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47 results for “life history diversity”
Figure 7 in Diversity and life-history traits of wild bees (Insecta: Hymenoptera) in intensive agricultural landscapes in the Rolling Pampa, Argentina
Figure 7. Mean number of (a) above-ground nesting bee individuals, (b) floral specialist bee individuals, (c) oligolectic bee individuals and (d) oil-collecting bee individuals in cropped area (n = 28 points) and semi-natural area (n = 11 points). ns indicates a non-significant result. Asterisks indicate that means are significantly different (Wilcoxon rank sum test, ** = P <0.01). Bars show SEs.
Figure 2 in Diversity and life-history traits of wild bees (Insecta: Hymenoptera) in intensive agricultural landscapes in the Rolling Pampa, Argentina
Figure 2. Semi-natural area of the study site: (a) semi-natural grassland; (b) the stream 'Arroyo Dulce' and its banks (Photos: Violette Le Féon).
Data from: Meroplankton diversity, seasonality and life-history traits across the Barents Sea Polar Front revealed by high-throughput DNA barcoding
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Variation and plasticity in life-history traits and fitness of wild Arabidopsis thaliana populations are not related to their genotypic and ecological diversity
<p>Despite its implications for population dynamics and evolution, the relationship between genetic and phenotypic variation in wild populations remains unclear. Here, we estimated variation and plasticity in life-history traits and fitness of the annual plant <em>Arabidopsis thaliana</em> in two common garden experiments that differed in environmental conditions. We used up to 306 maternal inbred lines from six Iberian populations characterized by low and high genotypic (based on whole-genome sequences) and ecological (vegetation type) diversity. Low and high genotypic and ecological diversity was found in edge and core Iberian environments, respectively. Given that selection is expected to be stronger in edge environments and that ecological diversity may enhance both phenotypic variation and plasticity, we expected genotypic diversity to be positively associated with phenotypic variation and plasticity. However, maternal lines, irrespective of the genotypic and ecological diversity of their population of origin, exhibited a substantial amount of phenotypic variation and plasticity for all traits. Furthermore, all populations harbored maternal lines with canalization (robustness) or sensitivity in response to harsher environmental conditions in one of the two experiments. Overall, we conclude that the environmental attributes of each population probably determine their genotypic diversity, but all populations maintain substantial phenotypic variation and plasticity for all traits, which represents an asset to endure in changing environments.</p>
Data and code from "Temporal allele frequency changes in large-effect loci reveal potential fishing impacts on salmon life-history diversity" (Miettinen et al. 2024)
<p>This archive contains code and data files to perform analyses detailed in Miettinen et al. (2024, Evolutionary Applications, https://doi.org/10.1111/eva.13690).</p>
Data from: Remnant salmon life history diversity rediscovered in a highly compressed habitat
<p>Chinook salmon (<em>Oncorhynchus tshawytscha</em>) display remarkable life history diversity underpinning their ability to adapt to environmental change. Maintaining life history diversity is vital to the resilience and stability of Chinook salmon metapopulations, particularly under rapidly changing climates. However, the conditions that promote life history diversity are rapidly disappearing, as anthropogenic forces promote homogenization of habitats and genetic lineages. In this study, we use the highly modified Yuba River in California to understand if distinct genetic lineages and life history still exist, despite reductions in spawning habitat and hatchery practices that have promoted introgression. There currently is a concerted effort to protect federally listed spring run populations, given that few wild populations still exist. Despite this, we lack a comprehensive understanding of the genetic and life history diversity of Chinook salmon present in the Yuba River system. To understand this diversity, we collected migration timing data and GREB1L genotypes from hook-and-line, acoustic tagging, and