Florida Bromeliad Weevil (no official common name), Metamasius mosieri Barber (Insecta: Coleoptera: Curculionidae: Dryophthorinae) by Barbra Larson, J. Howard Frank, Olan Ray Creel

“… The Florida bromeliad weevil is an occasional and minor pest on ornamental bromeliads and occurs at very low population densities in its natural habitat. It should not be confused with the Mexican bromeliad weevil, Metamasius callizona, which is currently attacking five species of native bromeliads in 16 counties and will likely destroy populations of six additional species of already-threatened or endangered bromeliads if not brought under control. …”
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A Late Period Caranqui Chiefdom in the Northern Highlands of Ecuador: by Elizabeth J. Currie

“…The fieldwork has established the first unequivocal evidence for the presence of intensive raised field agriculture (camellones) here, capable of sustaining the high population densities postulated for the region during this period. …”
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Urban Structures and Travel Behaviour by Petter Naess

“…The distance from the residence to the downtown area is a key factor influencing the accessibility to a number of facility types. Population densities at a local scale as well as for the city as a whole are also important to the amount of travel and the use of cars. …”
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The movement shortfall in bird conservation: accounting for nomadic, dispersive and irruptive species by Cottee-Jones, H, Matthews, T, Whittaker, R

“…Despite 100 years of ringing effort, the movement characteristics of these species are still poorly known, as the irregularity of their movements and low human population densities in parts of their range impede traditional methods. …”

A Flux-Limited Model for Glioma Patterning with Hypoxia-Induced Angiogenesis by Pawan Kumar, Christina Surulescu

“…The bottom-up model deduction eventually leads to a system of reaction–diffusion–taxis equations for glioma and endothelial cell population densities, of which the former infers flux limitation both in the self-diffusion and taxis terms. …”
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RanBox: anomaly detection in the copula space by Tommaso Dorigo, Martina Fumanelli, Chiara Maccani, Marija Mojsovska, Giles C. Strong, Bruno Scarpa

“…Abstract The unsupervised search for overdense regions in high-dimensional feature spaces, where locally high population densities may be associated with anomalous contaminations to an otherwise more uniform population, is of relevance to applications ranging from fundamental research to industrial use cases. …”
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Unusual developing sites of dengue vectors and potential epidemiological implications by Dieng, H., Saifur, R.G.M., Ahmad, A.H., Salmah, M.R.C., Aziz, A.T., Satho, T., Miake, F., Jaal, Z., AbuBakar, Sazaly, Morales, R.E.

“…Conclusions:It can be concluded that both breeding patterns can increase contact with hosts (humans and birds) and presumably population densities of Ae. albopictus and Ae. aegyp…”
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Understanding the Ecosystem Carrying Capacity for <i>Romanichthys valsanicola</i>, a Critically Endangered Freshwater Fish Endemic to Romania, with Considerations upon Trophic Offe... by Laurenţiu Burlacu, Gyorgy Deak, Mădălina Boboc, Marius Raischi, Elena Holban, Isabela Sadîca, Abdulhusein Jawdhari

“…Both trophic availability and populational density present encouragingly high values for the sculpin perch in the Valsan River, indicating that the natural habitat could host a considerably higher number of individuals.…”
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Connecting the Smart Village: A Switch towards Smart and Sustainable Rural-Urban Linkages in Spain by Cristina García Fernández, Daniël Peek

“…Cities, in turn, face their own set of challenges, such as contamination, natural resources exploitation, and high population densities. Local governments have been embracing the Smart City approach to accomplish sustainable development, which might also benefit the revitalization of rural areas if conducted through a tailored regional approach. …”
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Reassessing the concept of the ‘Neolithic’ in the Jomon of Western Japan by Simon Kaner, Takeshi Ishikawa

“…Recent investigations in Kyushu and Western Honshu are leading to a re-assessment of the nature of Jomon culture and society in this region, traditionally considered to have ‘lagged behind’ the more developed societies of the eastern part of the archipelago, expressed in part through much lower population densities.…”
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Pest status of the leafhopper Empoasca dolichi Paoli on groundnut (Arachis hypogaea L.) in the Zaria area of northern Nigeria by Elizabeth Agbenu Egwurube, Michael Ogunleke Ogunlana, Michael Chidozie Dike, Isa Onu

“…There was an inverse and highly significant relationship between the mean kernel yield and the Empoasca damage at the different growth stages of the plant. When natural population densities were plotted against economic injury level (EIL), the densities did not reach the EIL throughout the groundnut growing seasons. …”
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Asymptotic behaviour of solutions to abstract logistic equations. by Dyson, J, Villella-Bressan, R, Webb, G

“…Our results are applicable to models of structured population dynamics in which the state space consists of population densities with respect to the structure variables. …”

Population dynamics of aquatic snails in Pampulha reservoir by J. R. Freitas, L. C. Bedê, P. de Marco Júnior, L. A. Rocha, M. B. L. Santos

“…An attempt was made to determine more accurately the density of molluskan populations in the Pampulha reservoir, using the quadrate method, intending to detect the fluctuation of the populations density, the habitat conditions and the possible competitive interactions among Biomphalaria tenagophila, Melanoides tuberculata, Pomacea haustrum and Biomphalaria glabrata, through the analysis of populational parameters. …”
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2019–2020 Florida Citrus Production Guide: Nematodes by Larry W. Duncan, Joe W. Noling, Renato N. Inserra

“… Integrated pest management (IPM) for nematodes requires (1) determining whether pathogenic nematodes are present within the grove; (2) determining whether population densities of some nematodes are high enough to cause economic loss; and (3) selecting a profitable management option. …”
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Factors conditioning the habitat and the density of Biomphalaria tenagophila (Orbigny, 1835) in an isolated schistosomiasis focus in Rio de Janeiro city by Darcilio F. Baptista, Pedro Jurberg

“…The first one (1985-86) involved the sampling of Biomphalaria tenegophila in two areas to determine its relative populational densities. The results showed that the populations presented similar densities and dynamics. …”
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Study on the Interference of a 24GHz UWB Radar toward EESS by Shunji Miyahara

“…As an area under study, the area (306[m2]) with highest population densities in Tokyo metropolitan is chosen. It is assumed that the satellite and radiometer are GCOM-W1and AMSR2, respectively. …”
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2018–2019 Florida Citrus Production Guide: Nematodes by Larry W. Duncan, Joseph W. Noling, Renato N. Inserra

“… Integrated pest management (IPM) for nematodes requires: 1) determining whether pathogenic nematodes are present within the grove; 2) determining whether population densities of some nematodes are high enough to cause economic loss; and 3) selecting a profitable management option. …”
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The Socioecology of Territory Size and a "Work-Around" Hypothesis for the Adoption of Farming. by Jacob Freeman

“…However, the higher density of food in an agroecosystem allows farmers, on average, to live at much higher population densities than human foragers. These macroecological patterns are consistent with a "work-around hypothesis" for the adoption of farming. …”
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Settling down at Ceibal and Cuello: variation in the transition to sedentism across the Maya lowlands by Jessica MacLellan

“…At the end of this period, increased population densities contributed to a shift to more exclusionary rituals and political strategies throughout the lowlands.…”
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Study of the effect of dicumyl peroxide on morphological and physical properties of foam injection molded poly(lactic acid)/poly(butylene succinate) blends by J. F. Campuzano, I. D. Lopez

“…The best blend results were obtained with 0.1 wt% of peroxide, reaching impact strength values similar to those of neat-foamed PBS and cell population densities higher than neat PLA. Peroxide contents higher than 0.4 wt% tend to decrease the performance of the blend due to excessive crosslinking.…”
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