2014
DOI: 10.1111/btp.12111
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Tree Species Distribution along Environmental Gradients in an Area Affected by a Hydroelectric Dam in Southern Amazonia

Abstract: We describe the patterns of composition and abundance of tree species and their relationships to environmental factors in an area affected by the Jirau hydroelectric dam on the Madeira River in the Brazilian state of Rondônia. Trees were sampled in 20 1-ha forest plots distributed among areas affected and unaffected by the hydroelectric reservoir. Predictors of species distribution included in the analyses were soil fertility (sum of bases) and texture, slope, and the vertical distance from the nearest drainag… Show more

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Cited by 29 publications
(40 citation statements)
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“…In this work, it is hypothesized that both environmental heterogeneity and geographic distance determine the floristic and structural patterns of Asteraceae in the Espinhaço Range. Similar studies have been carried out in tropical forests (Chave, ; Moser et al., ; Rezende, Eisenlohr, Vibrans & Oliveira‐Filho, ; Zuquim et al., ), and a few studies have even measured the relative influence of environment and space on the assembly of plant communities of Brazilian non‐forest ecosystems (Menezes, Müller & Overbeck, ), such as rupestrian grasslands. In dystrophic (low nutrient content) soils of rupestrian grasslands in the Espinhaço Range, it is also hypothesized that plant communities will be structured by a hierarchy of environmental factors, as observed in other tropical systems (Pansonato, Costa, Castilho, Carvalho & Zuquim, ).…”
Section: Introductionmentioning
confidence: 64%
“…In this work, it is hypothesized that both environmental heterogeneity and geographic distance determine the floristic and structural patterns of Asteraceae in the Espinhaço Range. Similar studies have been carried out in tropical forests (Chave, ; Moser et al., ; Rezende, Eisenlohr, Vibrans & Oliveira‐Filho, ; Zuquim et al., ), and a few studies have even measured the relative influence of environment and space on the assembly of plant communities of Brazilian non‐forest ecosystems (Menezes, Müller & Overbeck, ), such as rupestrian grasslands. In dystrophic (low nutrient content) soils of rupestrian grasslands in the Espinhaço Range, it is also hypothesized that plant communities will be structured by a hierarchy of environmental factors, as observed in other tropical systems (Pansonato, Costa, Castilho, Carvalho & Zuquim, ).…”
Section: Introductionmentioning
confidence: 64%
“…Nesses estudos realizados pela Embrapa Cenargen foram amostrados 8.504 indivíduos arbóreos e 909 espécies, sendo que grande parte destas foram consideradas raras por apresentarem baixa abundância (Moser et al 2014). Entre estas espécies raras, 13 foram escolhidas para este trabalho, as quais apresentaram identificação e nomenclatura taxonômicas consistentes, com material botânico armazenado e revisado no Herbário da Embrapa Cenargen -Herbário Cen (Tabela1).…”
Section: Methodsunclassified
“…A pré-modelagem foi gerada no programa openModeller (Muñoz et al 2009 A seleção das variáveis também considerou indicações da literatura sobre a influência de fatores do ambiente sobre a distribuição de espécies arbóreas na Amazônia (Phillips et al 2003;ter Steege et al 2006;Ruokolainen et al 2007;Coronado et al 2009;Zuquim et al 2012). Nestes estudos, a topografia e o solo, com destaque para as características de textura e para o teor de fertilidade, são os principais fatores determinísticos na composição e diferenciação florística na Amazônia, quando consideradas as escalas regionais e meso-escalas espaciais, como a área de influência da UHE Jirau (Moser et al 2014).…”
Section: Methodsunclassified
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