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https://www.readbyqxmd.com/read/27933452/responses-of-tropical-legumes-from-the-brazilian-atlantic-rainforest-to-simulated-acid-rain
#1
Guilherme C Andrade, Luzimar C Silva
We investigated the morphological and anatomical effects of simulated acid rain on leaves of two species native to the Brazilian Atlantic Rainforest: Paubrasilia echinata and Libidibia ferrea var. leiostachya. Saplings were subjected to acid rain in a simulation chamber during 10 days for 15 min daily, using H2SO4 solution pH 3.0 and, in the control, deionized water. At the end of the experiment, fragments from young and expanding leaves were anatomically analyzed. Although L. ferrea var. leiostachya leaves are more hydrophobic, rain droplets remained in contact with them for a longer time, as in the hydrophilic P...
December 8, 2016: Protoplasma
https://www.readbyqxmd.com/read/27930343/correction-to-supporting-information-for-liu-et-al-isoprene-photochemistry-over-the-amazon-rainforest
#2
(no author information available yet)
No abstract text is available yet for this article.
December 5, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27929324/hither-and-thither-how-do-we-innovate
#3
Robert G Frank
The Dembo-Wright Lecture provided a forum to discuss how innovation occurs in general and in rehabilitation psychology. The 21st Century will rely upon the creation and enhancement of knowledge. Universities, industries and professional disciplines are challenged to develop models that nurture their development of knowledge jobs that create new systems or products. A new model of nurturing innovation: The Rainforest, relies upon creating ecosystems that bring together and support the critical groups allowing instances that propel spontaneous growth of sustainable enterprises...
December 8, 2016: Rehabilitation Psychology
https://www.readbyqxmd.com/read/27928937/microbial-degradation-of-total-petroleum-hydrocarbons-in-crude-oil-a-field-scale-study-at-the-low-land-rainforest-of-ecuador
#4
Naga Raju Maddela, Laura Scalvenzi, Venkateswarlu Kadiyala
A field-level feasibility study was performed to determine total petroleum hydrocarbon (TPH)-degrading potential of two bacterial strains, Bacillus thuringiensis B3 and B. cereus B6, and two fungi, Geomyces pannorum HR and Geomyces sp. strain HV, all soil isolates obtained from an oil-field located in north-east region of Ecuador. Crude oil-treated soil samples contained in wooden boxes received a mixture of all the four microorganisms, and were incubated for 90 days in an open low-land area of Amazon rainforest...
December 8, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27926985/tropical-rainforests-that-persisted-inferences-from-the-quaternary-demographic-history-of-eight-tree-species-in-the-guiana-shield
#5
Stéphanie Barthe, Giorgio Binelli, Bruno Hérault, Caroline Scotti-Saintagne, Daniel Sabatier, Ivan Scotti
How Quaternary climatic and geological disturbances influenced the composition of Neotropical forests is hotly debated. Rain fall and temperature changes during and/or immediately after the Last Glacial Maximum (LGM) are thought to have strongly affected the geographical distribution and local abundance of tree species. The paucity of the fossil records in Neotropical forests prevents a direct reconstruction of such processes. To describe community-level historical trends in forest composition, we turned therefore to inferential methods based on the reconstruction of past demographic changes...
December 7, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27925069/helminth-parasites-of-galictis-cuja-carnivora-mustelidae-from-localities-in-the-atlantic-forest-of-brazil
#6
Pilar Corrêa, Cecília Bueno, Fabiano Matos Vieira, Luís Cláudio Muniz-Pereira
The current study aimed to investigate the helminth parasites of a population of Galictis cuja (Carnivora, Mustelidae) that occur in Atlantic Forest in the Southeastern region of Brazil. We necropsied 18 specimens of G. cuja, collected between January 2009 and May 2014, ran over victims on BR-040 highway, between the municipalities of Duque de Caxias, state of Rio de Janeiro and Juiz de Fora, state of Minas Gerais, localities inserted in Atlantic rainforest Biome. A total of six species of helminths were identified: Dioctophyme renale, Molineus elegans, Physaloptera sp...
