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Abundância de microartrópodes do solo em fragmentos de mata com araucária no sul do Brasil Iheringia, Sér. Zool.
Duarte,Marcelo Maisonette.
The abundance of soil microarthropods from seven fragments of Araucaria Forest, Muitos Capões, Rio Grande do Sul, Brazil, was compared. The size of the fragments ranged from 0.25 ha to 35 ha, the two largest fragments are situated within the Aracuri Ecological Station and the remaining five are situated in a cattle ranching farm. In June 2000, three plots (10 m x 10 m) were established in the central area of each patch, and three soil cores (7 cm diameter x 6 cm deep) were taken per plot. The abundance of microarthropods in the upper six centimeters (soil + litter) varied between 63209 and 102704 ind.m-2, with oribatid mites (Acari, Cryptostigmata) being dominant in all fragments (between 46.9 % and 61.3 % of total individuals). Most microarthropod groups...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil microarthropods; Araucaria forest; Acari; Collembola; Habitat fragmentation.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000200008
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Análise preliminar das manifestações sonoras e do habitat de Picumnus nebulosus Sundevall (Aves, Picidae) Zoologia
Anjos,Luiz dos.
Observations and recordings of Picumnus nebulosus Sundevall, 1866 were carried out at Santa Rita farm (21º15'S, 50º00'), municipality of Palmeira, state of Paraná, southern Brazil, from 1984 to 1991. The song of this species (0.25 s to 0.64 s total time) is composed by a series of four to six high pitched (6.3 to 7.8 kHz) and short (0.03 to 0.05 s) notes (n=23). The fight call is a series of very short notes emitted between 2 to 8 kHz during 0.23 s to 0.32 s (n=34). The drum, a sequence of pulses, is emitted during 3.5 to 7.2 s (n=42); the four sequences in the begining are composed by four pulses and the rest by three pulses. P. nebulosus was more abundant in forest patches than in continuous forest. It was usually watched foraging in branches 1 to 4 mm...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Picumnus nebulosus; Sounds; Habitat; Abundance; Araucaria forest.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200009
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Araucaria angustifolia management by Liocourt quotient in rural field, Painel municipality, SC, Brazil PFB - Pesquisa Florestal Brasileira
Hess, André Felipe.
The objective of this study was to calculate the ratio of Liocourt in natural forest with 50 hectares of Araucaria angustifolia. The diameter distribution behaved as expected for native forests, generating a distribution curve similar to an inverted-J. The forest showed 456 araucaria trees per hectare with diameter at breast hight (DBH) above 10 cm and basal area of 24.64 m² ha-1. The value of the Liocourt quotient was 1.3, and 54 trees per hectare with 40 cm of DHB can be removed, with a reduction of 2.70 m² ha-1 of basal area or 135 m² total basal area and 34 trees per hectare for a 50 cm of DBH with a reduction of 1.9 m² ha-1 or 95 m² total basal area. Considering only the commercial classes (DBH ≥ 40 cm) this withdrawal represents a reduction of 9.5%...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sustainable forest management; Araucaria forest; Forest inventory Manejo florestal sustentado; Floresta ombrófila mista; Inventário florestal.
Ano: 2012 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/279
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Community structure and tree diversity in a subtropical forest in southern Brazil Biota Neotropica
Bordin,Kauane Maiara; Ferreira,Letícia Daiana; Rosina,Adriano; Malacarne,Marciana; Zanotelli,Patricia; Adami,Samuel Fernando; Vendruscolo,Giovana Secretti.
