Results 61 to 70 of about 13,136,359 (338)

Assessing the Effect of Climate Change in Vascular Plants with Disjunct Populations

open access: yesBiology and Life Sciences Forum, 2022
Many species exhibit intraspecific ecological variation, and to not consider this ecological differentiation can confound predictions made with species distribution models (SDMs).
Lucia Varaldo   +4 more
doaj   +1 more source

Effect of anthropogenic disturbances on leaf traits of woody species from a subtropical dry forest of Argentina

open access: yesForest Systems
Aim of study: To assess the effects of forest disturbances on two foliar attributes, leaf area (LA) and specific leaf area (SLA), of woody species in a semi-arid Chaco forest of Argentina.
Florencia I. del Corro   +2 more
doaj   +1 more source

Stem Cell Differentiation Disperses Transcriptional Clusters via a Conserved Surface‐Condensate Trajectory

open access: yesAdvanced Science, EarlyView.
Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg   +18 more
wiley   +1 more source

A river runs through it: The causes, consequences, and management of intraspecific diversity in river networks

open access: yesEvolutionary Applications, 2020
Rivers are fascinating ecosystems in which the eco‐evolutionary dynamics of organisms are constrained by particular features, and biologists have developed a wealth of knowledge about freshwater biodiversity patterns.
Simon Blanchet   +9 more
doaj   +1 more source

INTRASPECIFIC VARIATION IN SEX ALLOCATION IN A SIMULTANEOUS HERMAPHRODITE: THE EFFECT OF INDIVIDUAL SIZE [PDF]

open access: yesEvolution, 1996
Within a population of simultaneous hermaphrodites, individuals may vary in both their current reproductive investment (biomass invested in gonads) and in how they allocate that investment between male and female function. In the chalk bass, Serranus tortugarum, estimates of both reproductive allocation and reproductive success as a male and a female ...
Christopher W, Petersen, Eric A, Fischer
openaire   +2 more sources

A Single‐Cell Transcriptomic Atlas of the Ovine Rumen Microbiome Characterizes Lineage‐Specific Metabolic Shifts Associated with Host Heat Tolerance

open access: yesAdvanced Science, EarlyView.
An optimized single‐cell transcriptomic framework profiles over 60 000 cells to map the ovine rumen microbiome, partitioning the ecosystem into seven cross‐species functional clusters. In heat‐resistant hosts, a lineage‐specific metabolic shift in Anaerovibrio lipolyticus toward a highly glycolytic phenotype contributes to a “nutritional sparing ...
Sanbao Zhang   +8 more
wiley   +1 more source

Contrasting effects of plant inter‐ and intraspecific variation on community trait responses to restoration of a sandy grassland ecosystem

open access: yesEcology and Evolution, 2017
Changes in plant community traits along an environmental gradient are caused by interspecific and intraspecific trait variation. However, little is known about the role of interspecific and intraspecific trait variation in plant community responses to ...
X. Zuo   +7 more
semanticscholar   +1 more source

Experimental evidence for an intraspecific Janzen‐Connell effect mediated by soil biota [PDF]

open access: yesEcology, 2015
The negative effect of soil pathogens on seedling survival varies considerably among conspecific individuals, but the underlying mechanisms are largely unknown. For variation between heterospecifics, a common explanation is the Janzen‐Connell effect: negative density dependence in survival due to specialized pathogens aggregating on common hosts.
Liu, Xubing   +4 more
openaire   +3 more sources

A Pan‐Methylome Framework for Population‐Scale Bacterial Epigenomics

open access: yesAdvanced Science, EarlyView.
A scalable quantitative framework unlocks population‐level comparative epigenomics in bacteria. By transforming site‐level data into standardized traits, this approach reconstructs methylation‐informed phylogenies and defines the core epigenome.
Bin Ma   +22 more
wiley   +1 more source

Intraspecific variation in behaviour: effects of evolutionary history, ontogenetic experience and sex [PDF]

open access: yesJournal of Evolutionary Biology, 2011
AbstractGeographical variation in behaviour within species is common. However, how behavioural plasticity varies between and within locally adapted populations is less studied. Here, we studied behavioural plasticity induced by perceived predation risk and food availability in pond (low predation – high competition)vs.coastal marine (high predation ...
Herczeg Gabor, Välimäki Kaisa Susanna
openaire   +2 more sources

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