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172 results for “Feeding behavior”
Data from: Widespread and persistent invasions of terrestrial habitats coincident with larval feeding behavior transitions during snail-killing fly evolution (Diptera: Sciomyzidae)
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Temperature-dependent feeding behavior in the brown box crab
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Data from: REM sleep stabilizes hypothalamic representation of feeding behavior
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Drymarchon corais (Colubridae) and Caiman crocodilus (Alligatoridae) use different feeding behaviors to consume poisonous toads
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Variation in social feeding behaviors and interactions among Caenorhabditis nematodes
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Data from: Starving the enemy? Feeding behavior shapes host-parasite interactions
The loss of appetite that typically accompanies infection or the mere exposure to parasites is traditionally considered a negative by-product of infection, benefitting neither the host nor the parasite. In fact, numerous medical and veterinary practices directly or indirectly subvert this 'illness-mediated anorexia'. However, the ecological factors that influence it, its effects on disease outcomes, or why it evolved remains poorly resolved. We explore how hosts use anorexia to defend against infection and how parasites can manipulate anorexia to enhance transmission. Then, we use a coevolutionary model to illustrate how changes to anorexia could alter disease dynamics and virulence evolution. Anorexia could be exploited to improve host health and disease management; we propose an interdisciplinary approach to minimize unintended consequences.
Data from: Lateralized feeding behavior is associated with asymmetrical neuroanatomy and lateralized gene expressions in the brain in scale-eating cichlid fish
Lateralized behavior ('handedness') is unusual, but consistently found across diverse animal lineages, including humans. It is thought to reflect brain anatomical and/or functional asymmetries, but its neuro-molecular mechanisms remain largely unknown. Lake Tanganyika scale-eating cichlid fish, Perissodus microlepis show pronounced asymmetry in their jaw morphology as well as handedness in feeding behavior – feeding scales preferentially only from one or the other side of their victims. This makes them an ideal model in which to investigate potential laterality in neuroanatomy and transcription in the brain in relation to behavioral handedness. After determining behavioral handedness in P. microlepis (preferred attack side), we estimated the volume of the hemispheres of brain regions and captured their gene expression profiles. Our analyses revealed that the degree of behavioral handedness is mirrored at the level of neuroanatomical asymmetry, particularly in the tectum opticum. Transcriptome analyses showed that different brain regions (tectum opticum, telencephalon, hypothalamus and cerebellum) display distinct expression patterns, potentially reflecting their developmental interrelationships. For numerous genes in each brain region, their extent of expression differences between hemispheres was found to be correlated with the degree of behavioral lateralization. Interestingly, the tectum opticum and telencephalon showed divergent biases on the direction of up- or down-regulation of the laterality candidate genes (e.g., grm2) in the hemispheres, highlighting the connection of handedness with gene expression profiles and the different roles of these brain regions. Hence, handedness in predation behavior may be caused by asymmetric size of brain hemispheres and also by lateralized gene expressions in the brain.
Data from: Fitness consequences of altered feeding behavior in immune-challenged mosquitoes
Background: Malaria-infected mosquitoes have been reported to be more likely to take a blood meal when parasites are infectious than when non-infectious. This change in feeding behavior increases the likelihood of malaria transmission, and has been considered an example of parasite manipulation of host behavior. However, immune challenge with heat-killed Escherichia coli induces the same behavior, suggesting that altered feeding behavior may be driven by adaptive responses of hosts to cope with an immune response, rather than by parasite-specific factors. Here we tested the alternative hypothesis that down-regulated feeding behavior prior to infectiousness is a mosquito adaptation that increases fitness during infection. Methods: We measured the impact of immune challenge and blood feeding on the fitness of individual mosquitoes. After an initial blood meal, Anopheles stephensi Liston mosquitoes were experimentally challenged with heat-killed E. coli at a dose known to mimic the same temporal changes in mosquito feeding behavior as active malaria infection. We then tracked daily egg production and survivorship of females maintained on blood-feeding regimes that either mimicked down-regulated feeding behaviors observed during early malaria infection, or were fed on a four-day feeding cycle typically associated with uninfected mosquitoes. Results: Restricting access to blood meals enhanced mosquito survival but lowered lifetime reproduction. Immune- challenge did not impact either fitness component. Combining fecundity and survival to estimate the population- scale intrinsic rate of increase (r), we found that, contrary to the mosquito adaptation hypothesis, mosquito fitness decreased if blood feeding was delayed following an immune challenge. Conclusions: Our data provide no support for the idea that malaria-induced suppression of blood feeding is an adaptation by mosquitoes to reduce the impact of immune challenge. Alternatively, the behavioral alterations may be neither host nor parasite adaptations, but rather a consequence of constraints imposed on feeding by activation of the mosquito immune response, i.e. non-adaptive illness-induced anorexia. Future work incorporating field conditions and different immune challenges could further clarify the effect of altered feeding on mosquito and parasite fitness.
High-fat mice feeding behavior dataset
<p>High-fat mice feeding behavior dataset for rendering in shiny-pergola app</p>
Fig. 2 in Larval Feeding Behavior of Gratiana spadicea (Klug) (Coleoptera: Chrysomelidae: Cassidinae) on its Host Plant, Solanum sisymbriifolium Lamarck (Solanaceae): Interaction with Trichomes
Fig. 2. Characteristics of the stellate trichomes removed by Gratiana spadicea (n ¼ 20 per
Fig. 1 in Feeding and social behavior of the piabanha, Brycon devillei (Castelnau, 1855) (Characidae: Bryconinae) in the wild, with a note on following behavior
Fig. 1. Observed frequency of foraging tactics of Brycon devillei in the RPSP between April 2006 and July 2009.
