298 lines
40 KiB
XML
298 lines
40 KiB
XML
<document id="A73559D83D3771E2D35F8C6760B9A80F" ID-DOI="10.11646/phytotaxa.186.2.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="5146939" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1627605763673" checkinUser="felipe" docAuthor="Peng, Yumei, Rioual, Patrick, Levkov, Zlatko, Williams, David M. & Jin, Zhangdong" docDate="2014" docId="713ED41AFF90FFFFE3CFFF695428FEAE" docLanguage="en" docName="Phytotaxa.186.2.061-074.pdf" docOrigin="Phytotaxa 186 (2)" docSource="http://dx.doi.org/10.11646/phytotaxa.186.2.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.7:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="7" docTitle="Hippodonta qinghainensis Peng & Rioual & Levkov & Williams & Jin 2014, sp. nov." docType="treatment" docVersion="2" lastPageNumber="65" masterDocId="8D07AC62FF94FFFAE347FF9D5771FFAF" masterDocTitle="Morphology and ultrastructure of Hippodonta qinghainensis sp. nov. (Bacillariophyceae), a new diatom from Lake Qinghai, China" masterLastPageNumber="74" masterPageNumber="61" pageNumber="65" updateTime="1699030568852" updateUser="plazi" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="2070F60BA20BCE7E80570EA83D25C464">Morphology and ultrastructure of Hippodonta qinghainensis sp. nov. (Bacillariophyceae), a new diatom from Lake Qinghai, China</mods:title>
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<mods:namePart id="44A854AFFB1652D48B39A33E0D17250F">Peng, Yumei</mods:namePart>
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<mods:affiliation id="2FED6F123913FD8BA8C00A9186EAFB74">University of Chinese Academy of Sciences, Beijing 100049, China</mods:affiliation>
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<mods:namePart id="35E16BA0BDD7137CEC90B79E796B50C5">Rioual, Patrick</mods:namePart>
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<mods:affiliation id="523F535783915612F4895790B47FFE46">Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, P. O. box 9825, Beijing 100029, China</mods:affiliation>
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<mods:namePart id="16333ED09076BCB58E52575E83FE4D84">Levkov, Zlatko</mods:namePart>
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<mods:affiliation id="39B5B99714070BB4A1F86471176CB014">Institute of Biology, Faculty of Natural Sciences, Ss Cyril and Methodius University, Archimedova 3, Skopje, R. Macedonia Department of Life Sciences, the Natural History Museum, Cromwell Road, London, United Kingdom</mods:affiliation>
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<mods:namePart id="9C73E85495F226483E4FEE4CB72AA1C9">Williams, David M.</mods:namePart>
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<mods:namePart id="7C7C5A7DBD1AFC9E78D8AB3AAC72ABD2">Jin, Zhangdong</mods:namePart>
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<mods:affiliation id="43E4EAC94EE69874BD4D4C9516602794">Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China</mods:affiliation>
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<mods:title id="4B963222E0A6318FCD55133F278A8C2A">Phytotaxa</mods:title>
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<mods:date id="64F45A60B631433FE53FF8FC82FB8911">2014</mods:date>
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<taxonomicName id="3E971E8FFF90FFFEE3CFFF695519FEA1" authority="Peng & Rioual" authorityName="Peng & Rioual & Levkov & Williams & Jin" authorityYear="2014" box="[136,616,244,271]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="qinghainensis" status="sp. nov.">
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<emphasis id="CBE3B91EFF90FFFEE3CFFF6956CBFEA0" bold="true" box="[136,442,244,271]" italics="true" pageId="4" pageNumber="65">Hippodonta qinghainensis</emphasis>
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Peng & Rioual
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<taxonomicNameLabel id="D0D00465FF90FFFEE129FF6855B2FEA1" box="[622,707,245,270]" pageId="4" pageNumber="65" rank="species">sp. nov.</taxonomicNameLabel>
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(
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<figureCitation id="61AC7989FF90FFFEE196FF695432FEA1" box="[721,835,244,270]" captionStart-0="FIGURES 3–27" captionStart-1="FIGURES 28–33" captionStart-2="FIGURES 34–37" captionStartId-0="5.[136,243,2007,2029]" captionStartId-1="6.[136,243,1756,1778]" captionStartId-2="7.[136,243,1910,1932]" captionTargetBox-0="[170,1420,332,1968]" captionTargetBox-1="[179,1408,667,1714]" captionTargetBox-2="[266,1324,848,1875]" captionTargetId-0="figure-64@5.[151,1435,317,1982]" captionTargetId-1="figure-171@6.[160,1427,651,1731]" captionTargetId-2="figure-309@7.