<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792024000100142</article-id>
<article-id pub-id-type="doi">10.28940/terra.v42i.1966</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Riesgo de Erosión por Intensidad y Frecuencia de Pastoreo en Agostadero Bajo Cuatro Condiciones de Manejo en el Altiplano Mexicano]]></article-title>
<article-title xml:lang="en"><![CDATA[Erosion Risk by Grazing Intensity and Frequency in Rangelands Under Four Management Conditions in the Mexican Altiplano]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado-Padierna]]></surname>
<given-names><![CDATA[Ariadna Quetzal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Negrete-Sánchez]]></surname>
<given-names><![CDATA[Luis Octavio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rendón-Huerta]]></surname>
<given-names><![CDATA[Juan Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-López]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lee-Rangel]]></surname>
<given-names><![CDATA[Héctor Aarón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez Fuentes]]></surname>
<given-names><![CDATA[Gregorio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Rivera]]></surname>
<given-names><![CDATA[Rigoberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Agronomía y Veterinaria ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Instituto de Investigación de Zonas Desérticas ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Coordinación Académica Región Altiplano Oeste ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación en Biotecnología Aplicada ]]></institution>
<addr-line><![CDATA[Tlaxcala Tlaxcala]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>42</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792024000100142&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792024000100142&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792024000100142&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Los agostaderos son los sitios de alimentación del ganado mediante vegetación espontánea. En el altiplano mexicano, 95% de los ejidos y 80% de los ranchos privados registran sobrepastoreo severo y generalizado en sus agostaderos. Con el intento de revertirlo, el objetivo del presente estudio es comparar como impactan la intensidad y frecuencia del pastoreo de diversas especies animales a la condición de agostadero. Por otro lado, es inherente el grado de riesgo a erosión derivado del sobrepastoreo en cuatro unidades de producción ganadera colindantes entre sí, en un mismo sitio de agostadero compartido, pero con distinto aprovechamiento individual. Se compararon un ejido, un rancho privado pastoreado por ovejas durante más de 60 años, y dos porciones de otro rancho privado, una excluida al pastoreo por más de 10 años y otra aprovechada mediante bovinos para producción de carne. De cada unidad de producción se evaluaron sus atributos estructurales y funcionales de la vegetación y cobertura actual del suelo mediante cuatro transectos con el método de cuadrantes centrados en un punto. Se analizaron los resultados del diámetro basal de las plantas perennes presentes según su calidad forrajera, y las porciones de suelo desnudo, cubierto con vegetación, mantillo, heces y piedras con un diseño experimental completamente aleatorio. Además, con análisis multivariable se ordenó y clasificó una matriz de 16 variables de vegetación y suelo evaluadas × 16 transectos estudiados, para determinar la condición de agostadero y el inherente grado de riesgo a erosión. La secciones excluida y destinada al pastoreo con bovinos en el rancho privado registraron la mejor condición de agostadero y el menor riesgo a erosión. La composición botánica de origen idéntica en las cuatro unidades de producción es ya distinta, y diversas plantas forrajeras ya no existen ni en el ejido, ni en el rancho borreguero por su baja tolerancia al pastoreo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: Rangelands are feeding sites for livestock through spontaneous vegetation. In the Mexican highlands, 95% of the ejidos (common land) and 80% of private ranches have recorded severe and widespread overgrazing of their grasslands. Thus, the objective of the present study is to try to reverse it by comparing how grazing intensity and frequency of various animal species impact the rangeland conditions and the inherent degree of risk of erosion in four livestock production units adjacent to each other in the same shared rangeland site but with different individual use. An ejido, a private ranch grazed by sheep for more than 60 years, and two portions of another private ranch were compared, one excluded from grazing for more than 10 years and the other one used by cattle for beef production. For each production unit, its structural and functional vegetation attributes and current soil cover were evaluated through four transects with the quadrat method centered on a point. With a completely randomized experimental design, the basal diameter results of the present perennial plants were analyzed according to their forage quality, and the bare soil portions were covered with vegetation, mulch, feces and stones. Furthermore, a multivariate analysis ordered and classified a matrix of 16 vegetation and soil variables evaluated ×16 transects studied to determine the rangeland condition and inherent erosion risk degree. The sections were excluded and destined for grazing with cattle on the private ranch recorded the best range condition and the lowest risk of erosion. The botanical composition of origin identical in the four production units is already different, and various forage plants no longer exist either in the ejido or in the sheep ranch due to their low tolerance to grazing.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[análisis multivariable]]></kwd>
<kwd lng="es"><![CDATA[desertificación]]></kwd>
<kwd lng="es"><![CDATA[intensidad de defoliación]]></kwd>
<kwd lng="es"><![CDATA[periodicidad de la defoliación]]></kwd>
<kwd lng="en"><![CDATA[multivariate analysis]]></kwd>
<kwd lng="en"><![CDATA[desertification]]></kwd>
<kwd lng="en"><![CDATA[intensity of defoliation]]></kwd>
<kwd lng="en"><![CDATA[defoliation periodicity]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abate]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Ebro]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nigatu]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de la vegetación leñosa en los pastizales del sudeste de Etiopía]]></article-title>
