Petr Daniel results 91
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Using pikeperch ( Sander lucioperca ) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength. Our analysis was based on 13 years of data (2003–2024) collected in the Lipno Reservoir, Czechia. Using LASSO...
The return of natural fish communities in Bohemian Forest watercourses after acidification recoveryNARA Subscribed
Following decades of atmospheric acidification, the Bohemian Forest watercourses are now witnessing a remarkable resurgence of natural fish communities. This study presents the most comprehensive ichthyological survey of the region to date, covering 168 watercourse sites across the Czech and Bavarian parts of the Bohemian Forest. Using standardized electrofishing methods, we assessed species composition, density, and the prese...
The potential role of volatile organic compounds on the colonisation of deadwood by saproxylic beetlesNARA Subscribed
Volatile organic compounds (VOCs) emitted by deadwood are increasingly recognised as key olfactory cues used by saproxylic beetles to locate suitable substrates, yet their role during colonisation remains poorly understood. To address this, we quantified VOC emissions and beetle assemblages while experimentally disentangling the main ecological drivers of the deadwood volatilome (tree species, sun exposure). We exposed 1200 fr...
Development of Cellular Energy Metabolism During Differentiation of Human iPSCs into Cortical NeuronsNARA Subscribed
Neuronal differentiation requires extensive metabolic remodeling to support increased energetic and biosynthetic demands. Here, we present an integrated multi-omics and functional characterization of metabolic transitions during early differentiation of human induced pluripotent stem cells (iPSCs) into excitatory cortical neurons using doxycycline-inducible overexpression of neurogenin-2 (NGN2). We analyzed parental iPSCs and...
Long‐term shifts in pikeperch, Sander lucioperca , diet composition in a changing reservoirNARA Subscribed
As a significant piscivorous predator, the pikeperch ( Sander lucioperca ) plays a critical role in regulating aquatic ecosystems. Understanding its size‐related feeding behaviour is thus vital for assessing its impact. To evaluate its role in the ecosystem, stomach content analysis provides useful insights into predator–prey dynamics. This study investigated the stomach content and dietary patterns of pikeperch in the Lipno R...
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
This study investigates the dynamics of sediment and phosphorus transport in small streams affected by recurrent flood waves. The experiments were carried out in two streams with contrasting conditions: one in an agricultural headwater section, which serves as a sediment source, and the other in a mid-water section influenced by fish ponds. High-frequency data on suspended sediment and phosphorus concentrations were collected...
River Drying Causes Local Losses and Regional Gains in Aquatic Invertebrate Metacommunity Diversity: A Cross‐Continental ComparisonNARA Subscribed
Drying river networks include non‐perennial reaches that cease to flow or dry, and drying is becoming more prevalent with ongoing climate change. Biodiversity responses to drying have been explored mostly at local scales in a few regions, such as Europe and North America, limiting our ability to predict future global scenarios of freshwater biodiversity. Locally, drying acts as a strong environmental filter that selects for sp...
Population genetic structure of the European pond turtle (Emys orbicularis) at the northern edge of the Pannonian BasinNARA Subscribed
Populations of plants and animals at the edge of a species’ range may exhibit lower genetic diversity due to a combination of historical (e.g., postglacial dispersal) and contemporary (e.g., low effective population size, strong genetic drift or bottlenecks) processes. In this study, we analysed the genetic structure of populations of the European pond turtle ( Emys orbicularis ) in the northern part of the Pannonian Basin (Sl...
Dominance and rarity in tree communities across the globe: Patterns, predictors and threatsNARA Subscribed
Aim Ecological and anthropogenic factors shift the abundances of dominant and rare tree species within local forest communities, thus affecting species composition and ecosystem functioning. To inform forest and conservation management it is important to understand the drivers of dominance and rarity in local tree communities. We answer the following research questions: (1) What are the patterns of dominance and rarity in tree...