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518 results for “life history traits”
Figure 1 in Life history traits in Bufotes variabilis (Pallas, 1769) from 2 different altitudes in Turkey
Figure 1. Cross-sections at the diaphysis level of a phalanx of a male (A) and a female (B) of Bufotes variabilis individuals (m.c. = marrow cavity, e.b. = endosteal bone). The LAGs are indicated by black arrows.
Fig. 3 in Adaptations, life-history traits and ecological mechanisms of parasites to survive extremes and environmental unpredictability in the face of climate change
Fig. 3. Flow chart outlining factors that can influence the response of parasites to climate change.
Fig. 4 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient
Fig. 4. Changes in reproductive traits of female Heterandria bimaculata along an elevational gradient in Cusuco National Park, Honduras in summer 2013. Points represent actual values. Dashed lines represent fitted means from linear mixed models, accounting for nested effects of individual variability within sites, and total length of individuals. No fitted line is presented for reproductive allotment because this variable did not change significantly along the elevational gradient.
Fig. 3 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient
Fig. 3. Changes in physicochemical parameters of streams along an elevation gradient in Cusuco National Park, Honduras in summer 2013.
Fig. 2 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient
Fig. 2. Relationships between male and female body weights, embryo counts, ovary weights and total length of Heterandria bimaculata in Cusuco National Park, Honduras in summer 2013.
Fig. 1 in Reproductive life history of Heterandria bimaculata (Heckel, 1848) (Poeciliinae: Poeciliidae) in the Honduran interior highlands: trait variation along an elevational gradient
Fig. 1. (A) Mainland Central America, with a square representing the inset of (B), Cusuco National Park (gray) within the río Motagua (Guatemala) and río Chamelecón/Ulúa (Honduras) basins. (C) Sites (black dots) sampled from upstream to downstream on 6 tributaries to the río Motagua (west side) and río Ulua (east side) in Cusuco National Park, Honduras, Central America.
Lifespan Fecundity data for The Combined Effects of Macronutrient Ratios and the chico1 Variant on Life History Traits in Drosophila melanogaster
<p>Data sheets for Lifespan Fecundity data for The Combined Effects of Macronutrient Ratios and the chico1 Variant on Life History Traits in Drosophila melanogaster. Chico_life_extention_ds and Chico_CP_life_extention_REP_ds are data sheets from project one that keep track of deaths that occurred in the experiment. Deaths of males, deaths of females, and censors were recorded. Hour = hour of collection, Minute = minute of collection, Days_alive = number of days flies have been inside the vials after initial collection, last_flip = day of last time flies were flipped, Label = id of the vial, repl = replicant group, deadF = number of females that died before that days collection, deadM = number of males that died before each collection, cens = number of censors before each collection, counter = person who counted the flies, Year = year of collection, Month = month of collection, Day = day of collection, notes = observations during collection.</p> <p> LDF_flipping_and_counting_data is a data sheet keeping track of deaths that occured in project two. Deaths of females, males, and censors were recorded. Month = month of collection, Day = day of collection, Year = year of collection, Days_alive = number of days flies have been inside vials, Flipped = were the flies flipped with Y meaning Yes and N meaning No, flipper = person who flipped the flies, DeadF = number of dead females before collection, DeadM = number of dead males before collection, Censor = number of censors before collection, Hour = hour of collection, Minute = minute of collection, Label = id of the vial, Notes = observations during collection.</p> <p>LDF_egg_counting_data is a data sheet keeping track of the number of eggs counted on every image in experiment 2. Image_ID i= image identification number, Label = id of the vial, Day = day of collection, Month = month of collection, Year = year of collection, Counter = person who counted the eggs, Egg_total = number of eggs counted on the photo, notes = observations during collection.</p> <p>Images.zip is a zipped folder of all images that were used to count the number of eggs laid over a ~16-hour time period once per week until the death of all flies in the vial. These images are organized by the date the picture was taken. These pictures were counted using the cell counter extension for ImageJ and counted. Counts were recorded in the LDF_egg_counting_data data sheet.</p>
FIGURE 4 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon
FIGURE 4 | Standard length frequency histograms and the corresponding von Bertalanffy growth function for Calophysus macropterus (sexed and unsexed individuals combined) in (A, B) the upper Putumayo River and in (C) the AMU (the Amazonas, lower Marañón and Ucayali rivers).
