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199 results for “life-history traits”
Figure 1c from: Liversage K, Byrne M (2018) A note on life-history traits and conservation concerns for viviparous Australian seastars (Parvulastra parvivipara and P. vivipara). Research Ideas and Outcomes 4: e29766. https://doi.org/10.3897/rio.4.e29766
Figure 1c Photographs from P. parvivipara and P. vivipara habitat, and graph of P. vivipara population trends. - Photograph of P. vivipara during 1992 at Pit Water. Populations have become reduced in subsequent years which may be associated with increased siltation and overgrowth from encrusting species (bar = 5 cm).
Fig. 2. Plots A-B in Adaptations, life-history traits and ecological mechanisms of parasites to survive extremes and environmental unpredictability in the face of climate change
Fig. 2. Plots A-B. Hypothetical thermal curves of the free-living stages of two parasite populations with different thermal adaptation histories and similar thermal optimum (highest point in the curve). The blue curve represents a population adapted to a highly variable environment and the orange curve a population adapted to a less variable environment. The dashed black line is a hypothetical current mean temperature in the environment and the dashed grey line represents an increased mean temperature as a consequence of climate change. In plot A, the historical temperature sits close to the thermal optimum in both populations, and an increase in temperature results in a decrease in parasite performance, which is greater for the parasite adapted to the less variable environment. In plot B, the historical temperature is well below the thermal optimum of both parasites, and an increase in temperature results in improved performance for both parasites. In both scenarios, an increase in mean temperature causes a much higher relative change in performance in the population from the less variable environment as indicated in the difference in size among the shade areas. Plot C shows the hypothetical temperature and thermal development ranges for the free-living stages of parasites inhabiting three different latitudes. The temperature range increases with latitude but the development range of parasites does not because, although the thermal range in high latitudes is wider, a large portion of this range occurs <0 ◦C. While parasites from high latitudes might be highly resistant to freezing temperatures, they are also more vulnerable to high temperatures. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 1 in Adaptations, life-history traits and ecological mechanisms of parasites to survive extremes and environmental unpredictability in the face of climate change
Fig. 1. Schematic of two types of life cycles of parasitic nematodes highlighting stage-specific interactions with the environment and hosts, and adaptations to cope with extreme environmental conditions: A) direct life cycle and B) specific indirect life cycle of protostrongylid parasites. In red are indicated the developmental stages of the parasite. The performance (e.g., survival rate, development rate) of developmental stages in the orange area is directly influenced by changes in environmental conditions. Developmental stages in light blue area are indirectly influenced by environmental conditions experienced by the definitive or intermediate hosts. The effect of the environment on the L3 of protostrongylids can be direct or indirect depending if the L3 migrates out of the intermediate host (direct) or if the L3 remains in the intermediate host (indirect). In the inner triangles, examples of stage-specific adaptations to cope with extremes are indicated. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Figure 1 in Interspecific differences in early life-history traits in crested newts (Triturus cristatus superspecies, Caudata, Salamandridae) from the Balkan Peninsula
Figure 1. Larval growth rate of four Triturus species.
Dataset for: Spatial and environmental effects on Coho Salmon life-history trait variation
<p>Adult size, egg mass, fecundity and mass of gonads are affected by trade-offs between reproductive investment and environmental conditions shaping the evolution of life-history traits among populations for widely distributed species. Coho salmon <i>Oncorhynchus kisutch</i> have a large geographic distribution and different environmental conditions are experienced by populations throughout their range. We examined the effect of environmental variables on female size, egg size, fecundity, and reproductive investment of populations of Coho Salmon from across British Columbia using an information theoretic approach. Female size increased with latitude and decreased with migration distance from the ocean to spawning locations. Egg size decreased with average intragravel temperature during incubation, migration distance, in larger rivers, but increased in rivers that were lake headed. Fecundity increased with latitude, warmer temperature during the spawning period, and river size, but decreased in rivers that were lake headed compared to rivers with tributary sources. Gonadal somatic index increased with latitude and decreased with migration distance. Latitude of spawning grounds, migratory distance and temperatures experienced by a population, but also hydrologic features – river size and headwater source – are influential in shaping patterns of reproductive investment, particularly egg size. The lack of an effect of latitude on egg size suggest that local optima for egg size may drive the positive relationship between egg number and latitude – a pattern that is partially off-set by larger female size and gonadal somatic index with latitude.</p>
Figure 6 from: Briones-Fourzán P (2014) Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 289-311. https://doi.org/10.3897/zookeys.457.6669
Figure 6 - Diet of Panulirus argus and Panulirus guttatus from Puerto Morelos, Mexico. For each food item the index of relative importance (IRI) is estimated as IRI = (% frequency × % weight)/100. (Data from Colinas-Sánchez and Briones-Fourzán 1990).
