scholarly journals Ecology of sleeping: the microbial and arthropod associates of chimpanzee beds

2018 ◽  
Vol 5 (5) ◽  
pp. 180382 ◽  
Author(s):  
Megan S. Thoemmes ◽  
Fiona A. Stewart ◽  
R. Adriana Hernandez-Aguilar ◽  
Matthew A. Bertone ◽  
David A.  Baltzegar ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Diversity ◽  
Sea Level ◽  
Indoor Environment ◽  
Surrounding Environment ◽  
Dry Seasons ◽  
Wet And Dry Seasons ◽  
Environmental Microbes

The indoor environment created by the construction of homes and other buildings is often considered to be uniquely different from other environments. It is composed of organisms that are less diverse than those of the outdoors and strongly sourced by, or dependent upon, human bodies. Yet, no one has ever compared the composition of species found in contemporary human homes to that of other structures built by mammals, including those of non-human primates. Here we consider the microbes and arthropods found in chimpanzee beds, relative to the surrounding environment ( n  = 41 and 15 beds, respectively). Based on the study of human homes, we hypothesized that the microbes found in chimpanzee beds would be less diverse than those on nearby branches and leaves and that their beds would be primarily composed of body-associated organisms. However, we found that differences between wet and dry seasons and elevation above sea level explained nearly all of the observed variation in microbial diversity and community structure. While we can identify the presence of a chimpanzee based on the assemblage of bacteria, the dominant signal is that of environmental microbes. We found just four ectoparasitic arthropod specimens, none of which appears to be specialized on chimpanzees or their structures. These results suggest that the life to which chimpanzees are exposed while in their beds is predominately the same as that of the surrounding environment.

scholarly journals Associations between indoor environment in residential buildings in wet and dry seasons and health of students in upper northern Thailand

Indoor Air ◽  
2021 ◽  
Author(s):  
Tippawan Prapamontol ◽  
Dan Norbäck ◽  
Nathaporn Thongjan ◽  
Neeranuch Suwannarin ◽  
Kawinwut Somsunun ◽  
...  
Keyword(s):  
Indoor Environment ◽  
Residential Buildings ◽  
Northern Thailand ◽  
Dry Seasons ◽  
Wet And Dry Seasons

scholarly journals THE PHYLLOSPHERE, INDOOR MICROBIOME AND HUMAN HEALTH Authors

2020 ◽  
Vol 2 (2) ◽  
pp. 249-259
Keyword(s):  
Microbial Diversity ◽  
Human Health ◽  
Natural Environment ◽  
Indoor Environment ◽  
Natural Source ◽  
Built Environments ◽  
Natural Sources ◽  
Beneficial Effects ◽  
Surrounding Environment ◽  
Indoor Microbiome

A healthy indoor environment is very vital as humans spend a greater percentage of their life within built environments. A healthy and quality environment is determined by the biodiversity of and features of the natural environment. The indoor environment just like every other environment possesses a unique community of microorganism which depends on the level of contact between the environment and natural sources. Plants are significant sources of microbial diversity in an environment. There is an interplay between the phyllosphere and the troposphere where the microorganisms released from the phyllosphere perform several beneficial effects consequently, improving human health. The indoor environment must however be enriched with natural sources of microbial release to enhance its biodiversity. This paper therefore focuses on the phyllosphere as a natural source for enhancing indoor biodiversity, the interplay between the phyllosphere and its surrounding environment and its implication on human health.

Comparing the community structure of Bacteria and micro-Eukarya from the Hawaiian anchialine ecosystem during wet and dry seasons

2018 ◽  
Vol 82 (1) ◽  
pp. 87-104 ◽  
Author(s):  
SK Hoffman ◽  
KW Seitz ◽  
JC Havird ◽  
DA Weese ◽  
SR Santos
Keyword(s):  
Community Structure ◽  
Dry Seasons ◽  
Wet And Dry Seasons

Community structure and biological integrity of macroinvertebrates in the wet and dry seasons of Wei River basin, China

2015 ◽  
Vol 35 (14) ◽  
Author(s):  
殷旭旺 YIN Xuwang ◽  
李庆南 LI Qingnan ◽  
朱美桦 ZHU Meihua ◽  
宋佳 SONG Jia ◽  
武玮 WU Wei ◽  
...  
Keyword(s):  
Community Structure ◽  
River Basin ◽  
Biological Integrity ◽  
Dry Seasons ◽  
Wei River Basin ◽  
Wei River ◽  
Wet And Dry Seasons

scholarly journals Seasonal and Temperature Dependent Variations in Proximate Parameters and Mineral Elements of Smoke-Dried Catfish (Clarias gariepinus, Burchell, 1822) using Traditional and Eco-Friendly Kilns in Lagos, Nigeria

2020 ◽  
Vol 24 (4) ◽  
pp. 639-643
Author(s):  
M.M. Ogunbambo
Keyword(s):  
Crude Protein ◽  
Clarias Gariepinus ◽  
Mineral Elements ◽  
Drying Process ◽  
Temperature Dependent ◽  
Crude Fibre ◽  
Significant Difference ◽  
Dry Seasons ◽  
Mineral Compositions ◽  
Wet And Dry Seasons

