scholarly journals Environmental factors affecting community structure of Sasa kurilensis in the understory of a beech forest

2019 ◽  
Vol 45 (1) ◽  
pp. 103-108 ◽  
Author(s):  
WU Chongyang ◽  
TANAKA Ryota ◽  
FUJIYOSHI Kyohei ◽  
HATTORI Itsuka ◽  
AKAJI Yasuaki ◽  
...  
Keyword(s):  
Community Structure ◽  
Environmental Factors ◽  
Beech Forest ◽  
Factors Affecting ◽  
Sasa Kurilensis

Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, south-east India

2013 ◽  
Vol 94 (3) ◽  
pp. 521-535 ◽  
Author(s):  
M. Rajkumar ◽  
Jun Sun ◽  
I. R. Jenkinson ◽  
M.M. Rahman
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Environmental Factors ◽  
Seasonal Patterns ◽  
Dissolved Oxygen Concentration ◽  
Copepod Community ◽  
Factors Affecting ◽  
Abundance And Diversity ◽  
High Diversity ◽  
Coleroon Estuary

A twelve-month investigation was undertaken on how copepod community structure varied in relation to environmental factors in the Coleroon estuary, south-east India. Sampling was monthly, from Station 1 in the sea to Station 4 in the Vettar backwaters. Canonical correspondence analysis (CCA) was applied to elucidate the environmental factors affecting the copepod community. A total of 104 copepod species in 38 genera and 26 families were recorded, with the Calanoids, Acartia erythraea and Oithona brevicornis being the most dominant. At all four stations, both these species loaded near the intercept of CCA axes 1 and 2, perhaps reflecting that they were autochthonous. Most species occurred in distinct seasonal patterns. Abundances ranged from 13 × 103 to 215 × 103 (ind. m−3). Coleroon waters showed high diversity (bits/ind.), from 5.29 at Station 3 to 4.97 at Station 4. Abundance correlated positively with temperature and salinity and negatively with rainfall, dissolved oxygen concentration (DO) and pH. Species diversity correlated strongly with abundance (P < 0.01). Abundance and diversity were highest during the summer, and both correlated positively with salinity. Temperatures (air and water), salinity, pH and DO varied in the ranges 26–36°C, 25–34.2°C, 9–38, 7.0–8.7 and 3.0–6.8 ml l-1, respectively. Nitrate, nitrite, phosphate and silicate (µM) varied in the ranges: 4.7–64.5, 0.4–14.1, 0.2–12.9 and 9.3–148, respectively.

Environmental factors affecting reproducibility of bioremediation field assays in Antarctica

2020 ◽  
Vol 169 ◽  
pp. 102915 ◽  
Author(s):  
L.M. Martínez Álvarez ◽  
L.A.M. Ruberto ◽  
J.M. Gurevich ◽  
W.P. Mac Cormack
Keyword(s):  
Environmental Factors ◽  
Factors Affecting

Environmental factors affecting seed germination and seedling emergence of three Phalaris species

2021 ◽  
pp. 105743
Author(s):  
M. Rezvani ◽  
S. Nadimi ◽  
F. Zaefarian ◽  
B.S. Chauhan
Keyword(s):  
Seed Germination ◽  
Environmental Factors ◽  
Seedling Emergence ◽  
Factors Affecting

Environmental factors affecting vegetation composition in the Alxa Plateau, China

2007 ◽  
Vol 69 (3) ◽  
pp. 473-489 ◽  
Author(s):  
M.Z. He ◽  
J.G. Zheng ◽  
X.R. Li ◽  
Y.L. Qian
Keyword(s):  
Environmental Factors ◽  
Vegetation Composition ◽  
Factors Affecting ◽  
Alxa Plateau

scholarly journals A Qualitative Study on Environmental Factors Affecting Iranian Women Entrepreneurs’ Growth Orientation

2012 ◽  
Vol 3 (2) ◽  
Author(s):  
Zahra Arasti ◽  
Sima Oliayee Rezayee ◽  
Behrooz Zarei ◽  
Shirin Majd Shariat Panahi
Keyword(s):  
Environmental Factors ◽  
Qualitative Study ◽  
Women Entrepreneurs ◽  
Iranian Women ◽  
Factors Affecting ◽  
Growth Orientation

scholarly journals Host and Environmental Factors Affecting the Intestinal Microbiota in Chickens

2018 ◽  
Vol 9 ◽  
Author(s):  
Jannigje G. Kers ◽  
Francisca C. Velkers ◽  
Egil A. J. Fischer ◽  
Gerben D. A. Hermes ◽  
J. A. Stegeman ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Intestinal Microbiota ◽  
Factors Affecting

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.

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