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| Registros recuperados: 20 | |
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| Ferreira, Helena Lucia Menezes; CETEC - Belo Horizonte; Souza, Maria Beatriz Gomes e; UNIMONTES - Montes Claros; López, Cristiane Machado; CETEC - Belo Horizonte. |
| Os métodos “Jarra”, “Remocao Manual” e “Draga de Eckman modificada” foram avaliados para amostrar a fauna perifitica associada a macrofitas aquaticas. Foram coletadas 63 amostras em cinco ambientes lenticos e tres loticos na reserva da biosfera da Serra do Espinhaco (Estado de Minas Gerais, Brasil). Os testes estatisticos Anova e Tukey foram feitos para riqueza de Protista, Rotifera e Crustacea, enquanto para a abundancia de Protista, Rotifera, Crustacea, Gastrotricha, Tardigrada e Nematoda foram avaliados os percentuais. Os protozoarios e rotiferos representaram 80% da abundancia e riqueza da comunidade. Nos ecossistemas avaliados todos os metodos foram relevantes para Protista, por outro lado, o metodo da Jarra foi o mais adequado para a analise de... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas Biosphere Reserve; Ecotone; Littoral region; Lentic and lotic ecosystems; Periphyton fauna. Biosphere Reserve; Ecotone; Littoral region; Lentic and lotic ecosystems; Periphyton fauna. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/377 |
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| Vargas,Betânia da Cunha; Oliveira,Ana Paula Caldeira; Udulutsch,Renata Giassi; Marcusso,Gabriel Mendes; Sabino,Gabriel Pavan; Melo,Pablo Hendrigo Alves de; Grillo,Roberta Marotti Martelletti; Kamimura,Vitor de Andrade; Assis,Marco Antonio. |
| Abstract A floristic survey of climbing plants was carried out in an ecotone area of seasonal semideciduous forest (SSF) and forested savanna (CER), in Porto Ferreira State Park (PFSP), Southeastern Brazil. We sampled the reproductive specimens every month during two periods, March 2010 to September 2011 and April and July 2015. The surveys were performed by the walking method, and the sampled individuals were classified by habit, climbing mechanism and dispersal mode. Overall, 109 species, belonging to 67 genera and 29 families, were recorded; 49 species occurred in both, 29 and 31 were exclusive to SSF and CER, respectively. Bignoniaceae and Malpighiaceae were the richest families, with 17 species, followed by Sapindaceae (12 species), Asteraceae and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Seasonal Semideciduous Forest; Ecotone; Climbing plants. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200302 |
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| Luštrik, R.; Turjak, M.; Kralj-Fišer, S.; Fišer, C.. |
| Interspecific interactions between surface and subterranean species may be a key determinant for species distributions. Until now, the existence of competition (including predation) between these groups has not been tested. To assess the coexistence and potential role of interspecific interactions between surface Gammarus fossarum and subterranean Niphargus timavi, and to determine their micro distributions, we conducted a series of field and laboratory observations. We aimed to determine: (1) species substrate preference, (2) whether the presence of G. fossarum influences the habitat choice of N. timavi, and (3) possible predation effects on micro habitat choice of small juveniles. Throughout a small river in SW Slovenia, N. timavi was predominantly found... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amphipoda; Cannibalism; Competition; Ecotone; Microhabitat preference; Predation; 42.74. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/377199 |
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| Pinheiro,Leandra C.; Abe,Pedro S.; Bitar,Youszef O. C.; Albarelli,Luiz P. P.; Santos-Costa,Maria C.. |
| ABSTRACT The present study encompasses the species composition and ecological characteristics of the snake community in a Cerrado-Amazon transition zone in Midwest of Brazil (state of Mato Grosso). The data were collected during six excursions to the "Tanguro" (study area) by visual encounter survey, pitfall traps with drift fences and non-systematic sampling. We collected 194 specimens, distributed in 34 species, 26 genera, and eight families. The most abundant species were Crotalus durissus Linnaeus, 1758 (n = 50), Philodryas olfersii (Lichtenstein, 1823) (n = 15), Philodryas nattereri Steindachner, 1870 (n = 13), Xenodon rabdocephalus (Wied, 1824) (n = 12), Lachesis muta (Linnaeus, 1766) (n = 10) and Erythrolamprus almadensis (Wagler, 1824) (n = 10).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Squamata; Amazon rainforest; Savanna; Community; Ecotone. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212015000200147 |
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| Silvopastoral systems of the Swiss Jura Mountains serve as a traditional source of forage and timber in the subalpine vegetation belt, but their vulnerability to land use and climate change puts their future sustainability at stake. We coupled experimental and modeling approaches to assess the impact of climate change on the pasture-woodland landscape. We drew conclusions on the resistance potential of wooded pastures with different management intensities by sampling along a canopy cover gradient. This gradient spanned from unwooded pastures associated with intensive farming to densely wooded pastures associated with extensive farming. Transplanted mesocosms of these ecosystems placed at warmer and drier conditions provided experimental evidence that... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Aboveground biomass; Drought; Ecotone; Grassland; Pasture; Silvopastoral system; Subalpine; Transplantation; Woodland. |
| Ano: 2013 |
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| PURIFICAÇÃO,Keila Nunes; PASCOTTO,Márcia Cristina; MOHR,Adriana; LENZA,Eddie. |
