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370 results for “seasonal variations”
Proteinaceous Matter and Liquid Water in Fine Aerosols in Nanchang, Eastern China: Seasonal Variations, Sources, and Potential Connections
<p>DATA-JGR-A</p>
Figure 1 in Assessing structure and seasonal variations of a temperate shallow water fish assemblage through Snorkel Visual Census
Figure 1. – Model data for temperature and salinity at the two study sites during the survey period.
Figure 4 from: Mammola S, Isaia M (2018) Day–night and seasonal variations of a subterranean invertebrate community in the twilight zone. Subterranean Biology 27: 31-51. https://doi.org/10.3897/subtbiol.27.28909
Figure 4 Interaction plot showing the effect of the interaction between seasonality and the day–night cycle on the abundance of trogloxenes.
Figure 3 from: Mammola S, Isaia M (2018) Day–night and seasonal variations of a subterranean invertebrate community in the twilight zone. Subterranean Biology 27: 31-51. https://doi.org/10.3897/subtbiol.27.28909
Figure 3 Boxplots showing the difference between relative humidity values during the day (white boxes) and at night (grey boxes) in the four seasons. Significant differences are highlighted by asterisks (Signif. codes: *** p<0.001, ** p<0.01).
Figure 2 from: Mammola S, Isaia M (2018) Day–night and seasonal variations of a subterranean invertebrate community in the twilight zone. Subterranean Biology 27: 31-51. https://doi.org/10.3897/subtbiol.27.28909
Figure 2 Temperature variation in the study area. Data refer to record of temperature and relative humidity measured every 12 h (one measurement at midday and one at midnight). Top panel: annual trends of temperatures measured at the entrance (0 m; orange line) and inside the mine (10 and 20 m; purple and blue lines, respectively). Bottom panel: mean of monthly positive and negative temperature deviations at night, with respect to the daily temperature recorded during the same period.
Figure 1 from: Mammola S, Isaia M (2018) Day–night and seasonal variations of a subterranean invertebrate community in the twilight zone. Subterranean Biology 27: 31-51. https://doi.org/10.3897/subtbiol.27.28909
Figure 1 Map of the study area and groundplan of the Seinera mine, with indication of sampling plots and dataloggers.
Figure 5 from: Mammola S, Isaia M (2018) Day–night and seasonal variations of a subterranean invertebrate community in the twilight zone. Subterranean Biology 27: 31-51. https://doi.org/10.3897/subtbiol.27.28909
Figure 5 Predicted values (filled lines) and 95% confidence intervals (dotted lines) of the effect of distance from the main entrance in interaction with the sampling season on the abundance of troglophiles derived from the generalized linear mixed model (GLMM). Day and night trends are shown.
Figure 3 in Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem
Figure 3. The variation in total mesozooplankton abundance and temperature with respect to years (SST: sea surface temperature).
Figure 4 in Seasonal variation of small mammals in the diet of the barn owl (Tyto alba) in the Drinos River valley, southern Albania
Figure 4. Seasonal variation in biomass (%) of small mammal species in the diet of barn owls in the Drinos valley.
0 in Seasonal variation of small mammals in the diet of the barn owl (Tyto alba) in the Drinos River valley, southern Albania
0% Autumn (F%) W nter (F%) Spr ng (F%) Summer (F%) Figure 3. Seasonal variation in frequency (%) of small mammal species in the diet of barn owls in the Drinos valley.
Fig. 1 in Seasonal Variations in the Assembly of Dung Beetles (Coleoptera: Geotrupidae and Scarabaeidae) Attracted to Macaque Feces in Temperate Forests in Japan
Fig. 1. Map of the study sites in Japan.
Sample-specific data from "The Influence of Seasonal Variation in Wild Pig Diet on Impacts to a Subtropical Agroecosystem" published in Ecosphere
Open the record for dataset details and reuse information.
Monsoon-driven intra-seasonal variations in the thermal regime of a Himalayan proglacial lake
Open the record for dataset details and reuse information.
Figure 1 in Foraging mode of Australolacerta rupicola (FitzSimons, 1933) (Sauria: Lacertidae): evidence of seasonal variation in an extremely active predator?
Figure 1. Typical microhabitat of Australolacerta rupicola in Sample Plot 1. Credit: S. Kirchhof.
Figure 3 in Foraging mode of Australolacerta rupicola (FitzSimons, 1933) (Sauria: Lacertidae): evidence of seasonal variation in an extremely active predator?
Figure 3. Typical microhabitat of Australolacerta rupicola in Sample Plot 3. Credit: S. Kirchhof.
Figure 2 in Foraging mode of Australolacerta rupicola (FitzSimons, 1933) (Sauria: Lacertidae): evidence of seasonal variation in an extremely active predator?
Figure 2. Typical microhabitat of Australolacerta rupicola in Sample Plot 2. Credit: S. Kirchhof.
Seasonal variation in the strength of interference competition among headwater stream predators
<p>1. Vertebrate communities in headwater streams are assumed to be regulated through competitive and predatory interactions. Although documented predation is rare, studies regularly report competitive dominance by fish that, as larger competitors reliant on aquatic habitat, exclude semi-aquatic salamanders to marginal stream habitat. However, it is unclear whether fish interact with stream-breeding salamanders through indirect effects such as, competition for resources (e.g., food or cover) or fear (i.e., threat of predation) nor is it known whether these interactions are consistent through time.</p> <p>2. This study used a novel caging approach to determine if competitive outcomes between a headwater fish and salamanders were regulated primarily through resource depletion (exploitative competition) or behavioural avoidance (interference competition).</p> <p>3. We paired banded sculpin (<i>Cottus carolinae</i>) and larval red salamanders (<i>Pseudotriton ruber</i>) of similar body size in independent flow through mesocosms with intra- and inter-specific pairs allowed to interact physically or non-physically. The experiment was repeated in the fall and in the spring when stream salamander larvae begin to transform into terrestrial juveniles.</p> <p>4. Banded sculpin negatively influenced growth of red salamanders regardless of whether they were allowed to physically interact, suggesting interference competition and behavioural avoidance. This asymmetrical effect was strongest in the spring when salamanders underwent metamorphosis at higher rates in the presence of fish. However, in the fall, the effects were more balanced between the two species with salamanders impacting fish through exploitative competition.</p> <p>5. By studying the temporal relationships between two competitors and using a caging method novel to competition studies, we established that the outcomes of competition are dependent on season and may vary in type relative to the timing of life history events. For this community, these results suggest that outcomes of competition are highly dependent on season and could indicate a biotic mechanism maintaining headwater salamander distributions through source-sink dynamics. Our results also suggest that, in this species interaction, it may be unwarranted to assume that the outcomes of competition at one time represent the complex relationships regulating community interactions.</p>
Fig. 1 in Spatial, seasonal and ontogenetic variation in the diet of Astyanax aff. fasciatus (Ostariophysi: Characidae) in an Atlantic Forest river, Southern Brazil
Fig. 1. Monthly average precipitation and temperature for the rio das Pedras region, Guarapuava, PR, Brazil. (Data refer to the period of January 1976 to December 2000). Source: SIMEPAR.
Fig. 7 in Spatial, seasonal and ontogenetic variation in the diet of Astyanax aff. fasciatus (Ostariophysi: Characidae) in an Atlantic Forest river, Southern Brazil
Fig. 7. Mean ± S.D. Intestinal quotient (I q) of the three established standard length classes for Astyanax aff. fasciatus at two sites on the rio das Pedras. (SL1: <50 mm; SL2: 51-75 mm and SL3:> 76 mm).
Figure 8 from: El-Sherbiny M, M Al - Aidaroos A (2014) First report of the presence of Acartia bispinosa Carl, 1907 (Copepoda, Calanoida) in a semi-enclosed Bay (Sharm El-Maya), northern Red Sea with some notes on its seasonal variation in abundance and body size. ZooKeys 444: 95-118. https://doi.org/10.3897/zookeys.444.7633
Figure 8 - Seasonal variation in males/females sex ratio in the copepod Acartia bispinosa in the study area.
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Allen Brain Atlas
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