scholarly journals Arthropoda, Arachnida, Scorpiones: Estação Científica Ferreira Penna and Juruti Plateau, Pará, Brazil

Check List ◽  
2007 ◽  
Vol 3 (2) ◽  
pp. 143
Author(s):  
Ricardo Pinto-da-Rocha ◽  
Cleiton Oliveira de Araújo ◽  
José Augusto Pereira Barreiros ◽  
Alexandre Bragio Bonaldo
Keyword(s):  
Relative Abundance ◽  
New Records ◽  
Pitfall Traps ◽  
Terra Firme ◽  
Flooded Forest ◽  
Terra Firme Forest

Six scorpion species were recorded using pitfall traps with drift-fences in the Amazonian terra firme forest of Estação Científica Ferreira Penna, Floresta Nacional de Caxiuanã, Melgaço, Pará, Brazil, during four expeditions in 2003: Brotheas sp. (relative abundance 0.6); Broteochactas parvulus Pocock, 1897 (0.22), Tityus paraensis Kraepelin, 1896 (0.06); Tityus silvestris Pocock, 1897 (0.04); Ananteris balzanii Thorell, 1891 (0.04) and Tityus strandi Werner, 1939 (0.02). Abundance in the non-flooded forest is higher than the flooded forest probably due to the availability of dry shelters. Five new records are presented for the Juruti Plateau, Pará: buthids Tityus metuendus Pocock, 1897, T. silvestris Pocock, 1897, T. strandi Werner, 1939; chactids Brotheas overali Lourenço, 1988, and Broteochactas parvulus Pocock, 1897.

scholarly journals Estructura y composición florística arbórea en dos tipos de bosque en la Zona de Amortiguamiento, Reserva Nacional de Tambopata

Q'EUÑA ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 39-50
Author(s):  
Sufer Marcial Baez Quispe ◽  
Jorge Santiago Garate Quispe
Keyword(s):  
Species Diversity ◽  
Floristic Composition ◽  
Forest Types ◽  
Terra Firme ◽  
Important Family ◽  
Flooded Forest ◽  
Madre De Dios ◽  
Terra Firme Forest ◽  
Socratea Exorrhiza ◽  
Tierra Firme

Resumén Se presenta un análisis y comparación de la diversidad, estructura y composición florística de dos tipos de bosque (de tierra firme e inundable) en dos concesiones de conservación en la Zona de Amortiguamiento de la Reserva Nacional Tambopata (Madre de Dios, Perú). Se instalaron 2 parcelas de 10 m x 500 m (0,5 ha) por tipo de bosque, donde se inventarió todos los individuos con un diámetro a la altura del pecho (DAP) ≥ 10 cm. Se realizó la caracterización estructural de ambos tipos de bosque, se calculó la diversidad en ellos y se estudió la similitud entre ellos. Los resultados sugieren diferencias entre los dos tipos de bosque en términos de abundancia, dominancia, estructura y composición florística de acuerdo con otros estudios en la Amazonia. La diversidad de especies fue alta en el bosque de tierra firme (α-Fischer 84,4–57,4 y H' 4,0–4,5) y baja en el bosque inundable (α-Fischer 39.9 – 42.4, H' 3.3 – 3.4). Arecaceae fue la familia más importante en los bosques inundables, mientras que Moraceae fue la familia más importante en los bosques de tierra firme. Ficus gomelleira, Pterocarpus amazonum, Hevea guianensis, y Socratea exorrhiza fueron las especies más importantes en los bosques de tierra firme, mientras que Iriartea deltoidea, Otoba parvifolia y Pseudolmedia laevis, fueron las más importantes en los bosques inundables. La composición florística fue diferente entre los dos tipos de bosque, con 19,3 % de similitud en promedio (distancia de Bray-Curtis). Nuestros resultados coinciden con los obtenidos en otras investigaciones para la Amazonía Peruana. AbstractThe aim of this study was to compare and analyze the diversity, structure and floristic composition of two forest types at buffer zone of the Tambopata National Reserve (Madre de Dios). Two plots per forest types of 10 m x 500 m (0.5 ha) were used, where all individuals with a diameter at the breast height DBH ≥ 10 cm were inventoried. The total height (HT) and DBH of all tree individuals were measured. In the structural analysis, DBH size classes, density, dominance, and the importance index were calculated. We calculated the Shannon-Weaver index, α-Fischer index, and Bray-Curtis distance to evaluate the species diversity and similarity between the two forest types. The results suggest differences between forest types in terms of abundance, dominance, structure and floristic composition in agreement with other studies in the Amazonia. The species diversity is higher the terra firme forest (α-Fischer 84.4–57.4 y H' 4.0–4.5) than in the flooded forest (α-Fischer 39.9 – 42.4 y H' 3.3 – 3.4). The Arecaceae was the most important family in the flooded forest while the Moraceae was the most important family in terra firme forest. Ficus gomelleira, Pterocarpus amazonum, Hevea guianensis, and Socratea exorrhiza were the most important species in terra firme 

