 20.2 cm, fixed TL 22.9 cm, male, Namibia: Cunene River: Epupa Falls, Hot Springs Campsite, estimated 300 m upstream from the Falls, 17 ◦ 00 ′ 07 ′′ S, 13 ◦ 14 ′ 57 ′′ E, about 600 m altitude, 15 August 2006, coll. E. Swartz, B. Kramer and L. da Costa at ≤ 1.5 m water depth. Paratypes: SAIAB 78780 (2), SAIAB78792; ZSM 38526 (2), ZSM 38527 (2), size range 10.1–20.2 cm SL, Namibia: Cunene River: Epupa Falls, Hot Springs Campsite, estimated 300 m upstream from the Falls, 17 ◦ 00 ′ 07 ′′ S, 13 ◦ 14 ′ 57 ′′ E, about 600 m altitude, coll. E. Swartz, B. Kramer, and L. da Costa at ≤ 1.5 m water depth, Cunene River water at Hot Springs: Saturday, 12 August 2006, 12.50 h: 19.9 ◦ C, 48 µS cm−1, from 11 Augure 2006– 17 August 2006.</p> <p> <i>Non-types</i>. SAIAB 78785 (2), SAIAB 78789 (2), ZSM 38528, ZSM 38529 (2), size range 11.6–15.4 cm SL (live), Ruacana Falls, Hippo Pool Campsite, just below the Falls, 17 ◦ 24 ′ 24 ′′ S, 14 ◦ 13’01” E, about 800 m altitude, coll. E. Swartz and B. Kramer, at ≤ 1.5 m water depth, Cunene River water at Hippo Pool: Saturday, 19 August 2004, 10.00 h: 21.1 ◦ C, 45.8 µS cm−1; 20 August 2006, 10.00 h, 19.8 ◦ C, 45.4 µS cm−1; 21 August, 10.18 h, 19.4 ◦ C, 44.2 µS cm−1; from 18 August 2006 to 23 August 2006.</p> <p> ZSM 41761 (11), specimens R1 – R11, from the Cunene River mouth, 17 ◦ 15.606 ′ S, 11 ◦ 45.892 ′ E, altitude 2 m, 15 December 2009, coll. F.H. van der Bank; ZSM 41762 (2), specimens 49 and 49, 17 ◦ 16.325 ′ S, 11 ◦ 47.177 ′ E, 8 November 2010, coll. S. Voges; ZSM 41765, specimen C113, same place, 17 January 2011, coll. S. Voges; ZSM 41763, specimen Ü7, same place, 13 July 2011, coll. S. Voges; ZSM 41764 (9), specimens Ä110–Ä118, same place, 22 November 2011, coll. S. Voges. The specimens from the Cunene mouth were not studied for EOD.</p> <p> Samples examined for genetics. DNA samples are stored at the Institute of Pharmacy and Molecular Biotechnology, Heidelberg University (IPMB). IPMB 57459–57469, Namibia: Cunene River Mouth, 17 ◦ 15.606’ S, 11 ◦ 45.892’ E, coll. F.H. van der Bank, 15 December 2009;</p> <p> IPMB 43971–43974, Namibia: Cunene River: Epupa Falls, 17 ◦ 00’07” S, 13 ◦ 14’57” E, coll. E. Swartz and B. Kramer, 14 August 2006, 17 ◦ 00’07” S, E 013 ◦ 14’57” E; IPMB 43975–43978, as before, but 15 August 2006; IPMB 43993, as before, but 17 August 2006;</p> <p> IPMB 43980, Namibia: Cunene River: Ruacana Falls, 17 ◦ 24’24” S, 014 ◦ 13’01” E, coll. E. Swartz and B. Kramer, 19 August 2006; IPMB 43986, 43988, as before, but 21 August 2006; IPMB 43990, as before, but 22 August 2006; GenBank accession numbers: (KC 202227 - KC202230; KC202238 - KC 202258).</p> <i>Type locality</i> <p>Cunene River just above the Epupa Falls (Angolan/Namibian border, locality no. 9 on Figure 1.</p> <i>Diagnosis</i> <p>Body moderately long, prominent mobile and forward-extending mental lobe on lower jaw, median fins set well back with dorsal fin shorter than and originating behind anal fin, depth of caudal peduncle 38% (34–43%) of its length, 24 (23–25) dorsal fin rays, 30 (28–31) anal fin rays, 59 (56–64) scales in lateral series, 13 (12–16) scales around caudal peduncle, HL (head length) 20% (19–21%) of SL, BD (body depth) 29% (27–32%) of SL, LD (dorsal fin length) 19.4% (18.1–22.3%) of SL, LSo (length of snout) 48% (45–50%) HL, LA (anal fin length) 24.2% (22.7–25.3%) of SL, CPL (length of caudal peduncle) 18.3% (16.3–19.9%) of SL. (See also Remarks.)