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Leaf litter decomposition from native and non-native species in a freshwater forested wetland of Chile Gayana
Gómez-Capponi,Francisco; Correa-Araneda,Francisco; Díaz,Ma Elisa; Olguín,Manuel; Encina-Montoya,Francisco; Figueroa,Ricardo.
ABSTRACT Decomposition of leaf litter is a fundamental process for the functioning of forested wetlands. The rapid increment of forest plantations has involved a greater contribution of leaf litter of exotic origin to these ecosystems. The decomposition rate between leaf litter of native and exotic origin in a forested wetland of the Mediterranean zone of Chile was compared, as well as the contribution of bacteria and macroinvertebrate to this process. It was determined that the decomposition rate of the leaf litter presented significant differences (p < 0.05) between species, being faster in those of non-native origin. This could be due to differences in ecophysiological aspects of the leaves like the presence of chemical compounds such as waxes or...
Tipo: Journal article Palavras-chave: Allochthonous detritus; Bacteria; Lentic ecosystem; Macroinvertebrates.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382017000100001
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Benthic macroinvertebrate communities in sites with native forest presence and absence in north Patagonia Iheringia, Sér. Zool.
Ríos-Escalante,Patricio De los; Esse,Carlos; Santander-Massa,Rodrigo; Saavedra,Pablo; Encina-Montoya,Francisco.
ABSTRACT The benthic fauna in northern Patagonian streams is characterized by presence of water quality indicator species. The aim of the present study was characterized the benthic communities in streams associated to sites with presence of Nothofagus forests and with human intervention without Nothofagus forests using null models in ecology, unified neutral theory of biodiversity (UNTB) and unweighted pair group method with arithmetic mean (UPGMA). The results of species co-occurrence null model revealed that species associations are random, whereas the results of niche overlap null models revealed the presence of niche overlap. The UNTB results revealed low species number. The results of UPGMA revealed that species composition is specific for each site...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Benthic macroinvertebrates; Nothofagus; Communities; Null models; Aquatic insects.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100214
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Determination of homogeneous edaphoclimatic zones for the secondary forests of Nothofagus dombeyi in central-southern Chile Ciencia e Investigación Agraria
Esse,Carlos; Donoso,Pablo J; Gerding,Víctor; Encina-Montoya,Francisco.
C. Esse, PJ. Donoso, V. Gerding, and F. Encina-Montoya. 2013. Determination of homogeneous edaphoclimatic zones for the secondary forests of Nothofagus dombeyi in central-southern Chile. Cien. Inv. Agr. 40(2): 351-360. Nothofagus dombeyi grows in a wide variety of sites in Chile (30-47°S), but there is little knowledge about its productive potential. This lack of information hinders decision-making to better guide the production of goods and services from these forests. This study was conducted in central-southern Chile (39°S-41°S), where this species is prominent, especially in secondary forests. The aim of the study was to determine the homogeneous edaphoclimatic zones for secondary forests of N. dombeyi based on the integration of environmental factors....
Tipo: Journal article Palavras-chave: CART; Biophysical factors; Edaphoclimatic zones; K-means.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200010
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