[248,1339,835,1885]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionTargetPageId-2="7" captionText-0="FIGURES 3–27. LM images of Hippodonta qinghainensis. Scale bar = 10 µm." captionText-1="FIGURES 28–33. SEM images of Hippodonta qinghainensis. Fig. 28. External view of entire valve. Striae composed of simple lineolae throughout. Figs 29, 31. Close-up of apices. Terminal pores of raphe are weakly deflected towards one valve side. Two rows of apical areolae at the valve apices.Fig.30.Close-up of central area.External central raphe endingsweakly developed, teardrop-shapeddepressions. Fig. 32. External view of complete frustules showing broad, unornamented girdle. Fig. 33. Detail of one apex in girdle view, showing two rows of apical areolae. Scale bars in Figs 28, 32, 33 = 2 µm; Figs 29, 30, 31 = 1 µm." captionText-2="FIGURES 34–37. SEM images of Hippodonta qinghainensis. Figs 34, 35. Internal view of entire valves of different size. Striae composed of simple lineolae, positioned in quite shallow and narrow depressions; interstriae strongly pronounced. Some lineolae are still covered by volae. Raphe-sternum thickened towards central raphe endings. Fig. 36. Internal view, detail of apex. Linear raphe slit distally terminated by crescent-shaped helictoglossa, positioned just below terminal area. Fig. 37. Internal, oblique view showing two rows of lineolae around the valve apex. Scale bars in Fig. 34 = 3 µm; Fig. 35, 37 = 2 µm; Fig. 36 = 1 µm." figureDoi-0="http://doi.org/10.5281/zenodo.5146945" figureDoi-1="http://doi.org/10.5281/zenodo.5146947" figureDoi-2="http://doi.org/10.5281/zenodo.5146949" httpUri-0="https://zenodo.org/record/5146945/files/figure.png" httpUri-1="https://zenodo.org/record/5146947/files/figure.png" httpUri-2="https://zenodo.org/record/5146949/files/figure.png" pageId="4" pageNumber="65">Figs 3–37</figureCitation>
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)
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(
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slide IGGDC-Qtrap-
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!,
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specimen illustrated in
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<figureCitation id="61AC7989FF90FFFEE12FFE1555D6FE32" box="[616,679,392,414]" captionStart="FIGURES 3–27" captionStartId="5.[136,243,2007,2029]" captionTargetBox="[170,1420,332,1968]" captionTargetId="figure-64@5.[151,1435,317,1982]" captionTargetPageId="5" captionText="FIGURES 3–27. LM images of Hippodonta qinghainensis. Scale bar = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.5146945" httpUri="https://zenodo.org/record/5146945/files/figure.png" pageId="4" pageNumber="65">Fig 11</figureCitation>
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, located using
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16/4);
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710 (isotype slide)
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.
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<paragraph id="F928650CFF90FFFEE3CFFE5053A9FD4C" blockId="4.[136,1452,460,1099]" pageId="4" pageNumber="65">
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LM (
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<figureCitation id="61AC7989FF90FFFEE381FE515631FE49" box="[198,320,460,486]" captionStart="FIGURES 3–27" captionStartId="5.[136,243,2007,2029]" captionTargetBox="[170,1420,332,1968]" captionTargetId="figure-64@5.[151,1435,317,1982]" captionTargetPageId="5" captionText="FIGURES 3–27. LM images of Hippodonta qinghainensis. Scale bar = 10 µm." figureDoi="http://doi.org/10.5281/zenodo.5146945" httpUri="https://zenodo.org/record/5146945/files/figure.png" pageId="4" pageNumber="65">Figs 3–27</figureCitation>
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): Frustules rectangular with weakly concave central nodule in girdle view. Cells solitary, valves elliptic-lanceolate to rhombic-lanceolate with obtusely rounded ends, not protracted. Valve length 16–50 µm, width 5–8 µm. Axial area narrow and linear, weakly expanding into a small rectangular to panduriform central area, defined by two shortened central striae. Terminal areas clearly distinguishable in LM, lunate to semicircular and cap-like. Raphe filiform, moderately pronounced, with simple linear or teardrop-shaped central endings, weakly deflected at the terminal ends. Striae coarse,
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<quantity id="3E6FC8E9FF90FFFEE297FD1D5554FD35" box="[464,549,640,666]" metricMagnitude="-1" metricUnit="m" metricValue="2.413" metricValueMax="2.794" metricValueMin="2.032" pageId="4" pageNumber="65" unit="in" value="9.5" valueMax="11.0" valueMin="8.0">8–11 in</quantity>
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10 µm, moderately radiate in the middle, becoming parallel to convergent near valve ends. Interstriae of equal or narrower width than striae near the valve apices, becoming wider than striae in the middle of valve. Lineolae composing the striae densely spaced within each, not discernible in LM.
