Heterogeneidade ambiental e estrutura da vegetação arbustivo-arbórea em três áreas de Cerrado sentido restrito no Sudoeste goiano

Silva, Gabriel Eliseu; Guilherme, Frederico Augusto Guimarães; Carneiro, Steffan Eduardo Silva; Pinheiro, Marcelo Henrique Ongaro; Ferreira, Wendy Carniello

doi:10.5902/1980509823788

Cited by 12 publications

(10 citation statements)

References 20 publications

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“…The relevance of Fabaceae has been common as the richest in surveys carried out in SSF (Silva et al, 2004;Imaña-Encinas et al 2008;Prado Júnior et al, 2010;Dan et al, 2010;Lisboa et al, 2019). This expressiveness also occurs in other forest and savanna formations in Cerrado, in Goiás state, as already noted in cerrado sensu stricto (Silva et al, 2019), rocky outcrops in Cerrado (Leles & Diniz, 2017), woody savanna or 'cerradão' (Guilherme et al, 2020), riparian forest (Ferreira et al, 2020) and deciduous dry forest (Andriani et al, 2020). This predominance of the family in studies of tree structures in natural ecosystems is attributed to the efficiency in nitrogen fixation (Françoso et al, 2016), and yet many species have mutualistic relationships, such as mycorrhizae (Abreu et al, 2018).…”

Section: Discussionmentioning

confidence: 81%

“…Cerrado shows a wide environmental heterogeneity, due to several physical aspects, forming a complex physiognomic diversification (Silva et al, 2019), which makes it the most biodiverse savanna on the planet with strategic biogeographic regions that deserve conservation priorities (Françoso et al, 2019). It has floristic links with the Amazon and Atlantic Forests, which exhibit influence on their diversity, and distinct patterns of species distribution (Méio et al, 2003, Falcão & Monteiro, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Fitossociologia em fragmento de floresta estacional semidecidual em reserva legal no sudoeste do estado de Goiás

Souza

Guilherme

Borges

et al. 2021

RSD

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In Goiás, seasonal forests structure studies are scarce, especially in fragments located in legal reserves, subject to human disturbances. Therefore, the study aimed to perform the phytosociology of a fragment of a rural property, in a seasonal semideciduous forest. We evaluated structure, richness, diversity, dispersion mechanisms, ecological groups, and species distribution patterns found in the study and floristic links between Cerrado, Amazon and Atlantic Forest. In a one-hectare sample plot, all live trees with a diameter at breast height ≥ 10 cm were measured. The values of density and basal area were 561 ind.ha-1 and 26.2 m².ha-1, respectively. We recorded 37 species with diversity indices (H’) of 2.36 and evenness (J’) of 0.65. Toulicia reticulata, Chaetocarpus echinocarpus, Bocageopsis mattogrossensis and Nectandra cuspidata were species with the highest importance value, corresponding to 69% and 65% of all density and basal area, respectively. Fabaceae obtained the highest floristic richness, with six species, although it was little represented in terms of abundance. Our results suggest that the fragment is a mature forest in good conservation status. This is reinforced by the high size of trees, in addition to the predominance of zoochoric (83.8%) and secondary (92.1%) individuals in the survey.

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Section: Discussionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Fitossociologia em fragmento de floresta estacional semidecidual em reserva legal no sudoeste do estado de Goiás

Souza

Guilherme

Borges

et al. 2021

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“…Savanna is a vegetation type characterized by the occurrence of grasses, shrubs, and trees, where the density of woody vegetation varies and its canopy is discontinuous (Ferreira et al 2015, Silva et al 2019, Azevedo et al 2020). In the Neotropics, there are three main domains of the savanna biome: the Llanos and the Guianan domains in northern South America, and the Cerrado domain in central South America (da Silva and Bates 2002, Furley 2006, Azevedo et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of fire regime on the bird community in an Amazonian savanna

