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| Registros recuperados: 2.121 | |
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| Oliveira,Lukiel dos Santos; Andrade,Bianca Ott; Boldrini,Ilsi Iob; Moço,Maria Cecilia de Chiara. |
| ABSTRACT Aquatic ecosystems support species diversity, and knowledge of plant communities is essential for wetland conservation programs. This study provides a checklist of aquatic vascular plants of South Brazil and establishes their floristic affinities with bordering South America phytogeographical domains. The checklist was based on 52 sources, including 35 floristic lists, 17 regional taxonomic studies, and information from an electronic database on wetlands of South Brazil. Floristic similarities with published checklists for neighbouring regions were assessed. A total of 780 species distributed in 277 genera and 85 families of vascular plants were reported for South Brazil. Families with higher species richness were Cyperaceae (128), Poaceae (102),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floristic; Macrophyte distribution; Plant diversity; Species diversity; Wetland conservation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400709 |
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| Temponi,Lívia Godinho; Garcia,Flávia Cristina Pinto; Sakuragui,Cássia Mônica; Carvalho-Okano,Rita Maria de. |
| O presente trabalho consta do estudo taxonômico das espécies de Araceae que ocorrem no Parque Estadual do Rio Doce, com chaves dicotômicas, descrições e ilustrações botânicas. Foram realizadas excursões mensais de maio/1999 a abril/2000 para coleta do material botânico, ao longo de 11 trilhas preestabelecidas nas regiões central e sul do parque. São reconhecidas 13 espécies, pertencentes a oito gêneros, sendo Philodendron o mais representativo com três espécies. Quatro das espécies encontradas no Parque são novos registros para Minas Gerais: Asterostigma concinnum Schott, Heteropsis flexuosa (Kunth) G.S. Bunting, Philodendron speciosum Schott e Philodendron vargealtense Sakuragui. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Araceae; Taxonomia; Floresta Atlântica; Parque Estadual do Rio Doce. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000100009 |
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| Duarte,Lorrane Marques; Bertini,Simone Cristina Braga; Stürmer,Sidney Luiz; Lambais,Marcio Rodrigues; Azevedo,Lucas Carvalho Basilio. |
| ABSTRACT Arbuscular mycorrhizal fungi (AMF) play an important role in plant community productivity and structure, and so studying the factors that affect the diversity and structure of this fungal community is important for understanding their ecology in tropical forests. We investigated AMF spore communities and root colonization under three forest phytophysiognomies (Restinga Forest, REF; Lowland Ombrophilous Dense Forest, LLF; and Montane Ombrophilous Dense Forest, MTF). Spore abundance was lowest in LLF and highest in REF, with no statistical differences relative to MTF. Spore diversity indices and root colonization rates were not statistically different among the phytophysiognomies. However, principal components analysis revealed that AMF community... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arbuscular mycorrhiza; Glomeromycotina; Hierarchical partitioning; Plant community; Soil attributes; Soil microbiology; Tropical rain forest. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100050 |
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| Marins,Josy Fraccaro de; Carrenho,Rosilaine. |
| ABSTRACT There have been several reports of symbionts in the roots of plants that live in aquatic environments. Arbuscular mycorrhizal fungi (AMF) are the most common microsymbionts and possibly recolonized the aquatic environment together with plants; however, their functions and the extent of their benefits are unclear. Furthermore, the presence of other groups of fungi, such as dark septate fungi (DSF), with functions supposedly analogous to those of mycorrhizal fungi, has also been reported. The present work provides a compilation of data regarding the presence of arbuscular mycorrhizae in plants from, or under the influence of, aquatic environments, and co-colonization by AMF and DSF. Forty species of non-vascular plants, ferns, fern allies, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colonization; Flooding; Fungal co-occurrence; Macrophytes; Taxonomic diversity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000200295 |
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| Batista,Natália de Almeida; Bianchini,Edmilson; Carvalho,Eloisa de Souza; Pimenta,José Antonio. |
| We aimed to answer the following questions related to the architecture of individuals 0.5-3.0 m in height belonging to understory or canopy/emergent layer tree species: "Is there a difference between individuals belonging to different strata developing in environments with the same light intensity, in terms of their architecture?"; and "Given the same light intensity, do understory species exhibit less crown plasticity than do canopy/emergent layer species?" Thirteen architectural variables were evaluated in 80 individuals per species. We found that understory species showed greater increases in stem thickness and leaf number, as well as wider, deeper crowns, longer branches, greater self-shading and less crown plasticity. Stems and crowns were more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Resource allocation; Canopy; Allometric relationships; Understory. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100004 |
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| Maruyama,Pietro K.; Nunes,Carlos E. P.; Vizentin-Bugoni,Jeferson; Gustafsson,Simone; Morellato,Leonor Patricia Cerdeira. |
| ABSTRACT Most angiosperms rely on animals for pollination, and insects, especially bees, are being the most frequent pollinators. Many native Neotropical plants are frequently visited by the invasive honeybee (Apis mellifera), but its role in the pollination of these plants has been little investigated. We assessed the contribution of various floral visitors, including native bees and the honeybee, on the pollination of a generalist rupestrian grassland daisy, Aspilia jolyana (Asteraceae), in Serra do Cipó, Espinhaço Mountain Range, Brazil. We recorded floral visitors and measured the seed set resulting from one single visitation. We observed a total of 442 visits, mostly by bees, with Bombus pauloensis and Apis mellifera being the most common floral... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bee pollination; Bombus pauloensis; Generalization; Honeybee; Invasive species; Pollination efficacy; Serra do Cipó. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300386 |
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| Santos,André Maurício de Melo; Santos,Bráulio Almeida. |
| Edge influence, or edge effect, drives many biological changes in fragmented landscapes. This has been extensively studied in many forest ecosystems, but it remains to be described for the Brazilian Caatinga. Based on the biotic and physical conditions of the shrubby Caatinga, our prediction a priori was that this type of vegetation is free from edge influence in terms of vegetation structure and composition. We sampled shrubs, cacti and trees in twenty 200 m² plots on old edges (>60 yrs old) and interior of a 690 ha fragment, partially isolated and surrounded by Opuntia ficus-indica cacti. Plant height, stem diameter at ground level, stem density, species richness and diversity were statistically equal between edge and interior habitats. Magnitude of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shrubs; Edge effect; Habitat fragmentation; Seasonal scrub vegetation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062008000400018 |
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| Registros recuperados: 2.121 | |
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