December 1, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27917537/reproductive-biology-for-the-assessment-of-hunting-sustainability-of-rainforest-mammal-populations-through-the-participation-of-local-communities
#7
Pedro Mayor, Hani El Bizri, Richard E Bodmer, Mark Bowler
Wildlife subsistence hunting is a major source of protein for tropical rural populations and a prominent conservation issue. The intrinsic rate of natural increase (rmax ) of populations is a key reproductive parameter in the most-used assessments of hunting sustainability. However, since researchers face severe difficulties in obtaining reproductive data in the wild, these assessments often use 'classic' reproductive rates calculated mostly from captive studies conducted 30 years ago, resulting in flaws in almost 50% of studies and hampering decision-makings on wildlife management...
December 5, 2016: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/27911998/tropical-forest-loss-and-its-multitrophic-effects-on-insect-herbivory
#8
José Carlos Morante-Filho, Víctor Arroyo-Rodríguez, Madelon Lohbeck, Teja Tscharntke, Deborah Faria
Forest loss threatens biodiversity, but its potential effects on multitrophic ecological interactions are poorly understood. Insect herbivory depends on complex bottom-up (e.g., resource availability and plant antiherbivore defenses) and top-down forces (e.g., abundance of predators and herbivorous), but its determinants in human-altered tropical landscapes are largely unknown. Using structural equation models, we assessed the direct and indirect effects of forest loss on insect herbivory in 40 landscapes (115 ha each) from two regions with contrasting land-use change trajectories in the Brazilian Atlantic rainforest...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911924/plasmodium-yoelii-nigeriensis-n67-is-a-robust-animal-model-to-study-malaria-transmission-by-south-american-anopheline-mosquitoes
#9
Alessandra S Orfano, Ana Paula M Duarte, Alvaro Molina-Cruz, Paulo F Pimenta, Carolina Barillas-Mury
Malaria is endemic in the American continent and the Amazonian rainforest is the region with the highest risk of transmission. However, the lack of suitable experimental models to infect malaria vectors from the Americas has limited the progress to understand the biology of transmission in this region. Anopheles aquasalis, a major vector in coastal areas of South America, was found to be highly refractory to infection with two strains of Plasmodium falciparum (NF54 and 7G8) and with Plasmodium berghei (mouse malaria), even when the microbiota was eliminated with antibiotics and oxidative stress was reduced with uric acid...
2016: PloS One
https://www.readbyqxmd.com/read/27907121/environmental-and-geographical-factors-structure-soil-microbial-diversity-in-new-caledonian-ultramafic-substrates-a-metagenomic-approach
#10
Véronique Gourmelon, Laurent Maggia, Jeff R Powell, Sarah Gigante, Sara Hortal, Claire Gueunier, Kelly Letellier, Fabian Carriconde
Soil microorganisms play key roles in ecosystem functioning and are known to be influenced by biotic and abiotic factors, such as plant cover or edaphic parameters. New Caledonia, a biodiversity hotspot located in the southwest Pacific, is one-third covered by ultramafic substrates. These types of soils are notably characterised by low nutrient content and high heavy metal concentrations. Ultramafic outcrops harbour diverse vegetation types and remarkable plant diversity. In this study, we aimed to assess soil bacterial and fungal diversity in New Caledonian ultramafic substrates and to determine whether floristic composition, edaphic parameters and geographical factors affect this microbial diversity...
