• Furthermore, functional variation within a species and its populations can help buffer against harmful environmental changes. (fu-berlin.de)
  • Trait variability within species can be observed from differences among populations, and between‐ and within individuals. (fu-berlin.de)
  • There has been extensive study of upper thermal tolerance limits among fish species but how intraspecific variation in tolerance may be affected by habitat characteristics and evolutionary history has not been considered. (biorxiv.org)
  • Intraspecific variation is a primary determinant of species vulnerability to climate change, with implications for global patterns of impacts of ongoing warming. (biorxiv.org)
  • Using published critical thermal maximum (CT max ) data on 203 marine and freshwater fish species, we found that intraspecific vsariation in upper thermal tolerance varies according to a species' latitude and evolutionary history. (biorxiv.org)
  • Notably, freshwater tropical species have lower variation in tolerance than temperate species in the northern hemisphere, which implies increased vulnerability to impacts of thermal stress. (biorxiv.org)
  • The extent of variation in CT max among fish species has a strong phylogenetic signal, which may indicate a constraint on evolvability to rising temperatures in tropical fishes. (biorxiv.org)
  • The extent of variation in functional traits within species, particularly of physiological tolerances, is expected to have a profound influence on their vulnerability to global change 12 - 15 . (biorxiv.org)
  • During that time, 14 different prey species' populations increased. (ipl.org)
  • Priority-setting is especially important for geographically widespread species with distinct populations subject to multiple threats that operate on different spatial and temporal scales. (plos.org)
  • Thus, assessing the status of and threats to distinct population segments or management units of these species are critical steps toward building sound frameworks for setting conservation priorities [3] . (plos.org)
  • To conduct an initial assessment of populations of sicklefin lemon and the blacktip reef sharks in a remote coastal ecosystem and investigate how natural resources are partitioned between and within these species. (saveourseas.com)
  • This intraspecific variation facilitates the successful coexistence of individuals of one species. (saveourseas.com)
  • Examine stomach contents and take tissue samples to determine resource partitioning between species and whether intraspecific variation exists. (saveourseas.com)
  • For any given species, plant populations originating from different environments usually differ in their responses to the same environmental change. (aff.org.au)
  • Overall, TE was a more effective climate factor than CE in exposing genotypic variation in this woody species. (aff.org.au)
  • The average Nei's genetic distance ( D ) was 0.02 (range = 0-0.12) between conspecific populations and 0.74 (range = 0.11-1.87) between species. (stroudcenter.org)
  • 2003 ). DNA barcodes can provide information on genetic variation within and between species, rapidly assign taxonomic status across divergent lineages (Hebert and Gregory 2005 ), and identify the prey composition of predators' gut contents (Agustí et al. (springer.com)
  • For some time now I develop studies on the biology and ecology of game bird species, for population management and conservation purposes, in insular and continental environments. (up.pt)
  • However, researchers frequently fail to determine the true taxonomic status of some of these populations and attribute them to unidentified or misidentified species. (hindawi.com)
  • However, some populations along the species' range are not recognized as belonging to this taxon, being rather attributed to other taxonomic entities, such as Pseudopaludicola aff. (hindawi.com)
  • Therefore, an integrative taxonomic revision is needed to clarify the distribution range and variation in this species [ 9 ]. (hindawi.com)
  • Also, it is thought that T A imposes selective pressure that gradually shapes the phenotypic responses of populations of a species along geographic clines ( Castañeda et al. (biologists.com)
  • 2011 ), leading to intraspecific variation in physiological traits in widely distributed species. (biologists.com)
  • Profiling injected venom of Conus catus individuals using matrix-assisted laser desorption/ionization-time of flight-mass spectrometry demonstrates that intraspecific variation in the mixture of peptides extends to other species of piscivorous cone snails. (biologists.com)
  • To characterize patterns of genetic and morphological variation and investigate the classification of Pisum , we conducted comprehensive population genetic analyses for 323 accessions from cultivated and wild pea representing three species of Pisum utilizing 34 morphological traits and 87 polymorphic SSR markers. (datadryad.org)
  • Analyses of morphological variation revealed significant differences among the three species. (datadryad.org)
  • We also analyze intraspecific variation and identify the largest known individuals for each species. (altmetric.com)
  • Here, we show that across 12 plant species in two phylogenetic lineages of the Brassicaceae, variation in realized herbivore communities reveals a phylogenetic signal in the uncertainty of attack on individual plants. (biorxiv.org)