| Schefflera morototoni fruits are important food source for neotropical frugivorous birds. The objectives of the present study were to record bird species that consumed fruits of S. morototoni in a forest in the transition Cerrado-Amazon Forest, Mato Grosso, Brazil and evaluate the potential of these bird species as seed dispersers of this plant species. During 31 observation hours, from November 1 to 5, 2011, 23 bird species were recorded consuming S. morototoni fruits. Out of these, 20 bird species were considered potential seed dispersers, as they swallow the fruits whole. The species consuming the greatest number of fruits were Aburria cujubi (24% of total consumed fruits), Pteroglossus castanotis (18%), Tangara palmarum (12%), Patagioenas speciosa... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avifauna; Ecotone; Seed dispersal. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000100057 |
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| Ribeiro,Tiago Maciel; Ivanauskas,Natália Macedo; Martins,Sebastião Venâncio; Polisel,Rodrigo Trassi; Santos,Rochelle Lima Ramos dos; Miranda Neto,Aurino. |
| The aim of this work was to evaluate the floristic composition, richness, and diversity of the upper and lower strata of a stretch of mixed rain forest near the city of Itaberá, in southeastern Brazil. We also investigated the differences between this conservation area and other stretches of mixed rain forest in southern and southeastern Brazil, as well as other nearby forest formations, in terms of their floristic relationships. For our survey of the upper stratum (diameter at breast height [DBH] > 15 cm), we established 50 permanent plots of 10 × 20 m. Within each of those plots, we designated five, randomly located, 1 × 1 m subplots, in order to survey the lower stratum (total height > 30 cm and DBH < 15 cm). In the upper stratum, we... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Araucaria angustifolia; Cluster analysis; Ecotone; Phytogeography; Phytosociology. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100010 |
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| ARRUDA,DANIEL M.; FERREIRA-JUNIOR,WALNIR G.; DUQUE-BRASIL,REINALDO; SCHAEFER,CARLOS E.R.. |
| The Deciduous Complex that occurs in northern Minas Gerais State, Brazil, raises questions about the floristic affinities of these formations in relation to neighboring phytogeographical domains. Little is known about the identity of the seasonal forest formations that comprise this complex, or about its relationships to abiotic components, such as soils, topography and climate. This study aimed to recognize the patterns of floristic similarity of all studied fragments of dry forest of northern Minas Gerais with soil and climate attributes, based on the available database. Cluster analysis indicated the existence of two floristic groups that had clear associations with either the Koppen's BSh (semi-arid) or Aw (seasonal tropical) climates. Likewise, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate; Deciduous seasonal forest; Ecotone; Phytogeography; Soil. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200623 |
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| MADELLA-AURICCHIO,CLÁUDIA RENATA; AURICCHIO,PAULO; SOARES,ENIO SARAIVA. |
| ABSTRACT The reptile diversity of the Middle Gurguéia River Basin in southern Piauí, Brazil, is little known. The rapid expansion of agriculture in the region is converting the Cerrado and Caatinga into large farming areas, which threatens biodiversity and hastens its loss. In this study, 68 specimens of reptiles from a university collection were examined, comprising 29 species: ten lizards, one amphisbaenian, 15 snakes, two turtles and one crocodilian. They were collected from five locations in the Middle Gurguéia Basin, a region not previously evaluated for reptiles. The most abundant species is a member of Tropidurus. Comparison with eight other areas in the eastern Parnaíba Basin indicated that the diversity of reptiles in the Middle Gurguéia is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptilia; Helicops; Ecotone; Cerrado; Caatinga. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017002800375 |
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| BRANDÃO,Marcus V.; PEDROSO,Mônica A.; COLAS-ROSAS,Paul F.; AIRES,Caroline C.; ROCHA,Patrício A. da. |
| ABSTRACT Lophostoma carrikeri has been mostly recorded within the Amazon biome. There are scarce records in the northern Brazilian Amazon, but also records outside this biome, which were neglected in literature. The aim of this study was to update and extend the distribution of L. carrikeri. Seven new localities in Brazil were provided, including the first records for the states of Rondônia and Mato Grosso, filling a large gap in the species distribution, and three additional records for the state of Pará. Our results reinforce the notion that L. carrikeri is widely distributed in the Amazon, but is also present in other biomes in Brazil, such as Caatinga, Cerrado, and transitional areas. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Carriker’s round-eared bat; Phyllostomini; Savanna; Rainforest; Ecotone. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200119 |
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| Sendall,Kerrie M.; Vourlitis,George L.; Lobo,Francisco A.. |
| Leaf gas exchange, water potential, and specific leaf area of two tropical semi-deciduous tree species, Brosimum lactescens S. Moore and Tovomita schomburgkii Planch & Triana, were quantified to establish how these properties were affected by seasonal variations in rainfall and leaf canopy position. The study was conducted at a site near Sinop Mato Grosso, Brazil, which is located within the ecotone of savanna and tropical rain forest. Both species exhibited significant declines in leaf water potential (ΨL), specific leaf area, area- and mass-based light saturated photosynthesis and dark respiration, and maximum stomatal conductance during the dry-season, suggesting that leaf structural properties and gas exchange are significantly altered by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Brosimum lactescens; Climate change; Ecotone; Photosynthetic response; Tovomita schomburgkii; Tropical transitional forest. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000100008 |
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| Registros recuperados: 20 | |
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