Patterns of litter production in a secondary alluvial Atlantic Rain Forest in southern Brazil

Scheer, Maurício Bergamini; Gatti, Gustavo; Wisniewski, Celina; Mocochinski, Alan Yukio; Cavassani, André Targa; Lorenzetto, Alexandre; Putini, Francisco

doi:10.1590/s0100-84042009000400018

Cited by 23 publications

(21 citation statements)

References 37 publications

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“…Na Floresta Atlântica, vários autores encontraram o mesmo padrão temporal de maior deposição de serapilheira nos meses de maior precipitação, temperatura e fotoperíodo (Pinto & Marques, 2003;Araújo et al, 2005;Dickow, 2010;Menezes et al, 2010), sendo essa característica determinante na ciclagem de nutrientes dessas florestas. Em outros ambientes, no entanto, o padrão temporal de deposição de serapilheira tende a ser diferente, uma vez que cada comunidade é composta por muitas espécies, cada uma com diferentes ciclos e respostas ao seu ambiente (Scheer et al, 2009). Aidar & Joly (2003), estudando plantas de araribá (Centrolobium tomentosum Guillem.…”

Section: Resultsunclassified

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Deposição de Fitomassa em Formações Secundárias na Floresta Atlântica do Paraná

et al. 2016

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RESUMOEste trabalho objetivou avaliar a deposição de serapilheira em três formações secundárias com diferentes idades na Floresta Ombrófila Densa Submontana no Paraná. A serapilheira anual produzida foi avaliada mensalmente por 25 coletores (1 m 2 ) distribuídos sistematicamente em cada formação secundária (1 ha) e separada em frações (ramos, órgãos reprodutivos, miscelânea e folhas). Não houve diferença significativa entre as formações quanto à deposição anual de serapilheira, provavelmente devido às semelhanças entre elas com relação à estrutura da vegetação e às condições meteorológicas. A maior deposição de serapilheira total e frações ocorreu nos meses com maiores temperatura e precipitação. A fração folhas foi a mais representativa na serapilheira total em todas as formações, sendo que na floresta secundária menos desenvolvida (FS-1) houve contribuição de um menor número de espécies, quando comparada com a floresta secundária intermediária (FS-2) e a floresta secundária mais desenvolvida (FS-3).Palavras-chave: Floresta Ombrófila Densa, serapilheira, sucessão florestal. Litterfall in Secondary Forests in the Brazilian Atlantic Forest of Paraná State ABSTRACTThis research is focused in evaluating the litterfall in secondary forests of Dense Ombrophilous Submontane Forest in the coast of Paraná state. The annual litterfall produced was evaluated monthly by 25 collectors (1 m 2 ), systematically distributed in each secondary formation (1 ha) and separated into fractions (twigs, reproductive organs, remains, and leaves). There was no significant difference between the secondary formations on the annual litterfall, probably due to the similarities they both have with respect to the structure of vegetation and meteorological conditions. The highest deposition of total litter and fractions occurred in the months of highest temperature and rainfall. The fraction leaves were the most representative of total litterfall in all formations, with the less evolved secondary forests (FS-1) contributing with fewer number of species, when compared with the intermediate and more evolved secondary forests (FS-2) and (FS-3), respectively.

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Section: Resultsunclassified

“…Alguns trabalhos envolvendo deposição de serapilheira e ciclagem de nutrientes em sucessão secundária têm sido desenvolvidos no litoral do Paraná, nas diversas fitofisionomias da Floresta Ombrófila Densa (Pinto & Marques, 2003;Scheer et al, 2009;Dickow et al, 2012).…”

Section: Introductionunclassified

Deposição de Fitomassa em Formações Secundárias na Floresta Atlântica do Paraná

et al. 2016

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“…This species occurred in the area at the beginning of natural regeneration (area III), where it was found in the stratum above the ground forming dense clusters about 2.5 m high. This shrub is frequently found in the Atlantic Forest biome as the first species to establish after pasture abandonment, generally with a higher density than the other woody species (Scheer et al, 2009). …”