  • Variation across plant species in the uncertainty of attack may strongly impact the evolution of such plastic defence strategies. (biorxiv.org)
  • My work focuses on assessing the processes that shape diversity and the ecological implications of variation within microbial species. (exeter.ac.uk)
  • I use a range of approaches (including field sampling, ecological genomics, and lab experimentation) to characterise population-level diversity and to understand how diversity shapes species interactions (e.g. predation) and species responses to environmental variation. (exeter.ac.uk)
  • Species diversity can be inferred using multiple data types, however, results based on genetic data can be at odds with patterns of phenotypic variation. (mdpi.com)
  • The aims of the present study were: 1) to determine the distribution of wild potato species in the Park, and, 2) to determine the size of their populations. (scirp.org)
  • Finally, we explore the dynamics of predator-prey communities in which each population is composed by many species, characterized by their traits. (fapesp.br)
  • Although the spatial and temporal variation of the phenolic signature within species is well documented, it remains unclear whether intraspecific variation is due to genetic differences between individuals or to environmental conditions. (ufz.de)
  • In a silvicultural provenance experiment, beech populations from a wide range of the natural distribution range of the species, including different phylogeographic lineages (site of origin = genetic background), were grown in two geographically distinct common gardens (site of growth = environment). (ufz.de)
  • The genetic diversity of groups of interacting individuals, especially for ecological dominants or habitat-forming species, can have profound effects at the population, community, and ecosystem levels, influencing total biomass, resilience from disturbance, invasion success, and the abundance and diversity of other species. (thekamellab.com)
  • Genetic evidence for natural hybridization between species of dioecious Ficus on island populations. (figweb.org)
  • Variation In A Mutualism: Phenology And The Maintenance Gynodioecy In Two Indian Fig Species. (figweb.org)
  • Additionally, we found PLA[Formula: see text]-like myotoxins in all species except C. petlalcalensis, and crotoxin-like PLA[Formula: see text]s in the southern population of C. godmani. (bvsalud.org)
  • MLST studies showed that local populations of a bacterial species typically consist of discrete clusters of multilocus sequence types called "clonal complexes," rather than a multitude of randomly assorted genotypes ( 2 ). (cdc.gov)
  • It is listed as vulnerable (UICN 2010 - www.uicnredlist.org) and in Brazil it is listed in the same status (MMA 2006), this fact is a result of decreasing population of this species, due to large-scale agriculture and antropic development (Braga, 2003), hunting (Leeuwenberg, 1997), fire (Silveira et al. (bvsalud.org)
  • Increasingly, the collections are also used to extract DNA and thus enable studies of species' relationships, distribution history and population genetics, or to investigate the expression, variation or change of different genes over time. (lu.se)
  • Intraspecific trait variation within natural populations (i.e. intra-population trait variation, IPTV) is the basic source for selection and can have significant ecological consequences. (osti.gov)
  • I am focussing on intraspecific trait variation within and among populations of temperate forest understorey herbs as a result of phenotypic plasticity or genetic diversity. (uni-bremen.de)
  • We analyzed the invasion trend, IPTV and its response to water enrichment, and moisture variability among populations of an annual grass Brachypodium hybridum in California, United States. (osti.gov)
  • 1. Intraspecific trait variability (ITV) maintains functional diversity in populations and communities, and plays a crucial role in ecological and evolutionary processes such as trophic cascades or speciation. (fu-berlin.de)
  • 2. Here, we aimed to (a) measure the relative strength of between‐ and within‐individual effects of body size on ITV over time, and (b) disentangle the trophic changes due to ontogeny from other sources of variability, such as the environment experienced by populations and individual preferences at varying temporal and spatial scales. (fu-berlin.de)
  • Red foxes showed much more evenly distributed movement patterns and a high intraspecific variability in habitat preference, revealing a general preference for woodlands and an avoidance of wetlands. (springer.com)
  • Three factors have been suggested to increase phenotypic variability and thus potentially the resilience of tree populations: intraspecific genetic variability, (micro-)environmental variation, and epigenetic variation. (uni-marburg.de)
  • Overall, we found considerable variability in intraspecific size distributions from strongly left- to strongly right-skewed. (altmetric.com)
  • Sequence variability at ospC is the highest among known genomic loci and is strongly linked to variations at other genome-wide loci, with occasional recombinant genotypes caused by plasmid exchanges ( 16 - 19 ). (cdc.gov)
  • However, the reciprocal influences of variation in environmental conditions and phenotypic trait expression in spreading plant populations are not clearly defined. (osti.gov)
  • CO2], temperature, and water availability) on growth and physiology of woody plant populations originating from contrasting environments, with a focus on the intraspecific variation in their capacity to cope with climate change. (aff.org.au)