Abstract: Local and regional environmental variations lead to different species composition, creating transitional areas. An example is the Araucaria and Seasonal forest in southern Brazil. Our objectives were (1) to describe the tree community structure and composition of a subtropical forest in southern Brazil and (2) to compare the floristic relationships between two forest typologies (Araucaria and Seasonal forest) in order to characterize the study area and the distribution patterns of tree species. We conducted a survey at Chapecó National Forest (in southern Brazil) in an area of 1.2 ha, where all individuals ≥ 30 cm of circumference at breast height were sampled. Community structure was described using the traditional phytosociological parameters....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Biodiversity conservation; Floristic similarity; Phytosociology; Seasonal forest; Transitional forest.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200208
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Dispersion and aggregation patterns of tree species in Araucaria Forest, Southern Brazil Anais da ABC (AABC)
MAÇANEIRO,JOÃO PAULO DE; GASPER,ANDRÉ LUÍS DE; GALVÃO,FRANKLIN; SCHORN,LAURI A..
Abstract Studies about dispersal syndromes and spatial distribution can provide information about species ecology. However, few studies analyze these ecological patterns in different vegetation layers. In this work, we verified the relationship between the dispersion syndromes and the spatial distribution in different layers in Araucaria Forest. We sampled 180 plots with size and inclusion criteria that changed according to the vegetative layer. We sampled 15,545 individuals in 103 tree species. We found significant differences between the number of species in the dispersion syndromes (χ2 = 11.52; P ≤ 0.05) and spatial distribution patterns (χ2 = 10.94; P ≤ 0.05), being zoochoric and tends to clustering the most predominant. We also found a significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Seed dispersal; Spatial distribution; Layers analysis.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502397
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Diversity and composition of tiger moths (Lepidoptera: Arctiidae) in an area of Atlantic Forest in southern Brazil: is the fauna more diverse in the grassland or in the forest? Rev. Bras. Zool.
Ferro,Viviane Gianluppi; Romanowski,Helena Piccoli.
The Atlantic Forest is considered a biodiversity hotspot for conservation, because its fauna and flora are highly endemic and suffer from loss of natural habitats. This study assessed the composition and diversity of tiger moths (Lepidoptera: Arctiidae) in two floristic formations of the southern Atlantic Forest (grassland and Araucaria forest) and in a transition zone (forest edge). The moths were attracted to UV light reflected onto a white sheet. A total of 3,574 tiger moths were collected, representing 121 species. The rarefaction curves showed that the tiger-moth assemblage collected in the grassland was more diverse than the assemblages from the Araucaria forest and the transition zone. The assemblages in the forest and forest edge resembled each...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Arctiinae; Beta-diversity; Lithosiinae.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000100002
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Edge effect on vascular epiphytes in a subtropical Atlantic Forest Acta Botanica
Bianchi,Juliana Santos; Kersten,Rodrigo de Andrade.
Forest fragmentation affects biological communities by reducing habitat and increasing edges, thus reducing the effective size of the habitable zones. The subtropical atlantic Araucaria forest, typical on the southern Brazil, in some regions has been reduced to less than 1% of its original size lasting only in small isolated fragments. This study aimed to analyse the impact the edge has on vascular epiphyte ensemble in a remnant of Araucaria forest. We surveyed 40 host trees in four transects: one at the edge; and three at 15, 30 and 60 m from the edge. On each host tree we estimated the epiphyte biomass, using four size classes. We compared the transects using Jackknife estimator of absolute species number, diversity indices, non-metric multi-dimensional...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Disturbed areas; Araucaria forest; Subtropical Atlantic Forest; Fragmentation.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100012
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Fauna de Coleoptera no Parque Estadual de Vila Velha, Ponta Grossa, Paraná, Brasil: abundância e riqueza das famílias capturadas através de armadilhas de solo Zoologia
Marinoni,Renato C.; Ganho,Norma G..
This paper is a part of the studies on the Coleoptera fauna from Vila Velha, Ponta Grossa, Parana gathered through malaise and pitfall traps in sites with different floristic conditions. The present study deal with the data of pitfall trap captures, installed close to the malaise traps. The data were obtained weekly (52 samples), from September 1999 to August 2000. This survey was carried out on five areas, three of them with different plant succession stages (initial, intermediate, and advanced). The other two sites were: in Araucaria angustifolia plantation area, with the understory invaded by native forest vegetation and in the edge area. In the last one, two pitfall traps were installed, one inside the forest and other in the field vegetation. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Family composition; Family constancy; Leaf litter; Vegetation succession; Trophic group.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400029
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Fauna de Coleoptera no Parque Estadual de Vila Velha, Ponta Grossa, Paraná, Brasil: abundância e riqueza das famílias capturadas através de armadilhas malaise Zoologia
Ganho,Norma G.; Marinoni,Renato C..
