Global Mortality Attributable to Aircraft Cruise Emissions by Barrett, Steven R. H., Britter, Rex E., Waitz, Ian A.

“…For example, we describe how strong zonal westerly winds aloft, the mean meridional circulation around 30−60°N, interaction of aircraft-attributable aerosol precursors with background ammonia, and high population densities in combination give rise to an estimated ~3500 premature mortalities per year in China and India combined, despite their relatively small current share of aircraft emissions. …”
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KAJIAN PERKEMBANGAN WILAYAH DAN PENILAIAN RISIKO LINGKUNGAN DI PERKOTAAN BANJARMASIN by , AHMAD ZAKY MAULANA, , Dr. Luthfi Muta�ali, S.Si. MSP.

“…Analysis correlation of indicator urban development rate variables with environmental risk variables showed that building densities has a very strong correlation with the building areas, road intensities and population densities, proved by the correlation value is greater than 0.8. …”

Biocontrol-based strategies for improving soil health and managing plant-parasitic nematodes in coffee production by Kanan K. Saikai, Kanan K. Saikai, Celestine Oduori, Celestine Oduori, Evans Situma, Simon Njoroge, Ruth Murunde, John W. Kimenju, Douglas W. Miano, Solveig Haukeland, Solveig Haukeland, Danny Coyne

“…Both fungal biocontrol agents were detected endophytically infecting roots and recovered from soil but not until six months after initial applications. The population densities of M. hapla had significantly declined in roots of treated trees 12 months after the initial application, although soil nematode density data were similar across treatments. …”
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Prevalence and Molecular Diversity of Plant-Parasitic Nematodes of Yam (<i>Dioscorea</i> spp.) in China, with Focus on <i>Merlinius</i> spp. by Sulaiman Abdulsalam, Huan Peng, Yingjuan Yao, Linjuan Fan, Ru Jiang, Hudie Shao, Yingdong Zhang, Wenkun Huang, Ling’an Kong, Deliang Peng

“…The five most prominent species on the yam rhizosphere according to mean population densities were <i>Pratylenchus coffeae</i> (291/individuals), <i>Meloidogyne</i> (262/individuals), <i>Rotylenchulus reniformis</i> (225/individuals), <i>Merlinius</i> (224/individuals), and <i>Helicotylenchus dihystera</i> (171/individuals). …”
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Freeing land from biofuel production through microalgal cultivation in the Neotropical region by Diego F Correa, Hawthorne L Beyer, Hugh P Possingham, John García-Ulloa, Jaboury Ghazoul, Peer M Schenk

“…In the present study, the most suitable areas for siting microalgae production farms to fulfill 30% of future transport energy demands were determined within four Neotropical countries with high population densities and high importance for agricultural expansion and biodiversity conservation globally (Colombia, Ecuador, Panama, and Venezuela). …”
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Forest dieback in a protected area triggers the return of the primeval forest specialist Peltis grossa (Coleoptera, Trogossitidae) by Annika Busse, Lukas Cizek, Pavla Čížková, Lukas Drag, Vladimir Dvorak, Jiří Foit, Marco Heurich, Pavel Hubený, Josef Kašák, Florian Kittler, Petr Kozel, Ludwig Lettenmaier, Ludwig Nigl, Jiří Procházka, Julia Rothacher, Cornelia Straubinger, Simon Thorn, Jörg Müller

“…Third, salvage logging significantly reduces the population densities of forest specialists by reducing habitat amount.…”
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Evolving dynamics of insect frass fertilizer for sustainable nematode management and potato production by Emmanuel O. Anedo, Emmanuel O. Anedo, Emmanuel O. Anedo, Dennis Beesigamukama, Benson Mochoge, Nicholas K. Korir, Solveig Haukeland, Solveig Haukeland, Xavier Cheseto, Sevgan Subramanian, Segenet Kelemu, Chrysantus M. Tanga

“…Data were collected on potato growth characteristics, PCN population densities, and soil chemical properties for two growing cycles. …”
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Global rangeland production systems and livelihoods at threat under climate change and variability by C M Godde, R B Boone, A J Ash, K Waha, L L Sloat, P K Thornton, M Herrero

“…Additionally, the rangeland communities currently the most vulnerable (here, with the lowest livestock productivities and economic development levels and with the highest projected increases in human population densities) are projected to also experience the most damaging vegetation trends for livestock production. …”
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First record and impact of the crown-of-thorns starfish, Acanthaster planci (Spinulosida: Acanthasteridae) on corals of Malpelo Island, Colombian Pacific by Krupskaya Narváez, Fernando A Zapata

“…In the Tropical Eastern Pacific (TEP) A. planci occurs at low population densities; it has been significantly abundant only in Panama and Cocos Island. …”
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Habitat Impacts on the Golden Eagle’s Foraging Ecology and Nest Site Selection in Poland by Marian Stój, Robert Kruszyk, Dorota Zawadzka, Grzegorz Zawadzki