  • Indeed, a growing body of literature suggests that epigenetic variation might contribute to local adaptation of natural plant populations. (uni-marburg.de)
  • Marine turtles are widely distributed and exhibit intra-specific variations in population sizes and trends, as well as reproduction and morphology. (plos.org)
  • We use individual life-history traits (birth, death and development rates) and their response to temperature to parametrize the population dynamics model, applying it to two sets of questions: population viability and (temperature-dependant) intra-specific competition. (fapesp.br)
  • Phytoplankton have short generation times, flexible reproduction strategies, large population sizes and high standing genetic diversity, traits that should facilitate rapid evolution under directional selection. (lu.se)
  • Assess population structure, abundance, life history traits, survival rate, growth rate, reproductive growth and genetic relatedness (60 samples) of the sicklefin lemon Negaprion acutidens and blacktip reef shark Carcharhinus melanopterus . (saveourseas.com)
  • 1995. Physiological basis of countergradient variation in growth in the Atlantic silverside (Menidia menidia). (ccri.edu)
  • No intraspecific variation in physiological plasticity was detected under CE or TE, and the interactive effects of CE and TE on intraspecific variation in phenotypic plasticity were also largely absent. (aff.org.au)
  • 2000. Adaptive variation in energy acquisition and allocation among latitudinal populations of the Atlantic silverside. (ccri.edu)
  • Reproductive strategy can also influence the adaptive potential of invasive populations. (plos.org)
  • By cultivating offspring of these populations, we show that both heritable variation and phenotypic plasticity contribute to the observed differences. (datadryad.org)
  • Furthermore, phenotypic changes induced by epigenetic variation can be inherited across several generations (especially across clonal generations), suggesting that variation in DNA methylation might contribute to heritable phenotypic variation and, eventually, to adaptation. (uni-marburg.de)
  • If the frequency of the broad-headed "cannibal" morph in the larvae of the salamander Hynobius retardatus has been evolutionarily maintained at a certain level within a population as a result of local adaptation, variations in its frequency should be found among different populations with environmental variation. (bioone.org)
  • Possessing a broad range of tolerance phenotypes in populations can reduce sensitivity to impacts of environmental stressors, through various proximate ecological mechanisms 12 - 14 . (biorxiv.org)
  • Negative impacts of intensive agriculture on populations have already been reported for several groups of epigeic arthropods (Rushton et al. (springer.com)
  • However, current global extinction risk assessment frameworks do not assess conservation status of spatially and biologically distinct marine turtle Regional Management Units (RMUs), and thus do not capture variations in population trends, impacts of threats, or necessary conservation actions across individual populations. (plos.org)
  • Also ethological studies assist in wildlife improvement and welfare of captive populations. (bvsalud.org)
  • Ethological studies assist in wildlife improvement and welfare of captive populations, contributing to refine management techniques and to report natural history in situ . (bvsalud.org)
  • Although some progress has been made on intraspecific variation in woody plant response to climate change, no studies have looked into the interactive effects of concurrently changing climatic variables on their intraspecific variation in phenotypic plasticity. (aff.org.au)
  • Intraspecific variation in the thermal plasticity of mitochondria in killifish. (biologists.com)
  • 2016. A high-density genetic map reveals variation in recombination rate across the genome of Daphnia magna . (cnrs.fr)
  • To test our hypotheses, we measured the critical thermal minimum (CT min ) and critical thermal maximum (CT max ) of 100 lines of the Drosophila Genetic Reference Panel (DGRP) and used GWAS to identify loci that explain variation in thermal limits. (frontiersin.org)
  • Multilocus sequence typing (MLST) is the use of DNA sequences at multiple housekeeping loci to characterize genetic variations of natural populations of a bacterial pathogen ( 1 , 2 ). (cdc.gov)
  • Where data allows, we analyze spatial and temporal intraspecific size variation. (altmetric.com)
  • Varying degrees of intraspecific ecological divergence were observed across the ten color morph pairs, but most pairs exhibited a consistently parallel ecological and evolutionary trajectory across populations. (biomedcentral.com)
  • Remaining to be tested are how such factors as natural selection, low recombination rate, and genetic drift due to geographic structuring contribute to the formation and maintenance of these clonal complexes in natural bacterial populations ( 3 , 4 ). (cdc.gov)
  • B. burgdorferi sensu stricto intraspecific clonal complexes may differ in their host specificity and degree of human pathogenecity. (cdc.gov)
  • 1997. Latitudinal variation in vertebral number has a genetic basis in the Atlantic silverside, Menidia menidia. (ccri.edu)
  • however, C. godmani and C. tzotzilorum differ significantly between geographically isolated populations. (bvsalud.org)