carcass surveys of Chinook salmon in the Yuba River between 2009-2011. Variation in the GREB1L region of the genome is tightly linked with run timing in Chinook salmon throughout the range, but the relationship between this variation and entry on spawning grounds is little explored in the Central Valley. We found that the date Chinook salmon crossed the lowest barrier to Yuba River spawning habitat (Daguerre Point Dam) was tightly correlated with their GREB1L genotype. Importantly, our study confirms that ESA-listed spring run Chinook salmon are spawning in the Yuba River, promoting a portfolio of life history and genetic diversity, despite spawning in a compressed habitat. This work highlights the need to identify and protect this life history diversity in heavily impacted systems to maintain healthy Chinook salmon metapopulations in those systems. Without this, we run the risk of losing the last vestiges of important variation.</p>
Ontogenetic variation in the marine foraging of Atlantic salmon functionally links genomic diversity with a major life history polymorphism
<p>The ecological role of heritable phenotypic variation in free-living populations remains largely unknown. Knowledge of the genetic basis of functional ecological processes can link genomic and phenotypic diversity, providing insight into polymorphism evolution and how populations respond to environmental change. By quantifying the marine diet, of sub-adult Atlantic salmon, we assessed how foraging behavior changes along the ontogeny, and in relation to genetic variation in two loci with major effect on age-at-maturity (<em>six6</em> and <em>vgll3</em>). We used a two-component, zero-inflated negative binomial model to simultaneously quantify foraging frequency (zero-inflation components) and foraging outcome (count component), separately for fish and crustaceans in the diet. We found that older salmon forage for both prey types more actively (as evidenced by increased foraging frequency), but with a decreased efficiency (as evidenced by fewer prey items in the diet), suggesting an age-dependent shift in foraging dynamics. The <em>vgll3</em> locus was linked to age-dependent changes in foraging behavior: younger salmon with <em>vgll3<sup>LL</sup></em> (the genotype associated with late maturation) tend to forage crustaceans more often than those with <em>vgll3<sup>EE</sup></em> (the<em> </em>genotype associated with early maturation), while the pattern was reversed in older salmon. <em>Vgll3<sup> LL</sup></em> genotype was also linked to marginal increase in fish acquisition especially in younger salmon, while <em>six6</em> was not a factor explaining the diet variation. Our results suggest a functional role for variation in marine feeding behavior linking genomic diversity at <em>vgll3</em> with age-at-maturity among salmon, with potential age-dependent trade-offs maintaining the genetic variation. A shared genetic basis between dietary ecology and age-at-maturity likely subjects Atlantic salmon populations to evolution induced by bottom-up changes in marine productivity.</p>
Datasets and R script to replicate the theoretical modeling from the article entitled Multiple hosts, multiple impacts: the role of vertebrate host diversity in shaping mosquito life history and pathogen transmission
<p>Datasets and R script to replicate the theoretical modeling from the article entitled "<strong> </strong>Multiple hosts, multiple impacts: the role of vertebrate host diversity in shaping mosquito life history and pathogen transmission" by Vantaux A., Moiroux N., Dabire K. R., Cohuet A., Lefevre T. 2023</p>
Datasets and R script to replicate the statistical analyses from the article entitled Multiple hosts, multiple impacts: the role of vertebrate host diversity in shaping mosquito life history and pathogen transmission
<p>Datasets and R script to replicate the statistical analyses from the article entitled " Multiple hosts, multiple impacts: the role of vertebrate host diversity in shaping mosquito life history and pathogen transmission " by Vantaux A., Moiroux N., Dabire K. R., Cohuet A., Lefevre T. 2023</p>
Data from: Individual life histories: Neither slow nor fast, just diverse