scholarly journals Effect of Seasonal Rains and Floods on Seedling Recruitment and Compositional Similarity in Two Lowland Tropical Forests

Forests ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1297
Author(s):  
Brayan S. Polanía ◽  
Ana M. Aldana ◽  
Marius Bottin ◽  
Diana M. Cruz ◽  
Francisco Castro-Lima ◽  
...  
Keyword(s):  
Plant Species ◽  
Rainy Season ◽  
Seedling Recruitment ◽  
Sampling Site ◽  
Terra Firme ◽  
Precipitation Regime ◽  
Flooded Forest ◽  
Tree Community ◽  
Terra Firme Forest ◽  
Seasonally Flooded

Research Highlights: Seasonally flooded and terra firme forests are characteristic ecosystems of the Colombian Orinoco Basin and of great importance in the maintenance of regional biodiversity and ecosystem function. These forests have a unimodal precipitation regime that can cause a temporal effect on the seedling regeneration niche. This could partly explain the high diversity and coexistence of plant species in these forests, as well as the similarity in composition of seedlings and trees. Background and Objectives: Seedlings are a key factor in the assembly of plant communities. We evaluated the effect of flooding and rains on the dissimilarity and compositional affinity between trees and seedlings of seasonally flooded and terra firme forests. Materials and Methods: the tree community of these forests in San Martín (Meta, Colombia) was characterized and compared with their respective seedling communities before (June) and after (December) rain and flooding (during the rainy season). We evaluated plant species diversity and abundance (Shannon diversity and Pielou eveness index), as well as the compositional dissimilarities of each tree community with their corresponding seedling community sampled at the beginning and end of rains and flooding (Bray–Curtis dissimilarity). We also compared sampling site composition using a NMDS analysis. Results: We found that the terra firme forest had higher diversity compared to the flooded forest. Seedling density in the seasonally flooded forest decreased significantly after the flood but not in the terra firme forest at the end of the rainy season. The compositional dissimilarity between trees and seedlings in the seasonally inundated forest also decreased after the flood. However, this pattern was not evident in the terra firme forest. Conclusions: These results indicate that seasonal flooding generates a strong ecological filter that affects the realized niche of plants in these forests. Our results can contribute valuable information for the effective development of assisted restoration and conservation programs.

Arbuscular mycorrhizal fungal communities along a pedo-hydrological gradient in a Central Amazonian terra firme forest

Mycorrhiza ◽  
2013 ◽  
Vol 24 (1) ◽  
pp. 21-32 ◽  
Author(s):  
Rejane de Oliveira Freitas ◽  
Erika Buscardo ◽  
Laszlo Nagy ◽  
Alex Bruno dos Santos Maciel ◽  
Rosilaine Carrenho ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal ◽  
Fungal Communities ◽  
Terra Firme ◽  
Terra Firme Forest ◽  
Arbuscular Mycorrhizal Fungal

scholarly journals Ants (Hymenoptera: Formicidae) from an Amazonian fragmented landscape, Juara, Mato Grosso, Brazil, with new records of ant species

2018 ◽  
Vol 58 ◽  
pp. e20185840
Author(s):  
Ricardo Eduardo Vicente ◽  
Alexandre Casadei Ferreira ◽  
Rogério Conceição Lima dos Santos ◽  
Lívia Pires do Prado
Keyword(s):  
Transition Zone ◽  
New Records ◽  
The State ◽  
Fragmented Landscape ◽  
General Knowledge ◽  
Pitfall Traps ◽  
Mato Grosso ◽  
Brazilian State ◽  
First Time