  • We are quantifying the genetic and kin structures of two North Carolina seagrass populations expressing different life history strategies and to relate these structures to localized variations in resilience. (thekamellab.com)
  • Using Taraxacum officinale and its major native insect root herbivore Melolontha melolontha, we tested whether below ground herbivores drive intraspecific variation in root secondary metabolites. (datadryad.org)
  • Although considerable progress has been made in recent years, the link between epigenetic variation and phenotypic variation remains poorly understood. (uni-marburg.de)
  • The extensive collections are also an invaluable source for studies of morphological variation over time and space. (lu.se)
  • The significance of intraspecific variation in tolerance remains to be explored. (biorxiv.org)
  • However, the extent to which standing genetic variation in thermal tolerance alleles influence dynamic stress responses vs. preparatory processes is unknown. (frontiersin.org)
  • Genetic variation in thermal tolerance is well-documented (e.g. (frontiersin.org)
  • We quantified local adaptation of copper tolerance in a population of the diatom Skeletonema marinoi from a mining-exposed inlet in the Baltic Sea and in a non-exposed population 100 km away. (lu.se)
  • We hypothesized that mining pollution has driven evolution of elevated copper tolerance in the impacted population of S. marinoi. (lu.se)
  • Assays of 58 strains originating from sediment resting stages revealed no difference in the average tolerance to copper between the two populations. (lu.se)
  • As expected, the hyper-tolerant strains enabled rapid evolution of copper tolerance in the mining-exposed population through selection on available strain diversity. (lu.se)
  • The reference population developed tolerance beyond expectations primarily due to slowly developing plastic response in one strain, suggesting that different modes of copper tolerance are present in the two populations. (lu.se)
  • Gas chromatography (GC) analyses of odors from individual flowers showed less intraspecific variation in the odor bouquets of the biologically active compounds as compared to nonactive compounds. (bioone.org)
  • In general, all the predators and prey (regardless of habitat) began with the same amount of population. (ipl.org)
  • For instance, there are a total of six predators (2 had forks, 2 had spoons, and 2 had knives)-regardless of habitat, Meaning each predator contributed to 33% of the population (Tables 1A, 2A). (ipl.org)
  • In the dirt habitat, the population of fork and knifes began to decrease while the population of spoons began to increase. (ipl.org)
  • As for predators in the dirt habitat, the population of pinto bean decreased during the second generation, while the populations of black beans, green beans and white beans slightly increased. (ipl.org)
  • As for prey in the grass habitat, in the second generation, black beans accounted for 16.58% of the population while, green beans accounted for 27.69%, white beans accounted for 29.35% and pinto beans accounted for 26.37% of the population (Table 2B). (ipl.org)
  • Global increases in fishing pressure, habitat loss and biological vulnerability of sharks has resulted in steady population decline. (saveourseas.com)
  • We found nine putative inter-lineage hybrids in the population structure analysis, each containing numerous lineage-specific private alleles from both lineages. (frontiersin.org)
  • Inter- And Intraspecific Variation In The Diets Of Sympatric Siamang ( Hylobates Syndactylus ) And Lar Gibbons ( Hylobates Lar . (figweb.org)
  • In an artificial evolution experiment, we used a novel intraspecific metabarcoding locus to track selection and quantify fitness of all 58 strains during co-cultivation in one control and one toxic copper treatment. (lu.se)
  • In several cases, we also quantify considerable geographic variation and decreases in size likely attributed to humans. (altmetric.com)
  • Reproductive strategy affects population dynamics and genetic parameters that can, in turn, affect evolutionary processes during the course of biological invasion. (plos.org)
  • We found that invasive populations have a different profile of male and female reproductive output. (plos.org)
  • My main current researchinterests include evolution in spatially structured populations, evolution of ageing, and evolution of reproductive modes. (cnrs.fr)
  • The purging of deleterious alleles and admixture between populations are crucial determinants of the fate of some invasions [18] , [19] . (plos.org)
  • However, we still know little about the relative strength of these drivers in determining ITV variation in natural populations. (fu-berlin.de)
  • 2013. Local adaptation of sex-induction in a facultative sexual crustacean: insights from QTL mapping and natural population of Daphnia magna . (cnrs.fr)
  • For example in complex animal systems, color polymorphisms tend to have unknown inheritance mechanisms, exhibit continuous or intermediate variation, result from assortative mating under natural conditions, and/or be sex-linked [ 3 ] as seen in the African cichlid fishes [ 7 ]. (biomedcentral.com)
  • However, our understanding of the spatial scales at which genetic diversity is partitioned in natural populations is limited. (thekamellab.com)
  • intraspecific variation in resting metabolic rate and what are its ecological consequences? (biologists.com)