The Coleoptera fauna of Parque Estadual de Vila Velha, Ponta Grossa, Parana, was sampled during 52 weeks using malaise traps (from September 1999 to August 2000). Five different sites were selected according to floristic conditions: one site in initial stage of vegetacional succession; one in intermediate stage; one in advanced stage (recognized as a mature forest); one with an Araucaria angustifolia (Bertol.) Kuntze plantation, invaded by native forest vegetation; and a fifth site in the edge area. The Coleoptera communities from the five sites were analyzed based on abundance and family richness. The total of specimens collected was 10,822 belonging to 64 families. The most abundant sites were those in initial and intermediate stages of plant succession;...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Family composition; Family constancy; Temporal succession; Vegetation succession.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400028
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Florística e estrutura do componente epifítico vascular em floresta ombrófila mista aluvial do rio Barigüi, Paraná, Brasil Rev. Bras. Bot.
KERSTEN,RODRIGO A.; SILVA,SANDRO M..
O estudo das epífitas vasculares foi realizado em floresta ombrófila mista aluvial do rio Barigüi, município de Araucária (25º34' S e 49º20' W); o levantamento qualitativo foi realizado em uma área aproximada de 8,6 ha. Para o estudo quantitativo foram sorteados 110 forófitos, divididos em três estratos (fuste baixo, fuste alto e copa). Em cada estrato foram atribuídas notas de abundância para as espécies epifíticas ocorrentes. No levantamento florístico foram encontradas 49 espécies (16 de Pteridophyta, 23 de Liliopsida e 10 de Magnoliopsida), das quais 34 foram observadas na amostragem quantitativa. As famílias e gêneros mais ricos foram: Orchidaceae, Polypodiaceae e Bromeliaceae, e Pleurothallis, Tillandsia e Oncidium. As áreas de maior similaridade...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vascular epiphytes; Floristic composition; Vertical distribution; Araucaria forest.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300002
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Genetic diversity and population structure of Vriesea reitzii (Bromeliaceae), a species from the Southern Brazilian Highlands Genet. Mol. Biol.
Soares,Luis Eduardo; Goetze,Márcia; Zanella,Camila M.; Bered,Fernanda.
Abstract The Southern Brazilian Highlands are composed by a mosaic of Mixed Ombrophilous Forest (MOF) and grassland formations, an interesting landscape for the study of population structure. We analyzed the genetic diversity within and among populations of the MOF-endemic bromeliad Vriesea reitzii by genotyping seven nuclear microsatellite loci in 187 individuals from six populations. We characterized levels of genetic diversity and assessed the genetic structure among populations. Vriesea reitzii populations showed high levels of genetic variation (number of alleles 28 - 43, allelic richness 3.589 - 5.531) and moderate levels of genetic differentiation (FST = 0.123, RST = 0.096). The high levels of genetic diversity may be explained by species...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mixed Ombrophilous Forest; Bromeliad; Araucaria forest; Gene flow; Conservation.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200308
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Interspecific variation in leaf pigments and nutrients of five tree species from a subtropical forest in southern Brazil Anais da ABC (AABC)
BÜNDCHEN,MÁRCIA; BOEGER,MARIA REGINA T.; REISSMANN,CARLOS B.; GERONAZZO,KELLY M..
