نتایج جستجو برای: potential habitats

تعداد نتایج: 1091610  

2017
Séverin Hatt Pierre Mouchon Thomas Lopes Frédéric Francis

Landscape diversification is a key element for the development of sustainable agriculture. This study explores whether the implementation of habitats for pest natural enemies enhances conservation biological control in an adjacent field. In the present study conducted in Gembloux (Belgium) in 2016, the effect of two different habitats (wildflower strips and a forest) and aphid abundance on the ...

2004
Silke Bauer Jörg Samietz

Population regulation has been related to differences in the quality among habitats, which mediate differences in vital rates such that in poor habitats reproductive rates are lower than those in high-quality habitats. The spatial distribution of animals in such habitats depends on their preferences and the degree to which individuals have a free choice of a particular habitat. The identified m...

2015
Magne Sætersdal Ivar Gjerde Einar Heegaard Jan Erik Ørnelund Nilsen Brian J. Palik Eric J. Jokela

Retention forestry, including the retention of woodland key habitats (WKH) at the forest stand scale, has become an essential management practice in boreal forests. Here, we investigate the spatial distribution of 9470 habitat patches, mapped according to the Complementary Habitat Inventory method (CHI habitats), as potential WKHs in 10 sample areas in Norway. We ask whether there are parts of ...

2000
Krzysztof Ulfig

The data on the occurrence of keratinolytic fungi in sewage, municipal solid waste and waste-contaminated habitats are reviewed. In these habitats, keratinolytic fungi occur with extreme abundance. The factors influencing qualitative and quantitative compositions of the fungi in the habitats are discussed. It is concluded that keratinolytic fungi can be the bioindicators of environmental pollut...

Journal: :Geospatial health 2006
Guo-Jing Yang Penelope Vounatsou Marcel Tanner Xiao-Nong Zhou Jürg Utzinger

Political and health sector reforms, along with demographic, environmental and socio-economic transformations in the face of global warming, could cause the re-emergence of schistosomiasis in areas where transmission has been successfully interrupted and its emergence in previously non-endemic areas in China. In the present study, we used geographic information systems and remote sensing techni...

Journal: رستنیها 2009
M. SAEEDIFARD, M.N. PADASHT DEHKAIE S.M. HOSSEINI

The aim of this study was modelling the spatial distribution ofLilium ledebourii (Baker) Boiss. based on ecological characteristics, in order to predict potential habitats for conservation of a rare plant. Knowledge of the spatial distributions of rare and threatened species and the underlying ecological factors plays an important role in regional conservation assessments and development planni...

2015
Hui Chen Ying Liu Menghui Zhang Guoyang Wang Zhengnan Qi Laura Bridgewater Liping Zhao Zisheng Tang Xiaoyan Pang

Periodontitis is a highly prevalent polymicrobial disease worldwide, yet the synergistic pattern of the multiple oral pathogens involved is still poorly characterized. Here, saliva, supragingival and subgingival plaque samples from periodontitis patients and periodontally healthy volunteers were collected and profiled with 16S rRNA gene pyrosequencing. Different oral habitats harbored significa...

2016
Julien Terraube Frédéric Archaux Marc Deconchat Inge van Halder Hervé Jactel Luc Barbaro

A major conservation challenge in mosaic landscapes is to understand how trait-specific responses to habitat edges affect bird communities, including potential cascading effects on bird functions providing ecosystem services to forests, such as pest control. Here, we examined how bird species richness, abundance and community composition varied from interior forest habitats and their edges into...

ژورنال: زیست شناسی ایران 2018

Sound travels very efficiently underwater, so the potential area impacted can be thousands of square kilometers or more. Anthropogenic activities such as commercial shipping, recreational activities, drilling, seismic exploration or energy production (hydroelectric power plants), have made underwater noise pollution an increasing and perhaps dominant factor in the aquatic environment. Nowadays,...

Journal: :Journal of Animal Ecology 2021

Arthropod communities dwelling in adjacent habitats are able to impact one another via shared natural enemies. In agricultural landscapes, drastic differences resource availability between crop and non-crop cause variation insect herbivore densities over short distances, potentially driving inter-habitat effects. Moreover, the composition of landscape which embedded likely affects realised atta...

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