نتایج جستجو برای: environmental variables changed along an edge

تعداد نتایج: 6276428  

2005
Mark E. Nissen

The Edge represents a fresh approach to organizational design, moving knowledge and power to the edges of organizations. But this raises issues in terms of comparative performance with respect to alternate organizational designs (esp. military C2). The research described in this article represents the first stage of a multi-disciplinary, multi-year investigation into the design and efficacy of ...

سعیدی مهرورز, شهریار , سیداخلاقی , سیدعباس, نقی‌نژاد, علی‌رضا ,

Knowledge about plant communities and their relationships with ecological factors is one of the most important issues in conservation ecology particularly in the recent decades. The current investigation aimed to study the vegetation ecology of Palangan habitat in Aghdagh Protected area, Ardabil province. In order to collect species and environmental data, a total of 45 plots along a 1500 m ele...

2018
Brandon J. Varela David Lesbarrères Roberto Ibáñez David M. Green

Research on the amphibian skin microbiota has focused on identifying bacterial taxa that deter a pathogenic chytrid fungus, and on describing patterns of microbiota variation. However, it remains unclear how environmental variation affects amphibian skin bacterial communities, and whether the overall functional diversity of the amphibian skin microbiota is associated to such variation. We sampl...

2013
Nicole Ashley Davies Galina Gramotnev Clive McAlpine Leonie Seabrook Greg Baxter Daniel Lunney Jonathan R. Rhodes Adrian Bradley

Recent research has shown that the ecology of stress has hitherto been neglected, but it is in fact an important influence on the distribution and numbers of wild vertebrates. Environmental changes have the potential to cause physiological stress that can affect population dynamics. Detailed information on the influence of environmental variables on glucocorticoid levels (a measure of stress) a...

2014
Kozo Watanabe So Kazama Tatsuo Omura Michael T. Monaghan

A central question linking ecology with evolutionary biology is how environmental heterogeneity can drive adaptive genetic divergence among populations. We examined adaptive divergence of four stream insects from six adjacent catchments in Japan by combining field measures of habitat and resource components with genome scans of non-neutral Amplified Fragment Length Polymorphism (AFLP) loci. Neu...

Journal: :PloS one 2016
Xiao-Dong Yu Liang Lü Feng-Yan Wang Tian-Hong Luo Si-Si Zou Cheng-Bin Wang Ting-Ting Song Hong-Zhang Zhou

The aim of this paper is to increase understanding of the relative importance of the input of geographic and local environmental factors on richness and composition of epigaeic steppe beetles (Coleoptera: Carabidae and Tenebrionidae) along a geographic (longitudinal/precipitation) gradient in the Inner Mongolia grassland. Specifically, we evaluate the associations of environmental variables rep...

2015
Xavier Arnan Xim Cerdá Javier Retana Darren Ward

We analyze the relative contribution of environmental and spatial variables to the alpha and beta components of taxonomic (TD), phylogenetic (PD), and functional (FD) diversity in ant communities found along different climate and anthropogenic disturbance gradients across western and central Europe, in order to assess the mechanisms structuring ant biodiversity. To this aim we calculated alpha ...

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