ABSTRACT The purpose of this study was to analyze the seasonal variation in the nutrient and pigment content of leaves from five tree species - of which three are perennial (Cupania vernalis, Matayba elaeagnoides and Nectandra lanceolata) and two are deciduous (Cedrela fissilis and Jacaranda micrantha) - in an ecotone between a Deciduous Seasonal Forest and a Mixed Ombrophilous Forest in the state of Santa Catarina, Brazil. Leaf samples were collected in the four seasons of the year to determine the content of macronutrients (N, K, P, Mg, Ca, S) and photosynthetic pigments (Chla, Chlb, Chltot, Cartot, Chla:Chlb and Cartot:Chltot). The principal component analysis showed that leaf pigments contributed to the formation of the first axis, which explains most...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll; Araucaria forest; Deciduous Forest; Macronutrients.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200467
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Lycophytes and ferns composition of Atlantic Forest conservation units in western Paraná with comparisons to other areas in southern Brazil Acta Botanica
Lautert,Mayara; Temponi,Lívia Godinho; Viveros,Raquel S.; Salino,Alexandre.
This study surveyed lycophyte and fern species in four forest fragments in western Paraná, Brazil, and compared them to 15 other fragments with different plant formations from the Atlantic Forest biome in southern Brazil. In total, five lycophyte species (in two families and two genera) and 98 species and two varieties of ferns (in 16 families and 38 genera) were registered in the four fragments. The most represented families were Pteridaceae (23 spp.), Polypodiaceae (18 spp.), Aspleniaceae (13 spp.), and Thelypteridaceae (11 spp.). Asplenium (12 spp.), Thelypteris (10 spp.), and Blechnum (seven spp.) were among the most represented genera. The occurrence of Dicksonia sellowiana was noteworthy because it was associated with seasonal semideciduous forest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Pteridophytes; Semideciduous forest; Similarity; Species richness.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400499
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Patterns of genetic diversity in southern and southeastern Araucaria angustifolia (Bert.) O. Kuntze relict populations Genet. Mol. Biol.
Souza,Maria Isabel Ferreira de; Salgueiro,Fabiano; Carnavale-Bottino,Mariana; Félix,Durvalina Benedita; Alves-Ferreira,Marcio; Bittencourt,Juliana Vitoria Messias; Margis,Rogério.
Habitat fragmentation and a decrease in population size may lead to a loss in population genetic diversity. For the first time, the reduction in genetic diversity in the northernmost limit of natural occurence (southeastern Brazil) of Araucaria angustifolia in comparison with populations in the main area of the species continuous natural distribution (southern Brazil), was tested. The 673 AFLPs markers revealed a high level of genetic diversity for the species (Ht = 0.27), despite anthropogenic influence throughout the last century, and a decrease of H in isolated populations of southeastern Brazil (H = 0.16), thereby indicating the tendency for higher genetic diversity in remnant populations of continuous forests in southern Brazil, when compared to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucariaceae; Relict populations; Araucaria forest; Population genetics; AFLP.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300018
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Population structure of Rudgea parquioides (Rubiaceae), a shade-tolerant shrub species, in Southern Brazil Anais da ABC (AABC)
Cardoso,Fernanda C.G.; Salvalaggio,Ana P.B.; Marques,Márcia C.M..
The expectations that shade-tolerant forest species show 1) a population structure composed by a high amount of small individuals, and 2) biomass allocation for diameter higher than for height growth, were tested for Rudgea parquioides, a typical shrub in Southern Brazil. We described the size structure (height and stem diameter) and allometrical relations of a R. parquioides population by counting and measuring all the individuals in a 725m² area in the municipality of Curitiba (25"25'S; 49"19'W). A total of 916 individuals (12,634 ind.ha-1) were recorded in the area. The firstexpectation was supported, since distribution by height and diameter classes showed a predominance of small individuals (skewness coefficients > 1). On the other hand, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometry; Araucaria forest; Size distribution; Subtropical forest; Understorey.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300011
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Soil invertebrates in southern Brazilian Araucaria forest - grassland mosaic: differences between disturbed and undisturbed areas Iheringia, Sér. Zool.
