Showing 4,701 - 4,720 results of 5,118 for search '"population density"', query time: 0.19s Refine Results
  1. 4701

    Forecasting the necessity of grain fumigation during storage by Dimitar KUZMANOV, Nikolay DIMITROV

    Published 2009-06-01
    “…According to the simulation models composed for the population growth and feeding damage of the insects: Sitophilus oryzae (L.), Sitophilus granarius (L.) and Rhizopertha dominica (F.) the populations densities have been determined at which the grain fumigation costs at using phosphorus hydrogen preparations equal the damage values caused by insects. …”
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  2. 4702

    Towards more compact South African settlements through informal housing: The case of backyard densification in Bridgton and Bongolethu, Oudtshoorn by Louis Lategan, Juanee Cilliers

    Published 2016-05-01
    “…Results show that informal backyard rentals increase dwelling unit and population densities substantially in the case study, accommodating households who would otherwise occupy land illegally on the urban periphery, contributing to urban sprawl. …”
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  3. 4703

    Home range and density of three sympatric felids in the Southern Atlantic Forest, Brazil by C. B. Kasper, A. Schneider, T. G. Oliveira

    “…Abstract Home range and minimal population densities of Southern tiger cat (Leopardus guttulus), margay (Lepardus wiedii) and jaguarundi (Puma yagouaroundi) were estimated between 2005 and 2006 in Taquari Valley, near the southern edge of the Atlantic Rainforest in Brazil. …”
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  4. 4704

    Automatic detection and quantification of wild game crop damage using an unmanned aerial vehicle (UAV) equipped with an optical sensor payload: a case study in wheat by Karel Kuželka, Peter Surový

    Published 2018-01-01
    “…Wildlife-induced damage of agricultural crops is an unfavorable consequence of elevated population densities of wild animals, especially wild boars. …”
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    Article
  5. 4705

    Spatiotemporal Fluctuations and Triggers of Ebola Virus Spillover by John Paul Schmidt, Andrew W. Park, Andrew M. Kramer, Barbara A. Han, Laura W. Alexander, John M. Drake

    Published 2017-03-01
    “…Our model (area under the curve 0.80 on test data) shows that spillover intensity is highest during transitions between wet and dry seasons; overall, high seasonal intensity occurs over much of tropical Africa; and spillover intensity is greatest at high (>1,000/km2) and very low (<100/km2) human population densities compared with intermediate levels. These results suggest strong seasonality in Ebola spillover from wild reservoirs and indicate particular times and regions for targeted surveillance.…”
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  6. 4706

    Neuroanatomy of the Will by James William Hendry Sonne

    Published 2022-11-01
    “…Ethical issues involving the ability for patients to make conscious, informed choices, such as in cases of dementia or coma, abound, and the health implications of individual choice on public wellbeing are becoming increasingly important as population densities increase. Furthermore, the use of animals for drug testing presents moral dilemmas related to our concepts of consciousness, pain, and consent. …”
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    Article
  7. 4707

    Synchronous population fluctuations of forest and field voles: implications for population management by Tkadlec, E., Suchomel, J., Purchart, L., Heroldová, M., Čepelka, L., Homolka, M.

    Published 2011-10-01
    “…High population densities of field and forest voles cause economic losses by consuming crop or slowing down forest regeneration by damaging the bark of young trees. …”
    Article
  8. 4708

    A comparative approach to stabilizing mechanisms between discrete- and continuous-time consumer-resource models. by Abhyudai Singh

    Published 2022-01-01
    “…Inspired by the Nicholson-Bailey/Lotka-Volterra models in discrete-time/continuous-time, respectively, we consider host-parasitoid interactions with an arbitrary parasitoid attack rate that is a function of both the host/parasitoid population densities. Our analysis shows that a Type II functional response is stabilizing in both modeling frameworks only when combined with other mechanisms, such as mutual interference between parasitoids. …”
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  9. 4709

    Pathways of Rice Diversification across Asia by Dorian Fuller, Alison R Weisskopf, Cristina Cobo Castillo

    Published 2016-11-01
    “…More productive and intensive irrigated rice then redeveloped in Southeast Asia around 2000 years ago, supporting growing population densities and social complexity. …”
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  10. 4710

    Quantitative emission spectroscopy for superorbital reentry in expansion tube X2 by Hermann, T, Löhle, S, Bauder, U, Morgan, R, Wei, H, Fasoulas, S