</p> <i>Description</i> <p> Head with terminal mouth well in front of eye, mental lobe on lower jaw protruding beyond upper jaw. Head and body dorsolaterally compressed. Dorsal fin situated about two-thirds of standard length from snout, obliquely oriented, anteriorly higher and posteriorly lower, distal margin sometimes only slightly crescent-shaped with anterior two or three rays longer than posterior rays, number of rays 23 (<i>n</i> = 5), 24 (<i>n</i> = 4), 25 (<i>n</i> = 6); anal fin opposite dorsal fin with distinctly more anterior origin, obliquely oriented, anteriorly lower and posteriorly higher, anterior rays longer than posterior ones, especially in males where they also appear stronger and often darkened, distal margin crescent-shaped (in males only posterior to rounded, elongated anterior part of fin), number of rays 28 (<i>n</i> = 1), 29 (<i>n</i> = 4), 30 (<i>n</i> = 7), 31 (<i>n</i> = 3). Scales cycloid with reticulate striae, scales extending anteriorly to operculum and pectoral fins (beyond pelvic fins). Scales on caudal peduncle circumference, 12 (<i>n</i> = 5), 13 (<i>n</i> = 4), 14 (<i>n</i> = 5), 16 (<i>n</i> = 1) Caudal peduncle relatively deep, subcylindrical entire length, usually 18.3% (16.3–19.9%) in SL (Table A1, in Appendix A). Electric organ discharge biphasic with weak pre-potential (Figure 5). Males approaching sexual maturity develop a kink in the base of the anal fin (e.g. Figure 4C) that is absent in juveniles and females where the anal fin base is straight. Colour in life: brownish grey with many distinct dark-brown blotches, except on head and belly, purple hue depending on the angle of light incidence, paired fins light and transparent.</p> <i>Colour in preservation</i> <p>Medium brown, with darker, irregular blotches.</p> <i>Ecology</i> <p>The Cunene is a major, perennial and independent river that arises from the Angolan central highlands of Bié and flows southward towards the Namibian border, shortly before it turns west and breaches the coastal mountain ranges (Zebra and Baynes Mountains) to drain into the Atlantic. In the section between Ruacana Falls and Epupa Falls, water level was regulated by a hydroelectric company (NamPower) at Ruacana Falls. The Ruacana Falls were bare rock and completely dry, apparently because the water dammed above Ruacana Falls (Calueque Dam) was all fed into the hydroelectric power turbines. When the water level below the dam was kept high, fishing with gill nets and other methods generally proved unproductive. The Epupa Falls consist of a main fall with many lesser falls beside this over a wide front, and mormyrid EODs were demonstrated with an electro-acoustic, custom-built “fish detector” also below the Falls although the fish were not caught. Although we were warned of a high incidence of crocodiles we saw only a few, and no hippopotami. River borders were covered mainly by dense semi-aquatic shrubs at Epupa Falls, and dense reed beds also with shrubs at Ruacana Falls. Palm trees (Makalani palms) were common at Epupa, much less so at Ruacana where dicotyledonous trees dominated.</p> <i>Distribution</i> <p>At present known only from the lower Cunene River, from just below Ruacana Falls to the Cunene mouth. This river section forms the Angolan/Namibian border.</p> <i>Relationships</i> <p> Closest relationships are assumed with <i>M. altisambesi</i> to the east of <i>M. multisquamatus</i> sp. nov. on the basis of morphological similarity, EODs and genetics.</p> <i>Etymology</i> <p> <i>Marcusenius multisquamatus</i> sp. nov. refers to the highest number of lateral line scales among the different forms of southern African bulldog fish (excluding the three Mossamedes / Cunene specimens (BMNH 1907.6.29.231–233) from any location on the Cunene up to 300 km north of the Angolan/Namibian border).</p> <i>Remarks</i> <p> Compared with the <i>M. angolensis</i> holotype, <i>M. multisquamatus</i> sp. nov. specimens had lower counts in nD, no. of dorsal fin rays (maximum, 25 in the latter versus 26 in the former, that is, no overlap) and nA, number of anal fin rays (maximum, 31 versus 33), shorter LA, anal fin length (maximum, 0.253 versus 0.258 of SL) and PDL, predorsal length (maximum, 0.665 versus 0.674 of SL), smaller ratio HL/Na, head length/separation of nares (maximum, 15.52 versus 15.96), but a greater BD, body depth (minimum 0.271 versus 0.266 of SL).