<?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>0122-9761</journal-id>
<journal-title><![CDATA[Boletín de Investigaciones Marinas y Costeras - INVEMAR]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Invest. Mar. Cost.]]></abbrev-journal-title>
<issn>0122-9761</issn>
<publisher>
<publisher-name><![CDATA[INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS "JOSE BENITO VIVES DE ANDRÉIS" (INVEMAR)    INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS -JOSE BENITO VIVES DE ANDRÉIS- (INVEMAR)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-97612022000200049</article-id>
<article-id pub-id-type="doi">10.25268/bimc.invemar.2022.51.2.1161</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Mapping of mudflats with UAV images in La Bocana de Iscuandé, Colombian Pacific coast]]></article-title>
<article-title xml:lang="es"><![CDATA[Mapeo de planos lodosos con imágenes UAV en La Bocana de Iscuandé, costa Pacífica colombiana]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mina-Cartagena]]></surname>
<given-names><![CDATA[Camilo F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[José E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Richard Johnston]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Valle Geography Department ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Valle Geography Department ]]></institution>
<addr-line><![CDATA[Cali Colombia]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Asociación para el Estudio y Conservación de las Aves Acuáticas en Colombia-Calidris  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>51</volume>
<numero>2</numero>
<fpage>49</fpage>
<lpage>62</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-97612022000200049&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-97612022000200049&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-97612022000200049&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Conservation planning for marine-coastal environments requires updated and detailed maps; the aim of this work is to generate detailed maps for two mudflats in the Iscuandé River Delta (Bocana de Iscuandé) in the Colombian Pacific Coast (Department of Nariño). These are important areas for fauna, especially migratory shorebirds. To address this problem, this study investigated the use of unmanned aerial vehicles (UAVs) as an alternative for collecting detailed mapping information in areas of difficult access using photogrammetric methods and a geographic information system (GIS). UAV images were used to generate maps with a high level of detail at a scale of 1:10,000 that include detailed information about environments such as mudflats and mangroves which had not been mapped before. UAVs are a practical tool for mapping places where weather and access conditions hinder the use of satellite images or conventional aerial photography. They are also useful for mapping areas with high temporal and spatial variability, such as mudflats, where other platforms may not reveal their short-term dynamics. Our results show that this technique has a high potential for mapping such environments, and reveal that the Iscuandé mudflats are maintained by a relative equilibrium between the ebb and flow of waves and tides, and are also influenced by the local climate. This type of application provides critical data for conservation and management strategies of areas with great ecological importance.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La planificación de la conservación de los ambientes marino-costeros requiere de mapas actualizados y detallados, por lo que el objetivo de este trabajo es generar la cartografía detallada de dos planos lodosos en el delta del río Iscuandé (Bocana de Iscuandé) en la costa Pacífica colombiana (departamento de Nariño). Estas son áreas importantes para la fauna, especialmente para las aves playeras migratorias. Para abordar este problema, este estudio investigó el uso de Vehículos Aéreos no Tripulados (UAV, por sus siglas en inglés) como una alternativa para recopilar información cartográfica detallada en áreas de difícil acceso utilizando métodos fotogramétricos y Sistemas de Información Geográfica. (SIG). Las imágenes de los vehículos aéreos no tripulados se utilizaron para generar mapas con un alto nivel de detalle a escala 1:10.000 que incluyen información detallada sobre entornos como los planos intermareales y los manglares que no habían sido cartografiados anteriormente. Los Vehículos Aéreos no Tripulados son una herramienta práctica para cartografiar lugares en los que las condiciones meteorológicas y de acceso dificultan el uso de imágenes por satélite o de fotografía aérea convencional. En concreto, la cartografía de zonas con alta dinámica temporal y espacial, como los planos lodosos, no es posible con otras plataformas debido a su naturaleza altamente cambiante en cortos periodos de tiempo. El principal resultado muestra que es posible cartografiar los planos intermareales mostrando que se mantienen en un relativo equilibrio entre el flujo y reflujo de las olas y las mareas temporalmente e influenciadas por el clima local. Este tipo de aplicación proporciona datos críticos para las estrategias de conservación y gestión de áreas de gran importancia ecológica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[UAV]]></kwd>
<kwd lng="en"><![CDATA[geographic information system]]></kwd>
<kwd lng="en"><![CDATA[tidal mudflats]]></kwd>
<kwd lng="en"><![CDATA[shorebirds]]></kwd>
<kwd lng="en"><![CDATA[Colombian Pacific]]></kwd>
<kwd lng="es"><![CDATA[UAV]]></kwd>
<kwd lng="es"><![CDATA[sistema de información geográfica]]></kwd>
<kwd lng="es"><![CDATA[planos lodosos]]></kwd>
<kwd lng="es"><![CDATA[aves playeras]]></kwd>
<kwd lng="es"><![CDATA[Pacífico colombiano]]></kwd>
</kwd-group>
</article-meta>
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