Section: /11mentioning

confidence: 99%

Seed Bank from Abandoned Pastures in the Coastal Region of Paraná

et al. 2018

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The aim of the present study was to evaluate the seed bank of three contiguous areas: pasture abandoned for ten years, with soil amended by partial beheading for two years at horizon A (area I); pasture identical to the previous example, but with recent mobilization of the topsoil (area II); area in the early stages of regeneration (area III). Field work was conducted in Morretes-PR, in an area of evergreen rain forest. In November 2013, seed bank samples were collected from ten points per area (0.30 × 0.30 m) and at three depths (0-3 cm + litter, 3.1 to 6.0 cm and 6.1 to 9.0 cm). We obtained 25.151 seeds m -2 , distributed between 85 species. The predominant life form was herbaceous (98%), with the Cyperaceae family being the most abundant. In the seed banks of the three areas, only a few seeds from a restricted number of woody species were found, which therefore, represents a limited resource for forest restoration purposes.

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“…For example, proximity to preserved forest areas may speed up the successional process because the preserved forests may serve as a source of propagules for the fragment (Brown & Lugo 1990). In this context, the controversial pattern of litterfall in Atlantic forests (higher amounts of litter production in later successional phases (Vidal et al 2007, Scheer et al 2009), or alternatively higher litterfall in early succession phases (Leitão-Filho et al 1993) or even the absence of differences in litterfall between fragments of different successional phases (Barlow et al 2007, Dickow et al 2012, may be related to the divergent structures and historical disturbance of the forest fragments studied. Fragments ES-1 and ES-2 showed no differences in litter production, which was likely due to their similar structure (Jurinitz (2010)).…”

Section: Litterfallmentioning

confidence: 99%

Produção de serrapilheira e decomposição foliar em fragmentos florestais de diferentes fases sucessionais no Planalto Atlântico do estado de São Paulo, Brasil

et al. 2012

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Litterfall and litter decomposition are vital processes in tropical forests because they regulate nutrient cycling. Nutrient cycling can be altered by forest fragmentation. The Atlantic Forest is one of the most threatened biomes in the world due to human occupation over the last 500 years. This scenario has resulted in fragments of different size, age and regeneration phase. To investigate differences in litterfall and leaf decomposition between forest successional phases, we compared six forest fragments at three different successional phases and an area of mature forest on the Atlantic Plateau of Sao Paulo, Brazil. We sampled litter monthly from November 2008 to October 2009. We used litterbags to calculate leaf decomposition rate of an exotic species, Tipuana tipu (Fabaceae), over the same period litter sampling was performed. Litterfall was higher in the earliest successional area. This pattern may be related to the structural properties of the forest fragments, especially the higher abundance of pioneer species, which have higher productivity and are typical of early successional areas. However, we have not found significant differences in the decomposition rates between the studied areas, which may be caused by rapid stabilization of the decomposition environment (combined effect of microclimatic conditions and the decomposers activities). This result indicates that the leaf decomposition process have already been restored to levels observed in mature forests after a few decades of regeneration, although litterfall has not been entirely restored. This study emphasizes the importance of secondary forests for restoration of ecosystem processes on a regional scale.

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Patterns of litter production in a secondary alluvial Atlantic Rain Forest in southern Brazil

Cited by 23 publications

References 37 publications

Deposição de Fitomassa em Formações Secundárias na Floresta Atlântica do Paraná

Deposição de Fitomassa em Formações Secundárias na Floresta Atlântica do Paraná

Seed Bank from Abandoned Pastures in the Coastal Region of Paraná

Produção de serrapilheira e decomposição foliar em fragmentos florestais de diferentes fases sucessionais no Planalto Atlântico do estado de São Paulo, Brasil

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