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84 results for “group selection”
Group music selections
<p>TW Chirinda: </p> <ul> <li><a href="https://youtu.be/3mwiO5st-us" target="_blank" rel="noopener">Stronger- Kanye West</a></li> <li><a href="https://youtu.be/1k8craCGpgs" target="_blank" rel="noopener">Don't Stop Believin' - Journey </a></li> </ul> <p>TJ Dixon:</p> <ul> <li><a href="https://youtu.be/MzCLLHscMOw" target="_blank" rel="noopener">Break even - The Script </a></li> <li><a href="https://youtu.be/b_0oCxfL9cM" target="_blank" rel="noopener">Sam Fender - Will We Talk?</a></li> </ul> <p>N Wahl: </p> <ul> <li><a href="https://youtu.be/wXhTHyIgQ_U" target="_blank" rel="noopener">Circles - Post Malone </a></li> <li><a href="https://youtu.be/MoN9ql6Yymw" target="_blank" rel="noopener">Daylight - David Kaushner </a></li> </ul>
Cell-free Synthesis of Proteins with Selectively 13C-Labelled Methyl Groups from Inexpensive Precursors- Dataset
<p>NMR Spectra relating to the publication:<br> <br> Cell-free Synthesis of Proteins with Selectively 13C-Labelled Methyl Groups from Inexpensive Precursors.</p> <p>Spectra are labelled as such in the folder name and in the description.</p>
Data from: Social group composition modulates the role of last male sperm precedence in post-copulatory sexual selection
<p>In many species, the order in which males mate with a female explains much of the variation in paternity arising from post-copulatory sexual selection. Research in <em>Drosophila</em> suggests that mating order may account for the majority of the variance in male reproductive success. However, the effects of mating order on paternity bias might not be static but could potentially vary with social or environmental factors. To test this idea, we used an existing dataset, collated from an experiment we previously published (Morimoto et al. 2016), with the addition of unpublished data from the same experiment. These previous experiments manipulated larval density in <em>Drosophila</em> <em>melanogaster</em> which generated variation in male and female body size, assembled groups of individuals of different sizes, and measured the mating success and paternity share of focal males. The data presented here provide information on each focal male's mating order and the frequency in which focal males remated with the same females ('repetitive matings'). We combined this information with our previously reported focal male reproductive success to partition variance in paternity into male mating order and repetitive matings across groups that differed in the body size composition of males and females. We found, as expected, that male mating order explained a considerable portion of the variance in male paternity. However, we also found that the impact of male mating order on male paternity was influenced by the body size composition of groups. Specifically, males that tended to mate last had a greater paternity advantage, and displayed lower variance, in groups containing a heterogenous mixture of male body sizes than in groups with a single male body size. Repetitive mating only had a minor contribution to the variance in male paternity share across all experiments. Overall, our findings contribute to the growing body of research showing that post-copulatory sexual selection is subject to socio-ecological influences.</p>
No evidence for kin selection as an explanation for social group formation in clown anemonefish
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Data from: Behavioral hypervolumes of predator groups and predator-predator interactions shape prey survival rates and selection on prey behavior
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Feather evolution following flight loss in crown group birds: relaxed selection and developmental constraints
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Data from: Social group composition modulates the role of last male sperm precedence in post-copulatory sexual selection
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Strength of sexual selection and sex roles vary between social groups in a coral reef cardinalfish
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Genetic relatedness in social groups of the emerald coral goby Paragobiodon xanthosoma creates potential for weak kin selection
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Nightly selection of resting sites and group behavior reveal anti-predator strategies in giraffe
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Size-selective mortality induces evolutionary changes in group risk-taking behavior and the circadian system in a fish
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Living in mixed-sex groups limits sexual selection in coloration and pelage appendages in bovids
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Data from: Kin selection, not group augmentation, predicts helping in an obligate cooperatively breeding bird
Kin selection theory has been the central model for understanding the evolution of cooperative breeding, where non-breeders help bear the cost of rearing young. Recently the dominance of this idea has been questioned; particularly in obligate cooperative breeders where breeding without help is uncommon and seldom successful. In such systems, the direct benefits gained through augmenting current group size have been hypothesised to provide a tractable alternative (or addition) to kin selection. However, clear empirical tests of the opposing predictions are lacking. Here, we provide convincing evidence to suggest that kin selection and not group augmentation accounts for decisions of whether, where and how often to help in an obligate cooperative breeder, the chestnut-crowned babbler (Pomatostomus ruficeps). We found no evidence that group members base helping decisions on the size of breeding units available in their social group, despite both correlational and experimental data showing substantial variation in the degree to which helpers affect productivity in units of different size. By contrast, 98% of group members with kin present helped, 100% directed their care towards the most related brood in the social group and those rearing half/full-sibs helped approximately 3 times harder than those rearing less/non-related broods. We conclude that kin selection plays a central role in the maintenance of cooperative breeding in this species, despite the apparent importance of living in large groups.