  • We also develop an eco-epidemiological model for malaria transmission in the Atlantic Forest that incorporates feedbacks from ecological factors into biting rate and mosquito population size. (fapesp.br)
  • A Cross Sectional Sampling Reveals Novel Coronaviruses in Bat Populations of Georgia. (cdc.gov)
  • Compared to most well-studied rattlesnakes, which are widely distributed, the isolated montane populations of Cerrophidion may facilitate unique evolutionary trajectories and venom differentiation. (bvsalud.org)
  • Although intraspecific comparisons revealed significant geographic variation in allele frequencies, there were no fixed allelic differences between populations. (stroudcenter.org)
  • Our findings provide novel empirical evidence that standing genetic diversity of phytoplankton resting stage allows populations to evolve rapidly (20-50 generations) and flexibly on timescales relevant for seasonal bloom progressions. (lu.se)
  • Importantly, determining what aspects of intraspecific diversity most closely predict population success offers practical guidance to management and restoration efforts, in the face of contemporary anthropogenic change to marine coastal habitats. (thekamellab.com)
  • A generally north to south spreading direction was found in these B. hybridum populations, towards a drier and warmer climate exhibiting higher moisture deficit for plant growth. (osti.gov)
  • We found that high M. melolontha infestation levels over the last decades are associated with high concentrations of major root latex secondary metabolites across 21 central European T. officinale field populations. (datadryad.org)
  • We found substantial population differentiation and recent trans-Atlantic dispersal of a high-virulence B. burgdorferi clone. (cdc.gov)
  • 1999. Countergradient variation and the evolution of growth rate in fishes: trade-offs in growth, consumption, and swimming performance. (ccri.edu)
  • We are recruiting a graduate student to model host/symbiont population dynamics and evolution in our spider system. (uky.edu)
  • We explore gene expression variation in Cerrophidion and sequence evolution of toxins within C. godmani specifically. (bvsalud.org)
  • The toxins of C. godmani show little evidence of directional selection where variation in toxin sequence is consistent with evolution under a model of mutation-drift equilibrium. (bvsalud.org)
  • Plants display extensive intraspecific variation in secondary metabolites. (datadryad.org)
  • Color polymorphisms, or the occurrence of two or more genetically determined color morphs within an interbreeding population [ 1 ], occur in animals and plants alike. (biomedcentral.com)
  • Because the local populations are assumed to be selected for under different environments, the different reaction norm might have evolved in response to different selection pressures. (bioone.org)
  • The consistent divergence across wild populations and the common garden experiment suggests that color is genetically correlated to ecology. (biomedcentral.com)
  • 2015 High genetic variation in resting-stage production in a metapopulation: Is there evidence for local adaptation? (cnrs.fr)
  • Variation in the content of phenolic compounds was largely related to genetic background and less to environment, while the reverse was true for their protein-precipitating capacity. (ufz.de)
  • Haplotype distributions from European and North American samples representing the range of P. umbilicalis are consistent with the hypothesis that North American populations were extirpated during the last glacial maximum and subsequently recolonized from European donor populations. (degruyter.com)
  • We observed greater variation in lower thermal limits, with CT min ranging from 1.81 to 8.60°C, while CT max ranged from 38.74 to 40.64°C. We identified 151 and 99 distinct genes associated with CT min and CT max , respectively, and there was strong support that these genes are involved in both dynamic responses to thermal stress and preparatory processes that increase thermal resistance. (frontiersin.org)
  • Individual (co) variation in thermal reaction norms of standard. (biologists.com)
  • A central theme of our research is that the social environment - that is, the density and genetic composition of groups of interacting conspecifics - can significantly influence the life histories, productivity, and functioning of individuals and populations. (thekamellab.com)
  • In a series of mating trials, we examined mixed groups of four males from invasive and native populations of the harlequin ladybird Harmonia axyridis mating freely during 48 hours with one female of either type. (plos.org)
  • Males from invasive populations are more likely to mate first and gain a higher proportion of offspring with both invasive and native females. (plos.org)
  • Females from invasive populations reproduce sooner, lay more eggs, and have offspring sired by a larger number of fathers than females from native populations. (plos.org)
  • Evolutionary processes and genetic attributes of invasive populations may underpin their success in becoming established in a new range [1] - [3] . (plos.org)
  • Study of genetic variations of Populus euphratica Oliv. (rifr-ac.ir)
  • Mammal-associated coronaviruses have a long evolutionary history across global bat populations, which makes them prone to be the most likely ancestral origins of coronavirus-associated epidemics and pandemics globally. (cdc.gov)