<p><span>The slow-fast continuum is known to structure variation in life-history strategies across species. Within populations, it is also assumed to structure individual life histories, yet evidence of its existence remains unclear. We formally assessed the presence of a slow-fast continuum of life histories both within populations and across species using detailed individual-based data for 17 bird and mammal species with contrasting life histories. We estimated adult lifespan, age at first reproduction, breeding frequency and fecundity, and identified the main axes of variation using Principal Component Analyses. The slow-fast continuum was the main axis of life-history variation across species, but within populations individual variation did not follow the slow-fast continuum in any species. This suggests that individual life histories are neither slow nor fast, but rather follow an idiosyncratic pattern across species because of relative differences in the importance of processes such as stochasticity, density dependence, and variation in individual performance.</span></p>
Data from: Individual life histories: Neither slow nor fast, just diverse
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Variation and plasticity in life-history traits and fitness of wild Arabidopsis thaliana populations are not related to their genotypic and ecological diversity
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Data from: Remnant salmon life history diversity rediscovered in a highly compressed habitat
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Ontogenetic variation in the marine foraging of Atlantic salmon functionally links genomic diversity with a major life history polymorphism
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Life history traits in two Drosophila species differently affected by microbiota diversity under lead exposure
<p><em>We investigated the influence of population origin and heavy metal exposure to the diversity of microbiota in two species, Drosophila melanogaster and Drosophila subobscura grown in laboratory on lead (II) acetate (Pb(CH3COO)<sub>2</sub>) saturated substrate. The composition of microbiota in larvae and adults was determined by sequencing (NGS) of the V3-V4 variable regions of the 16S rRNA gene.</em></p>
FIGURES 71–74 in The oak gall wasps of Israel (Hymenoptera, Cynipidae, Cynipini) - diversity, distribution and life history
FIGURES 71–74. Galls on various Quercus species. 71. Andricus miriami, sexual generation on Quercus libani; 72. Same, old gall; 73. Plagiotrochus razeti, asexual generation on Quercus calliprinos; 74. Plagiotrochus quercusilicis, sexual generation on Quercus calliprinos.
FIGURES 59–64 in The oak gall wasps of Israel (Hymenoptera, Cynipidae, Cynipini) - diversity, distribution and life history
FIGURES 59–64. Galls on Quercus ithaburensis. 59. Chilaspis israeli, asexual generation; 60–61. Cerroneuroterus lanuginosus, asexual generation; 62. Cerroneuroterus gyulaigaraiae, asexual generation; 63. Andricus sp. nr. istvani, sexual generation; 64. Dryocosmus mikoi, sexual generation.
FIGURES 65–70 in The oak gall wasps of Israel (Hymenoptera, Cynipidae, Cynipini) - diversity, distribution and life history
FIGURES 65–70. Galls on various Quercus species. 65. Andricus sp. nr. quercusradicis, sexual generation on leaf of Quercus ithaburensis; 66. Neuroterus anthracinus, asexual generation on Quercus ithaburensis; 67. Andricus multiplicatus, sexual generation on Quercus libani; 68. Andricus melikai, sexual generation on Quercus libani; 69. Andricus sp. nr. amenti, sexual generation on Quercus libani; 70. Cerroneuroterus sp. nr. lanuginosus, asexual generation on Quercus libani.
FIGURES 47–52 in The oak gall wasps of Israel (Hymenoptera, Cynipidae, Cynipini) - diversity, distribution and life history
FIGURES 47–52. Sexual generation galls on Quercus ithaburensis. 47. Andricus cecconii; 48. Same, old gall; 49. Andricus grossulariae, young galls; 50. Andricus grossulariae, old galls (arrow); 51. Andricus vindobonensis; 52. Andricus coriarius.
FIGURES 53–58 in The oak gall wasps of Israel (Hymenoptera, Cynipidae, Cynipini) - diversity, distribution and life history
FIGURES 53–58. Galls on Quercus ithaburensis. 53. Pseudoneuroterus sp. 2, sexual generation; 54. Cerroneuroterus lanuginosus, sexual generation; 55. Pseudoneuroterus macropterus, sexual generation; 56. Pseudoneuroterus sp. 1, sexual generation; 57. Pseudoneuroterus saliens, sexual generation; 58. Pseudoneuroterus saliens, asexual generation.
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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.