Comparative phylogeographic and demographic analyses reveal a congruent pattern of sister relationships between bird populations of the northern and south-central Atlantic Forest

2021 ◽  
Vol 154 ◽  
pp. 106973
Author(s):  
Fernanda Bocalini ◽  
Sergio D. Bolívar-Leguizamón ◽  
Luís F. Silveira ◽  
Gustavo A. Bravo
Keyword(s):  
Atlantic Forest ◽  
Bird Populations ◽  
South Central ◽  
Sister Relationships ◽  
Central Atlantic

scholarly journals Allometric equations for estimating tree biomass in restored mixed-species Atlantic Forest stands

2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Lauro Rodrigues Nogueira Júnior ◽  
Vera Lex Engel ◽  
John A. Parrotta ◽  
Antonio Carlos Galvão de Melo ◽  
Danilo Scorzoni Ré
Keyword(s):  
Atlantic Forest ◽  
Forest Restoration ◽  
Global Climate ◽  
Allometric Equations ◽  
Predictor Variables ◽  
Forest Stands ◽  
Tree Biomass ◽  
Biomass Equation ◽  
South Central ◽  
Biomass Equations

Restoration of Atlantic Forests is receiving increasing attention because of its role in both biodiversity conservation and carbon sequestration for global climate change mitigation. This study was carried out in an Atlantic Forest restoration project in the south-central region of São Paulo State - Brazil to develop allometric equations to estimate tree biomass of indigenous tree species in mixed plantations. Above and below-ground biomass (AGB and BGB, respectively), stem diameter (DBH: diameter at 1.3 m height), tree height (H: total height) and specific wood density (WD) were measured for 60 trees of 19 species. Different biomass equations (linear and nonlinear-transformed) were adjusted to estimate AGB and BGB as a function of DBH, H and WD. For estimating AGB and BGB, the linear biomass equation models were the least accurate. The transformed nonlinear biomass equation that used log DBH2, log H and log WD as predictor variables were the most accurate for AGB and the transformed nonlinear biomass equations that used log DBH2*WD as predictor variables were the most accurate for BGB. It is concluded that these adjusted equations can be used to estimate the AGB and BGB in areas of the studied project. The adjusted equations can be recommended for use elsewhere in the region for forest stands of similar age, tree size ranges, species composition and site characteristics.

scholarly journals Xenohyla eugenioi Caramaschi, 1998 (Amphibia: Anura: Hylidae): geographic distribution and new record from the state of Sergipe, northeastern Brazil

Check List ◽  
2015 ◽  
Vol 11 (5) ◽  
pp. 1744
Author(s):  
Rony Peterson Santos Almeida ◽  
Hugo Andrade ◽  
Ulisses Caramaschi ◽  
Eduardo José dos Reis Dias
Keyword(s):  
Atlantic Forest ◽  
Geographic Distribution ◽  
New Record ◽  
First Record ◽  
The State ◽  
Northeastern Brazil ◽  
Southeastern Brazil ◽  
Central State ◽  
South Central ◽  
Straight Line

The genus Xenohyla is currently composed of two species, X. truncata (Izecksohn, 1959) and Xenohyla eugenioi Caramaschi, 1998. Both species are usually found inside bromeliads; X. truncata inhabits the restingas of the state of Rio de Janeiro, southeastern Brazil, and X. eugenioi transitional areas between the Atlantic Forest and the Caatinga biomes in northeastern Brazil. We report the first record of X. eugenioi in the state of Sergipe, expanding the species geographic distribution by 423.4 km in a straight line in relation to its type locality, in the municipality of Maracás, south-central state of Bahia, Brazil.

scholarly journals Recurrent seasonal occurrence of the Lineated Woodpecker (Dryocopus lineatus) in a riparian fragment of the Atlantic Forest, northeastern Brazil