Data from: Improving PCR detection of prey in molecular diet studies: importance of group-specific primer set selection and extraction protocol performances
While morphological identification of prey remains in feces of predators is the method most commonly used to study trophic interactions, many studies indicate that this method does not detect all consumed prey. Polymerase Chain Reaction based methods are increasingly used to detect prey DNA in the predator food bolus and have proved themselves efficient, with high accuracy. When studying complex diet samples, the extraction of total DNA is a critical step, as PCR inhibitors may be co-extracted. Another critical step consist in carefully select suitable group-specific primer sets that should only amplify prey DNA from the targeted taxon. In this study, the food boluses of five Rattus rattus and seven Rattus exulans were analyzed using both morphological and molecular methods. We tested a panel of 30 PCR specific primer sets targeting Bird, Invertebrate and Plant sequences and four were finally selected to be use as group-specific primer pairs in PCR protocols. The performances of four DNA extraction protocols (QIAamp DNA stool mini kit, DNeasy mericon food kit and two CTAB-based methods) were compared using four variables: DNA concentration, A260/A280 absorbance ratio, food compartment analyzed (stomach or fecal contents), total number of prey specific PCR amplification per sample. Our results clearly indicate that the A260/A280 absorbance ratio, which varies between extraction protocols, is positively correlated to the number of PCR amplifications of each prey taxon. We recommend using the DNeasy mericon food kit (Qiagen), which yielded results very similar to those achieved with the morphological approach.
FIGURE 3 in Diagnostic clues for identification of selected species of the Micropsectra atrofasciata group, with description of M. uva sp. nov. from Croatia (Diptera: Chironomidae: Tanytarsini)
FIGURE 3. Hypopygial median and inferior volsellae (ventral view) - diagnostic structures in male of Micropsectra uva sp. nov. (D) and three close species of the Micropsectra atrofasciata group: M. pallidula (Meigen) (A), M. schrankelae Stur et Ekrem (B), M. sofiae Stur et Ekrem (C).
FIGURE 1 in Diagnostic clues for identification of selected species of the Micropsectra atrofasciata group, with description of M. uva sp. nov. from Croatia (Diptera: Chironomidae: Tanytarsini)
FIGURE 1. Micropsectra uva sp. nov., male. Wing, showing slight variation (photographed using the Nomarski DIC).
FIGURES 13–18. Sulawesi Onthophagus species, dorsal forebody. 13, O. bisscrutator, holotype male from Toraut. 14, O. scrutator, male from Moramo. 15, O. bongkudai, holotype male from Moajat 16, paratype female. 17, O. sangirensis, male from Toraut.18, O. sangirensis, female from Tangkoko. Scale lines approximately 1 in Sulawesi Onthophagus: seven new species in select groups (Coleoptera: Scarabaeidae: Scarabaeinae)
FIGURES 13–18. Sulawesi Onthophagus species, dorsal forebody. 13, O. bisscrutator, holotype male from Toraut. 14, O. scrutator, male from Moramo. 15, O. bongkudai, holotype male from Moajat 16, paratype female. 17, O. sangirensis, male from Toraut.18, O. sangirensis, female from Tangkoko. Scale lines approximately 1 mm.
FIGURE 82 in Sulawesi Onthophagus: seven new species in select groups (Coleoptera: Scarabaeidae: Scarabaeinae)
FIGURE 82. Map of Sulawesi and nearby islands with indication of collecting regions mentioned in Material examined sections. In North-South arrangement, as follows: Sangihe Islands, Tangkoko Nature Reserve, Manado Region, Mount Ambang Nature Reserve, Dumoga-Bone National Park, Palu Region, Lore-Lindu National Park, Banggai District, Sula Islands, Kendari District, and Kolaka District.
FIGURES 19–24 in Sulawesi Onthophagus: seven new species in select groups (Coleoptera: Scarabaeidae: Scarabaeinae)
FIGURES 19–24. Sulawesi Onthophagus species, dorsal, oblique (20 only) forebody. 19, O. sangirensis, male from Manado. 20, O. holosericus, female from Kendari, oblique. 21, O. holosericus, male from Marena. 22, O. holosericus, female from Marena. 23, O. begoniophilus, holotype male major from Ambang. 24, O. begoniophilus, paratype male medium from Ambang. Scale lines approximately 1 mm.
FIGURES 9–12. Sulawesi Onthophagus species, oblique habitus. 9, O. begoniophilus, paratype male from Ambang. 10, O. annulopunctatus, paratype male from Mogogonipa. 11, O. hollowayi, holotype male from Dumoga. 12, O in Sulawesi Onthophagus: seven new species in select groups (Coleoptera: Scarabaeidae: Scarabaeinae)
FIGURES 9–12. Sulawesi Onthophagus species, oblique habitus. 9, O. begoniophilus, paratype male from Ambang. 10, O. annulopunctatus, paratype male from Mogogonipa. 11, O. hollowayi, holotype male from Dumoga. 12, O. seseba, holotype male from Batui (pygidium up). Scale lines approximately 1 mm.
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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.