Frainer,André; Duarte,Marcelo M..
Soil invertebrate distribution in Araucaria forest, grassland and edge habitats was studied in both disturbed and undisturbed areas in southern Brazil. Mean-density and taxa compositions were verified. Invertebrate densities differed between grassland and the other two habitats in the undisturbed area but not across the disturbed one. At the disturbed area taxa differed between the grassland and the other two habitats. The undisturbed area, on the other hand, presented taxa differences only between the grassland and the forest habitats. Acari, Arachnida and Collembola were the most sensitive taxa for detecting differences across habitats in both areas. At the disturbed area, these taxa presented densities lowering from the forest to the grassland. At the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Forest edge; Grasslands; Acari; Collembola.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000300013
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Species diversity, community structure and ecological traits of trees in an upper montane forest, southern Brazil Acta Botanica
Sühs,Rafael Barbizan; Hoeltgebaum,Marcia Patricia; Nuernberg-Silva,Anelise; Fiaschi,Pedro; Neckel-Oliveira,Selvino; Peroni,Nivaldo.
ABSTRACT Upper montane ecosystems in Brazil are little known, and their structural and functional aspects poorly understood. Our goals were to describe tree species diversity and community structure, and to characterize tree species in relation to their ecological traits, phytogeographic history and conservation status in an upper montane araucaria forest remnant. A total of 26 species belonging to 18 families were found in a 1-hectare permanent plot. The tree community mainly comprised trees with diameters of less than 20 cm and heights of between 6.5 and 9.5 m. Drimys angustifolia and Myrceugenia regnelliana had the highest importance values. Most species were shade tolerant while most individuals were pioneers. Most species and individuals presented...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Conservation; Diversity; Ecological traits; Floristics; Mixed rainforest; Permanent plots; Phytogeography; PPBio; Upper montane.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100153
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The last giant Araucaria trees in southern Brazil Scientia Agricola
Scipioni,Marcelo Callegari; Dobner Jr.,Mário; Longhi,Solon Jonas; Vibrans,Alexander Christian; Schneider,Paulo Renato.
ABSTRACT: Araucaria angustifolia (Bertol.) Kuntze is a native tree species of major importance in southern Brazil. It is a regional symbol due to its iconic shape and stature in the landscape; its wood was once economically important and its seeds are an important source of food for the fauna and are presently used in regional cuisine. Despite its importance and apparent abundance, the species is facing extinction mainly as a result of unregulated exploitation and deforestation. This study catalogued the remaining individuals in order to add to the body of knowledge available on A. angustifolia, a species that has become rare across its historic range. The circumference at breast height (1.30 m), the total height, and the tree volume were measured (3,529...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Giant tree; Large old tree; Monumental trees; Cavities trees; Araucaria forest.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300220
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Vitality of lichens under different light climates in an Araucaria forest (Pró-Mata RS, South Brazil) as determined by chlorophyll fluorescence Acta Botanica
Hampp,Rüdiger; Cardoso,Nelsa; Fleig,Mariana; Grüninger,Werner.
ABSTRACT The vitality of 64 lichen species (107 individual lichen thalli) growing under different light climates in an Araucaria forest in South Brazil was analyzed by chlorophyll fluorescence. Study sites were grouped according to their local light availability under full sunlight (about 2200 µmol m-2 s-1): 1 = low light, up to 20 µmol m-2 s-1; 2 = medium light, 20 to 100 µmol m-2 s-1; and 3 = high light, more than 100 µmol m-2 s-1. Maximum quantum yield of photosystem II, as shown by Fv/Fm of dark-adapted samples, was mainly between 0.3 and 0.7, with extremes of below 0.1 and up to 0.85. On average, yields were highest with low light availability (0.66). Groups 1 and 2 were not significantly different from each other, but groups 1 and 3, as well as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araucaria forest; Chlorophyll fluorescence; Heat dissipation; Lichens; PAM fluorometer; Photosynthetic yield.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000200188
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