2016: PloS One
https://www.readbyqxmd.com/read/27902893/nematode-parasites-of-teiid-lizards-from-the-brazilian-amazon-rainforest
#11
Lilian Cristina Macedo, Scott L Gardner, Francisco Tiago Vasconcelos Melo, Teresa Cristina Sauer Avila-Pires, Elane Guerreiro Giese, Jeannie Nascimento Dos Santos
This study presents the helminth composition and parameters of infection by several species of nematodes in teiid lizards, Ameiva a. ameiva (Linnaeus, 1758), Cnemidophorus cryptus Cole & Dessauer, 1993, and Kentropyx calcarata Spix, 1825 from the Brazilian Amazonian Rainforest. The lizard populations we studied were parasitized by six species of Nemata, including: Spinicauda spinicauda (Olfers, 1919), Parapharyngodon alvarengai Freitas, 1957, Physaloptera sp. (adults), Physaloptera sp. (larvae), Piratuba digiticauda Lent and Freitas, 1941, and Anisakidae (larvae)...
November 30, 2016: Journal of Parasitology
https://www.readbyqxmd.com/read/27902310/paenibacillus-silvae-sp-nov-isolated-from-tropical-rainforest-soil
#12
Huiqin Huang, Fute Zhang, Min Liu, Ying Cui, Qianguang Sun, Jun Zhu, Xiaoxiao Zou, Shixiang Bao
Two Gram-stain-positive, facultatively aerobic, endospore-forming and rod-shaped bacteria, designated DB13031T and DB13311, were isolated from soil of Jiaxi Nature Reserve in Hainan, China. 16S rRNA gene analysis of the strains DB13031T and DB13311 showed that they were within the Paenibacillus cluster, with the highest similarities of Paenibacillus cucumis AP-115T (98.4 % and 98.3 %, respectively), Paenibacillus barcinonensis BP-23T (98.3 % and 98.2 %, respectively) and Paenibacillus oceanisediminis L10T (97...
October 25, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27901062/assessing-the-feasibility-of-fly-based-surveillance-of-wildlife-infectious-diseases
#13
Constanze Hoffmann, Melanie Stockhausen, Kevin Merkel, Sébastien Calvignac-Spencer, Fabian H Leendertz
Monitoring wildlife infectious agents requires acquiring samples suitable for analyses, which is often logistically demanding. A possible alternative to invasive or non-invasive sampling of wild-living vertebrates is the use of vertebrate material contained in invertebrates feeding on them, their feces, or their remains. Carrion flies have been shown to contain vertebrate DNA; here we investigate whether they might also be suitable for wildlife pathogen detection. We collected 498 flies in Taï National Park, Côte d'Ivoire, a tropical rainforest and examined them for adenoviruses (family Adenoviridae), whose DNA is frequently shed in feces of local mammals...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900783/chimpanzee-seed-dispersal-in-a-montane-forest-fragment-in-rwanda
#14
Rebecca L Chancellor, Aaron S Rundus, Sylvain Nyandwi
: Primate seed dispersal plays an important role in forest regeneration. It may be particularly important to anthropogenically disturbed habitats such as forest fragments. However, few studies have examined primate seed dispersal in these types of environments. Chimpanzees (Pan troglodytes) are frugivorous and large-bodied, and are therefore able to disperse both large and small seeds, making them an important seed dispersal species. We examined chimpanzee seed dispersal in Gishwati forest, a 14 km(2) montane rainforest fragment in Rwanda...
November 29, 2016: American Journal of Primatology
https://www.readbyqxmd.com/read/27896070/metagenome-sequencing-of-the-microbial-community-of-two-brazilian-anthropogenic-amazon-dark-earth-sites-brazil
#15
Leandro Nascimento Lemos, Rosineide Cardoso de Souza, Fabiana de Souza Cannavan, André Patricio, Victor Satler Pylro, Rogério Eiji Hanada, Tsai Siu Mui
The Anthropogenic Amazon Dark Earth soil is considered one of the world's most fertile soils. These soils differs from conventional Amazon soils because its higher organic content concentration. Here we describe the metagenome sequencing of microbial communities of two sites of Anthropogenic Amazon Dark Earth soils from Amazon Rainforest, Brazil. The raw sequence data are stored under Short Read Accession number: PRJNA344917.