Coelho

Ritter

Lima

et al. 2022

Preprint

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Savannas are ecosystems maintained by fires, characterized by a fire-adapted biota, and savanna patches occur in Amazonia in patches surrounded by tropical forest. Different fire regimes can generate structurally diverse vegetation, and savanna birds are known to be closely related to vegetation structure. However, long-term approaches and interaction of fire with other environmental factors need to be explored for the better understanding of the effects of habitat fire on birds. In an Amazonian landscape composed by savanna and forest, we investigate the effects of different fire regimes in a 12-ha area in three periods through 23 years. We also examined the effects of frequency and extent of fires, tree cover, and distance to forest on bird composition in twelve 3.7- ha savannas plots. Birds were surveyed with mist-nets and species were classified as to their habitat use by comparison of registers in forest and savanna plots through visual/acoustical surveys. After 13 years of fire suppression, many forest species colonized the area and some savanna species were lost. Fire frequency and tree coverage affect avifauna communities. The avifauna was sensitive to the occurrence of fires, independent of fire extent. After one fire event in a plot that had been protected from fire for 12 years, some savanna species returned. These results highlight the effects of the fire regime on birds species composition and indicate that many savanna bird species depend on the occurrence of regular fires.

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“…Several studies, point out that open Cerrado physiognomies, when protected from fire, shows stages of succession, advancing from savanna to forest physiognomies (ABREU et al, 2017;SILVA et al, 2019). In this sense, we work with the following hypotheses: 1. due to the secondary succession stage, the urban forest show differences in composition and floristic similarity, structure and ecological aspects between tree and regenerating strata; 2. after 40 years of conservation, we hope to find a higher proportion of species and individuals in the initial succession stage than normally registered in other studies and, still, a higher proportion of species typical of forest environments.…”

Section: Introductionmentioning

confidence: 99%

Floristic and structure of different strata in an urban Semideciduous Forest in Jataí, Goiás state, Brazil

et al. 2021

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Estudos comparativos entre diferentes estratos de florestas em sucessão ecológica são importantes para entender a dinâmica florestal. O estudo avaliou aspectos florísticos, fitossociológicos e ecológicos entre os estratos adulto e regenerante de um fragmento urbano de floresta estacional semidecidual, em Jataí, Goiás. Nas últimas décadas, a vegetação que era tipicamente savânica tem se tornado uma floresta. As árvores adultas (diâmetro a altura do peito, DAP ≥ 5 cm) foram amostradas em 12 parcelas permanentes de 200m². Em cada uma delas, sub-parcelas de 25m² foram amostradas para o estrato regenerante, que compreendeu indivíduos com DAP 5cm e altura ≥ 1m. Regenerantes tiveram maior riqueza (31 espécies), com duas espécies a mais do que os adultos. Houve baixa similaridade florística e estrutural entre os estratos, indicando uma substituição de espécies ao longo do tempo. A diversidade de Shannon foi significativamente menor para o estrato arbóreo (teste t), visto que apresentou baixa equabilidade, com dominância ecológica de poucas espécies. Ambos os estratos tiveram elevada proporção de espécies pioneiras, quando comparado com outros estudos. Zoocoria e espécies de ambientes florestais foram expressivamente mais abundantes no estrato regenerante. O estudo revelou um fragmento em franco processo de sucessão secundária e vulnerabilidade diante de pressões antrópicas, sendo importante os cuidados quanto à sua conservação.

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Heterogeneidade ambiental e estrutura da vegetação arbustivo-arbórea em três áreas de Cerrado sentido restrito no Sudoeste goiano

Cited by 12 publications

References 20 publications

Fitossociologia em fragmento de floresta estacional semidecidual em reserva legal no sudoeste do estado de Goiás

Fitossociologia em fragmento de floresta estacional semidecidual em reserva legal no sudoeste do estado de Goiás

Effects of fire regime on the bird community in an Amazonian savanna

Floristic and structure of different strata in an urban Semideciduous Forest in Jataí, Goiás state, Brazil

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