<source><![CDATA[Revista Internacional de Investigación sobre Ciencias Agrícolas y Ciencias del Suelo]]></source>
<year>2012</year>
<volume>2</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>113-26</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguirre-Rivera]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Negrete-Sánchez]]></surname>
<given-names><![CDATA[L. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Castro-Rivera]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efectos de 20 años de la parcelación sobre la condición del agostadero comunal de un ejido mexicano]]></article-title>
<source><![CDATA[Revista de la Facultad de Ciencias Agrarias UNCuyo]]></source>
<year>2020</year>
<volume>52</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>189-203</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aguirre-Rivera]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Negrete-Sánchez]]></surname>
<given-names><![CDATA[L. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Castro-Rivera]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Traditional and update evaluation of the rangeland site and condition in the semiarid scrub of high plateau]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2023</year>
<volume>57</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>589-604</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aldrete]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre]]></surname>
<given-names><![CDATA[R. J. R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diferenciación de sitios y condición de agostaderos del noreste del estado de Zacatecas]]></article-title>
<source><![CDATA[Revista Chapingo]]></source>
<year>1982</year>
<volume>35</volume>
<numero>36</numero>
<issue>36</issue>
<page-range>53-8</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bolaños]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre]]></surname>
<given-names><![CDATA[R. J. R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación preliminar de los agostaderos forestales del occidente del Estado de México]]></article-title>
<source><![CDATA[Acta Científica Potosina]]></source>
<year>2000</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>74-97</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Briske]]></surname>
<given-names><![CDATA[D. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Fuhlendorf]]></surname>
<given-names><![CDATA[S. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Smeins]]></surname>
<given-names><![CDATA[F. E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[State and transition models, thresholds, and rangeland healt: a synthesis of ecological concepts and perspectives]]></article-title>
<source><![CDATA[Rangeland Ecology and Management]]></source>
<year>2005</year>
<volume>58</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Canfield]]></surname>
<given-names><![CDATA[R. H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Appplication of the line interception method in sampling range vegetation]]></article-title>
<source><![CDATA[Journal of Forestry]]></source>
<year>1941</year>
<volume>39</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>388-94</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<collab>COTECOCA (Comisión Técnico Consultiva para la Determinación de los Coeficientes de Agostadero)</collab>
<source><![CDATA[Coeficientes de Agostadero de la República Mexicana. Estado de San Luis Potosí]]></source>
<year>1982</year>
<publisher-loc><![CDATA[Distrito Federal, México ]]></publisher-loc>
<publisher-name><![CDATA[Secretaría de Agricultura y Ganadería]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cottam]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Curtis]]></surname>
<given-names><![CDATA[J. T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use of distance measures in phytosociological sampling]]></article-title>
<source><![CDATA[Ecology]]></source>
<year>1956</year>
<volume>37</volume>
<page-range>451-60</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dyksterhuis]]></surname>
<given-names><![CDATA[E. J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Condition and management of rangeland based on quiantitative 91 ecology]]></article-title>
<source><![CDATA[Journal of Range Management]]></source>
<year>1949</year>
<volume>2</volume>
<page-range>104-15</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<collab>ESRI</collab>
<source><![CDATA[ArcGis User´s Guide. Released 10.1]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Redlands, CA, USA ]]></publisher-loc>
<publisher-name><![CDATA[Environmental Systems Research Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Yeaton]]></surname>
<given-names><![CDATA[H. R. I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La importancia de la competencia en la organización de comunidades vegetales en el altiplano mexicano]]></article-title>
<source><![CDATA[Interciencia]]></source>
<year>2000</year>
<volume>25</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>365-71</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hacker]]></surname>
<given-names><![CDATA[R. B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Algunos conceptos sobre la gestión de los pastizales]]></article-title>
<source><![CDATA[Journal of the Department of Agriculture, Western Australia]]></source>
<year>1974</year>
<volume>15</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>76-80</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Heady]]></surname>
<given-names><![CDATA[H. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Child]]></surname>
<given-names><![CDATA[D. R]]></given-names>
</name>
</person-group>
<source><![CDATA[Rangeland Ecology and Management]]></source>
<year>1994</year>
<publisher-loc><![CDATA[New York, USA ]]></publisher-loc>
<publisher-name><![CDATA[Westview Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holechek]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Pieper]]></surname>
<given-names><![CDATA[R. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Herbel]]></surname>
<given-names><![CDATA[C. H]]></given-names>
</name>
</person-group>
<source><![CDATA[Range management, principles and practices]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Upper Saddle River, New Jersey, USA ]]></publisher-loc>
<publisher-name><![CDATA[Prentice Hall]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Humphrey]]></surname>
<given-names><![CDATA[R. R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Field comments on the range condition method of forage survey]]></article-title>