Figure 3 from: Briones-Fourzán P (2014) Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 289-311. https://doi.org/10.3897/zookeys.457.6669
Figure 3 - Diet of Panulirus gracilis and Panulirus inflatus from Zihuatanejo, Mexico. For each food item the index of relative importance (IRI) is estimated as IRI = (% frequency × % weight)/100. (Data from Lozano-Álvarez and Aramoni-Serrano 1996).
Figure 2 from: Briones-Fourzán P (2014) Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 289-311. https://doi.org/10.3897/zookeys.457.6669
Figure 2 - Differences in some life-history traits between Panulirus gracilis and Panulirus inflatus from Zihuatanejo, Mexico. A carapace length (CL) distribution (n Panulirus gracilis: 2162, n Panulirus inflatus: 1873) B mean size C growth rate of males (mm CL week–1, n Panulirus gracilis: 148, n Panulirus inflatus: 34) D brood size (number of eggs per clutch) versus CL relationship. Error bars denote 95% confidence intervals. (Data from A, B Briones-Fourzán and Lozano-Álvarez 1992, C Briones-Fourzán and Lozano-Álvarez 2003, D Gracia 1985, Fernández-Lomelín 1992).
Figure 5 from: Briones-Fourzán P (2014) Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 289-311. https://doi.org/10.3897/zookeys.457.6669
Figure 5 - Differences in some life-history traits between Panulirus argus and Panulirus guttatus from Puerto Morelos, Mexico. A carapace length (CL) distribution (n Panulirus argus: 717, n Panulirus guttatus: 450) B mean size C growth rate of males (mm CL week–1, n Panulirus argus: 148, n Panulirus guttatus: 57) D brood size (number of eggs per clutch) versus CL relationship. Error bars denote 95% confidence intervals. (Data from A, B Lozano-Álvarez et al. 2007, Briones-Fourzán and Lozano-Álvarez 2013, C Negrete-Soto et al. 2002, D Fonseca-Larios and Briones-Fourzán 1998, Briones-Fourzán and Contreras-Ortiz 1999).
Figure 1 from: Briones-Fourzán P (2014) Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 289-311. https://doi.org/10.3897/zookeys.457.6669
Figure 1 - Geographic distribution of the two pairs of sympatric Panulirus species addressed in the text.
Figure 4 from: Briones-Fourzán P (2014) Differences in life-history and ecological traits between co-occurring Panulirus spiny lobsters (Decapoda, Palinuridae). In: Wehrtmann IS, Bauer RT (Eds) Proceedings of the Summer Meeting of the Crustacean Society and the Latin American Association of Carcinology, Costa Rica, July 2013. ZooKeys 457: 289-311. https://doi.org/10.3897/zookeys.457.6669
Figure 4 - Potential ecological interactions between Panulirus gracilis and Panulirus inflatus in a rocky site ("Site A") in Zihuatanejo, Mexico. A lobster density (number of individuals ha–1) B relative abundance of molluscs (percentage of molluscs in benthic samples) C condition factor of lobsters. Error bars denote 95% CI. (Data from A Lozano et al. 1982, B Aramoni-Serrano 1982, C Lozano-Álvarez and Aramoni-Serrano 1996).
Data from: Mitochondrial DNA as a tool for reconstructing past life-history traits in mammals
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Data from: Variation and correlations between sexual, asexual and natural enemy resistance life-history traits in a natural plant pathogen population
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Data from: Temporal genetic stability and high effective population size despite fisheries-induced life-history trait evolution in the North Sea sole.
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Data from: Immune deployment increases larval vulnerability to predators and inhibits adult life-history traits in a dragonfly
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Data from: Sex-dependent evolution of life-history traits following adaptation to climate warming
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Data from: Reconstructing the phylogenetic history of long-term effective population size and life-history traits using patterns of amino acid replacement in mitochondrial genomes of mammals and birds
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Data from: The evolution of alternative developmental pathways: footprints of selection on life-history traits in a butterfly
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Data from: Effects of variation in resource acquisition during different stages of the life cycle on life-history traits and trade-offs in a burying beetle
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Data from: Hormonal, behavioral, and life-history traits exhibit correlated shifts in relation to population establishment in a novel environment
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.