A5027664956- Insect and Pesticide Research
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Bee Products Chemical Analysis
- Plant Virus Research Studies
- Insect Pest Control Strategies
- Plant Parasitism and Resistance
- Animal and Plant Science Education
- Insect-Plant Interactions and Control
University of Boumerdes
2013-2023
École Normale Supérieure de Kouba
2017
American University of Madaba
2015
This article presents managed honey bee colony loss rates over winter 2019/20 resulting from using the standardised COLOSS questionnaire in 37 countries. Six countries were outside Europe, including, for first time this series of articles, New Zealand. The 30,491 beekeepers Zealand reported 4.5% colonies with unsolvable queen problems, 11.1% dead after and 2.6% lost through natural disaster. gave an overall rate 18.1%, higher than previous year. varied greatly between countries, 7.4% to...
In this short note we present comparable loss rates of honey bee colonies during winter 2016/2017 from 27 European countries plus Algeria, Israel and Mexico, obtained with the COLOSS questionnaire. The 14,813 beekeepers providing valid data collectively wintered 425,762 colonies, reported 21,887 (5.1%, 95% confidence interval 5.0–5.3%) unsolvable queen problems 60,227 (14.1%, CI 13.8–14.4%) dead after winter. Additionally asked for lost due to natural disaster, which made up another 6,903...
This article presents managed honey bee colony loss rates over winter 2018/19 resulting from using the standardised COLOSS questionnaire in 35 countries (31 Europe). In total, 28,629 beekeepers supplying valid data wintered 738,233 colonies, and reported 29,912 (4.1%, 95% confidence interval (CI) 4.0–4.1%) colonies with unsolvable queen problems, 79,146 (10.7%, CI 10.5–10.9%) dead after 13,895 (1.9%, 1.8–2.0%) lost through natural disaster. gave an overall rate of 16.7% (95% 16.4–16.9%),...
In this short note we present comparable loss rates of honey bee colonies during winter 2015/16 from 29 countries, obtained with the COLOSS questionnaire. Altogether, received valid answers 19,952 beekeepers. These beekeepers collectively wintered 421,238 colonies, and reported 18,587 unsolvable queen problems 32,048 dead after winter. This gives an overall rate 12.0% (95% confidence interval 11.8–12.2%) 2015/16, marked differences among countries. Beekeepers in study assessed 7.6% CI...
SummaryThis chapter addresses survey methodology and questionnaire design for the collection of data pertaining to estimation honey bee colony loss rates identification risk factors loss. Sources error in surveys are described. Advantages disadvantages different random non-random sampling strategies modes presented enable researcher make an informed choice. We discuss some detail, purpose raising awareness issues be considered during stage order minimise bias results. Aspects illustrated...
The honey bee plays a very important role in plant biodiversity and the natural environmental balance. It is considered biological marker that alerts to state of environment. In Algeria, Varroa major problem beekeeping, as it serious condition due development handling ectoparasitic mite. Within framework MEDIBEES project - Monitoring Mediterranean subspecies their resilience climate change for sustainable improvement agroecosystems survey was conducted 2021, with objective characterizing...
Novel transmission routes can allow infectious diseases to spread, often with devastating consequences. Ectoparasitic varroa mites vector a diversity of RNA viruses, having switched hosts from the eastern western honey bees (Apis cerana Apis mellifera). They provide an opportunity explore how novel shape disease epidemiology. As principal driver spread deformed wing viruses (mainly DWV-A and DWV-B), infestation has also driven global bee health declines. The more virulent DWV-B strain been...
Assessment of colony infestation by Varroa destructor is a crucial part the Integrated Pest Management (IPM) applied to beekeeping. Natural mite fall, quantified counting mites on sticky sheets, considered reference method estimate varroa level in honey bee colonies. However, recent years, alternative methods that can be used field conditions have been investigated. In this paper, we report results evaluation two different levels infestation. The experiment involved 151 colonies nine...
In this study, the complete mitochondrial genome sequence of Algerian honeybee, Apis mellifera intermissa, is analyzed for first time. The results show that 16,336 bp in length, and contains 13 protein-coding genes, 22 transfer RNA 2 ribosomal 1 control region (D-loop). overall base composition A (43.2%), C (9.8%), G (5.6%), T (41.4%), so percentage (84.6%) considerably higher than C. All genes are encoded on H-strand, except four subunit (ND1, ND4, ND4L, ND5), two rRNA (12S 16S rRNA), eight...
