Iskanje po repozitoriju

A+ | A- | | SLO | ENG

Povzetek: Insect pollination is one of the most important ecosystem services. Pollinator communities are rarely studied across years and crops in the same location. The aim of this study was to investigate the pollinator community structure on five different fruit crops, as well as the activity of different pollinator groups during the day and their temperature preferences. Pollinator activity was observed across two years on apple trees and blueberry, strawberry, blackcurrant and raspberry bushes. Pollinator community structure varied by plant and year. Honeybees were the most numerous pollinators on all plants except blueberry bushes (39-95% of visits). Bumblebee numbers were high on blackcurrant (up to 28%) and blueberry bushes (up to 61%). Solitary bees visited all plants except blueberries. Honeybees, solitary bees, and hoverflies were most active in the middle of the day, while bumblebees became active earlier in the morning and remained active later in the evening. Pollinators also differed greatly in their temperature preferences. This knowledge gained is necessary for less harmful pesticide application management and the development of more sustainable agriculture to maintain pollinator diversity and thus reliable pollination in extreme weather conditions.
Ključne besede: fruit pollination, agroecology, biodiversity, wild bees, conservation
Objavljeno v DiRROS: 04.03.2025; Ogledov: 289; Prenosov: 86
Celotno besedilo (1,81 MB)
Gradivo ima več datotek! Več...

Povzetek: Background Research into the genetic diversity of honey bee (Apis mellifera L.) populations has become increasingly signifcant in recent decades, primarily due to population declines attributed to human activities and climate change. As a species of great importance, breeding programs that leverage understanding of genomic diversity could ofer solutions to mitigate these challenges. The objective of this study was to examine the genomic diversity and population structure of Carniolan honey bees (Apis mellifera carnica) using the Illumina SNP chip on a large honey bee sample collected from Central and South-Eastern European countries. The study also aims to ofer recommendations for future breeding programs
Ključne besede: honey bee, Carniolian honey bee, genomic diversity, diversity, population structure
Objavljeno v DiRROS: 02.12.2024; Ogledov: 290; Prenosov: 345
Celotno besedilo (11,37 MB)

Povzetek: The complete mitochondrial genome of the Carniolan honeybee (Apis mellifera carnica) from Slovenia, a homeland of this subspecies, was acquired in two contigs from WGS data and annotated. The newly obtained mitochondrial genome is a circular closed loop of 16,447 bp. It comprises 37 genes (13 protein coding genes, 22 tRNA genes, and 2 rRNA genes) and an AT-rich control region. The order of the tRNA genes resembles the order characteristic of A. mellifera. The mitogenomic sequence of A. m. carnica from Slovenia contains 44 uniquely coded sites in comparison to the closely related subspecies A. m. ligustica and to A. m. carnica from Austria. Furthermore, 24 differences were recognised in comparison between A. m. carnica and A. m. ligustica subspecies. Among them, there are three SNPs that affect translation in the nd2, nd4, and cox2 genes, respectively. The phylogenetic placement of A. m. carnica from Slovenia within C lineage deviates from the expected position and changes the perspective on relationship between C and O lineages. The results of this study represent a valuable addition to the information available in the phylogenomic studies of A. mellifera—a pollinator species of worldwide importance. Such genomic information is essential for this local subspecies’ conservation and preservation as well as its breeding and selection.
Ključne besede: western honeybee, Apis mellifera carnica, mitochondrial genome, phylogeny, C lineage, annotation, whole genome sequencing, protection, conservation
Objavljeno v DiRROS: 06.09.2022; Ogledov: 1449; Prenosov: 375
Celotno besedilo (1,06 MB)

Ključne besede: honeybees, lithium, lithium contamination, varroa, varroa control, food chain coupling
Objavljeno v DiRROS: 16.06.2020; Ogledov: 2835; Prenosov: 1345
Datoteka (515,51 KB)

Ključne besede: honey bee, bee colonies, queen body mass, parameter importance, machine learning, queen bee quality
Objavljeno v DiRROS: 29.04.2020; Ogledov: 3125; Prenosov: 1073
Celotno besedilo (14,78 MB)