<source><![CDATA[Journal of Range Management]]></source>
<year>1949</year>
<volume>2</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<collab>INEGI (Instituto Nacional de Estadística y Geografía)</collab>
<source><![CDATA[Cartas físicas temáticas. Temas: geológica, hidrología superficial, hidrología subterránea, edafológica, climatológica y vegetación y uso actual]]></source>
<year>2017</year>
<publisher-loc><![CDATA[San Luis Potosí, México ]]></publisher-loc>
<publisher-name><![CDATA[INEGI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lara-Juárez]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo-Lara]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Tristán-Patiño]]></surname>
<given-names><![CDATA[F. D. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Rendón-Huerta]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre-Rivera]]></surname>
<given-names><![CDATA[J. R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efectos del sitio y la condición de agostadero en la densidad de hormigueros de escamoles (Liometopum apiculatum Mayr)]]></article-title>
<source><![CDATA[Revista Chapingo Serie Ciencias Forestales y Del Ambiente]]></source>
<year>2016</year>
<volume>22</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>285-302</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCune]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Mefford]]></surname>
<given-names><![CDATA[M. J]]></given-names>
</name>
</person-group>
<source><![CDATA[PC-ORD Multivariate analysis of ecological data, User´s Guide Version 7]]></source>
<year>2018</year>
<publisher-loc><![CDATA[Gleneden Beach, Oregon, USA ]]></publisher-loc>
<publisher-name><![CDATA[MiM Software]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Negrete-Sánchez]]></surname>
<given-names><![CDATA[L. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre-Rivera]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Pinos-Rodríguez]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-Hernández]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Beneficio de la parcelación de los agostaderos comunales del ejido&#8221; El Castañón&#8221;, municipio Catorce, San Luis Potosí]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2016</year>
<volume>50</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>511-32</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parker]]></surname>
<given-names><![CDATA[K. W]]></given-names>
</name>
</person-group>
<source><![CDATA[Un método para medir la tendencia de la condición en agostaderos de los bosques nacionales]]></source>
<year>1951</year>
<publisher-loc><![CDATA[Washington, DC, USA ]]></publisher-loc>
<publisher-name><![CDATA[USDA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="">
<collab>PHINA (Padrón e Historial de Núcleos Agrarios)</collab>
<source><![CDATA[Historial de Núcleos Agrarios]]></source>
<year>2024</year>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reid]]></surname>
<given-names><![CDATA[R. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández-Giménez]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Galvin]]></surname>
<given-names><![CDATA[K. A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dynamics and resilience of rangelands and pastoral peoples around the globe]]></article-title>
<source><![CDATA[Annual Review of Environment and Resources]]></source>
<year>2014</year>
<volume>39</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>217-42</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schlesinger]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reflections on a Century of Rangeland]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Barrow]]></surname>
<given-names><![CDATA[J. R]]></given-names>
</name>
<name>
<surname><![CDATA[McArthur]]></surname>
<given-names><![CDATA[E. D]]></given-names>
</name>
<name>
<surname><![CDATA[Sosebee]]></surname>
<given-names><![CDATA[R. E]]></given-names>
</name>
<name>
<surname><![CDATA[Tausch]]></surname>
<given-names><![CDATA[R. J]]></given-names>
</name>
</person-group>
<source><![CDATA[Proceedings, Shrubland Ecosystem Dynamics in a Changing Environment]]></source>
<year>1996</year>
<page-range>10-6</page-range><publisher-loc><![CDATA[Las Cruces, NM, USA ]]></publisher-loc>
<publisher-name><![CDATA[USDA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[E. L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of the Range Condition Concept]]></article-title>
<source><![CDATA[Rangelands]]></source>
<year>2003</year>
<volume>25</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>3-6</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<collab>SAS Institute</collab>
<source><![CDATA[SAS/STAT User guide. Release 8.0]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Cary, NC, USA ]]></publisher-loc>
<publisher-name><![CDATA[SAS Institute Inc]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres-Acosta]]></surname>
<given-names><![CDATA[J. F. D. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alonso-Díaz]]></surname>
<given-names><![CDATA[M. Á.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoste]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandoval-Castro]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilar-Caballero]]></surname>
<given-names><![CDATA[A. J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efectos negativos y positivos del consumo de forrajes ricos en taninos en la producción de caprinos]]></article-title>
<source><![CDATA[Tropical and Subtropical Agroecosystems]]></source>
<year>2008</year>
<volume>9</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>83-90</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tukey]]></surname>
<given-names><![CDATA[J. W]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparing individual means in the analysis of variance]]></article-title>
<source><![CDATA[Biometrics]]></source>
<year>1949</year>
<volume>5</volume>
<page-range>99-114</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="book">
<collab>USDA (United States Department of Agriculture)</collab>
<source><![CDATA[Interagency Ecological Site]]></source>
<year>2013</year>
<publisher-loc><![CDATA[Washington, D.C., USA ]]></publisher-loc>
<publisher-name><![CDATA[USDA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vallentine]]></surname>
<given-names><![CDATA[J. P]]></given-names>
</name>
</person-group>
<source><![CDATA[Grazing management]]></source>
<year>2000</year>
<edition>2nd</edition>
<publisher-loc><![CDATA[San diego, CA, USA ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
