Christophe Jacob results 26
· Newest (Page 1/2, per page 25)
Author: Christophe Jacob ×Clear All Filters
Search Results
This study examines the residential mobility patterns and funerary practices of an Urnfield cemetery at Přáslavice, Czech Republic, using radiocarbon dating, carbon, oxygen, and strontium isotope analyses, and FTIR analysis. A regional bioavailable strontium baseline map was created using strontium isotope ratios ( 87 Sr/ 86 Sr) of modern plant samples (n=208) from 70 localities across Moravia and Czech Silesia. Radiocarbon da...
Genomic Signatures of Microgeographic Adaptation in Anopheles coluzzii Across Urban, Rural, and Forested Environments in GabonNARA Subscribed
Species distributed across heterogeneous environments often evolve locally adapted populations, but understanding how these persist in the presence of homogenizing gene flow remains puzzling. In Gabon, Anopheles coluzzii, a major African malaria mosquito, is found in various ecological settings, including urban areas, remote rural villages, and forested environments away from any human presence. This study investigates the gen...
Global Marine Flyways Identified for Long‐Distance Migrating Seabirds From Tracking DataNARA Subscribed
Aim To identify the broad‐scale oceanic migration routes (‘marine flyways’) used by multiple pelagic, long‐distance migratory seabirds based on a global compilation of tracking data. Location Global. Time Period 1989–2023. Major Taxa Studied Seabirds (Families: Phaethontidae, Hydrobatidae, Diomedeidae, Procellariidae, Laridae and Stercorariidae). Methods We collated a comprehensive global tracking dataset that included the mig...
Sesquiterpenes of the ectomycorrhizal fungus Pisolithus microcarpus alter root growth and promote host colonizationNARA Subscribed
Trees form symbioses with ectomycorrhizal (ECM) fungi, maintained in part through mutual benefit to both organisms. Our understanding of the signaling events leading to the successful interaction between the two partners requires further study. This is especially true for understanding the role of volatile signals produced by ECM fungi. Terpenoids are a predominant class of volatiles produced by ECM fungi. While several ECM ge...
Consensus Paper: Cerebellum and AgeingNARA Subscribed
Funding evidence‐based conservationNARA Subscribed
Low neutral and immunogenetic diversity in northern fringe populations of the green toad Bufotes viridis: implications for conservationNARA Subscribed
Genetic variation is often lower at high latitudes, which may compromise the adaptability and hence survival of organisms. Here we show that genetic variability is negatively correlated with northern latitude in European green toads ( Bufotes viridis ). The result holds true for both putatively neutral microsatellite variation and supposedly adaptive MHC Class IIB variation. In particular, our findings have bearing on the cons...
In this paper, we outline the need for a coordinated international effort toward the building of an open-access Global Ocean Oxygen Database and ATlas (GO 2 DAT) complying with the FAIR principles (Findable, Accessible, Interoperable, and Reusable). GO 2 DAT will combine data from the coastal and open ocean, as measured by the chemical Winkler titration method or by sensors (e.g., optodes, electrodes) from Eulerian and Lagrang...
Congruent patterns of functional diversity in saproxylic beetles and fungi across European beech forestsNARA Subscribed
Aim Beech forests comprise a globally unique temperate forest type in Europe. The dominance of beech in these forests developed during the ongoing post‐glacial northward re‐colonization, concurrently with intensified forest use by humans. We investigated how these two processes together with climate shaped the patterns of functional diversity of two major species groups involved in wood decomposition and whether functional div...
In group living species, individuals may gain the indirect fitness benefits characterizing kin selection when groups contain close relatives. However, tests of kin selection have primarily focused on cooperatively breeding and eusocial species, whereas its importance in other forms of group living remains to be fully understood. Lekking is a form of grouping where males display on small aggregated territories, which females th...
Climate change and Southern Ocean ecosystems I: how changes in physical habitats directly affect marine biotaNARA Subscribed
Antarctic and Southern Ocean ( ASO ) marine ecosystems have been changing for at least the last 30 years, including in response to increasing ocean temperatures and changes in the extent and seasonality of sea ice; the magnitude and direction of these changes differ between regions around Antarctica that could see populations of the same species changing differently in different regions. This article reviews current and expect...