Showing 381 - 400 results of 657 for search '"extinction"', query time: 0.04s Refine Results
  1. 381

    Macromycete fungal diversity in the Andean Amazonian rainforest of the Sacta Valley, Cochabamba, Bolivia by Mario Coca Morante, Alejandro Coca-Salazar, Olga Herrera Fernández, Casimiro Mendoza Bautista

    Published 2023-09-01
    “…Macromycetes are some of the organisms facing extinction owing to the alteration of which the natural tropical rainforests have been subjected. …”
    Get full text
    Article
  2. 382

    Models to Assess the Effects of Nonsmooth Control and Stochastic Perturbation on Pest Control: A Pest-Natural-Enemy Ecosystem by Xuewen Tan, Wenjie Qin, Guangyao Tang, Changcheng Xiang, Xinzhi Liu

    Published 2019-01-01
    “…Moreover a sufficient condition for the extinction of the pest population with probability-1 is given. …”
    Get full text
    Article
  3. 383

    Diversity at Landscape Level to Increase Resilience. A Review by Benson, Turyasingura, Ayiga, Natal, Majaliwa, Mwanjalolo

    Published 2022
    “…This has resulted in the extinction of species, droughts, and price fluctuations in agricultural products. …”
    Get full text
    Article
  4. 384

    Comparative analysis of biodiversity, physiology, and anatomical adaptations in riparian flora exposed to industrial pollution stress by Mansour K. Gatasheh, Toqeer Abbas, Shifa shaffique, Sang-Mo Kang, In-Jung Lee, Anis Ali shah

    Published 2025-01-01
    “…Abstract Anthropogenic activities such as industrial pollution of water bodies possess threat to floras leading to extinction and endangerment. This study investigates the impact of industrial pollution on vegetation along River Chenab and its associated drains. …”
    Get full text
    Article
  5. 385

    Study of information needs of students in the field of environmental policy by I. D. Porfirieva

    Published 2018-12-01
    “…The data obtained allowed to substantiate the conclusions about the need for fundamental changes in educational programs, toughening legal regulations in the field of environmental management as a mechanism to counter the extinction and death of civilization.…”
    Get full text
    Article
  6. 386

    Bat population dynamics: multilevel model based on individuals' energetics by Paula Federico, Dobromir T. Dimitrov, Gary F. McCracken

    Published 2008-09-01
    “…A structured population model based on extended McKendrick-von Foerster partial differential equations integrates those individual dynamics and provides insight into possible regulatory mechanisms of population size as well as conditions of population survival and extinction. Though parameterized for a specific bat species, all modeling components can be modified to investigate other bats with similar life histories. …”
    Get full text
    Article
  7. 387

    A single changing hypernetwork to represent (social-)ecological dynamics by Gaucherel, Cédric, Cosme, Maximilian, Noûs, Camille, Pommereau, Franck

    Published 2024-10-01
    “…Moreover, we highlight that any ecosystem hypernetwork exhibits a changing topology summarizing its long term dynamics (e.g., species extinction/invasion, pollutant or human arrival/migration). …”
    Get full text
    Article
  8. 388

    Évolution des systèmes de reproduction chez les plantes face aux changements globaux by Cheptou, Pierre-Olivier

    Published 2024-09-01
    “…Beyond species extinction, it is likely that global change modifies selection regimes in natural populations. …”
    Get full text
    Article
  9. 389

    Modeling sub-exponential epidemic growth dynamics through unobserved individual heterogeneity: a frailty model approach by Ping Yan, Gerardo Chowell

    Published 2024-10-01
    “…This framework enhances our understanding of how individual differences affect key epidemic metrics, including reproduction numbers, epidemic size, likelihood of stochastic extinction, impact of public health interventions, and accuracy of disease forecasts. …”
    Get full text
    Article
  10. 390

    Assessing the Role of Particles in Radiative Heat Transfer during Oxy-Combustion of Coal and Biomass Blends by Gautham Krishnamoorthy, Caitlyn Wolf

    Published 2015-01-01
    “…In addition, particle swelling and the diameter intervals also influenced the incident radiative fluxes primarily by impacting the particle extinction coefficients. This study highlights the necessity for careful selection of particle radiative property, and diameter interval parameters and the need for fuel fragmentation models to adequately predict the fly ash PSD in CFD simulations of coal/biomass combustion.…”
    Get full text
    Article
  11. 391

    Squaraine Planar-Heterojunction Solar Cells by Bin Fan, Ylenia Maniglio, Marina Simeunovic, Simon Kuster, Thomas Geiger, Roland Hany, Frank Nüesch