</p> <p> When compared with the other <i>Marcusenius</i> species within the Okavango – Kwando– Zambezi System, <i>M. multisquamatus</i> sp. nov. is characterized by a specific morphology and EOD in multivariate analysis, specific bands in genomic ISSR fingerprinting, and as a monophyletic taxon in mitochondrial DNA (mtDNA) cytochrome <i>b</i> analysis. To identify a specimen in hand it is best to rely on several characters in combination to exclude mistakes due to outliers. The 90th percentile of the distribution of HL (measured as HL/SL, head length to standard length) of <i>M. multisquamatus</i> sp. nov. specimens, is shorter than the 10th percentile for <i>M. macrolepidotus</i> (together with <i>M. angolensis</i>, shortest HL of all). The BD/SL ratio (body depth to standard length) of <i>M. multisquamatus</i> sp. nov. overlaps with that of <i>M. macrolepidotus</i> by less than one quartile; the same holds true for the distributions of nA (no. of anal fin rays), nD (no. of dorsal fin rays), LD/SL (ratio of dorsal fin length to standard length) in which the means or medians are greater for <i>M. multisquamatus</i> sp. nov., and SPc, number of scales around caudal peduncle in which the median for <i>M. multisquamatus</i> sp. nov. is smaller. The EOD of <i>M. multisquamatus</i> sp. nov. has a leading head-negativity of miniature amplitude that is usually not present in the <i>M. macrolepidotus</i> EOD. <i>Marcusenius multisquamatus</i> sp. nov. and <i>M. macrolepidotus</i> are clearly differentiated in ISSR bands 2, 6 and 8 (Table 4).</p> <p> There is less than a 10% overlap of distributions between the greater LSo/HL (length of snout to head length) of <i>M. multisquamatus</i> sp. nov. specimens compared with that of <i>M. altisambesi</i> from the Upper Zambezi, and less than 25% overlap for <i>M. altisambesi</i> from the Okavango. Also, there is less than one quartile overlap for LA/SL (anal fin length to SL), LSc/HL (length of snout to head length) and CL/HL (chin length to head length) of <i>M. altisambesi</i> from the Upper Zambezi compared with <i>M. multisquamatus</i> sp. nov. and less than one quartile overlap for lower SLS (no. of lateral line scales) of <i>M. altisambesi</i> from the Okavango compared with <i>M. multisquamatus</i> sp. nov. Okavango bulldog fish are distinguished by an SPc (no. of scales around caudal peduncle) of exclusively 12 (median 12, same median for Upper Zambezi bulldog fish) whereas SPc ranges from 12–16 in <i>M. multisquamatus</i> sp. nov. (median, 13). ISSR band 2 is specific for <i>M. multisquamatus</i> sp. nov. and band 6 for <i>M. altisambesi.</i></p>Published as part of <i>Kramer, Bernd & Wink, Michael, 2013, East-west differentiation in the Marcusenius macrolepidotus species complex in Southern Africa: the description of a new species for the lower Cunene River, Namibia (Teleostei: Mormyridae), pp. 2327-2362 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 47 (35 - 36)</i> on pages 2339-2343, DOI: 10.1080/00222933.2013.798699, <a href="http://zenodo.org/record/5197590">http://zenodo.org/record/5197590</a>
Reprising the taxonomy of Cyprus Scops Owl Otus (scops) cyprius, a neglected island endemic
No full textFlint, Peter, Whaley, David, Kirwan, Guy M., Charalambides, Melis, Schweizer, Manuel, Wink, Michael (2015): Reprising the taxonomy of Cyprus Scops Owl Otus (scops) cyprius, a neglected island endemic. Zootaxa 4040 (3): 301-316, DOI: 10.11646/zootaxa.4040.3.
Pollimyrus isidori
No full textPollimyrus isidori (Valenciennes, 1846) GenBank accession no. AF095302 (Sullivan et al. 2000).Published as part of Kramer, Bernd, Bank, Herman van der & Wink, Michael, 2013, Marked differentiation in a new species of dwarf stonebasher, Pollimyrus cuandoensis sp. nov. (Mormyridae: Teleostei), from a contact zone with two sibling species of the Okavango and Zambezi rivers, pp. 429-463 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 48 (7 - 8) on page 456, DOI: 10.1080/00222933.2013.807950, http://zenodo.org/record/463157
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