FIGURE 3 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon
FIGURE 3 | Mean monthly GSI values (circles) of Calophysus macropterus females between 2013 and 2017 in relation with the water level (dotted line) in the upper Putumayo River (A) and the Amazonas, lower Marañón and Ucayali rivers (B).
FIGURE 2 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon
FIGURE 2 | Size frequency distribution of Calophysus macropterus females and males caught over the study period in the Putumayo River (A) and the Amazonas, lower Marañón and Ucayali rivers (B).
FIGURE 1 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon
FIGURE 1 | Geographic location of biological monitoring points for Calophysus macropterus at Puerto Leguízamo in the Putumayo River (Colombia) and Iquitos (Amazonas, lower Marañón and Ucayali rivers, AMU).
FIGURE 5 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon
FIGURE 5 | Standard length at first sexual maturity for males (black triangles) and females (white circles) of Calophysus macropterus (A) in the upper Putumayo River and (B) in AMU (the Amazonas, lower Marañón and Ucayali rivers).
FIGURE 7 in Life history trait variations and population dynamics of Calophysus macropterus (Siluriformes: Pimelodidae) in two river systems of the Colombian and Peruvian Amazon
FIGURE 7 | Standard length-converted catch curves (SL) and mortality estimates for Calophysus macropterus (A) females, (B) males and all individuals (sexed and unsexed) combined (C) in the Amazonas, lower Marañón and lower Ucayali rivers, calculated from the VBGF parameters at a mean temperature of 27°C. Z, M and F represent the instantaneous rates of total, natural and fishing mortality, respectively. E is the exploitation rate (E = F.Z-1). Black dots = data points in the curve on which the regression was fitted.
Raw data drosophila parasitoids sampled in 2008 life history traits
<p>Sampling of parasitoids in 2008 and 2011</p> <p>Life history and physiological traits measurements at different temperatures : developement time, fecundity, mass, metabolic rate, etc.</p> <p> </p>
Data from: Distinct patterns of inheritance shape life-history traits in steelhead trout
<p>Life-history variation is the raw material of adaptation, and understanding its genetic and environmental underpinning is key to designing effective conservation strategies. We used large-scale genetic pedigree reconstruction of anadromous steelhead trout (<em>Oncorhynchus</em> <em>mykiss</em>) from the Russian River, California, USA to elucidate sex-specific patterns of life-history traits and their heritability. SNP data from adults returning from sea over a 14-year period were used to identify 13,474 parent-offspring trios. These pedigrees were used to determine age structure, size distributions, and family sizes for these fish, as well as to estimate the heritability of two key life-history traits, spawn date and age at maturity (first reproduction). Spawn date was highly heritable (h<sup>2</sup> = 0.73) and had a cross-sex genetic correlation near unity. We provide the first estimate of heritability for age at maturity in ocean-going fish from this species and found it to be high heritable (h<sup>2</sup> from 0.29–0.62, depending upon sex and calculation), with a much lower genetic correlation across sexes. We also evaluated genotypes at a migration-associated inversion polymorphism and found sex-specific correlations with age at maturity. The significant heritability of these two key reproductive traits in these imperiled fish, and their patterns of inheritance in the two sexes, is consistent with predictions of both natural and sexually antagonistic selection (sexes experience opposing selection pressures). This emphasizes the importance of anthropogenic factors, including hatchery practices and ecosystem modifications, in shaping the fitness of this species, thus providing important guidance for management and conservation efforts.</p>
Evolution in interacting species alters predator life history traits, behavior and morphology in experimental microbial communities
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Data from: Distinct patterns of inheritance shape life-history traits in steelhead trout
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Microplastic additions modulate intraspecific variability in root traits and mycorrhizal responses across root-life history strategies
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Thermal performance of Aedes sierrensis life history traits for populations collected across the species range
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Effects of genetic vs. environmental quality on condition-dependent morphological and life history traits in a neriid fly
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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