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</paragraph>
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<paragraph id="F928650CFF90FFFEE3FAFD715365FBE5" blockId="4.[136,1452,460,1099]" pageId="4" pageNumber="65">
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SEM (
|
||
<figureCitation id="61AC7989FF90FFFEE24EFD7156FEFCA9" box="[265,399,748,774]" captionStart-0="FIGURES 28–33" captionStart-1="FIGURES 34–37" captionStartId-0="6.[136,243,1756,1778]" captionStartId-1="7.[136,243,1910,1932]" captionTargetBox-0="[179,1408,667,1714]" captionTargetBox-1="[266,1324,848,1875]" captionTargetId-0="figure-171@6.[160,1427,651,1731]" captionTargetId-1="figure-309@7.[248,1339,835,1885]" captionTargetPageId-0="6" captionTargetPageId-1="7" captionText-0="FIGURES 28–33. SEM images of Hippodonta qinghainensis. Fig. 28. External view of entire valve. Striae composed of simple lineolae throughout. Figs 29, 31. Close-up of apices. Terminal pores of raphe are weakly deflected towards one valve side. Two rows of apical areolae at the valve apices.Fig.30.Close-up of central area.External central raphe endingsweakly developed, teardrop-shapeddepressions. Fig. 32. External view of complete frustules showing broad, unornamented girdle. Fig. 33. Detail of one apex in girdle view, showing two rows of apical areolae. Scale bars in Figs 28, 32, 33 = 2 µm; Figs 29, 30, 31 = 1 µm." captionText-1="FIGURES 34–37. SEM images of Hippodonta qinghainensis. Figs 34, 35. Internal view of entire valves of different size. Striae composed of simple lineolae, positioned in quite shallow and narrow depressions; interstriae strongly pronounced. Some lineolae are still covered by volae. Raphe-sternum thickened towards central raphe endings. Fig. 36. Internal view, detail of apex. Linear raphe slit distally terminated by crescent-shaped helictoglossa, positioned just below terminal area. Fig. 37. Internal, oblique view showing two rows of lineolae around the valve apex. Scale bars in Fig. 34 = 3 µm; Fig. 35, 37 = 2 µm; Fig. 36 = 1 µm." figureDoi-0="http://doi.org/10.5281/zenodo.5146947" figureDoi-1="http://doi.org/10.5281/zenodo.5146949" httpUri-0="https://zenodo.org/record/5146947/files/figure.png" httpUri-1="https://zenodo.org/record/5146949/files/figure.png" pageId="4" pageNumber="65">Figs 28–37</figureCitation>
|
||
): Externally, valve face gently curved in transapical section merging gradually into mantle. Raphe slits quite fine.Terminal pores of raphe distant, weakly advancing into terminal area, deflected towards secondary side of valve (i.e. where the Voigt discordances are present). Central raphe endings small, forming teardrop-shaped depressions and slightly bent towards same side with terminal end. Striae uniseriate throughout valve face and mantle. Central row of lineolae present on valve mantle only. Lineolae linear,
|
||
<quantity id="3E6FC8E9FF90FFFEE0EAFCE15363FC39" box="[941,1042,892,919]" metricMagnitude="0" metricUnit="m" metricValue="1.1303" metricValueMax="1.2953999999999999" metricValueMin="0.9652" pageId="4" pageNumber="65" unit="in" value="44.5" valueMax="51.0" valueMin="38.0">38–51 in</quantity>
|
||
10 µm. Two rows of apical areolae surround the valve apex, positioned on apical valve mantle. Prominent hyaline area present throughout valve mantle. Girdle band quite broad and unornamented. Internally, striae positioned in shallow linear depressions. Central raphe endings simple, linear, gradually disappearing. Semicircular hyaline area clearly developed in central area. Linear raphe slits distally terminated with weak, crescent-shaped helictoglossae, positioned just before terminal area and in line with raphe slits. Terminal area internally quite prominent, boomerang-shape.