The state of Mato Grosso is the 3rd largest Brazilian state, is covered with three major Brazilian biomes, including the Pantanal, Cerrado, and Amazonia. To date, 449 ant species are recorded in literature for the state. In the present work, we documented the ants sampled along a fragmented landscape, in the municipality of Juara, in the Cerrado-Amazon transition zone in the state of Mato Grosso, Brazil. The ant species were captured with Pitfall traps installed in 20 trails with 10 traps in each (totaling 200). Our results show 151 species, belonging to 43 genera and eight subfamilies, of which 28 species were recorded for the first time in the state and five species recorded for the first time in Brazil. Most genera collected were Pheidole Westwood, 1839 (45 species) followed by Crematogaster Lund, 1831 (11 species). By highlighting species recorded for the first time in state of Mato Grosso and Brazil, we hope to encourage new discoveries and increase the general knowledge of the ant fauna of different biomes in the region.

scholarly journals ESTRUTURA E DINÂMICA EM UMA FLORESTA DENSA DE TERRA FIRME, SUDESTE DO AMAPÁ, BRASIL

Nativa ◽  
2018 ◽  
Vol 6 ◽  
pp. 802
Author(s):  
Ronaldo Oliveira dos Santos ◽  
Rubiene Neto Soares ◽  
Bruno Costa do Rosário ◽  
Robson Borges de Lima ◽  
Jadson Coelho de Abreu
Keyword(s):  
Vertical Structure ◽  
Ecological Groups ◽  
Terra Firme ◽  
The Past ◽  
Structure And Dynamics ◽  
Major Species ◽  
Diameter Structure ◽  
Terra Firme Forest ◽  
Number Of Individuals ◽  
Late Stages

O objetivo deste estudo foi analisar a variação da estrutura diamétrica de uma comunidade arbórea em floresta densa de terra firme e dos principais grupos de espécies de estágios iniciais e tardios de sucessão, bem como caracterizar a estrutura vertical da floresta. Em 2016, foram inventariadas todas as árvores com DAP ≥ 10 cm e mensuradas suas alturas. Em 2017, as árvores foram reamostradas. A estrutura diamétrica foi analisada por meio do quociente “q” De Liocourt para: a comunidade, principais espécies de maior VI e os grupos ecológicos (GE). A análise da estrutura vertical da vegetação foi feita pela distribuição do número de árvores nos estratos, utilizando-se três métodos: (I) – Sanquetta (1995), (II) - Souza (1990), e (III) – Souza et al. (2003). A estrutura diamétrica da comunidade e dos GE no período avaliado foi caracterizada por árvores de pequeno porte nas menores classes de diâmetro. O Método II não trouxe bons resultados sobre o comportamento das espécies no estrato médio por apresentar fortes tendências em concentrar um maior número de indivíduos nesse estrato. Os resultados da estrutura altimétrica e diamétrica demonstraram indicativos que a exploração antrópica no passado alterou a estrutura da floresta.Palavras-chave: espécies amazônicas, “q” De Licocourt, estratificação, incremento. STRUCTURE AND DYNAMICS IN A DENSE OF TERRA FIRME FOREST, SOUTHEAST OF AMAPÁ, BRAZIL ABSTRACT:The study aimed to analyze the variation of the diameter structure of a arboreal community in a dense terra firme forest and the main groups of species of early and late stages of succession, as well as characterize the vertical structure of the forest. In 2016, all trees with DBH ≥ 10 cm were inventoried and their heights measured indirectly. In 2017, the trees were re-measured. The diametric structure was analyzed using the "q" De Liocourt quotient for: the community, major species of higher (VI) and ecological groups (EG). The analysis of the vertical structure of the vegetation was made by the distribution of the number of trees in the strata, using three methods: (I) – Sanquetta (1995), (II) - Souza (1990), and (III) – Souza et al. (2003). The diametric structure of the community and the EG during the period evaluated was characterized by small trees in the smallest diameter classes. Method II did not bring good results on the behavior of the species in the middle stratum because it presents strong tendencies to concentrate a greater number of individuals in this stratum. The results of the altimetric and diametric structure have demonstrated that antropic exploration in the past has altered the structure of the forest.Keywords: amazonian species, “q” De Licocourt, stratification, increment.

