112 lines
9.5 KiB
XML
112 lines
9.5 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/BDJ.3.e4297" ID-PMC="PMC4304259" ID-Pensoft-Pub="1314-2828-3-4297" ID-PubMed="25632260" ModsDocAuthor="" ModsDocDate="2015" ModsDocID="1314-2828-3-e4297" ModsDocOrigin="Biodiversity Data Journal 3" ModsDocTitle="On the morphology, biometry and biogeography of Lamtopyxiscallistoma (Amoebozoa: Arcellinida)" checkinTime="1451253206484" checkinUser="pensoft" docAuthor="Todorov, Milcho" docDate="2015" docId="61003724176C6F2D8DC8451AECE90880" docLanguage="en" docName="BiodivDatJour 3: e4297" docOrigin="Biodiversity Data Journal 3" docSource="http://dx.doi.org/10.3897/BDJ.3.e4297" docTitle="Lamtopyxis callistoma Bonnet 1974" docType="treatment" docVersion="2" lastPageNumber="4297" masterDocId="FFE54C10BD29FFAFFFC7FFE3BF246902" masterDocTitle="On the morphology, biometry and biogeography of Lamtopyxiscallistoma (Amoebozoa: Arcellinida)" masterLastPageNumber="4297" masterPageNumber="4297" pageNumber="4297" updateTime="1668122865378" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>On the morphology, biometry and biogeography of Lamtopyxiscallistoma (Amoebozoa: Arcellinida)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Todorov, Milcho</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Biodiversity Data Journal</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2015</mods:date>
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<mods:detail type="volume">
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<mods:number>3</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>4297</mods:start>
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<mods:end>4297</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/BDJ.3.e4297</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/BDJ.3.e4297</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2828-3-4297</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:61003724176C6F2D8DC8451AECE90880" httpUri="http://treatment.plazi.org/id/61003724176C6F2D8DC8451AECE90880" lastPageNumber="4297" pageId="0" pageNumber="4297">
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<subSubSection pageId="0" pageNumber="4297" type="nomenclature">
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<paragraph pageId="0" pageNumber="4297">
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<taxonomicName authority="Bonnet, 1974" authorityName="Bonnet" authorityYear="1974" class="Lobosa" family="Lamtopyxidae" genus="Lamtopyxis" higherTaxonomySource="CoL" kingdom="Protozoa" lsidName="Lamtopyxis callistoma" order="Arcellinida" pageId="0" pageNumber="4297" phylum="Amoebozoa" rank="species" species="callistoma">Lamtopyxis callistoma Bonnet, 1974</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="4297" type="materials_examined">
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<paragraph pageId="0" pageNumber="4297">Materials</paragraph>
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<paragraph pageId="0" pageNumber="4297">
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<materialsCitation collectionCode="IBER, Testate amoebae" collectorName="Milcho T. Todorov" country="Madagascar" latitude="-18.95" location="Madagascar" longLatPrecision="1273" longitude="48.45" pageId="0" pageNumber="4297" specimenCount="75" typeStatus="Other material">
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Type status:
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<typeStatus pageId="0" pageNumber="4297">Other material</typeStatus>
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. Occurrence: recordedBy:
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<collectorName pageId="0" pageNumber="4297">Milcho T. Todorov</collectorName>
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; individualCount:
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<specimenCount pageId="0" pageNumber="4297">75</specimenCount>
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; Location: country:
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<collectingCountry pageId="0" pageNumber="4297">Madagascar</collectingCountry>
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; stateProvince: Maromizaha Protected Area; verbatimLocality: Central Madagascar, east of the capital Antananarivo and south of the village Anevoka, on the eastern slopes of the Central Highlands; verbatimElevation: 950 m; verbatimLatitude:
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<geoCoordinate direction="south" orientation="latitude" precision="925" value="-18.95">18°57'S</geoCoordinate>
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; verbatimLongitude:
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<geoCoordinate direction="east" orientation="longitude" precision="925" value="48.45">48°27'E</geoCoordinate>
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; Record Level: collectionID: col:ta;prep.24,25,26/2014; institutionCode:
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<collectionCode pageId="0" pageNumber="4297">IBER</collectionCode>
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; collectionCode:
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<collectionCode pageId="0" pageNumber="4297">Testate amoebae</collectionCode>
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</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="4297" type="description">
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<paragraph pageId="0" pageNumber="4297">Description</paragraph>
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<paragraph pageId="0" pageNumber="4297">
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The shell is yellowish or light brown, circular in oral and dorsal views, and hemispherical in lateral view (Figs 1, 2). The apertural surface is smooth, composed of small to medium flattish mineral particles, bound together by a thick layer of porous and fibrous organic cement, which extends over the teeth (Figs 2a, b, c, 3a). The dorsal surface is rough and composed of bigger and angular pieces of quartz, bound together by considerably less amount of organic cement (Figs 2d, e, f, 3c). The shell wall has a thickness of about 5-6