Smoke-drying Clarias gariepinus (catfish) provides animal protein and a source of livelihood in Lagos, Nigeria. Changes occurring to seasonal and mineral compositions of smoke-dried catfish using local Traditional Drum Kiln (TDK) and a newly constructed Eco-Friendly Kiln (EFK) fitted with a flame, drying and electronic components was carried out in this study. The smoke-drying process was carried out in both wet and dry seasons and smoke-dried catfish samples stored at ambient and adjusted refrigerated temperatures of 28 and 4 0C. The smoke-drying procedure was  standardized at 60 - 80 0C and kiln lasted 24 ± 3 hours. Moisture content results showed a significant difference when the catfish samples were smoke-dried using TDK and EFK and stored in ambient and controlled temperatures in both wet and dry seasons while crude protein, lipid, ash and crude fibre values were significantly different when stored only in dry season. Mineral elements phosphorus, sodium, copper, magnesium and iron showed a significant difference when stored at both temperatures and seasons using both kilns. Mineral elements were found to be most stable in smoke-dried catfish samples when stored at controlled temperatures. This work proved that standardizing smoke-drying process using both kilns resulted in good quality smoke-dried catfish but showed that higher biochemical values were obtained when EFK is used. Key words: Nigeria, Smoke-drying Kilns, Seasons, Ambient, Controlled Temperatures

An inter-dependence of flood and drought: disentangling amphibian beta diversity in seasonal floodplains

2017 ◽  
Vol 68 (11) ◽  
pp. 2115 ◽  
Author(s):  
Leonardo F. B. Moreira ◽  
Tainá F. Dorado-Rodrigues ◽  
Vanda L. Ferreira ◽  
Christine Strüssmann
Keyword(s):  
Community Structure ◽  
Environmental Factors ◽  
Quantitative Data ◽  
Explanatory Variable ◽  
Biotic Interactions ◽  
Ecological Role ◽  
Β Diversity ◽  
Amphibian Community ◽  
Dry Seasons

Species composition in floodplains is often affected by different structuring factors. Although floods play a key ecological role, habitat selection in the dry periods may blur patterns of biodiversity distribution. Here, we employed a partitioning framework to investigate the contribution of turnover and nestedness to β-diversity patterns in non-arboreal amphibians from southern Pantanal ecoregion. We investigated whether components of β-diversity change by spatial and environmental factors. We sampled grasslands and dense arboreal savannas distributed in 12 sampling sites across rainy and dry seasons, and analysed species dissimilarities using quantitative data. In the savannas, both turnover and nestedness contributed similarly to β diversity. However, we found that β diversity is driven essentially by turnover, in the grasslands. In the rainy season, balanced variation in abundance was more related to altitude and factors that induce spatial patterns, whereas dissimilarities were not related to any explanatory variable during dry season. In the Pantanal ecoregion, amphibian assemblages are influenced by a variety of seasonal constraints on terrestrial movements and biotic interactions. Our findings highlighted the role of guild-specific patterns and indicated that mass effects are important mechanisms creating amphibian community structure in the Pantanal.

scholarly journals Stochastic Assembly Leads to Alternative Communities with Distinct Functions in a Bioreactor Microbial Community

mBio ◽  
2013 ◽  
Vol 4 (2) ◽  
Author(s):  
Jizhong Zhou ◽  
Wenzong Liu ◽  
Ye Deng ◽  
Yi-Huei Jiang ◽  
Kai Xue ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Diversity ◽  
Microbial Community Structure ◽  
Community Assembly ◽  
Ecosystem Functioning ◽  
Dominant Role ◽  
Microbial Biodiversity ◽  
Stochastic Assembly

ABSTRACTThe processes and mechanisms of community assembly and its relationships to community functioning are central issues in ecology. Both deterministic and stochastic factors play important roles in shaping community composition and structure, but the connection between community assembly and ecosystem functioning remains elusive, especially in microbial communities. Here, we used microbial electrolysis cell reactors as a model system to examine the roles of stochastic assembly in determining microbial community structure and functions. Under identical environmental conditions with the same source community, ecological drift (i.e., initial stochastic colonization) and subsequent biotic interactions created dramatically different communities with little overlap among 14 identical reactors, indicating that stochastic assembly played dominant roles in determining microbial community structure. Neutral community modeling analysis revealed that deterministic factors also played significant roles in shaping microbial community structure in these reactors. Most importantly, the newly formed communities differed substantially in community functions (e.g., H2production), which showed strong linkages to community structure. This study is the first to demonstrate that stochastic assembly plays a dominant role in determining not only community structure but also ecosystem functions. Elucidating the links among community assembly, biodiversity, and ecosystem functioning is critical to understanding ecosystem functioning, biodiversity preservation, and ecosystem management.IMPORTANCEMicroorganisms are the most diverse group of life known on earth. Although it is well documented that microbial natural biodiversity is extremely high, it is not clear why such high diversity is generated and maintained. Numerous studies have established the roles of niche-based deterministic factors (e.g., pH, temperature, and salt) in shaping microbial biodiversity, the importance of stochastic processes in generating microbial biodiversity is rarely appreciated. Moreover, while microorganisms mediate many ecosystem processes, the relationship between microbial diversity and ecosystem functioning remains largely elusive. Using a well-controlled laboratory system, this study provides empirical support for the dominant role of stochastic assembly in creating variations of microbial diversity and the first explicit evidence for the critical role of community assembly in influencing ecosystem functioning. The results presented in this study represent important contributions to the understanding of the mechanisms, especially stochastic processes, involved in shaping microbial biodiversity.

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