2019 ◽  
Vol 27 (1) ◽  
pp. 27-30
Author(s):  
Rafael Menezes ◽  
Georgiana M. Pimentel ◽  
Ricardo S. Rosa ◽  
Alan Loures Ribeiro
Keyword(s):  
Atlantic Forest ◽  
Recurrent Events ◽  
Northeastern Brazil ◽  
Seasonal Occurrence ◽  
Fragmented Landscapes ◽  
Bird Populations ◽  
Tree Cavity ◽  
Natal Habitat ◽  
Acoustical Signals ◽  
Cavity Nests

AbstractRiparian forests play important roles as ecological corridors and refuge habitat for many bird populations in fragmented landscapes. This report describes the seasonal occurrence of the Lineated Woodpecker (Dryocopus lineatus) in a small riparian fragment of Atlantic Forest, northeastern Brazil. A female was recorded by its visual and acoustical signals from September to October 2014. Similar occurrences were observed in the same months over three consecutive years. Two major hypotheses regarding the woodpecker seasonal occurrence are discussed here: i) the use of the riparian fragment for breeding, evidenced by tree-cavity nests; and ii) fleeing of the bird from its natal habitat due to fire in adjacent sugarcane fields, which commonly are burned in these two months. Such recurrent events suggest that D. lineatus uses the riparian fragment as refuge habitat, highlighting the importance of these environments for bird populations that inhabit fragmented landscapes of the Brazilian Atlantic Forest.

scholarly journals On a collection of caridean shrimps (Decapoda, Caridea) from St. Helena, south-central Atlantic, with further records from Ascension Island

Crustaceana ◽  
2019 ◽  
Vol 92 (7) ◽  
pp. 869-879
Author(s):  
Sammy De Grave ◽  
Judith Brown ◽  
Peter Wirtz ◽  
Arthur Anker
Keyword(s):  
Atlantic Ocean ◽  
Endemic Species ◽  
The South ◽  
Number Of Species ◽  
South Central ◽  
Ascension Island ◽  
Recent Collection ◽  
St Helena ◽  
Central Atlantic

Abstract We report on a recent collection of caridean shrimps from St. Helena in the south-central Atlantic Ocean, raising the total number of species known from the island to 24. Six species are newly recorded for the area, with no endemic species present. Additional three species are recorded from Ascension Island. A close biogeographical connection between the caridean faunas of St. Helena and Ascension Island is evident.

scholarly journals Phosphorus status of soils from the poultry zone in Puerto Rico

1969 ◽  
Vol 83 (1-2) ◽  
pp. 1-17
Author(s):  
Gustavo A. Martínez ◽  
Luis Olivieri ◽  
José A. Castro ◽  
Oscar Muñiz-Torres ◽  
José L. Guzmán
Keyword(s):  
Puerto Rico ◽  
Management Practices ◽  
Poultry Production ◽  
Surrounding Water ◽  
Nutrient Runoff ◽  
Bird Populations ◽  
South Central ◽  
Environmentally Sound ◽  
Sound Management ◽  
The Impact

The poultry industry is the economic backbone of the south central region of Puerto Rico. However, as in other poultry production regions in the U.S., concern has risen regarding its potentially damaging impact on the environment. Eutrophication of rivers and lakes, induced by excessive nutrient runoff, has forced regulatory agencies to closely evaluate manure disposal practices. Thus, the need is critical for environmentally sound management practices in poultry producing areas. The impact of years of manure applications on the nutritional status of soils was ascertained by evaluating a number of samples from nine poultry farms of Puerto Rico. The farms were selected among those with the highest bird populations. Sixty-seven percent of the samples analyzed contained phosphorus levels (Olsen) in excess of what is considered adequate to support crop growth. Fifty-six percent of these exceeded levels considered by some states as critical for water quality purposes. Measured levels ranged from undetectable values up to 900 mg/kg P.  A diagnostic tool known as the P index was used in an effort to identify areas of concern. According to this criterion, all farms studied had zones where nutrient runoff could threaten the quality of the surrounding water bodies.