“…The greatest threat to Poland’s GE population is the reduction in semi-open areas with low human activity and low human population densities.…”
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‘Animals under wheels’: Wildlife roadkill data collection by citizen scientists as a part of their nature recording activities by Kristijn R. R. Swinnen, Annelies Jacobs, Katja Claus, Sanne Ruyts, Diemer Vercayie, Jorg Lambrechts, Marc Herremans

“…Mitigation measures preventing roadkill could have had an effect on this, but decrease in population densities was likely to (partially) influence this result. …”
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Distribution and Molecular Identification of <i>Culex pipiens</i> and <i>Culex tritaeniorhynchus</i> as Potential Vectors of Rift Valley Fever Virus in Jazan, Saudi Arabia by Saleh Eifan, Atif Hanif, Islam Nour, Sultan Alqahtani, Zaki M. Eisa, Ommer Dafalla, Alain Kohl

“…Significant variations in vector population densities were observed in different districts. …”
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Modelling the Dynamics of Outbreak Species: The Case of <i>Ditrupa arietina</i> (O.F. Müller), Gulf of Lions, NW Mediterranean Sea by Jennifer Coston-Guarini, François Charles, Jean-Marc Guarini

“…Two extrapolations were made: (1) local population dynamics were simulated over 180 years using North Atlantic Oscillation indices to force recruitment variability and (2) steady-state population densities over the Gulf of Lions were calculated from a connectivity matrix in a metapopulation. …”
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A multi-method approach for assessing the distribution of a rare, burrowing North American crayfish species by Kathleen B. Quebedeaux, Christopher A. Taylor, Amanda N. Curtis, Eric R. Larson

“…Primary burrowing crayfishes face high extinction risk, but are challenging to study, manage, and conserve due to their difficult-to-sample habitat (i.e., terrestrial burrows) and low population densities. We apply here a variety of methods to characterize the distribution, habitat associations, and conservation status of the Boston Mountains Crayfish Cambarus causeyi (Reimer, 1966), an endemic burrowing crayfish found only in the Ozark Mountains of Arkansas, United States. …”
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Carbon monoxide and nitrogen dioxide patterns associated with changes in energy use during the COVID-19 pandemic in Kenya by Cohen Ang'u, Nzioka John Muthama, Mwanthi Alexander Mutuku, Mutembei Henry M'IKiugu

“…Nairobi county represented an urban setting, while the Vihiga and Tana River counties represented rural areas with high and low population densities, respectively. The CO surface concentrations in Nairobi and Vihiga county significantly correlated with the COVID-19 cases, with both counties portraying negative correlations, i.e., −0.59 (<i>P</i>-value: 0.008) and −0.45 (<i>P</i>-value: 0.05), respectively. …”
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The Impact of Herbicide Application and Defoliation on Barley Grass (<em>Hordeum murinum</em> subsp. <em>glaucum</em>) Management in Mixed Pasture Legumes by Jane E. Kelly, Allison J. Chambers, Paul A. Weston, William B. Brown, Wayne A. Robinson, John C. Broster, Leslie A. Weston

“…Impact of defoliation timing and frequency on barley grass seedlings was also evaluated at various population densities, highlighting the efficacy of repeated post-inflorescence defoliations in reducing plant survival and seed production. …”
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Monkeypox: we cannot afford to ignore yet another warning by Diana J. Bell, Andrew A. Cunningham

“…This has occurred at a time when the majority of people worldwide live in high population densities in cities and when connectivity across the world has never been higher, both of which facilitate the emergence and spread of infectious diseases. …”
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Geobiology of marine magnetotactic bacteria by Simmons, Sheri Lynn

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Simulating the dynamics of dispersal and dispersal ability in fragmented populations with mate-finding Allee effects by Schauf, Andrew J., Jones, Matthew F., Oh, Poong

“…Mate finding is modeled in accord with the assumption that reproduction is based on random encounters between pairs of individuals, so that the frequency of interbreeding between two subpopulations is proportional to the product of local population densities of each. The resulting nonlinear growth term produces an Allee effect, whereby reproduction rates are lower in sparsely populated areas; the distribution of dispersal rates that evolves is then highly dependent upon the population's initial spatial distribution. …”
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The rise of hyperabundant native generalists threatens both humans and nature by Jonathan H. Moore, Luke Gibson, Zachary Amir, Wirong Chanthorn, Abdul Hamid Ahmad, Patrick A. Jansen, Calebe P. Mendes, Manabu Onuma, Carlos A. Peres, Matthew Scott Luskin

“…Compared to intact interior forests, population densities in degraded forests were 148% and 87% higher for wild boar and macaques, respectively. …”
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