2007
DOI: 10.1016/j.biocon.2007.04.001
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Identification of ecological indicators for monitoring ecosystem health in the trans-boundary W Regional park: A pilot study

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Cited by 44 publications
(41 citation statements)
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References 38 publications
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“…Grazing intensity was extracted from the paper by scoring four indicators: reported intensity by author, sometimes with corresponding stocking rate, ungrazed or abandoned (0) natural grazing (1), moderate grazing intensity (2), high grazing intensity (3); visual alteration of the vegetation structure, not or slightly altered (0), significantly altered in height or species composition, including exotics (1); rangeland management, no management (0), presence of management such as soil disturbance, clearance of vegetation and application of fertilizers, planting or sowing grass or feed crops (1); and seasonal variation, only seasonal grazing corresponding to natural grazing pattern (0), continuous grazing regardless of the season (1). The four indicators were combined into four grazing intensity classes, using the following rules: If the reported intensity of rangeland management equals 0, and the description is clear on the absence of wildlife grazing, e.g., by fenced enclosures, then the land is regarded as "ungrazed", abandoned rangeland (36,37); if the reported intensity equals 1, then the intensity class is that of man-made grasslands (38,39); if the sum of the reported intensity, visual alteration of the vegetation structure, and seasonal variation equals 1, then grazing is regarded as "natural" (40)(41)(42); if this sum is 2 or 3, then the land is considered moderately used grazing land (43,44); and if the sum is 4 or 5, then the intensity class is intensive (44,45).…”
Section: Methodsmentioning
confidence: 99%
“…Grazing intensity was extracted from the paper by scoring four indicators: reported intensity by author, sometimes with corresponding stocking rate, ungrazed or abandoned (0) natural grazing (1), moderate grazing intensity (2), high grazing intensity (3); visual alteration of the vegetation structure, not or slightly altered (0), significantly altered in height or species composition, including exotics (1); rangeland management, no management (0), presence of management such as soil disturbance, clearance of vegetation and application of fertilizers, planting or sowing grass or feed crops (1); and seasonal variation, only seasonal grazing corresponding to natural grazing pattern (0), continuous grazing regardless of the season (1). The four indicators were combined into four grazing intensity classes, using the following rules: If the reported intensity of rangeland management equals 0, and the description is clear on the absence of wildlife grazing, e.g., by fenced enclosures, then the land is regarded as "ungrazed", abandoned rangeland (36,37); if the reported intensity equals 1, then the intensity class is that of man-made grasslands (38,39); if the sum of the reported intensity, visual alteration of the vegetation structure, and seasonal variation equals 1, then grazing is regarded as "natural" (40)(41)(42); if this sum is 2 or 3, then the land is considered moderately used grazing land (43,44); and if the sum is 4 or 5, then the intensity class is intensive (44,45).…”
Section: Methodsmentioning
confidence: 99%
“…Otro aspecto a resaltar es que las especies de mariposas no mostraron afiliaciones con los grupos de aves ni con su riqueza (Cuadro 5), lo que es interesante dado que se les considera buenos indicadores (Schulze et al, 2004;Bouyer et al, 2007). Sin embargo, debe de tomarse en consideración que la riqueza de aves en cafetal incluye especies que son generalistas y esto no significa que si la riqueza aumenta en este hábitat (Ilustración 2) sea por especies afiliadas en su calidad a hábitats de cobertura boscosa (Ilustración 1).…”
Section: Discussionunclassified
“…Realizamos regresiones lineales desde el programa InfoStat (Di Rienzo et al, 2011) que nos permitieron saber cómo los grupos de gremios en los hábitats se asocian y encontrar cuáles se asocian mejor con la riqueza de especies de las comunidades (Schulze et al, 2004;Harvey et al, 2006). Para el grupo de las mariposas, antes de proceder con los análisis se realizó una estandarización de media ponderada por trampa por tiempo trabajado (Bouyer et al, 2007).El cambio o reemplazo de especies se calculó con el Índice de Jaccard a través de Biodiversity Pro. …”
unclassified
“…Scholars have investigated ecological security regarding the aspects of ecological risk assessments [20,21], ecological health [22,23], ecological models [24,25], and indicator systems [26,27]. However, most extant ecological security studies only provide quantitative descriptions based on literature reviews without implementing quantitative methods or introducing innovative strategies.…”
mentioning
confidence: 99%