    Published 2016
    “…Spatially resolved optical emission spectroscopy of the stagnation streamline in the near-infrared wavelength range from 695 to 880 nm was conducted, analyzing the flow from the side. Population densities of excited atomic states, electronic excitation temperatures, and electron and ion densities were determined by analyzing the radiative transport in the flowfield. …”
    Journal article
  11. 4711

    Global distribution data for cattle, buffaloes, horses, sheep, goats, pigs, chickens and ducks in 2010 by Gilbert, M, Nicolas, G, Cinardi, G, Van Boeckel, TP, Vanwambeke, SO, Robinson, TP

    Published 2018
    “…GLW 3 provides global population densities of cattle, buffaloes, horses, sheep, goats, pigs, chickens and ducks in each land pixel at a spatial resolution of 0.083333 decimal degrees (approximately 10 km at the equator). …”
    Journal article
  12. 4712

    How linear features alter predator movement and the functional response by McKenzie, H, Merrill, E, Spiteri, R, Lewis, M

    Published 2012
    “…This suggests that prey at low population densities are at higher risk in environments with a high seismic line density unless they learn to avoid them.…”
    Journal article
  13. 4713

    The population genetics of using homing endonuclease genes in vector and pest management. by Deredec, A, Burt, A, Godfray, H

    Published 2008
    “…HEGs may be used to decrease population fitness to drive down population densities (possibly causing local extinction) or, in disease vectors, to knock out a gene required for pathogen transmission. …”
    Journal article
  14. 4714

    Recordings of the discovery of novel food patches in common woodland birds in Wytham Woods, Oxfordshire, UK 2021 by Beck, K, Firth, J A, McMahon, K, Croft, S, Cole, E F, Sheldon, B

    Published 2022
    “…This dataset contains information about the recordings of great tits, blue tits, marsh tits and nuthatches discovering novel food patches in relation to manipulated local population densities (see 1a4dcbb3-c4fb-4bd4-acb3-d03932de9323). …”
    Dataset
  15. 4715

    Conditions for permanence in well-known biological competition models by Van Vuuren, J, Norbury, J

    Published 2000
    “…Reaction-diffusion systems are widely used to model the population densities of biological species competing for natural resources in their common habitat. …”
    Journal article
  16. 4716

    A Study of the Bacterial Population Fluctuations During Poultry Processing by Yaziz, Mohammad Ismail, Awang, Rahmat

    Published 1985
    “…A comparison of the bacterial population densities on the skin at the' start and at the end of processing showed that the levels of E. coli and coli forms increased by 231.1% and 263.1% respectively whereas the Salmonella concentrations decreased by about 9%. …”
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  17. 4717

    Analysis of Socio-Economic Factors That Influence Loss of Life in Sediment-Related Disasters by Miki Chiba, Hiromichi Furuido, Shigemitsu Shibasaki, Kazuki Haga

    Published 2022-08-01
    “…The results imply that severe losses occurred under various topographical and socio-economic conditions, such as in urban areas with high population densities and in mountainous areas with increasing depopulation. …”
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  18. 4718

    Stochastic Analysis of Predator–Prey Models under Combined Gaussian and Poisson White Noise via Stochastic Averaging Method by Wantao Jia, Yong Xu, Dongxi Li, Rongchun Hu

    Published 2021-09-01
    “…The stochastic averaging method is generalized to compute the statistical responses described by stationary probability density functions (PDFs) and moments for population densities in the ecosystems using a perturbation technique. …”
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  19. 4719

    The positive effects of the higher education expansion policy on urban innovation in China by Qinghua Zhang, Yuhang Chen, Yilin Zhong, Junhao Zhong

    Published 2024-01-01
    “…The results show that: (1) The higher education expansion policy significantly promotes urban innovation; (2) the policy promotes human capital expansion and strengthens government financial support, thereby significantly fostering urban innovation; (3) the impact of the policy varies across cities with different geographic locations, population densities and levels of marketization. Therefore, the findings of this paper provide empirical evidence that higher education expansion policy stimulates urban innovation. …”
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  20. 4720

    Unexpected plasticity in the life cycle of Trypanosoma brucei by Sarah Schuster, Jaime Lisack, Ines Subota, Henriette Zimmermann, Christian Reuter, Tobias Mueller, Brooke Morriswood, Markus Engstler

    Published 2021-08-01
    “…In the mammalian host’s circulation, proliferating slender stage cells differentiate into cell cycle-arrested stumpy stage cells when they reach high population densities. This stage transition is thought to fulfil two main functions: first, it auto-regulates the parasite load in the host; second, the stumpy stage is regarded as the only stage capable of successful vector transmission. …”
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