|
||
</paragraph>
|
||
<caption id="ADE83584FF90FFFEE3CFFBE7532CFB19" pageId="4" pageNumber="65" startId="4.[136,224,1146,1170]">
|
||
<paragraph id="F928650CFF90FFFEE3CFFBE7532CFB19" blockId="4.[136,1451,1146,1206]" pageId="4" pageNumber="65">
|
||
<emphasis id="CBE3B91EFF90FFFEE3CFFBE75789FB3D" bold="true" box="[136,248,1146,1170]" pageId="4" pageNumber="65">TABLE 1</emphasis>
|
||
. Limnological characteristics of surface water samples collected from Lake Qinghai. The given values were averaged from 5 samples collected from various stations across the lake in September 2012.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="F928650CFF90FFFEE3D7FB5F5380FA10" pageId="4" pageNumber="65">
|
||
<table id="8B9797ACFF900005E3D7FB5F538CFA6A" box="[144,1277,1218,1477]" gridcols="4" gridrows="8" pageId="4" pageNumber="65">
|
||
<tr id="47A7674EFF900005E3D7FB5F538CFB74" box="[144,1277,1218,1243]" gridrow="0" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FB5F562EFB74" box="[144,351,1218,1243]" gridcol="0" gridrow="0" pageId="4" pageNumber="65">Variable (unit)</th>
|
||
<th id="04760E32FF900005E29FFB5F551BFB74" box="[472,618,1218,1243]" gridcol="1" gridrow="0" pageId="4" pageNumber="65">Average value</th>
|
||
<th id="04760E32FF900005E066FB5F54C5FB74" box="[801,948,1218,1243]" gridcol="2" gridrow="0" pageId="4" pageNumber="65">Variable (unit)</th>
|
||
<th id="04760E32FF900005E72DFB5F538CFB74" box="[1130,1277,1218,1243]" gridcol="3" gridrow="0" pageId="4" pageNumber="65">Average value</th>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FB7E538CFB54" box="[144,1277,1251,1275]" gridrow="1" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FB7E562EFB54" box="[144,351,1251,1275]" gridcol="0" gridrow="1" pageId="4" pageNumber="65">pH</th>
|
||
<td id="04760E32FF900005E29FFB7E551BFB54" box="[472,618,1251,1275]" gridcol="1" gridrow="1" pageId="4" pageNumber="65">9.21 ±0.02</td>
|
||
<td id="04760E32FF900005E066FB7E54C5FB54" box="[801,948,1251,1275]" gridcol="2" gridrow="1" pageId="4" pageNumber="65">Li (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFB7E538CFB54" box="[1130,1277,1251,1275]" gridcol="3" gridrow="1" pageId="4" pageNumber="65">0.67 ±0.03</td>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FA9E538CFAB3" box="[144,1277,1283,1308]" gridrow="2" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FA9E562EFAB3" box="[144,351,1283,1308]" gridcol="0" gridrow="2" pageId="4" pageNumber="65">EC (mS/cm)</th>
|
||
<td id="04760E32FF900005E29FFA9E551BFAB3" box="[472,618,1283,1308]" gridcol="1" gridrow="2" pageId="4" pageNumber="65">15.62 ±1.24</td>
|
||
<td id="04760E32FF900005E066FA9E54C5FAB3" box="[801,948,1283,1308]" gridcol="2" gridrow="2" pageId="4" pageNumber="65">Na (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFA9E538CFAB3" box="[1130,1277,1283,1308]" gridcol="3" gridrow="2" pageId="4" pageNumber="65">3359.0 ±97.7</td>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FAB9538CFA93" box="[144,1277,1316,1340]" gridrow="3" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FAB9562EFA93" box="[144,351,1316,1340]" gridcol="0" gridrow="3" pageId="4" pageNumber="65">Alkalinity (mmol/L)</th>
|
||
<td id="04760E32FF900005E29FFAB9551BFA93" box="[472,618,1316,1340]" gridcol="1" gridrow="3" pageId="4" pageNumber="65">25.61 ±1.85</td>
|
||