    Published 2009-01-01
    “…Two squaraine derivatives with extraordinarily high extinction coefficients are used as electron donors in bilayer heterojunctions with fullerene C60 as electron acceptor. …”
    Get full text
    Article
  12. 392

    Comparative Analysis of Rhizosphere Fungal Communities in Korean Fir Trees by Young Min Ko, Geun-Hye Gang, Dae Ho Jung, Youn-Sig Kwak

    Published 2024-09-01
    “…Efforts to prevent the extinction of the Korean fir are underway, with a predominant focus on abiotic factors contributing to its decline. …”
    Get full text
    Article
  13. 393

    Inferring the dynamics of diversification: a coalescent approach. by Hélène Morlon, Matthew D Potts, Joshua B Plotkin

    Published 2010-09-01
    “…Under this hypothesis, speciation rates decay over time and biodiversity eventually saturates, with new species emerging only when others are driven to extinction. This view of macro-evolution contradicts an alternative hypothesis that biodiversity is unbounded, with species ever accumulating as they find new niches to occupy. …”
    Get full text
    Article
  14. 394

    Distribution and population growth of Eurasian beaver (Castor fiber Linnaeus, 1758) in Bosnia and Herzegovina 10 years after reintroduction by Igor Trbojević, Tijana Trbojević

    Published 2016-12-01
    “…The reason that led to the complete extinction of Eurasian beaver in Bosnia and Herzegovina is the same as in Europe - excessive hunting. …”
    Get full text
    Article
  15. 395

    Modeling The Fate of Sumatran Elephants in Bukit Tigapuluh Indonesia: Research Needs & Implications for Population Management by Alexander Markus Moßbrucker, Muhammad Ali Imron, Satyawan Pudyatmoko, Peter-Hinrich Pratje, Sumardi Sumardi

    Published 2016-01-01
    “…This study applies PVA to a local population of Sumatran elephants roaming the Bukit Tigapuluh landscape, Sumatra, with the main goal to explore the impact of pre-selected conservation measures and population scenarios on both population growth rate and extinction probability. Sensitivity testing revealed considerable parameter uncertainties that should be addressed by targeted research projects in order to improve the predictive power of the baseline population model. …”
    Get full text
    Article
  16. 396

    Fabrication and Characterization of Nickel Chloride Doped PMMA Films by Wasan A. Al-Taa’y, Saad F. Oboudi, Emad Yousif, Mohammed Abdul Nabi, Rahimi M. Yusop, Darfizzi Derawi

    Published 2015-01-01
    “…The effect of doping on the optical constants of films such as refractive index, extinction coefficient, real and imaginary parts of dielectric constant, optical conductivity, and skin depth has been reported. …”
    Get full text
    Article
  17. 397

    Principle of Limiting Factors-Driven Piecewise Population Growth Model I: Qualitative Exploration and Study Cases on Continuous-Time Dynamics by Héctor A. Echavarria-Heras, Cecilia Leal-Ramírez, Guillermo Gómez, Elia Montiel-Arzate

    Published 2021-01-01
    “…Possible phase configurations include regimes with multiple stable equilibria, sigmoidal growth, extinction, or stationarity. Here, we also outline that the associating discrete-time piecewise model composes the logistic map applied over a particular region of the phase configuration. …”
    Get full text
    Article
  18. 398

    VO2 based polarization-independent dual-wavelength plasmonic switches using U and C shaped nanostructures by Kirti Dalal, Yashna Sharma

    Published 2025-02-01
    “…Finite difference time domain (FDTD) modelling shows that the proposed switches are capable of achieving a high extinction ratio of ~ 20 dB at two wavelengths—1560 nm and 2130 nm—for incident light with any polarization angle. …”
    Get full text
    Article
  19. 399

    Biodiversity and Soil Characterization of Ancestral Domain of the Tagbanua Tribe in Aborlan, Palawan, Philippines by Reynald M. Quilang

    Published 2024-12-01
    “…The survival of these birds is threatened by extinction due to habitat loss. This observation emphasized the importance of the ancestral domain as a refuge for these endemic species and conservation priority areas.…”
    Get full text
    Article
  20. 400

    Global dynamics for two-species competition in patchy environment by Kuang-Hui Lin, Yuan Lou, Chih-Wen Shih, Tze-Hung Tsai

    Published 2014-02-01
    “…It is shown that the species with largerbirth rates in both patches drives the other species to extinction, regardless of the dispersal rate. The more interesting case is when both species have the same average birth rate but each species has larger birth rate in one patch. …”
    Get full text
    Article