Figure 2 from: Lanna LL, de Azevedo CS, Claudino RM, Oliveira R, Antonini Y (2017) Feeding behavior by hummingbirds (Aves: Trochilidae) in artificial food patches in an Atlantic Forest remnant in southeastern Brazil. Zoologia 34: 1-9. https://doi.org/10.3897/zoologia.34.e13228
Figure 2 - Positive correlation between the time spent feeding and the exhibition of aggressive behaviors by the hummingbirds. For this analysis, we included the time spent feeding by all hummingbird species in all sugar concentrations, and we summed the aggressive behaviors "expelling", "fighting", "frightening", "expel attempt", "alert" and "vocalizing".
Figure 1 from: Lanna LL, de Azevedo CS, Claudino RM, Oliveira R, Antonini Y (2017) Feeding behavior by hummingbirds (Aves: Trochilidae) in artificial food patches in an Atlantic Forest remnant in southeastern Brazil. Zoologia 34: 1-9. https://doi.org/10.3897/zoologia.34.e13228
Figure 1 - Sugar concentrations most visited by the recorded hummingbird species based on time spent foraging (mean duration of time spent foraging ± SD). Different letters represents statistical differences between sugar solutions as per the results of Dunn's post hoc tests (P-value < 0.05).
Figures 3-6 from: Lanna LL, de Azevedo CS, Claudino RM, Oliveira R, Antonini Y (2017) Feeding behavior by hummingbirds (Aves: Trochilidae) in artificial food patches in an Atlantic Forest remnant in southeastern Brazil. Zoologia 34: 1-9. https://doi.org/10.3897/zoologia.34.e13228
Figures 3-6 - Positive correlation between size (cm) and the exhibition of aggressive (3) and submissive (4) behaviors by the hummingbirds. Positive correlation between weight (g) and the exhibition of aggressive (5) and submissive (6) behaviors by the hummingbirds. For both analysis, we included aggressive and submissive behaviors exhibited by all hummingbird species in all sugar concentrations, and we summed the aggressive behaviors "expelling", "fighting", "frightening", "expel attempt", "alert" and "vocalizing", and the submissive behaviors "fleeing" and "frightened".
Figure 8 in Monitoring the feeding and parental care behavior of a pair of free-living owls (Tyto furcata) in the nest during the reproductive period in Rio de Janeiro, Brazil
Figure 8. Activities schedule of a Tyto furcata family registered within a urban nest box in Campos dos Goytacazes. Each bar shows the total number of days of the activity.
Figure 7 in Monitoring the feeding and parental care behavior of a pair of free-living owls (Tyto furcata) in the nest during the reproductive period in Rio de Janeiro, Brazil
Figure 7. The average time per day (minutes) dedicated per Tyto furcata adults to teaching the feeding behavior for the brood, from the birth until left the nest. Campos dos Goytacazes, RJ.
Figure 1 in Changes in the feeding behavior and habitat use of the desert hedgehog Paraechinus aethiopicus (Ehrenberg 1832, Eulipotyphla: Erinaceidae), in Saudi Arabia
Figure 1. Comparison of food items in the stomach contents of males and females of the desert hedgehogs P. aethiopicus collected from the five study sites in Saudi Arabia.
Multimodal fish feeding behavior dataset Part 1 (You need download all dataset from Part 2 (https://zenodo.org/records/11060370) and Part 3 (https://zenodo.org/records/11060195))
<p>Multimodal Fish Feeding Intensity Assessment in Aquaculture (The paper you can find on Arxiv: <a href="https://arxiv.org/pdf/2309.05058.pdf" rel="nofollow">https://arxiv.org/pdf/2309.05058.pdf</a>) .</p>
Fig. 2 in Feeding behavior of Diaphorina citri (Hemiptera: Liviidae) and its acquisition of 'Candidatus Liberibacter asiaticus', on huanglongbing-infected Citrus reticulata leaves of several maturity stages
Fig. 2. Visual representation of EPG waveforms E1 (phloem salivation), E2 (phloem ingestion) and G (xylem ingestion) produced by adult Diaphorina citri feeding on HLB-infected Citrus sunki leaves.
Figure 8 in Blood-feeding behavior of Anopheles species (Diptera: Culicidae) in the district of Ilha de Santana, state of Amapá, eastern Brazilian Amazon
Figure 8 Density of Anopheles species, parity rate, and number of malaria cases by month, during 24 months in the district of Ilha de Santana, municipality of Santana, state of Amapá. A and B) Anopheles albitarsis s.l.; C and D) Anopheles braziliensis; E and F) Anopheles darlingi; G and H) Anopheles nuneztovari s.l. The Spearman correlation between density and parity rate was significant for A. albitarsis s.l. (rs = 0.61; p = 0.03), A. braziliensis (rs = 0.80; p = 0.01), A. darlingi (rs = 0.72; p = 0.01) and A. nuneztovari s.l. (rs = 0.74; p = 0.01). Graph with standard deviation bars.
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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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
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.