<td id="04760E32FF900005E066FAB954C5FA93" box="[801,948,1316,1340]" gridcol="2" gridrow="3" pageId="4" pageNumber="65">K (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFAB9538CFA93" box="[1130,1277,1316,1340]" gridcol="3" gridrow="3" pageId="4" pageNumber="65">140.6 ±4.8</td>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FAD8538CFAF1" box="[144,1277,1349,1374]" gridrow="4" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FAD8562EFAF1" box="[144,351,1349,1374]" gridcol="0" gridrow="4" pageId="4" pageNumber="65">DOC (mg/L)</th>
|
||
<td id="04760E32FF900005E29FFAD8551BFAF1" box="[472,618,1349,1374]" gridcol="1" gridrow="4" pageId="4" pageNumber="65">6.93 ±3.56</td>
|
||
<td id="04760E32FF900005E066FAD854C5FAF1" box="[801,948,1349,1374]" gridcol="2" gridrow="4" pageId="4" pageNumber="65">Mg (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFAD8538CFAF1" box="[1130,1277,1349,1374]" gridcol="3" gridrow="4" pageId="4" pageNumber="65">644.9 ±18.1</td>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FAFB538CFA2C" box="[144,1277,1382,1411]" gridrow="5" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FAFB562EFA2C" box="[144,351,1382,1411]" gridcol="0" gridrow="5" pageId="4" pageNumber="65">SiO2 (mg/L)</th>
|
||
<td id="04760E32FF900005E29FFAFB551BFA2C" box="[472,618,1382,1411]" gridcol="1" gridrow="5" pageId="4" pageNumber="65">0.91 ±0.22</td>
|
||
<td id="04760E32FF900005E066FAFB54C5FA2C" box="[801,948,1382,1411]" gridcol="2" gridrow="5" pageId="4" pageNumber="65">Ca (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFAFB538CFA2C" box="[1130,1277,1382,1411]" gridcol="3" gridrow="5" pageId="4" pageNumber="65">14.2 ±3.5</td>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FA1B538CFA30" box="[144,1277,1414,1439]" gridrow="6" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FA1B562EFA30" box="[144,351,1414,1439]" gridcol="0" gridrow="6" pageId="4" pageNumber="65">TP (µg/L)</th>
|
||
<td id="04760E32FF900005E29FFA1B551BFA30" box="[472,618,1414,1439]" gridcol="1" gridrow="6" pageId="4" pageNumber="65">63 ±55</td>
|
||
<td id="04760E32FF900005E066FA1B54C5FA30" box="[801,948,1414,1439]" gridcol="2" gridrow="6" pageId="4" pageNumber="65">Cl (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFA1B538CFA30" box="[1130,1277,1414,1439]" gridcol="3" gridrow="6" pageId="4" pageNumber="65">7157.9 ±205.4</td>
|
||
</tr>
|
||
<tr id="47A7674EFF900005E3D7FA3A538CFA6A" box="[144,1277,1447,1477]" gridrow="7" pageId="4" pageNumber="65">
|
||
<th id="04760E32FF900005E3D7FA3A562EFA6A" box="[144,351,1447,1477]" gridcol="0" gridrow="7" pageId="4" pageNumber="65">TN (mg/L)</th>
|
||
<td id="04760E32FF900005E29FFA3A551BFA6A" box="[472,618,1447,1477]" gridcol="1" gridrow="7" pageId="4" pageNumber="65">1.48 ±0.22</td>
|
||
<td id="04760E32FF900005E066FA3A54C5FA6A" box="[801,948,1447,1477]" gridcol="2" gridrow="7" pageId="4" pageNumber="65">SO4 (mg/L)</td>
|
||
<td id="04760E32FF900005E72DFA3A538CFA6A" box="[1130,1277,1447,1477]" gridcol="3" gridrow="7" pageId="4" pageNumber="65">2169.0 ±69.5</td>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
<paragraph id="F928650CFF90FFFEE3FAFA765619F986" blockId="4.[136,1452,1515,2081]" pageId="4" pageNumber="65">
|
||
<emphasis id="CBE3B91EFF90FFFEE3FAFA7656F0F9AA" bold="true" box="[189,385,1515,1541]" pageId="4" pageNumber="65">Observations:—</emphasis>
|
||
As the valves are arched and the girdle relatively broad, they often lie in girdle view or at an angle in valve view.
