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676 results for “population density”
Fig. 7 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 7. Box-plots showing means and standard deviations of pH (a) conductivity (b) and temperature (c) from the São Vicente II cave stream in the dry seasons of 1999, 2000 and 2001 (circle and asterisk represent outliers).
Fig. 3 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 3. Monthly rainfall recorded in the years of 1999, 2000 and 2001. Source: INMET, Posse municipality, Goiás State, central Brazil.
Fig. 5 in Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Fig. 5. Biplot resulting from Principal Component Analysis with seven variables. Dark circles represent sampling units.
Fig. 2 in A review of Sciurus Group studies on the red squirrel (Sciurus vulgaris): presence, population density and colour phases in Lombardy (Italy)
Fig. 2 - Fur colour polymorphism in Sciurus vulgaris. Collection of the Museum of Natural History of Milan MSNM. (Photo by Carlo Biancardi).
Fig. 1 - A in A review of Sciurus Group studies on the red squirrel (Sciurus vulgaris): presence, population density and colour phases in Lombardy (Italy)
Fig. 1 - A moment of the fieldwork in Luinese. From the left: Gianni Schiroli, Andrea Viganò, Luigi Cagnolaro e Laura Rinetti. (Photo by Carlo Biancardi).
Fig. 4 in A review of Sciurus Group studies on the red squirrel (Sciurus vulgaris): presence, population density and colour phases in Lombardy (Italy)
Fig. 4 - Observations of red and dark phases per altitudinal range. The dark phase became prevalent, with respect to the mean colour phase ratio, above 800 m a.s.l.
Рис. 1. Δинамика чисΛенности меΛких мΛекопитающих в Цасучейском бору: 1 — суммарная чисΛенность (особей / 100 циΛинΑро-суток); Αоминирующие виΑы: 2 — забайкаΛьский хомячок, 3 — бурозубка тунΑряная, 4 — бурозубка крошечная, 5 — поΛёвка монгоΛьская, 6 — поΛёвка РаΑΑе, 7 — красная поΛёвка; A — остепнённый сосняк, B — первичная гарь, С — старая гарь, D — повторная гарь; стреΛка указывает время прохожΑения пожара. Ось X — гг., ось Y — чисΛенность Fig. 1. Population dynamics of small mammals in the Tsasucheysky Pine Forest: 1 — total abundance (individuals / 100 cylinder-days); dominant species: 2 — Cricetulus pseudogriseus, 3 — Sorex tundrensis, 4 — S. minutissimus, 5 — Alexandromys mongolicus, 6 — Lasiopodomys raddei, 7 — Myodes rutilus; A — steppe pine forest, B — primary burns site, С — old burns site; D — repeated burns site; the arrow indicates the time of the fire. The X-axis shows years; the Y-axis shows population density in Population dynamics of small mammals after spring fires in steppe pine forest
Рис. 1. Δинамика чисΛенности меΛких мΛекопитающих в Цасучейском бору: 1 — суммарная чисΛенность (особей / 100 циΛинΑро-суток); Αоминирующие виΑы: 2 — забайкаΛьский хомячок, 3 — бурозубка тунΑряная, 4 — бурозубка крошечная, 5 — поΛёвка монгоΛьская, 6 — поΛёвка РаΑΑе, 7 — красная поΛёвка; A — остепнённый сосняк, B — первичная гарь, С — старая гарь, D — повторная гарь; стреΛка указывает время прохожΑения пожара. Ось X — гг., ось Y — чисΛенность Fig. 1. Population dynamics of small mammals in the Tsasucheysky Pine Forest: 1 — total abundance (individuals / 100 cylinder-days); dominant species: 2 — Cricetulus pseudogriseus, 3 — Sorex tundrensis, 4 — S. minutissimus, 5 — Alexandromys mongolicus, 6 — Lasiopodomys raddei, 7 — Myodes rutilus; A — steppe pine forest, B — primary burns site, С — old burns site; D — repeated burns site; the arrow indicates the time of the fire. The X-axis shows years; the Y-axis shows population density
РИС. 1. Карта района исследований с укаЗанием станций отбора проб (А) и плотности поселениЯ R. venosa (ЭкЗ./м²). FIG. 1. Map of the study area with indication the sampling sites and the population density (A) of R. venosa (specimens/m²). in Rapana venosa (Valenciennes, 1846) Залива ДонуЗлав и прилегаюЩей акватории Чёрного морЯ
РИС. 1. Карта района исследований с укаЗанием станций отбора проб (А) и плотности поселениЯ R. venosa (ЭкЗ./м²). FIG. 1. Map of the study area with indication the sampling sites and the population density (A) of R. venosa (specimens/m²).
Figure 4 in Population density and diet type interactively affect individual growth of an omnivorous soil-dwelling insect (Anomala cuprea, Coleoptera: Scarabaeidae)
Figure 4. (a) total carbon (%) in the diet before the experiment and (b) after the experiment, and (c) total nitrogen (%) in the diet before the experiment and (d) after the experiment in the two diets and three population densities.
Figure 2 in Population density and diet type interactively affect individual growth of an omnivorous soil-dwelling insect (Anomala cuprea, Coleoptera: Scarabaeidae)
Figure 2. Effects of diet type and population density on mean fresh weight of a larva. Error bars indicate standard error. See Tab. 2 for details of statistical results.
Figure 1 in Population density and diet type interactively affect individual growth of an omnivorous soil-dwelling insect (Anomala cuprea, Coleoptera: Scarabaeidae)
Figure 1. Effects of diet type and population density on larval mortality rate. Error bars indicate standard error. See Tab. 1 for details of statistical results.
Figure 4 in Seasonal composition and population density of zooplankton in Lake Karaboğaz from the Kızılırmak Delta (Samsun, Turkey)
Figure 4. Seasonal distribution of the diversity in zooplankton; relationship between diversity, temperature, chlorophyll a, and salinity.
Fig. 3 in Factors Affecting Thrips (Thysanoptera: Thripidae) Population Densities in Watermelon Crops
Fig. 3. Daily average (mean ± standard error) of air temperature, wind speed, photoperiod, and rain during 2 seasons of watermelon cultivation.
Fig. 2 in Factors Affecting Thrips (Thysanoptera: Thripidae) Population Densities in Watermelon Crops
Fig. 2. Frankliniella schultzei and predator densities (mean ± standard error) in 2 seasons of watermelon cultivation. *When a pair of histograms is topped by the same letter, the average densities of this arthropod did not differ in the 2 seasons of cultivation according to the F test and P <0.05.
Fig. 1 in Factors Affecting Thrips (Thysanoptera: Thripidae) Population Densities in Watermelon Crops
Fig. 1. Frankliniella schultzei density depending on the position of the leaf on the branch in watermelon plants in vegetative (A), flowering (B), and (C) fruiting stages. The more apical leaf branch was considered number 1, the second number 2, and so on.
Resources for "BMF CP 95: Temperature and population density as predictors of embeddedness and hierarchy cultural values "
<p><span>The current study is conducted to examine the following research questions:</span></p> <ul> <li><span>How are the temperature and population density associated with the countries’ cultural values of embeddedness and hierarchy cultural values?</span></li> </ul>
Greater reproductive assurance of asexual plant compared to sexual relative in a low density sympatric population – experimental evidence for pollen limitation
<p class="western"><span><span><span><span><span><span><span>This dataset contains data from a common garden experiment described in the paper: "</span></span></span></span></span></span><span><span><span><span>Mráz P</span><span><span>, Mrázová V. </span></span></span><span><span><span>2021. </span></span></span><span><span><span>Greater</span></span></span><span><span><span> reproductive assurance of asexual plant compared to sexual relative in a low density sympatric population – experimental evidence for pollen limitation. </span></span></span><i><span><span>Journal of Evolutionary Ecology</span></span></i> </span></span><span><span><span><span><span><span>". </span></span></span></span></span></span></span></p> <p class="western"><span><span><span>We compared the level and stability of reproductive assurance between sexual self-incompatible and asexual autonomously apomictic plants of <i>Hieracium alpinum</i> (Asteraceae) cultivated in a sympatric low-density population with two levels of spatial clumping of sexual plants. </span></span></span><span><span><span>Overall, we found that the realized seed set (i.e. proportion of well developed seeds per capitulum) of asexuals was ca. 3-times greater than that of sexuals (83% <i>versus</i> 27%), while the variance of this trait expressed as coefficient of variation was ca. 4-times smaller in asexuals compared to sexuals (19% <i>versus </i><span>83%)</span>. Solitary sexual plants had more than 2-times lower realized seed set when compared to clumps composed of two spatially close (20-30 cm) sexual plants (13% <i>versus</i> 34%). </span></span></span><span><span><span>Our study provides experimental evidence for benefit of uniparental reproduction of asexuals in a sympatric situation when the availability of mates is limited. This, together with unpredictability of pollinator environment could provide autonomous apomicts with an ultimate demographic superiority during colonization reflected in geographical parthenogenesis observed in this species. </span></span></span></p>
Figure 3 in Effects of Aculus schlechtendali (Acari: Eriophyidae) population densities on Golden Delicious apple production
Figure 3 Yearly cumulative predatory mite densities (CMD-phytoseiids) registered on Golden Delicious leaves in untreated apple trees during three subsequent years.
Figure 1 in Effects of Aculus schlechtendali (Acari: Eriophyidae) population densities on Golden Delicious apple production
Figure 1 Mean monthly temperature and rainfall in the experimental site in the three years considered.
Figure 2 in Effects of Aculus schlechtendali (Acari: Eriophyidae) population densities on Golden Delicious apple production
Figure 2 Seasonal Apple Rust Mite densities (ARM per leaf)(lines) and Cumulative Mite-Days (CMD)(dots) in untreated Golden Delicious apple trees during three subsequent years.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.