Three hundred and eleven honeybee samples from 12 countries in the Middle East North Africa (MENA) (Jordan, Lebanon, Syria, Iraq, Egypt, Libya, Tunisia, Algeria, Morocco, Yemen, Palestine, Sudan) were analyzed for presence of deformed wing virus (DWV). The prevalence DWV throughout MENA region was pervasive, but variable. highest found Lebanon with dropping Jordan, Egypt before increasing slightly moving westwards to Algeria Morocco Phylogenetic analysis a 194 nucleotide section Lp gene did...
Honeybees, in addition to their production of honey, pollinate the flowers fruit trees and other crops. Any threat them, whether from pesticides, herbicides or diseases, therefore pose serious consequences not only for beekeeping, but also agriculture general. For several years, many beekeepers Algeria have reported deaths apiaries. At present, we lack hard data on causes such mortality. In order provide some answers this problem, conducted a field study with mid-northern Algeria. This is...
Abstract Apis mellifera intermissa is the native honey bee subspecies of Algeria, and approximates a position among races between tropical African European breeds. This very aggressive, nervous, produces many broods with queen cells. It prone to swarming exhibits defensive behavior an abundant use propolis. In present study, pure line samples A. m. collected from Blida (Algeria; 36°31′N, 2°58′E) preferable Varroa resistance confirmed their through hygienic cleaning high temperature...
Apis mellifera intermissa is the native honeybee subspecies of Algeria. A. m. occurs in Tunisia, Algeria and Morocco, between Atlas Mediterranean Atlantic coasts. This bee very important due to its high ability adapt great variations climatic conditions preferable cleaning behavior. Here we report draft genome sequence this honey bee, Whole Genome Shotgun project has been deposited at DDBJ/EMBL/GenBank under accession JSUV00000000. The 240-Mb being annotated analyzed. Comparison with other...
In this study, we investigated the effect of queen caging on honey bee colonies' post-treatment development and optimal timing method application production during main summer nectar flow. We conducted study in nine apiaries (N = 9) across six Mediterranean countries, with a total 178 colonies. The colonies were divided into three test groups: QC1, QC2, C. QC1 group involved queens caged for 28 days before expected harvesting day. QC2 group, days, but only 14 C consisted that not caged,...
Varroa mite has become a major concern of beekeepers in
 Algeria since the discovery first cases infestation in year 1982.
 Amitraz is predominant
 compound used to control V. destructor, its constant application caused appearance of
 resistant populations this product several parts world. This study was conducted detect possible
 existence mites Algeria. To
 determine mortality percentage Amitraz, they were exposed trips 2.5 x 1.0 cm. apiaries treated with...
American Foulbrood Disease (AFB) is considered one of the most virulent bacterial diseases honeybee (Apis mellifera); it has a vital negative impact on beekeeping industry worldwide.This work includes subsequent diagnosis including; chemical, microbiological procedure for detection Paenibacillus larvae.During spring and summer 2009, fifty-six honey larval samples were collected from 56 inspected honeybees colonies located in 53 apiaries representing all over Jordan.The examined to assess...
During the main COVID-19 global pandemic lockdown period of 2020 an impromptu set pollination ecologists came together via social media and personal contacts to carry out standardised surveys flower visits plants in gardens. The involved 67 rural, suburban urban gardens, various sizes, ranging from 61.18° North Norway 37.96° South Australia, resulting a data 25,174 rows, with each row being unique interaction record for that date/site/plant species, comprising almost 47,000 flowers, as well...
Abstract Novel transmission routes can allow infectious diseases to spread, often with devastating consequences. Ectoparasitic varroa mites vector a diversity of RNA viruses and, having switched hosts from the eastern western honey bees ( Apis cerana mellifera ). They provide an opportunity explore how novel shape disease epidemiology. As principal driver spread Deformed Wing Viruses (mainly DWV-A and DWV-B), infestation has also driven global bee health declines. The more virulent DWV-B...
The varroa mite (Varroa destructor), a complex ectoparasite with very distinctive biology (Rosenkranz et al., 2010) is considered key pest affecting beekeeping and honey bee health worldwide (T...