|
||
</paragraph>
|
||
<paragraph id="F928650CFF90FFFEE3FAF9AE55ABF915" blockId="4.[136,1452,1515,2081]" pageId="4" pageNumber="65">
|
||
<emphasis id="CBE3B91EFF90FFFEE3FAF9AE557FF9E2" box="[189,526,1587,1613]" italics="true" pageId="4" pageNumber="65">Results of statistical analyses:</emphasis>
|
||
Boxplots of the conventional morphometric variables valve length, width and stria density show considerable overlap between the six species of
|
||
<taxonomicName id="3E971E8FFF90FFFEE071F9CA54CDF9DE" box="[822,956,1623,1649]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="genus">
|
||
<emphasis id="CBE3B91EFF90FFFEE071F9CA54CDF9DE" box="[822,956,1623,1649]" italics="true" pageId="4" pageNumber="65">Hippodonta</emphasis>
|
||
</taxonomicName>
|
||
investigated (
|
||
<figureCitation id="61AC7989FF90FFFEE710F9CA53A8F9DE" box="[1111,1241,1623,1649]" captionStart="FIGURES 38–40" captionStartId="8.[136,243,1592,1614]" captionTargetBox="[313,1285,220,1546]" captionTargetId="figure-20@8.[293,1294,190,1568]" captionTargetPageId="8" captionText="FIGURES 38–40. Boxplots showing quantile distributions of valves characters for Hippodonta qinghainensis 38. Valve length. 39. Valve width. 40. Stria density (= number of striae in 10 µm). The 25–75 percent quartiles (excluding outliers) are drawn using a box. The median is shown with a horizontal line inside the box. The whiskers represent the upper and lower “inner fence”, i.e. are drawn from the edge of the box up to the largest/lowest data point less than 1.5 times the box height. Outliers, i.e. values outside the inner fences, are shown as circles if they lie further from the edge of the box than 3 times the box height." figureDoi="http://doi.org/10.5281/zenodo.5146951" httpUri="https://zenodo.org/record/5146951/files/figure.png" pageId="4" pageNumber="65">Figs 38–40</figureCitation>
|
||
). Nevertheless, the classification tree model based on these three variables (
|
||
<figureCitation id="61AC7989FF90FFFEE1BDF9E65435F93A" box="[762,836,1659,1685]" captionStart="FIGURE 41" captionStartId="9.[136,229,1000,1022]" captionTargetBox="[229,1375,205,952]" captionTargetId="figure-17@9.[191,1397,190,976]" captionTargetPageId="9" captionText="FIGURE 41. Classification tree model, fitted using binary recursive partitioning, that shows splits used to separate the six species of Hippodonta on the basis of the three conventional variables: valve length, valve width and stria density." figureDoi="http://doi.org/10.5281/zenodo.5146953" httpUri="https://zenodo.org/record/5146953/files/figure.png" pageId="4" pageNumber="65">Fig 41</figureCitation>
|
||
) performs reasonably well in separating the six species with a misclassification error rate of 10.4% (11/106).
|
||
</paragraph>
|
||
<paragraph id="F928650CFF90FFFEE3FAF95E54D4F81A" blockId="4.[136,1452,1515,2081]" pageId="4" pageNumber="65">
|
||
The CVA based on geometric variables was highly significant (Wilk’s lambda = 0.0007,
|
||
<emphasis id="CBE3B91EFF90FFFEE7DAF95953DAF972" box="[1181,1195,1732,1757]" italics="true" pageId="4" pageNumber="65">p</emphasis>
|
||
<0.0001) and the first two axes, representing 85.6% of the variation, clearly separated the different species of
|
||
<taxonomicName id="3E971E8FFF90FFFEE73EF97A538EF8AE" box="[1145,1279,1767,1793]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="genus">
|
||
<emphasis id="CBE3B91EFF90FFFEE73EF97A538EF8AE" box="[1145,1279,1767,1793]" italics="true" pageId="4" pageNumber="65">Hippodonta</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<figureCitation id="61AC7989FF90FFFEE657F97A5211F8AE" box="[1296,1376,1767,1793]" captionStart="FIGURE 42" captionStartId="10.[136,229,1180,1202]" captionTargetBox="[160,1426,201,1148]" captionTargetId="figure-20@10.[151,1435,190,1156]" captionTargetPageId="10" captionText="FIGURE 42. Ordination plots representing the first two axes of the Canonical Variates Analysis (CVA) performed on the normalized coordinates of the morphological landmarks digitized on LM images of Hippodonta qinghainensis and other species of Hippodonta." figureDoi="http://doi.org/10.5281/zenodo.5146955" httpUri="https://zenodo.org/record/5146955/files/figure.png" pageId="4" pageNumber="65">Fig 42</figureCitation>
|
||
). Pairwise MANOVA comparisons show that the shape of
|
||
<taxonomicName id="3E971E8FFF90FFFEE1A4F89154D2F88A" authorityName="Peng & Rioual & Levkov & Williams & Jin" authorityYear="2014" box="[739,931,1803,1829]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="qinghainensis">
|
||
<emphasis id="CBE3B91EFF90FFFEE1A4F89154D2F88A" box="[739,931,1803,1829]" italics="true" pageId="4" pageNumber="65">H. qinghainensis</emphasis>
|
||
</taxonomicName>
|
||
was clearly different of that of
|
||
<emphasis id="CBE3B91EFF90FFFEE649F8915656F8E6" italics="true" pageId="4" pageNumber="65">
|
||
<taxonomicName id="3E971E8FFF90FFFEE649F89152D6F88A" authorityName="Grunow" authorityYear="1860" box="[1294,1447,1803,1829]" class="Bacillariophyceae" family="Naviculaceae" genus="Navicula" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Ochrophyta" rank="species" species="hungarica">H. hungarica</taxonomicName>
|
||
,
|
||
<taxonomicName id="3E971E8FFF90FFFEE3CFF8AD5656F8E6" authorityName="Kulikovskiy, Metzeltin & Lange-Bertalot" authorityYear="2012" baseAuthorityName="Skabitschewsky" box="[136,295,1839,1865]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="intermedia">H. intermedia</taxonomicName>
|
||
</emphasis>
|
||
and
|
||
<taxonomicName id="3E971E8FFF90FFFEE223F8AD5579F8E6" authorityName="Kulikovskiy, Metzeltin & Lange-Bertalot" authorityYear="2012" baseAuthorityName="Skvortsov" box="[356,520,1839,1865]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="costuloides">
|
||
<emphasis id="CBE3B91EFF90FFFEE223F8AD5579F8E6" box="[356,520,1839,1865]" italics="true" pageId="4" pageNumber="65">H. costuloides</emphasis>
|
||
</taxonomicName>
|
||
as indicated by Bonferroni-corrected Hotelling’s
|
||
<emphasis id="CBE3B91EFF90FFFEE70EF8AD5311F8E6" box="[1097,1120,1840,1865]" italics="true" pageId="4" pageNumber="65">p-</emphasis>
|
||
values <0.001. However, the shape difference between
|
||
<taxonomicName id="3E971E8FFF90FFFEE2F0F8C95508F8C2" authorityName="Peng & Rioual & Levkov & Williams & Jin" authorityYear="2014" box="[439,633,1875,1901]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="qinghainensis">
|
||
<emphasis id="CBE3B91EFF90FFFEE2F0F8C95508F8C2" box="[439,633,1875,1901]" italics="true" pageId="4" pageNumber="65">H. qinghainensis</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3E971E8FFF90FFFEE1FFF8C95421F8C2" box="[696,848,1876,1901]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="conspicua">
|
||
<emphasis id="CBE3B91EFF90FFFEE1FFF8C95421F8C2" box="[696,848,1876,1901]" italics="true" pageId="4" pageNumber="65">H. conspicua</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="3E971E8FFF90FFFEE0C9F8C95362F8C2" authorityName="Lange-Bertalot, Metzeltin & Witkowski" authorityYear="1996" box="[910,1043,1875,1901]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="neglecta">
|
||
<emphasis id="CBE3B91EFF90FFFEE0C9F8C95362F8C2" box="[910,1043,1875,1901]" italics="true" pageId="4" pageNumber="65">H. neglecta</emphasis>
|
||
</taxonomicName>
|
||
was not significant (
|
||
<tableCitation id="B41550B7FF90FFFEE64BF8CE5219F8C2" box="[1292,1384,1875,1901]" captionStart="TABLE 2" captionStartId="6.[136,224,159,183]" captionText="TABLE 2. Confusion matrix, cross-validated (= jackknifed) of the canonical variates analysis performed on geometric morphometric data. Rows indicate the given species and columns indicate the species predicted by the linear discriminant classifier, respectively. Numbers correspond to valves classified to individual species. In the second row, the Bonferronicorrected Hotelling’s p-values, for the pairwise comparisons between H. qinghainensis and the other species of Hippodonta (ns = non-significant)." pageId="4" pageNumber="65">Table 2</tableCitation>
|
||
). The misclassification error rate of the CVA on geometric variables is ~17% (18/106). For
|
||
<taxonomicName id="3E971E8FFF90FFFEE712F8E55265F83E" authorityName="Peng & Rioual & Levkov & Williams & Jin" authorityYear="2014" box="[1109,1300,1911,1937]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="qinghainensis">
|
||