scholarly journals FLORISTIC COMPOSITION AND DIVERSITY IN TERRA FIRME FOREST UNDER WATER STRESS IN THE AMAZON

CERNE ◽  
2020 ◽  
Vol 26 (4) ◽  
pp. 403-412
Author(s):  
Ana Maria Moreira Fernandes ◽  
Maria de Lourdes Pinheiro Ruivo ◽  
Antônio Carlos Lola Costa
Keyword(s):  
Water Stress ◽  
Floristic Composition ◽  
Terra Firme ◽  
Terra Firme Forest

scholarly journals The influence of shelterbelts in arable farmland on beneficial and pest invertebrates

2015 ◽  
Vol 68 ◽  
pp. 367-372
Author(s):  
M.M. Davidson ◽  
B.G. Howlett ◽  
R.C. Butler ◽  
N.M. Taylor ◽  
M.K. Walker
Keyword(s):  
Relative Abundance ◽  
Pest Species ◽  
Pitfall Traps ◽  
Arable Crops ◽  
Beneficial Insects ◽  
Arable Farmland ◽  
The Mean ◽  
Beneficial Insect ◽  
Abundance And Diversity ◽  
On Farm

Shelterbelts of Pinus radiata and Cupressus macrocarpa are common landscape features on arable farmland in New Zealand This study aimed to determine whether such shelterbelts could influence the relative abundance and diversity of beneficial and pest invertebrates commonly found in arable crops Window intercept yellow sticky and pitfall traps were placed next to shelterbelts or post and wire fences and also 50 m from these borders into adjacent crops on two arable farms in Canterbury and one in Wairarapa over 12 weeks in summer 2012 and autumn 2013 The abundance of given species/taxa varied considerably depending on farm location season and field border type However the mean number of beneficial insect species/taxa per trap did not vary markedly between field border types or adjacent crops while traps at shelterbelts or their adjacent crops caught more of some pest species/taxa than traps beside fences The pine/macrocarpa shelterbelts did not markedly increase relative abundance or diversity of beneficial insects

scholarly journals First standardized inventory of ants (Hymenoptera: Formicidae) in the natural grasslands of Paraná: New records for Southern Brazil

2018 ◽  
Vol 58 ◽  
pp. 12 ◽  
Author(s):  
Weslly Franco ◽  
Rodrigo Machado Feitosa
Keyword(s):  
Species Richness ◽  
New Records ◽  
Forest Fragments ◽  
Pitfall Traps ◽  
Southern Brazil ◽  
Conservation Units ◽  
Natural Grasslands ◽  
Taxonomic Novelties ◽  
First Time ◽  
Ant Diversity

Despite the large number of studies investigating ant diversity in Brazilian biomes, no ant-related studies have been carried out in Campos Gerais, a grassland physiognomy in Paraná state. The present study is the first inventory of the ant fauna in one of the few conservation units protecting the Campos Gerais landscape, the Guartelá State Park (PEG). Sixty samples were collected from different habitats within PEG using pitfall traps. Qualitative samples of leaf litter were collected from forest fragments and submitted to Winkler extractors. In addition, manual qualitative sampling was carried out in the various physiognomies within the PEG. A total of 163 species was collected and sorted into 43 genera and nine subfamilies. Five genera and 28 species were recorded for the first time in the state of Paraná. Out of these, 17 species were also recorded for the first time in the Southern Region of Brazil and two were recorded for the first time to the country. The significant species richness in the PEG and the high number of new records is a strong sign of this ecosystem’s potential to reveal taxonomic novelties. These results suggest that PEG, and the Campos Gerais as a whole, should be the target of greater conservation efforts to preserve native remnants.

scholarly journals Vantanea maculicarpa (Humiriaceae): a new tree species from French Guiana

Phytotaxa ◽  
2018 ◽  
Vol 338 (1) ◽  
pp. 130 ◽  
Author(s):  
JULIEN ENGEL ◽  
DANIEL SABATIER
Keyword(s):  
New Species ◽  
Tree Species ◽  
French Guiana ◽  
Similar Species ◽  
Terra Firme ◽  
Terra Firme Forest ◽  
A New Species

A new species of Humiriaceae, Vantanea maculicarpa, growing in French Guiana terra-firme forest is described and illustrated. This new species is distinguished from all other species of Vantanea by fruits covered by white lenticels, a character so far unknown in this genus. It also presents a pubescent intrastaminal disk, a feature encountered in two other Vantanea species only: it is further distinguished from V. parviflora, the morphologically most similar species, by more stamens and from V. ovicarpa by a much smaller rough endocarp with five valves. A key to the species of French Guiana and the IUCN status Least Concern (LC) are proposed.

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