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<normalizedToken originalValue="µm">µm</normalizedToken>
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and is composed of three layers: an outer layer of organic cement (300-500 nm) with a smooth outer lining, an intermediate layer of porous and fibrous organic cement (2-4
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) with incorporated mineral particles and an inner layer of organic cement (1-1.5
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<normalizedToken originalValue="µm">µm</normalizedToken>
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) with a rough inner lining (Fig. 3e, f). Small single pores with a varying diameter of about 50-350 nm are often seen in the cement, in both on the apertural and dorsal shell surface (Fig. 3b). The aperture is central, deeply invaginated (about 40% of the shell depth), with pronounced apertural tube and two openings - external and internal (Figs 1c, d, 3d, e). The external opening is more often four-, less often three-lobed, bordered by 3-4 large and smooth teeth (Figs 1a, b, 2a, b, c). The internal opening is at the bottom of the apertural tube. It varies in shape from oval to almost circular and is surrounded by a small collar (Figs 1a, 3a). The apertural tube is reinforced at its base by a characteristic dark-brown coloured organic frame (visible by LM, but not by SEM) (Fig. 1a). The apertural tube is rough, composed of a mixture of medium to large mineral particles, bound together by a small amount of organic cement (Fig. 3a, d, e).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="4297" type="biometry">
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<paragraph pageId="0" pageNumber="4297">Biometry</paragraph>
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<paragraph pageId="0" pageNumber="4297">
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The basic morphometric characters of 75 individuals from the Maromizaha Protected Area in Madagascar were measured and the results are given in Table 1. The analysis of the variation coefficients shows that the studied population of
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<taxonomicName lsidName="L. callistoma" pageId="0" pageNumber="4297" rank="species" species="callistoma">L. callistoma</taxonomicName>
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is comparatively homogeneous and almost all measured characters are weakly to moderately variable (CV less than 10%). The only exception is the length of the teeth, which varies in a wider range (CV = 12.12%). The parameters with minimal variability are depth of apertural tube (3.37%), depth of shell (3.59%), diameter of shell (4.15%) and diameter at the base of apertural tube (5.32%). The large and small axes of the internal opening are moderate variables (9.20% and 9.13%, respectively). These conclusions are also confirmed by the box plots, showing the variability of the
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<normalizedToken originalValue="shell’s">shell's</normalizedToken>
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characters in
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<taxonomicName lsidName="L. callistoma" pageId="0" pageNumber="4297" rank="species" species="callistoma">L. callistoma</taxonomicName>
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(Fig. 4).
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</paragraph>
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<paragraph pageId="0" pageNumber="4297">
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Analysis of the size frequency distribution of the main characters indicates that
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<taxonomicName lsidName="L. callistoma" pageId="0" pageNumber="4297" rank="species" species="callistoma">L. callistoma</taxonomicName>
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is size-monomorphic species. The presence of comparatively well-expressed main-size class for the basic characters and the lack of the subsidiary peaks (bell-shaped curves) indicate a normal distribution (Fig. 5a, b, c). For example, 93% of all the individuals have a shell diameter of 166-190
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<normalizedToken originalValue="µm">µm</normalizedToken>
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and only 7% are smaller than 165
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<normalizedToken originalValue="µm">µm</normalizedToken>
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(Fig. 5a). Almost all measured individuals range in close limits, regarding the
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<normalizedToken originalValue="shell’s">shell's</normalizedToken>
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depth and diameter at the base of apertural tube (Fig. 5b, c). 98% of them have a diameter at the base of apertural tube between 54-64
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, and in more than three quarters of the individuals (82%), shell depth varies between 122-134
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<normalizedToken originalValue="µm">µm</normalizedToken>
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. The average values (Mean
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<normalizedToken originalValue="±">+/-</normalizedToken>
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SD) for these three shell characters are respectively 175.8
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<normalizedToken originalValue="±">+/-</normalizedToken>
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7.30 (n=75), 128.1
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<normalizedToken originalValue="±">+/-</normalizedToken>
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4.60 (n=43) and 59.8
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<normalizedToken originalValue="±">+/-</normalizedToken>
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3.19 (n=75). These arithmetical means correlate with the main-size classes of the characters, and testify for monomorphism of the species.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |