scholarly journals Temperature Influence on Species Co-Occurrence Patterns in Treefall Gap and Dense Forest Ant Communities in a Terra- Firme Forest of Central Amazon, Brazil

Sociobiology ◽  
2014 ◽  
Vol 59 (2) ◽  
pp. 351 ◽  
Author(s):  
Wesley Dáttilo ◽  
Thiago Junqueira Izzo
Keyword(s):  
Structural Complexity ◽  
Null Model ◽  
Tropical Rain Forests ◽  
Terra Firme ◽  
Ant Communities ◽  
Central Amazon ◽  
Ant Community ◽  
Treefall Gaps ◽  
Dense Forest ◽  
Terra Firme Forest

In this study we evaluated the influence of temperature and species co-occurrence on the structure of an ant community of treefall gaps and surrounding dense forests in a terra-firme forest of Central Amazon, Brazil. For this, we collected ants at different hours, and at the time of each collection we measured the temperature of the environment. Even with the difference in the temperature variation and variation throughout the day, there was no difference in the richness and abundance of ants among the environments. Also, the ant species are distributed randomly and independently of one another in both studied environments in accordance with a null model (C-score). However, although not influenced by temperature, the ant composition of treefall gaps was different from the ant community of the surrounding dense forest. Possibly the composition and ant foraging in environments of treefall gaps and surrounding dense forests are not only influenced by temperature, but also by the interaction of this factor with the structural complexity of vegetation in terms of sites available for nesting and feeding, and other microclimatic factors. This generates a difference in ant composition of both environments. In addition, the structuring of ant community in tropical rain forests may actually be stochastic or neutral within each environment.

scholarly journals On the vectors of cutaneous leishmaniasis in the Central Amazon of Brasil. 3. Phlebotomine sand fly stratification in a terra firme forest

1982 ◽  
Vol 12 (3) ◽  
pp. 599-608 ◽  
Author(s):  
Jorge R. Arias ◽  
◽  
Rui A. de Freitas
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Dominant Species ◽  
Sand Fly ◽  
Leishmania Braziliensis ◽  
Sand Flies ◽  
Terra Firme ◽  
Central Amazon ◽  
Tree Canopies ◽  
Terra Firme Forest

Abstract Stratification studies showed that the vast majority of sand fly species in the Manaus region are found in tree canopies (15m), and that there are two dominant species which are the vectors of Leishmania braziliensis guyanensis. It took 43 weeks of trapping to capture all 50 species of sand flies collected.

Palaeoenvironmental studies in a wet area of the Central Amazon terra firme forest

1997 ◽  
Vol 26 (2) ◽  
pp. 842-845
Author(s):  
F. Fernando Lamego Simões Filho ◽  
Bruno J. Turcq
Keyword(s):  
Terra Firme ◽  
Central Amazon ◽  
Terra Firme Forest

scholarly journals Forest spatial heterogeneity and palm richness, abundance and community composition in Terra Firme forest, Central Amazon

2005 ◽  
Vol 28 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Renato Cintra ◽  
Arimatéa de Carvalho Ximenes ◽  
Fábio R Gondim ◽  
Marcela S Kropf
Keyword(s):  
Spatial Heterogeneity ◽  
Community Composition ◽  
Terra Firme ◽  
Central Amazon ◽  
Terra Firme Forest

scholarly journals On the vectors of cutaneous leishmaniasis in the Central Amazon of Brazil. 4. Sand fly emergence from a "terra firme" forest floor

1982 ◽  
Vol 12 (3) ◽  
pp. 609-611 ◽  
Author(s):  
Jorge R. Arias ◽  
◽  
Rui A. de Freitas
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Forest Floor ◽  
Amazon Basin ◽  
Sand Fly ◽  
Sand Flies ◽  
Terra Firme ◽  
Central Amazon ◽  
Emergence Traps ◽  
Terra Firme Forest

Abstract Over 30% of the sand flies collected in emergence traps from a "terra firme" forest in the Amazon Basin of Brazil were known vectors of cutaneous leishmaniasis. Fifteen species of sand flies were collected from a region where at least 50 species are known to occur. The majority of specimens were taken from traps set during the month of November. It was estimated that 100 m2 of terra firme forest will only produce an average of. 4.1 sand flies per day; however, this productivity may reach as hign as 14 sand flies per 100 m2 per day.

scholarly journals Avian distribution in treefall gaps and understorey of terra firme forest in the lowland Amazon

Ibis ◽  
2005 ◽  
Vol 147 (1) ◽  
pp. 109-129 ◽  
Author(s):  
JOSEPH M. WUNDERLE ◽  
MICHAEL R. WILLIG ◽  
LUIZA MAGALLI PINTO HENRIQUES
Keyword(s):  
Terra Firme ◽  
Treefall Gaps ◽  
Terra Firme Forest ◽  
Avian Distribution

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 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

Ant community structure along an extended rain forest–savanna gradient in tropical Australia

2008 ◽  
Vol 24 (4) ◽  
pp. 445-455 ◽  
Author(s):  
Laura T. van Ingen ◽  
Ricardo I. Campos ◽  
Alan N. Andersen
Keyword(s):  
Community Structure ◽  
Rain Forest ◽  
Habitat Type ◽  
Ant Communities ◽  
Savanna Woodland ◽  
Ant Community ◽  
Open Forest ◽  
Forest Regrowth ◽  
Tropical Australia ◽  
Ant Community Structure

AbstractIn mixed tropical landscapes, savanna and rain-forest vegetation often support contrasting biotas, and this is the case for ant communities in tropical Australia. Such a contrast is especially pronounced in monsoonal north-western Australia, where boundaries between rain forest and savanna are often extremely abrupt. However, in the humid tropics of north-eastern Queensland there is often an extended gradient between rain forest and savanna through eucalypt-dominated tall open forest. It is not known if ant community structure varies continuously along this gradient, or, if there is a major disjunction, where it occurs. We address this issue by sampling ants at ten sites distributed along a 6-km environmental gradient from rain forest to savanna, encompassing the crest and slopes of Mt. Lewis in North Queensland. Sampling was conducted using ground and baited arboreal pitfall traps, and yielded a total of 95 ant species. Mean trap species richness was identical in rain forest and rain-forest regrowth, somewhat higher in tall open forest, and twice as high again in savanna woodland. The great majority (78%) of the 58 species from savanna woodland were recorded only in this habitat type. MDS ordination of sites based on ant species composition showed a continuum from rain forest through rain-forest regrowth to tall open forest, and then a discontinuity between these habitat types and savanna woodland. These findings indicate that the contrast between rain forest and savanna ant communities in tropical Australia is an extreme manifestation of a broader forest-savanna disjunction.

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