<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-3364</journal-id>
<journal-title><![CDATA[Therya]]></journal-title>
<abbrev-journal-title><![CDATA[Therya]]></abbrev-journal-title>
<issn>2007-3364</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Mastozoología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-33642021000100093</article-id>
<article-id pub-id-type="doi">10.12933/therya-21-781</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Neotropical otter diet variation between a lentic and a lotic systems]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Silva]]></surname>
<given-names><![CDATA[Orlando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallo-Reynoso]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bucio-Pacheco]]></surname>
<given-names><![CDATA[Marcos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medrano-López]]></surname>
<given-names><![CDATA[José María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meza-Inostroza]]></surname>
<given-names><![CDATA[Perla Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Grave-Partida]]></surname>
<given-names><![CDATA[Rafael Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Sinaloa Unidad Académica de Biología Departamento de Información y Bibliografía Especializada]]></institution>
<addr-line><![CDATA[Culiacán de Rosales Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigación en Alimentación y Desarrollo A.C. Unidad Guaymas ]]></institution>
<addr-line><![CDATA[Guaymas Sonora]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>93</fpage>
<lpage>103</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33642021000100093&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33642021000100093&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33642021000100093&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Neotropical otters have been scarcely studied at the northern edge of their distribution in Mexico. The species has nocturnal-twilight habits, and their principal food is fish and crustaceans. The aim of this work was to know the foraging habits of Neotropical otters (Lontra longicaudis) in two monitoring sites one lentic and the other one lotic systems of the Río San Lorenzo, Sinaloa México. From February 2009 to January 2010, we surveyed the area during the four seasons by walking 15 km of the river edge of Río San Lorenzo, and 15 km at the El Comedero reservoir. We collected 318 scats, 155 in the reservoir and 163 in the river. Fish were the most abundant prey item in both places, with a frequency of occurrence of 98.1 % in the river and 100 % in the reservoir. The percentage of occurrence varied largely in the other prey items in both places. Seven taxonomic groups compose their foraging habits in the river (relative frequency in parentheses): fish (64.3 %), insects (9.2 %), mollusks (6.8 %), birds (6.0 %), mammals (5.6 %), crustaceans (5.2 %) and fruits (2.8 %). Five taxonomic groups in the reservoir compose it: fish (65.1 %), birds (22.7 %), mammals (9.2 %), fruits (2.5 %) and insects (0.4 %). The most important fish in the diet belonged to the genus Oreochromis, which includes an introduced species. We conclude that the Neotropical otter is an opportunistic carnivore that preys mainly on fish, probably due to their high availability, but they also forage in other taxa that are available at Río San Lorenzo basin.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Las nutrias neotropicales han sido poco estudiadas en el norte de su distribución en México. Esta especie tiene hábitos nocturno-crepusculares, y su principal alimento consiste en peces y crustáceos. El objetivo de este trabajo fue conocer los hábitos alimentarios de la nutria neotropical (Lontra longicaudis) en dos sitios uno léntico y otro lótico del Río San Lorenzo, Sinaloa México. De febrero de 2009 a enero de 2010, se hicieron recorridos estacionales a pie, 15 km en el río San Lorenzo y 15 km en el embalse El Comedero. Se colectaron 318 heces, 155 en el embalse y 163 en el río. En ambos lugares los peces fueron la presa más abundante, con una frecuencia de ocurrencia de 98.1 % en el río y un 100 % en el embalse; para los grupos restantes los porcentajes variaron entre grupos y entre sitios. La alimentación se compuso de siete grupos taxonómicos en el río (entre paréntesis se presenta la frecuencia relativa): peces (64.3 %), insectos (9.2 %), moluscos (6.8 %), aves (6.0 %), mamíferos (5.6 %), crustáceos (5.2 %) y frutos (2.8 %); y de cinco grupos taxonómicos en el embalse: peces (65.1 %), aves (22.7 %), mamíferos (9.2 %), frutos (2.5%) e insectos (0.4%). Entre los peces, las presas más importantes correspondieron al género Oreochromis, entre las cuales existe una especie introducida. La nutria neotropical es un carnívoro oportunista, cuyo alimento principal lo constituyen los peces, probablemente debido a su alta disponibilidad y, en menor medida, se alimenta de otros taxones también disponibles en la cuenca del Río San Lorenzo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Foraging habits]]></kwd>
<kwd lng="en"><![CDATA[Lontra longicaudis]]></kwd>
<kwd lng="en"><![CDATA[Neotropical otters]]></kwd>
<kwd lng="en"><![CDATA[Cosalá]]></kwd>
<kwd lng="en"><![CDATA[Sinaloa]]></kwd>
</kwd-group>
</article-meta>
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</name>
<name>
<surname><![CDATA[Shivik]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
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</person-group>
<article-title xml:lang=""><![CDATA[Does spatial structure persist despite resource and population changes? Effects of experimental manipulation on coyotes]]></article-title>
<source><![CDATA[Mammalogy]]></source>
<year>2008</year>
<volume>89</volume>
<page-range>1094-104</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