The past, present and future of vegetation in the Central Atlantic Forest Corridor, Brazil

2020 ◽  
Vol 20 ◽  
pp. 100357 ◽  
Author(s):  
Romário O. de Santana ◽  
Rafael C. Delgado ◽  
Alexandre Schiavetti
Keyword(s):  
Atlantic Forest ◽  
The Past ◽  
Central Atlantic

scholarly journals Genetic variability of Conopophaga lineata (Conopophagidae) (Wied-Neuwied, 1831) in Atlantic Forest fragments

2007 ◽  
Vol 67 (4 suppl) ◽  
pp. 859-865 ◽  
Author(s):  
GPM. Dantas ◽  
FR. Santos ◽  
MA. Marini
Keyword(s):  
Genetic Variability ◽  
Forest Fragmentation ◽  
Atlantic Forest ◽  
Geographic Distance ◽  
Great Part ◽  
Mantel Test ◽  
Conservation Strategies ◽  
Forest Fragments ◽  
Genetic Population ◽  
Bird Populations

Forest fragmentation affects bird populations in many ways, modifying the composition of communities and favouring open country species. The Atlantic Forest is considered one of the most important biomes in the world, due to its great biodiversity, accelerated rates of deforestation, and high endemism. Despite these characteristics, few studies have evaluated the effects of forest fragmentation in the genetic structure of Atlantic forest bird populations. So, this study aims to verify the effects of forest fragmentation in the genetic population structure of Conopophaga lineata, through RAPD markers. To achieve this goal, 89 C. lineata individuals were captured in nine Atlantic Forest fragments in Minas Gerais State. The RAPD data indicate that forest fragmentation has not affected the genetic variation of C. lineata populations (Mann-Whitney U = 3.50; p = 0.11). Great part of the genetic variability of this species is found within populations and it was not observed a correlation between genetic and geographic distance (Mantel test t = 0.6250; p = 073). UPGMA analyses did not show defined clades and all branches showed low statistical support. The low population differentiation observed in this species can be due to a high gene flow among populations or a recent fragmentation. Thus, the current diversity status of C. lineata populations indicates that this species is not significantly affected by fragmentation. However, more genetic studies are essential to improve conservation strategies of Brazilian Atlantic Forest birds.

scholarly journals Evolutionary relationships within the lamioid tribe Synandreae (Lamiaceae) based on multiple low-copy nuclear loci

2016 ◽  
Author(s):  
Tilottama Roy ◽  
Nathan S Catlin ◽  
Drake M.G. Garner ◽  
Philip D Cantino ◽  
Anne-Cathrine Scheen ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
New World ◽  
Sister Group ◽  
Nuclear Ribosomal Dna ◽  
Migration Patterns ◽  
Edaphic Conditions ◽  
South Central ◽  
Nuclear Loci ◽  
Sister Relationships ◽  
And Migration

The subfamily Lamioideae (Lamiaceae) comprises ten tribes, of which only Stachydeae and Synandreae include New World members. Previous studies have investigated the phylogenetic relationships among the members of Synandreae based on plastid and nuclear ribosomal DNA loci. In an effort to re-examine the phylogenetic relationships within Synandreae, the current study incorporates data from four low-copy nuclear loci, PHOT1, PHOT2, COR, and PPR. Our results confirm previous studies based on chloroplast and nuclear ribosomal markers in supporting monophyly of tribe Synandreae, as well as sister relationships between Brazoria and Warnockia, and between that pair of genera and a monophyletic Physostegia. However, we observe incongruence in the relationships of Macbridea and Synandra. The placement of Synandreae within Lamioideae is poorly resolved and incongruent among different analyses, and the sister group of Synandreae remains enigmatic. Comparison of the colonization and migration patterns corroborates a single colonization of the New World by Synandreae during the mid-Miocene. This is in contrast to the only other lamioid tribe that includes New World members, Stachydeae, which colonized the New World at least twice—during the mid-Miocene and Pliocene. Edaphic conditions and intolerance of soil acidity may be factors that restricted the distribution of most genera of Synandreae to southeastern and south-central North America, whereas polyploidy could have increased the colonizing capability of the more wide-ranging genus, Physostegia.

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