December 2016: Genomics Data
https://www.readbyqxmd.com/read/27884525/carbon-accumulation-rates-recorded-in-the-last-150years-in-tropical-high-mountain-peatlands-of-the-atlantic-rainforest-se-brazil
#16
Lúcio F Lourençato, Pedro P Caldeira, Marcelo C Bernardes, Andressa C Buch, Daniel C Teixeira, Emmanoel V Silva-Filho
Peatlands are environmental matrices that store large amounts of organic carbon (TOC) and work as records of environmental changes. Recent record of organic carbon accumulated were assessed in two Forest National Parks, Itatiaia and Serra dos Órgãos in the Southeastern of Brazil. Based on organic and inorganic characterization, the cores from peatlands presented a predominance of organic material in an advanced stage of decomposition and those soils were classified as typical Haplosaprists Histosols. The combination of favorable topographic and climatic conditions led to rapid C accumulation across coastal mountain in the tropical peatlands studied, presenting an average accumulation rate of C, in the last century, of 194gCm(-2)yr(-1) about 7 higher times than the rate found in boreal and subarctic peatlands, those higher values may be related to changes in the hydrological cycle occurred since 1950s...
November 22, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27882467/are-there-keystone-mycorrhizal-fungi-associated-to-tropical-epiphytic-orchids
#17
Stefania Cevallos, Aminael Sánchez-Rodríguez, Cony Decock, Stéphane Declerck, Juan Pablo Suárez
In epiphytic orchids, distinctive groups of fungi are involved in the symbiotic association. However, little is known about the factors that determine the mycorrhizal community structure. Here, we analyzed the orchid mycorrhizal fungi communities associated with three sympatric Cymbidieae epiphytic tropical orchids (Cyrtochilum flexuosum, Cyrtochilum myanthum, and Maxillaria calantha) at two sites located within the mountain rainforest of southern Ecuador. To characterize these communities at each orchid population, the ITS2 region was analyzed by Illumina MiSeq technology...
November 23, 2016: Mycorrhiza
https://www.readbyqxmd.com/read/27881865/bandicoot-fossils-and-dna-elucidate-lineage-antiquity-amongst-xeric-adapted-australasian-marsupials
#18
Benjamin P Kear, Ken P Aplin, Michael Westerman
Bandicoots (Peramelemorphia) are a unique order of Australasian marsupials whose sparse fossil record has been used as prima facie evidence for climate change coincident faunal turnover. In particular, the hypothesized replacement of ancient rainforest-dwelling extinct lineages by antecedents of xeric-tolerant extant taxa during the late Miocene (~10 Ma) has been advocated as a broader pattern evident amongst other marsupial clades. Problematically, however, this is in persistent conflict with DNA phylogenies...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881756/a-combinatorial-approach-to-angiosperm-pollen-morphology
#19
Luke Mander
Angiosperms (flowering plants) are strikingly diverse. This is clearly expressed in the morphology of their pollen grains, which are characterized by enormous variety in their shape and patterning. In this paper, I approach angiosperm pollen morphology from the perspective of enumerative combinatorics. This involves generating angiosperm pollen morphotypes by algorithmically combining character states and enumerating the results of these combinations. I use this approach to generate 3 643 200 pollen morphotypes, which I visualize using a parallel-coordinates plot...
November 30, 2016: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/27878078/cool-habitats-support-darker-and-bigger-butterflies-in-australian-tropical-forests
#20
Shuang Xing, Timothy C Bonebrake, Chin Cheung Tang, Evan J Pickett, Wenda Cheng, Sasha E Greenspan, Stephen E Williams, Brett R Scheffers
Morphology mediates the relationship between an organism's body temperature and its environment. Dark organisms, for example, tend to absorb heat more quickly than lighter individuals, which could influence their responses to temperature. Therefore, temperature-related traits such as morphology may affect patterns of species abundance, richness, and community assembly across a broad range of spatial scales. In this study, we examined variation in color lightness and body size within butterfly communities across hot and cool habitats in the tropical woodland-rainforest ecosystems of northeast Queensland, Australia...
November 2016: Ecology and Evolution
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