Mostrando 6,421 - 6,440 Resultados de 76,556 Para Buscar '"ecology"', tiempo de consulta: 0.71s Limitar resultados
  1. 6421
    “…We review various solutions to common computational efficiency problems in ecological and evolutionary research. Our review pulls together material that is currently scattered across many sources and emphasizes those techniques that are especially effective for typical ecological and environmental problems. …”
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  2. 6422
    “…1. Size spectrum ecological models are representations of a community of individuals which grow and change trophic level. …”
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  3. 6423
    “…However, the direct assessment of dietary nutritional characteristics is usually difficult, which hampers monitoring nutritional constraints in natural populations. The feeding ecology of ruminant herbivores has been often assessed by analyzing fecal nitrogen (FN) concentrations, although this method has been less evaluated in other taxa. …”
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  4. 6424
    por Manley, Robyn, Boots, Mike, Wilfert, Lena
    Publicado 2015
    “…The potential for infectious pathogens to spillover and emerge from managed populations to wildlife communities is poorly understood, but ecological, evolutionary and anthropogenic factors are all likely to influence the initial exposure and subsequent infection, spread and impact of disease. …”
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  5. 6425
    “…This study is one of the first to document efficacy of an ecological sanitation system under field conditions and provides insight into composting methods and monitoring for other international settings.…”
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  6. 6426
    “…Greater documentation of the type and resolution of remotely-sensed products in ecological movement studies would enhance their usefulness. …”
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  7. 6427
  8. 6428
    “…Petrohan dam is a site for long-term ecosystem research as a part of Bulgarian long-term ecological research network. The other two systems belong to populated industrial areas. …”
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  9. 6429
    “…Still, understanding the metabolic potentials and ecological roles of rare and uncultured microbes in natural communities remains a major challenge. …”
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  10. 6430
    “…The species richness and abundance of all ecological groups were nonlinearly related to forest reduction and showed similar threshold values, i.e., there were abrupt changes in individuals and species numbers when forest amount was less than approximately 50%. …”
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  11. 6431
  12. 6432
  13. 6433
    “…CONCLUSIONS: Although the ecological study design precludes conclusions on causality, the association between increases in manufactured cigarette price and the number of people smoking hand-rolling tobacco suggests that the lower cost of smoking hand-rolling tobacco encourages downtrading when cigarette prices rise. …”
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  14. 6434
  15. 6435
    por Ashbolt, Nicholas J.
    Publicado 2015
    “…Meaning, to understand how to manage water-based pathogen diseases (a sub-set of saprozoses) we need to understand the microbial ecology of biofilms; with key factors including biofilm bacterial diversity that influence amoebae hosts and members antagonistic to water-based pathogens, along with impacts from biofilm substratum, water temperature, flow conditions and disinfectant residual—all control variables. …”
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  16. 6436
    “…Testing this assumption however requires that the rarity and ecological specialization of the species are quantified. …”
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  17. 6437
    por Hong, Jin-Kyung, Cho, Jae-Chang
    Publicado 2015
    “…To find environmental variables (EVs) shaping the ecological niche of the archaeal phylum Thaumarchaeota in terrestrial environments, we determined the abundance of Thaumarchaeota in various soil samples using real-time PCR targeting thaumarchaeotal 16S rRNA gene sequences. …”
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  18. 6438
    “…BACKGROUND: Ecological momentary assessment (EMA) uses real-time data collection to assess participants’ behaviors and environments. …”
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  19. 6439
    “…However, adaptive radiations can also contain a hierarchy of differentiation nested within them where species display only subtle phenotypic differences that still have substantial effects on ecology, function, and ultimately fitness. Sexual dimorphisms are also common in species displaying adaptive divergence and can be the result of differential selection between sexes that produce ecological differences between sexes. …”
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  20. 6440
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