<emphasis id="CBE3B91EFF90FFFEE712F8E55265F83E" box="[1109,1300,1911,1937]" italics="true" pageId="4" pageNumber="65">H. qinghainensis</emphasis>
|
||
</taxonomicName>
|
||
in particular, the error rate is 14% (7/50) as shown in the confusion matrix (
|
||
<tableCitation id="B41550B7FF90FFFEE007F80654E9F81A" box="[832,920,1947,1973]" captionStart="TABLE 2" captionStartId="6.[136,224,159,183]" captionText="TABLE 2. Confusion matrix, cross-validated (= jackknifed) of the canonical variates analysis performed on geometric morphometric data. Rows indicate the given species and columns indicate the species predicted by the linear discriminant classifier, respectively. Numbers correspond to valves classified to individual species. In the second row, the Bonferronicorrected Hotelling’s p-values, for the pairwise comparisons between H. qinghainensis and the other species of Hippodonta (ns = non-significant)." pageId="4" pageNumber="65">Table 2</tableCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B18D3687FF90FFFEE3FAF8225437F876" box="[189,838,1983,2009]" pageId="4" pageNumber="65" type="etymology">
|
||
<paragraph id="F928650CFF90FFFEE3FAF8225437F876" blockId="4.[136,1452,1515,2081]" box="[189,838,1983,2009]" pageId="4" pageNumber="65">
|
||
<emphasis id="CBE3B91EFF90FFFEE3FAF8225615F876" bold="true" box="[189,356,1983,2009]" pageId="4" pageNumber="65">Etymology:—</emphasis>
|
||
The species epithet refers to Lake
|
||
<collectingRegion id="3B53ABEEFF90FFFEE1A3F8225433F876" box="[740,834,1983,2009]" country="China" name="Qinghai" pageId="4" pageNumber="65">Qinghai</collectingRegion>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="B18D3687FF90FFFFE3FAF87E5428FEAE" lastPageId="5" lastPageNumber="66" pageId="4" pageNumber="65" type="distribution">
|
||
<paragraph id="F928650CFF90FFFFE3FAF87E5428FEAE" blockId="4.[136,1452,1515,2081]" lastBlockId="5.[136,1451,158,257]" lastPageId="5" lastPageNumber="66" pageId="4" pageNumber="65">
|
||
<emphasis id="CBE3B91EFF90FFFEE3FAF87E557DF852" bold="true" box="[189,524,2019,2045]" pageId="4" pageNumber="65">Distribution and ecology:—</emphasis>
|
||
Lake
|
||
<collectingRegion id="3B53ABEEFF90FFFEE109F87E55D9F852" box="[590,680,2019,2045]" country="China" name="Qinghai" pageId="4" pageNumber="65">Qinghai</collectingRegion>
|
||
is a brackish and alkaline lake with high pH (
|
||
<tableCitation id="B41550B7FF90FFFEE7FBF87E5263F852" box="[1212,1298,2019,2045]" captionStart="TABLE 1" captionStartId="4.[136,224,1146,1170]" captionText="TABLE 1. Limnological characteristics of surface water samples collected from Lake Qinghai. The given values were averaged from 5 samples collected from various stations across the lake in September 2012." pageId="4" pageNumber="65">Table 1</tableCitation>
|
||
). Apart from the trap samples,
|
||
<taxonomicName id="3E971E8FFF90FFFEE214F7955562F78E" authorityName="Peng & Rioual & Levkov & Williams & Jin" authorityYear="2014" box="[339,531,2055,2081]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="65" phylum="Bacillariophyta" rank="species" species="qinghainensis">
|
||
<emphasis id="CBE3B91EFF90FFFEE214F7955562F78E" box="[339,531,2055,2081]" italics="true" pageId="4" pageNumber="65">H. qinghainensis</emphasis>
|
||
</taxonomicName>
|
||
was found only in one out of five sampling sites and at very low abundance. It was found on filamentous green algae but not in the epilithon and epipsammon samples taken near the shore. In the trap samples,
|
||
<taxonomicName id="3E971E8FFF91FFFFE265FF5E5691FF73" authorityName="Peng & Rioual & Levkov & Williams & Jin" authorityYear="2014" box="[290,480,194,220]" class="Bacillariophyceae" family="Naviculaceae" genus="Hippodonta" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="5" pageNumber="66" phylum="Bacillariophyta" rank="species" species="qinghainensis">
|
||
<emphasis id="CBE3B91EFF91FFFFE265FF5E5691FF73" box="[290,480,194,220]" italics="true" pageId="5" pageNumber="66">H. qinghainensis</emphasis>
|
||
</taxonomicName>
|
||
was found commonly but never in high abundance (maximum abundance = 1.2%). No seasonal trends could be deduced from its pattern of occurrence.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |