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Journal articles on the topic 'Diel patterns'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Learner, Michael, James Pickering, and Roy Wiles. "Diel emergence patterns of chironomids." Internationale Revue der gesamten Hydrobiologie und Hydrographie 75, no. 5 (1990): 569–81. http://dx.doi.org/10.1002/iroh.19900750501.

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2

Selvan, Kangaraj Muthamizh, Bawa Mothilal Krishnakumar, Pasiyappazham Ramasamy, and Thangadurai Thinesh. "Diel activity pattern of meso-carnivores in the suburban tropical dry evergreen forest of the Coromandel Coast, India." Journal of Threatened Taxa 11, no. 8 (June 26, 2019): 13960–66. http://dx.doi.org/10.11609/jott.4850.11.8.13960-13966.

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Sympatric and similar body-sized species exhibit interspecific competition for resources. The present study investigated diel activity of five meso-carnivore species (Canis aureus, Felis chaus, Paradoxurus hermaphroditus, Viverricula indica, and Herpestes edwardsii) in a human-dominated region of Auroville and around Pondicherry University using camera-trap survey data. Diel activity pattern and overlap were estimated using the kernel density method. The Jungle Cat Felis chaus and the Golden Jackal Canis aureus exhibited cathemeral diel activity with a high overlap between them (Δ̂1 = 0.78). The Indian Grey Mongoose Herpestes edwardsii displayed a diurnal activity pattern and had low overlap with the Small Indian Civet Viverricula indica (Δ̂1 = 0.34). Moderate overlap was found between the Small Indian Civet and the Palm Civet Paradoxurus hermaphroditus (Δ̂1 = 0.32). Therefore, diel activity patterns of mesocarnivores indicate inter- and intra-specific trade-off competition avoidance resulting in successful foraging. The present camera-trap survey has provided insights into diel activity patterns and more attention is required to be paid to the study of feeding and breeding ecology of these species in human-dominated landscapes.

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3

Greiwe, Jan, Markus Weiler, and Jens Lange. "Diel patterns in stream nitrate concentration produced by in-stream processes." Biogeosciences 18, no. 16 (August 18, 2021): 4705–15. http://dx.doi.org/10.5194/bg-18-4705-2021.

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Abstract. Diel variability in stream NO3- concentration represents the sum of all processes affecting NO3- concentration along the flow path. Being able to partition diel NO3- signals into portions related to different biochemical processes would allow calculation of daily rates of such processes that would be useful for water quality predictions. In this study, we aimed to identify distinct diel patterns in high-frequency NO3- monitoring data and investigated the origin of these patterns. Monitoring was performed at three locations in a 5.1 km long stream reach draining a 430 km2 catchment. Monitoring resulted in 355 complete daily recordings on which we performed a k-means cluster analysis. We compared travel time estimates to time lags between monitoring sites to differentiate between in-stream and transport control on diel NO3- patterns. We found that travel time failed to explain the observed lags and concluded that in-stream processes prevailed in the creation of diel variability. Results from the cluster analysis showed that at least 70 % of all diel patterns reflected shapes typically associated with photoautotrophic NO3- assimilation. The remaining patterns suggested that other processes (e.g., nitrification, denitrification, and heterotrophic assimilation) contributed to the formation of diel NO3- patterns. Seasonal trends in diel patterns suggest that the relative importance of the contributing processes varied throughout the year. These findings highlight the potential in high-frequency water quality monitoring data for a better understanding of the seasonality in biochemical processes.

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4

James, M. C., C. A. Ottensmeyer, S. A. Eckert, and R. A. Myers. "Changes in diel diving patterns accompany shifts between northern foraging and southward migration in leatherback turtles." Canadian Journal of Zoology 84, no. 5 (May 2006): 754–65. http://dx.doi.org/10.1139/z06-046.

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Diel diving patterns have been widely documented among plankton-feeding marine vertebrates. In many cases, these patterns have been interpreted as a response to the diel vertical migrations of prey. The leatherback turtle, Dermochelys coriacea (Vandelli, 1761), is a large marine predator that exploits gelatinous plankton in disparate foraging areas. Individuals of this species spend extended periods at northern latitudes before moving southward through pelagic waters. To identify and compare potential diel patterns of diving behaviour in temperate areas, where foraging has been observed, versus during southward migration, 15 subadult and adult leatherbacks were equipped with satellite-linked time–depth recorders off Nova Scotia, Canada. We observed variation in nocturnal versus diurnal behaviour, both at northern latitudes and during migration; however, diel differences in both diving and surface activity were much less pronounced while leatherbacks were in the north. We interpret the difference in leatherback diel diving regimen to reflect a response to changing resource conditions at these times, with leatherbacks foraging throughout the day and night at high latitudes, then changing to a bimodal pattern of diving during southward migration, with generally longer, deeper diving occurring during the night versus during the day. By quantifying diel changes in leatherback behaviour, we provide the first surface time correction factors based on multiple individuals for use in estimating abundance from aerial surveys.

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5

Han, Bo-Ping, and Milan Straškraba. "Modeling patterns of zooplankton diel vertical migration." Journal of Plankton Research 20, no. 8 (1998): 1463–87. http://dx.doi.org/10.1093/plankt/20.8.1463.

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6

Angielczyk, K. D., and L. Schmitz. "Nocturnality in synapsids predates the origin of mammals by over 100 million years." Proceedings of the Royal Society B: Biological Sciences 281, no. 1793 (October 22, 2014): 20141642. http://dx.doi.org/10.1098/rspb.2014.1642.

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Nocturnality is widespread among extant mammals and often considered the ancestral behavioural pattern for all mammals. However, mammals are nested within a larger clade, Synapsida, and non-mammalian synapsids comprise a rich phylogenetic, morphological and ecological diversity. Even though non-mammalian synapsids potentially could elucidate the early evolution of diel activity patterns and enrich the understanding of synapsid palaeobiology, data on their diel activity are currently unavailable. Using scleral ring and orbit dimensions, we demonstrate that nocturnal activity was not an innovation unique to mammals but a character that appeared much earlier in synapsid history, possibly several times independently. The 24 Carboniferous to Jurassic non-mammalian synapsid species in our sample featured eye morphologies consistent with all major diel activity patterns, with examples of nocturnality as old as the Late Carboniferous ( ca 300 Ma). Carnivores such as Sphenacodon ferox and Dimetrodon milleri , but also the herbivorous cynodont Tritylodon longaevus were likely nocturnal, whereas most of the anomodont herbivores are reconstructed as diurnal. Recognizing the complexity of diel activity patterns in non-mammalian synapsids is an important step towards a more nuanced picture of the evolutionary history of behaviour in the synapsid clade.

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7

Bahamon, Nixon, Francesc Sardà, and Jacopo Aguzzi. "Fuzzy diel patterns in catchability of deep-water species on the continental margin." ICES Journal of Marine Science 66, no. 10 (July 8, 2009): 2211–18. http://dx.doi.org/10.1093/icesjms/fsp190.

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Abstract Bahamon, N., Sardà, F., and Aguzzi, J. 2009. Fuzzy diel patterns in catchability of deep-water species on the continental margin. – ICES Journal of Marine Science, 66: 2211–2218. Exploited deep-water fish communities on continental margins are poorly understood in terms of variations in species composition and abundance by depth and season as a response to diel changes in light intensity and length of photoperiod. Innovative fuzzy clustering and traditional agglomerative hierarchical clustering methods were applied to data from bottom trawls collected continuously for 4 d in October and June, on the shelf (100–110 m) and upper slope (400–430 m). Fuzzy clustering was more effective than hierarchical clustering at characterizing diel variations in catches from the upper slope because the species assemblage did not show a distinct day and night structure. On the shelf, the species assemblages shifted abruptly between a diurnal and a nocturnal structure at sunset and sunrise, and the two clustering methods yielded similar results. Endobenthic decapods with marked crepuscular-nocturnal emergence from the substratum were mostly responsible for this pattern. No clearly discernible diel pattern was found with the dampening of light intensity with depth, weakening the behavioural response of endobenthos to the day–night cycle. The results indicated that the regulatory effect of the light cycle on diel activity rhythms weakens with depth.

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8

Boyer, S., L. Maillot, L.-C. Gouagna, D. Fontenille, D. D. Chadee, and G. Lemperiere. "Diel Activity Patterns of MaleAedes albopictusin the Laboratory." Journal of the American Mosquito Control Association 29, no. 1 (March 2013): 74–77. http://dx.doi.org/10.2987/12-6259r.1.

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9

Tarrant, Ann M., Nora McNamara-Bordewick, Leocadio Blanco-Bercial, Andrea Miccoli, and Amy E. Maas. "Diel metabolic patterns in a migratory oceanic copepod." Journal of Experimental Marine Biology and Ecology 545 (December 2021): 151643. http://dx.doi.org/10.1016/j.jembe.2021.151643.

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10

Goulden, Michael L., Scott D. Miller, Humberto R. da Rocha, Mary C. Menton, Helber C. de Freitas, Adelaine Michela e Silva Figueira, and Cleilim Albert Dias de Sousa. "DIEL AND SEASONAL PATTERNS OF TROPICAL FOREST CO2EXCHANGE." Ecological Applications 14, sp4 (August 2004): 42–54. http://dx.doi.org/10.1890/02-6008.

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11

Frampton, Geoff K., Paul J. Van den Brink, and Steve D. Wratten. "Diel activity patterns in an arable collembolan community." Applied Soil Ecology 17, no. 1 (May 2001): 63–80. http://dx.doi.org/10.1016/s0929-1393(00)00128-1.

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12

Primavera, J. Honculada, and J. Lebata. "Diel activity patterns in Metapenaeus and Penaeus juveniles." Hydrobiologia 295, no. 1-3 (January 1995): 295–302. http://dx.doi.org/10.1007/bf00029136.

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13

Brinton, Cameron Patrick, and Mary Carla Curran. "Tidal and diel movement patterns of the Atlantic stingray (Dasyatis sabina) along a stream-order gradient." Marine and Freshwater Research 68, no. 9 (2017): 1716. http://dx.doi.org/10.1071/mf16073.

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The behaviour of the Atlantic stingray (Dasyatis sabina) is affected by environmental cues, including time of day and tide. The purpose of the present study was to determine whether these cycles and differences in creek geomorphology affected presence and movement patterns of Atlantic stingrays near Savannah, GA, USA. Forty-five stingrays were tagged with Vemco coded-acoustic transmitters and passively tracked in two creek systems between December 2012 and December 2014. The geomorphology of the creeks was classified using the Horton stream-order concept, with the smallest tributaries assigned to the first order. Stingrays moved most at dusk (0.26±0.09 movements day–1), followed by night (0.23±0.09 movements day–1). Stingrays were found in deeper water during the cold season than during the warm season. Patterns in creek usage across tidal stages were nearly consistent across seasons. However, the diel pattern varied; stingrays utilised all creek orders throughout the diel cycle in the warm seasons, but entered only shallow creeks during the day in the cold season. Because presence and movements of stingrays were affected by tidal and diel cycles, these environmental factors could also affect their foraging patterns and their influence as an ecosystem engineer.

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14

Adlerstein, Sara A., and Henny C. Welleman. "Diel variation of stomach contents of North Sea cod (Gadus morhua) during a 24-h fishing survey: an analysis using generalized additive models." Canadian Journal of Fisheries and Aquatic Sciences 57, no. 12 (December 1, 2000): 2363–67. http://dx.doi.org/10.1139/f00-249.

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Results show that the weight of cod (Gadus morhua) stomach contents sampled in the North Sea varies significantly within 24 h. To determine whether feeding varied with time, over 1100 cod stomachs were collected around the clock between 7 and 18 May 1984 in two areas in the central North Sea thought to be representative for feeding studies. Here we investigate temporal feeding patterns based on the analysis of stomach-content data, using generalized additive models (GAMs). Results show significant variation of content weight and indicate morning and evening peaks. The relative peak importance differed between and within areas. We propose that differences are due to diet composition, namely, prey size and diel availability. Cod fed primarily on molluscs, mainly ocean quahog (Cyprina islandica), crustaceans, sandeels (Ammodytes spp.), haddock (Melanogrammus aeglefinus), herring (Clupea harrengus), and several flatfish species. In one area, the diet was dominated by fish, relatively large prey that perform diel vertical migration, and in the other by invertebrates, smaller prey that are digested faster. The diel pattern was more pronounced where invertebrate prey were dominant. Generalisation of results and implications for predation-mortality estimates based on data from the North Sea Stomach Content Database, used to implement multispecies models in the region, are discussed.

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15

Tang, S., A. G. Lewis, M. Sackville, L. Nendick, C. DiBacco, C. J. Brauner, and A. P. Farrell. "Diel vertical distribution of early marine phase juvenile pink salmon (Oncorhynchus gorbuscha) and behaviour when exposed to salmon louse (Lepeophtheirus salmonis)." Canadian Journal of Zoology 89, no. 9 (September 2011): 796–807. http://dx.doi.org/10.1139/z11-049.

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We observed diel vertical migration patterns in juvenile pink salmon ( Oncorhynchus gorbuscha (Walbaum, 1792)) and tested the hypothesis that fish behaviour is altered by exposure to sea lice copepodids. Experiments involved replicated field deployments of a large (9 m) plankton column, which provided a vertical distribution enclosure under natural light and salinity conditions. Diel vertical distributions of juvenile pink salmon were observed during the first 3 weeks of seawater acclimation in both the presence and the absence of the ectoparasitic salmon louse ( Lepeophtheirus salmonis (Krøyer, 1838)). Immediately upon entering seawater, juvenile pink salmon preferred the top 1 m of the water column, but they moved significantly deeper down the vertical water column as seawater acclimation time increased. A significant diel migration pattern was observed, which involved a preference for the surface at night-time, compared with daytime. When fish in the column were exposed to L. salmonis copepodids for 3 h, 43%–62% of fish became infected, fish expanded their vertical distribution range, and significant changes in vertical distribution patterns were observed.

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16

Cooper, William E., Carolee Caffrey, and Laurie J. Vitt. "Diel Activity Patterns in the Banded Gecko, Coleonyx variegatus." Journal of Herpetology 19, no. 2 (June 1985): 308. http://dx.doi.org/10.2307/1564192.

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17

Fiksen, Øyvind. "ALLOCATION PATTERNS AND DIEL VERTICAL MIGRATION: MODELING THE OPTIMALDAPHNIA." Ecology 78, no. 5 (July 1997): 1446–56. http://dx.doi.org/10.1890/0012-9658(1997)078[1446:apadvm]2.0.co;2.

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18

Sievert, Lynnette M., and Paul T. Andreadis. "Differing Diel Patterns of Temperature Selection in Two SympatricDesmognathus." Copeia 2002, no. 1 (February 2002): 62–66. http://dx.doi.org/10.1643/0045-8511(2002)002[0062:ddpots]2.0.co;2.

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19

Zhang, Min, Yue Guan, Baoli Qin, and Xulin Wang. "Responses of phytoplankton species to diel temperature fluctuation patterns." Phycological Research 67, no. 3 (March 19, 2019): 184–91. http://dx.doi.org/10.1111/pre.12369.

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20

Miranda, Leandro E., and Clay D. Raines. "Reservoir diel water quality patterns relative to riparian shade." Lake and Reservoir Management 35, no. 2 (April 3, 2019): 148–55. http://dx.doi.org/10.1080/10402381.2019.1570573.

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21

Kaartvedt, S. "Diel activity patterns in deep-living cumaceans and amphipods." Marine Ecology Progress Series 30 (1986): 243–49. http://dx.doi.org/10.3354/meps030243.

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22

Walters, K., and SS Bell. "Diel patterns of active vertical migration in seagrass meiofauna." Marine Ecology Progress Series 34 (1986): 95–103. http://dx.doi.org/10.3354/meps034095.

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23

Pascual, M., J. L. Acuña, A. Sabatés, V. Raya, and V. Fuentes. "Contrasting diel vertical migration patterns in Salpa fusiformis populations." Journal of Plankton Research 39, no. 5 (August 11, 2017): 836–42. http://dx.doi.org/10.1093/plankt/fbx043.

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24

Mourelatos, Spiros, Claude Rougier, and Roger Pourriot. "Diel patterns of zooplankton grazing in a shallow lake." Journal of Plankton Research 11, no. 5 (1989): 1021–35. http://dx.doi.org/10.1093/plankt/11.5.1021.

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25

Mulder, I. M., J. B. Dempson, I. A. Fleming, and M. Power. "Diel activity patterns in overwintering Labrador anadromous Arctic charr." Hydrobiologia 840, no. 1 (March 19, 2019): 89–102. http://dx.doi.org/10.1007/s10750-019-3926-7.

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26

Spurgeon, D. W., and C. P. C. Suh. "Diel Patterns of Pheromone Production in the Boll Weevil (Coleoptera: Curculionidae)." Journal of Entomological Science 42, no. 2 (April 1, 2007): 250–60. http://dx.doi.org/10.18474/0749-8004-42.2.250.

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Detailed knowledge of boll weevil, Anthonomus grandis Boheman, chemical ecology on cotton, Gossypium hirsutum L., is needed to improve pheromone trapping methods. Recent studies using headspace collections have indicated that most pheromone is not in the feces as previously assumed. We used headspace collections to examine the diel patterns of boll weevil pheromone production and to determine whether the timing of food replacement influenced those patterns. Pheromone production of individual 9- and 11-d-old weevils was estimated during 4 daily periods (0730–1130, 1130–1530, 1530–1930, and 1930–0730 h) under temperatures of 27 ± 2°C and with a 13:11 (L:D) h photoperiod that began at 0700 h. Weevils fed daily at 0730 h produced more pheromone (2.83 ± 0.25 μg h−1) than weevils fed at 1530 h (1.95 ± 0.25 μg h−1), and 11-d-old weevils produced more pheromone (2.62 ± 0.22 μg h−1) than 9-d-old weevils (2.16 ± 0.23 μg h−1). Furthermore, weevils fed at 0730 h exhibited a clear diel pattern of pheromone production with maximal and minimal production occurring between 1130–1530 h and 1930–0730 h, respectively. Weevils fed at 1530 h exhibited a similar periodicity, but the pattern was less distinct. Pheromone composition of weevils fed at 0730 h was relatively consistent among daily periods and the ratio of the 4 components was approximately 45:42:3:10 (I:II:III:IV). However, pheromone composition varied significantly among daily periods for weevils fed at 1530 h. Our results demonstrate a diel periodicity in pheromone production by the boll weevil, and illustrate the need for careful control of weevil diets in such studies.

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27

Nocera, Ariadna C., Eloísa M. Giménez, Mariano J. Diez, María Valeria Retana, and Gesche Winkler. "Krill diel vertical migration in Southern Patagonia." Journal of Plankton Research 43, no. 4 (July 2021): 610–23. http://dx.doi.org/10.1093/plankt/fbab047.

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Abstract Diel vertical migration (DVM) of krill was studied throughout 36 h at a fixed station (46.05°S, 66.19°W; 98-m depth) located in the center of the San Jorge Gulf, Southern Patagonia area, during February 2014. Using an echosounder system, combined with an autonomous Video Plankton Recorder (Auto-VPR) and Jacknet samplings, we describe the migration pattern, the associated biomass and the macrozooplankton species involved. The net sampling and the Auto-VPR images allowed us to identify the krill species detected in the echosounder signals, which corresponded to Euphausia lucens, Euphausia vallentini and Nematoscelis megalops. The krill community followed a “normal pattern” of DVM, ascending at dusk (~18:30 h) and descending at dawn (~06:30 h), forming a dense layer near the bottom during the day. Krill vertical migration speed was estimated from the echogram data at ~ 1 cm s−1 (1 body length per s for 1-cm-long animal), and the integrated mean biomass was 57.8 g m−2. This study provides a description of temporal and spatial patterns of krill vertical distribution, which should be taken into account when studying the complexity of the SJG ecosystem dynamics and carbon flux.

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28

Levy, David A. "Reciprocal Diel Vertical Migration Behavior in Planktivores and Zooplankton in British Columbia Lakes." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 9 (September 1, 1990): 1755–64. http://dx.doi.org/10.1139/f90-199.

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Simultaneous comparison of planktivore and crustacean zooplankton distribution patterns in a set of British Columbia lakes suggested coupled diel vertical migration behavior in the two adjacent trophic levels. In lakes where juvenile sockeye salmon performed diel vertical migrations, most zooplankton were non-migratory and concentrated in shallow surface waters over the diel cycle. In contrast, in one lake where pelagic threespine sticklebacks were present, and where juvenile sockeye diel vertical migrations were periodically reversed, most zooplankton undertook diel vertical migrations. The presence of diel vertical migration behavior in zooplankton thus appears to be related to the presence or absence of the behavior in the predominant planktivores.

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29

Wang, Kai, and Xiaozhen Mou. "Coordinated Diel Gene Expression of Cyanobacteria and Their Microbiome." Microorganisms 9, no. 8 (August 5, 2021): 1670. http://dx.doi.org/10.3390/microorganisms9081670.

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Diel rhythms have been well recognized in cyanobacterial metabolisms. However, whether this programmed activity of cyanobacteria could elicit coordinated diel gene expressions in microorganisms (microbiome) that co-occur with cyanobacteria and how such responses in turn impact cyanobacterial metabolism are unknown. To address these questions, a microcosm experiment was set up using Lake Erie water to compare the metatranscriptomic variations of Microcystis cells alone, the microbiome alone, and these two together (whole water) over two day-night cycles. A total of 1205 Microcystis genes and 4779 microbiome genes exhibited significant diel expression patterns in the whole-water microcosm. However, when Microcystis and the microbiome were separated, only 515 Microcystis genes showed diel expression patterns. A significant structural change was not observed for the microbiome communities between the whole-water and microbiome microcosms. Correlation analyses further showed that diel expressions of carbon, nitrogen, phosphorous, and micronutrient (iron and vitamin B12) metabolizing genes were significantly coordinated between Microcystis and the microbiome in the whole-water microcosm. Our results suggest that diel fluxes of organic carbon and vitamin B12 (cobalamin) in Microcystis could cause the diel expression of microbiome genes. Meanwhile, the microbiome communities may support the growth of Microcystis by supplying them with recycled nutrients, but compete with Microcystis for iron.

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30

Stockwell, Jason D., and Brett M. Johnson. "Field evaluation of a bioenergetics-based foraging model for kokanee (Oncorhynchus nerka)." Canadian Journal of Fisheries and Aquatic Sciences 56, S1 (November 30, 1999): 140–51. http://dx.doi.org/10.1139/f99-218.

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We used a bioenergetics-based foraging model to determine if bioenergetic and foraging constraints could explain kokanee (Oncorhynchus nerka) diel vertical migration in Blue Mesa Reservoir, Colorado. We compared model predictions of daily growth and migration strategies with observed growth and diel vertical distributions on three dates during the summer. Results suggest that bioenergetic and foraging constraints were not sufficient to explain diel vertical migration early in the summer, when thermal stratification was weak. However, these constraints could explain observed patterns later in the summer, when optimal thermal habitat for kokanee was spatially segregated from food-rich surface waters. The onset of a strong thermocline, and its exclusion of piscivorous lake trout (Salvelinus namaycush) from surface waters, appeared to determine the relative importance of predation risk for kokanee diel vertical migration patterns. Our observations and modeling results suggest that the relative importance of various factors driving diel vertical migration changes seasonally. Furthermore, the relative importance of each factor likely varies from system to system and may have caused the variety of single-factor hypotheses proposed to explain kokanee diel vertical migration. The model provides a framework for studying diel vertical migration across systems of differing thermal regimes, productivity, and predation pressures.

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31

Munro, R. H. M., S. E. Nielsen, M. H. Price, G. B. Stenhouse, and M. S. Boyce. "SEASONAL AND DIEL PATTERNS OF GRIZZLY BEAR DIET AND ACTIVITY IN WEST-CENTRAL ALBERTA." Journal of Mammalogy 87, no. 6 (December 2006): 1112–21. http://dx.doi.org/10.1644/05-mamm-a-410r3.1.

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32

Price, Christopher J., William M. Tonn, and Cynthia A. Paszkowski. "Intraspecific patterns of resource use by fathead minnows in a small boreal lake." Canadian Journal of Zoology 69, no. 8 (August 1, 1991): 2109–15. http://dx.doi.org/10.1139/z91-294.

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An isolated, single-species assemblage of fathead minnows (Pimephales promelas) was studied to identify patterns of feeding and diel activity among three life-history groups (adult males, adult females, and juveniles). Minnows were collected from inshore and offshore stations during monthly (May–August) 24-h sampling periods. Minnows appeared flexible in their choice of food items, concentrating their feeding on invertebrate taxa, such as emerging chironomid pupae, that were temporarily available, as well as on relatively large and vulnerable microcrustaceans, such as Daphnia. Adult males, larger than females and juveniles, consumed the amphipod Hyallela azteca to a greater extent than the two smaller-bodied groups. Patterns of habitat use and activity were also consistent with behavioral flexibility. Prior to the breeding season, when all three groups were abundant, the population displayed intraspecific differences in diel activity; adults were typically active at night, when chironomid pupae were most abundant, whereas juveniles were primarily day active. Later, as catches of males declined, spatial and temporal patterns of females and juveniles were similar and diet overlap was high. Characteristics of both the fish population and their prey interact to shape patterns of resource use in fathead minnows.

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33

Lobo, Jorge M., and Eva Cuesta. "Seasonal variation in the diel activity of a dung beetle assemblage." PeerJ 9 (July 12, 2021): e11786. http://dx.doi.org/10.7717/peerj.11786.

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The seasonal and diel variations of dung beetle species were studied in an Iberian mid-mountain locality to examine the interaction between these two temporal rhythms. We assume that a seasonal variation in the diel activity would support the notion that both rhythms may assist in achieving a quick and flexible response when the climatic conditions change. Data coming from 4,104 pitfall traps placed during 15 sampling periods and totalling 30 daily sampling cycles were analysed using circular statistics and General Linear Models. A wide variety of seasonal patterns are observed, highlighting those species with a clear unimodal or spring-autumn bimodal seasonal pattern. However, a midday diel pattern is the norm in most of the species, except in the case of those exhibiting a high body weight that prefer dusk or night periods. We hypothesize that most of the dung beetle species fly at noon to promote the passive heating of their muscle activity and minimize the metabolic energy expenditure. Results only partially support the seasonal variation in diel activity. Diel preferences are mainly manifested at the time of the year in which the abundance is greater. Approximately two-thirds of the considered species exhibit a similar diel activity along their seasonal active period. As consequence, a significant portion of the dung beetle species currently inhabiting Mediterranean mid-mountains are not able to use the daily variation in climatic conditions to limit the inconveniences of climate change.

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Voss, Rüdiger, Jörn O. Schmidt, and Dietrich Schnack. "Vertical distribution of Baltic sprat larvae: changes in patterns of diel migration?" ICES Journal of Marine Science 64, no. 5 (June 2, 2007): 956–62. http://dx.doi.org/10.1093/icesjms/fsm068.

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Abstract Voss, R., Schmidt, J. O., and Schnack, D. 2007. Vertical distribution of Baltic sprat larvae: changes in patterns of diel migration? – ICES Journal of Marine Science, 64: 956–962. Ontogenetic and diurnal vertical migration patterns of Baltic sprat larvae were investigated for the periods 1989–1990 and 1998–2002. Comparison of the results led to the hypothesis that the diel vertical migration behaviour of sprat larvae >10 mm has changed. In 1989 and 1990, sprat larvae migrated to the surface at night, whereas they stayed 30–50 m deep by day. From 1998 to 2002, sprat larvae showed no signs of diel vertical migration, remaining in warmer, near-surface water by day and night. This behavioural change coincided with a more general change in the Baltic ecosystem, i.e. an increase in near-surface temperature and a general increase in abundance of the major prey organism (Acartia spp.) of Baltic sprat larvae, with more pronounced aggregation in surface waters.

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Larranaga, Nicolas, Magnus L. Wallerius, Haoyu Guo, Julien Cucherousset, and Jörgen I. Johnsson. "Invasive brook trout disrupt the diel activity and aggregation patterns of native brown trout." Canadian Journal of Fisheries and Aquatic Sciences 76, no. 7 (July 2019): 1052–59. http://dx.doi.org/10.1139/cjfas-2018-0110.

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In European streams, native brown trout (Salmo trutta) feed primarily on aquatic prey but consume a higher proportion of terrestrial prey in sympatry with non-native brook trout (Salvelinus fontinalis). This is a rare example of diet convergence that may be associated with changes in diel activity or aggregation pattern by brown trout in sympatry. We recorded the activity and positions of brown trout from two origins and in two competition modes (allopatry versus sympatry, four combinations) placed in replicated stream enclosures for 29 days to test these hypotheses. Brown trout originating from or placed in sympatry were more diurnal and aggregated than those originating from or placed in allopatry. Changes in the diel activity of brown trout placed in a novel competition mode occurred progressively throughout the study. Thus, brown trout show strong behavioral flexibility in response to the non-native competitor and can revert to allopatric behavior when brook trout is removed from the system. These behavioral adjustments may have unsuspected effects on food webs and ecosystem functioning, which deserve further attention.

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Fiksen, Oyvind. "Allocation Patterns and Diel Vertical Migration: Modeling the Optimal Daphnia." Ecology 78, no. 5 (July 1997): 1446. http://dx.doi.org/10.2307/2266139.

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Fan, TY, KH Lin, FW Kuo, K. Soong, LL Liu, and LS Fang. "Diel patterns of larval release by five brooding scleractinian corals." Marine Ecology Progress Series 321 (September 8, 2006): 133–42. http://dx.doi.org/10.3354/meps321133.

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Castner, James L., and Harold G. Fowler. "DIEL PATTERNS OF LARRA BICOLOR (HYMENOPTERA: SPHECIDAE) IN PUERTO RICO." Journal of Entomological Science 22, no. 1 (January 1, 1987): 77–83. http://dx.doi.org/10.18474/0749-8004-22.1.77.

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Behavioral observations of Larra bicolor F., a sphecid parasitoid of Scapteriscus mole crickets, made in Puerto Rico differed significantly from records made in Brazil. Foraging and host-searching occurred over a greater daily period and were less severely affected by climatic conditions. Foraging adults, previously recorded only on Spermacoce verticillata L. and species of Hyptis, were also frequently found on Euphorbia heterophylla L. and Croton glandulosus L. Mate-searching is described and appears to be based on the attraction of males to a female-produced pheromone.

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Miwa, Kentaro, and Lance J. Meinke. "Diel Patterns ofColaspis brunneaandColaspis crinicornis(Coleoptera: Chrysomelidae) in Southeastern Nebraska." Environmental Entomology 44, no. 6 (August 18, 2015): 1553–61. http://dx.doi.org/10.1093/ee/nvv132.

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Hertel, Anne G., Jon E. Swenson, and Richard Bischof. "A case for considering individual variation in diel activity patterns." Behavioral Ecology 28, no. 6 (September 11, 2017): 1524–31. http://dx.doi.org/10.1093/beheco/arx122.

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Larrucea, Eveline S., and Peter F. Brussard. "Diel and Seasonal Activity Patterns of Pygmy Rabbits (Brachylagus idahoensis)." Journal of Mammalogy 90, no. 5 (October 15, 2009): 1176–83. http://dx.doi.org/10.1644/08-mamm-a-272.1.

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Zhao, Chong, Wenping Feng, Xiaofei Tian, Haisen Zhou, and Yaqing Chang. "Diel patterns of covering behavior by male and femaleStrongylocentrotus intermedius." Marine and Freshwater Behaviour and Physiology 46, no. 5 (September 2013): 337–43. http://dx.doi.org/10.1080/10236244.2013.834119.

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Savage, K., E. A. Davidson, and J. Tang. "Diel patterns of autotrophic and heterotrophic respiration among phenological stages." Global Change Biology 19, no. 4 (January 15, 2013): 1151–59. http://dx.doi.org/10.1111/gcb.12108.

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Costa, J. T., and D. A. Crossley. "Diel Patterns of Canopy Arthropods Associated with Three Tree Species." Environmental Entomology 20, no. 6 (December 1, 1991): 1542–48. http://dx.doi.org/10.1093/ee/20.6.1542.

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Batchelder, Harold P., Elijah Swift, and Jeffrey R. Van Keuren. "Diel patterns of planktonic bioluminescence in the northern Sargasso Sea." Marine Biology 113, no. 2 (June 1992): 329–39. http://dx.doi.org/10.1007/bf00347288.

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Sogard, Susan M., and Bori L. Olla. "Diel patterns of behavior in juvenile walleye pollock,Theragra chalcogramma." Environmental Biology of Fishes 47, no. 4 (December 1996): 379–86. http://dx.doi.org/10.1007/bf00005051.

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Benoít, Hugues P., and Douglas P. Swain. "Accounting for length- and depth-dependent diel variation in catchability of fish and invertebrates in an annual bottom-trawl survey." ICES Journal of Marine Science 60, no. 6 (January 1, 2003): 1298–317. http://dx.doi.org/10.1016/s1054-3139(03)00124-3.

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Abstract Diel variation in the catchability of 51 species of fish and 13 invertebrate taxa from an annual bottom-trawl survey of the southern Gulf of St. Lawrence was examined using generalized linear (Poisson) models. Two approaches were used: comparative fishing based on spatially paired day and night tows, and statistical control of spatio-temporal effects in regular survey data. The two approaches provided remarkably similar results. Furthermore, species-specific results were consistent between survey time periods where different vessels were used, and were quite comparable to results from other studies conducted in separate geographic areas. Where sufficient data existed, we considered both length and depth dependencies in diel variation in catchability. We commonly found significant length dependency for groundfish species and the pervasive pattern was for higher nighttime catches of small fish, the magnitude of the effect generally decreasing with increasing length. In contrast, water depth had a much less important impact, except for a few species. When considered jointly, however, patterns in length/depth dependency were not always clear. Given length-dependent geographic and bathymetric patterns in species distribution, the potential for confounding length and depth dependencies exists and correction factors for diel variation in catchability need to be applied cautiously.

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Wang, Danfeng, Guang Yang, and Wenfeng Chen. "Diel and Circadian Patterns of Locomotor Activity in the Adults of Diamondback Moth (Plutella xylostella)." Insects 12, no. 8 (August 14, 2021): 727. http://dx.doi.org/10.3390/insects12080727.

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The Diamondback Moth (Plutella xylostella) is a highly destructive lepidopteran pest of cruciferous crops. However, there still is relatively little known about the locomotor activities of diel and the circadian patterns in P. xylostella. Here, we present an analysis of the diel locomotion of P. xylostella under several laboratory settings. We established a system for measuring the individual locomotor activities of P. xylostella and found that both males and females showed a nocturnal pattern of activity under 26 or 20 °C LD conditions, with activity peaking immediately after lights off and quickly declining after lights on. In addition, we showed that it is difficult to assess the free-running circadian rhythms of P. xylostella under 26 °C DD conditions. However, we found that males showed a higher power, rhythm index (RI) and rhythmic ratio than females under 20 °C DD conditions, which indicated that males in low-temperature conditions are much more suitable to study the free-running circadian rhythms of P. xylostella. The findings of this study will help us to have a better understanding of the diel activity of P. xylostella and may provide a foundation for the development of an effective pest management strategy.

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Cousineau, A., J. D. Midwood, K. Stamplecoskie, G. King, C. D. Suski, and S. J. Cooke. "Diel patterns of baseline glucocorticoids and stress responsiveness in a teleost fish (bluegill, Lepomis macrochirus)." Canadian Journal of Zoology 92, no. 5 (May 2014): 417–21. http://dx.doi.org/10.1139/cjz-2014-0054.

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Little is known about whether glucocorticoids (GC) and GC responsiveness vary on a diel basis in the wild, especially for fish. Using bluegill (Lepomis macrochirus Rafinesque, 1819) as a model freshwater teleost fish, we tested whether baseline concentration and stress responsiveness of GCs (i.e., plasma glucose and cortisol) varied over a 24 h period. Blood samples from lake-dwelling wild bluegill were obtained across six periods representing a complete circadian cycle to determine GC levels in newly captured fish (i.e., within 3 min of capture; baseline), the maximum value (maximum) 45 min following exposure to a standardized aerial exposure stressor, and determining responsiveness (by subtracting minimum from maximum). Our results revealed that baseline glucose concentration did not vary on a diel basis, whereas baseline cortisol concentration did. Maximum and stress-induced glucose responsiveness varied significantly among several time periods with lowest values recorded at midnight and higher values at mid-day. Maximum and stress-induced cortisol responsiveness were consistent across time periods. Collectively, these data suggest that baseline concentrations and stress-induced values of GCs in a freshwater temperate teleost fish tend to be consistent across diel periods such that there is apparently an absence of strong GC diel patterns.

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Sertić Perić, Mirela, Renata Matoničkin Kepčija, Ines Radanović, Biserka Primc, and Ivan Habdija. "Freshwater reefs as mesohabitats for the assessment of diel invertebrate drift patterns." Natura Croatica 29, no. 2 (March 31, 2021): 185–203. http://dx.doi.org/10.20302/nc.2020.29.26.

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Freshwater reefs (known as tufa barriers) are special karst features recognized for highly heterogeneous habitat structures, complex hydrogeological features, and unique macrozoobenthos drift (downstream dispersal) patterns. Our study objective was to investigate diel and seasonal drift patterns between barriers and pools, both composed of moss-rich and fishless mesohabitat types, aligned on a small spatial scale within the karst, tufa-precipitating Plitvice Lakes hydrosystem. We monthly sampled drift at the two mesohabitat types (barriers and pools) during midday and dusk and examined quantitative and qualitative drift compositions, including drifting invertebrates, moss, and associated particulate organic and inorganic matter (APOIM). Barriers displayed higher invertebrate drift densities than those of pools. The same pattern was observed for moss and APOIM. At both mesohabitat types, invertebrate drift showed peak but highly variable densities during late spring and summer (mean >100 individuals m-3), whereas during late winter and early spring the drift densities were 5-fold lower than those densities. The nonmetric multidimensional scaling analysis revealed that invertebrate drift seasonality was influenced by seasonal drift patterns of aquatic moss and moss-dwelling invertebrate taxa. Adult and/or larval Riolus spp. and larval Hemerodromia spp. were found to be the most significant for the separation of midday and dusk within the NMDS ordination of barriers and pools. At barriers, midday drift densities of invertebrates, moss, and APOIM were higher than the respective dusk records. Within pools, invertebrate drift was largely aperiodic. We suggest that increased midday and/or aperiodic drift are a consequence of the lack of fish between barrier- and pool-mesohabitats. Our results further indicated that aquatic invertebrates inhabiting fast-flowing barriers and slow-flowing pools mostly exhibit “passive drift” mediated by transport agents such as water flow and dislodged aquatic vegetation. The observed spatio-temporal drift patterns are also likely influenced by ontogenetic shifts in drift periodicity (i.e., shifts depending on the development stage and morphological characteristics of the individual taxa) as well as benthic distribution of moss-dwelling invertebrate taxa. We can conclude that biotic (vs. abiotic) controls of drift are likely minimized in the fishless case of the freshwater reefs and associated barrier–pool sequences within Plitvice Lakes hydrosystem.

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