Members of Enterobacteriaceae are known to produce extended-spectrum beta-lactamases (ESBL) which hydrolyze the beta-lactam group of antibiotics. The existence of ESBL-producing Salmonella enterica (S. enterica) and Escherichia coli (E. coli) harbored by urban avifauna was investigated in this study. Dropping samples (n= 180) were collected from six different bird species in the district Jhang, Punjab province, Pakistan. Isolation and identification of ESBL isolates were made by using cefotaxime- (4 mg/L) supplemented MacConkey agar and double disc synergy test (DDST). Polymerase chain reaction (PCR) was performed for the detection of four different ESBL genes including blaCTX-M, blaTEM, blaSHV and blaOXA. A total of 42.69% isolates were confirmed as ESBL via DDST including 30.64% S. enterica and 49.54% E. coli. The incidence of ESBL S. enterica and ESBL E. coli was found highest in egret (Ardea alba) and pigeon (Columba livia) as 64.28% and 78.95%, respectively. The blaCTX-M gene was detected in 57.89% and 64.81% of isolates of S. enterica and E. coli, respectively. Among other genes in S. enterica and E. coli, blaTEM (21.05%, 20.4%); blaSHV (15.78%, 9.26%), and blaOXA (5.26%, 5.56%) were detected, respectively. All of the tested isolates were found resistant to at least one of the thirteen antimicrobial agents except meropenem. To the best of our knowledge, this is the first study reporting the incidence and genetic diversity of ESBL bacteria associated with urban avifauna in Pakistan. The urban avifauna can serve as a potential subject of bio-surveillance to monitor the emergence of antimicrobial-resistant bacteria.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.24425/pjvs.2023.145006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Historic checklist, core species and temporal composition turnover of birds in an urban protected natural area in central México over 50 years.
PeerJ
August 2024
Secretaría Ejecutiva de la Reserva Ecológica del Pedregal de San Ángel, Ciudad Universitaria, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, Mexico.
The Pedregal de San Ángel Ecological Reserve (REPSA) is located within the central campus of the National Autonomous University of Mexico (UNAM), in southwestern Mexico City. This area is known for its bird richness, which has been documented over time. However, this historical information has not been compiled, nor has it been assessed whether species composition has changed over time.
View Article and Find Full Text PDFUnravelling the complexities of biotic homogenization and heterogenization in the British avifauna.
J Anim Ecol
September 2024
GEES (School of Geography, Earth and Environmental Sciences) and Birmingham Institute of Forest Research, University of Birmingham, Birmingham, UK.
Biotic homogenization is a process whereby species assemblages become more similar through time. The standard way of identifying the process of biotic homogenization is to look for decreases in spatial beta-diversity. However, using a single assemblage-level metric to assess homogenization can mask important changes in the occupancy patterns of individual species.
View Article and Find Full Text PDFArticle Synopsis
- Increased species extinction and habitat loss have led to a significant reduction in biodiversity, threatening both nature and humanity, with a focus on how environmental factors affect bird distribution.
- The study utilized the MaxEnt model to analyze bird species richness in Jiangsu Province, using detailed data to identify patterns related to water bodies, migratory status, and feeding habits across different regions.
- Findings indicate that while many species richness hotspots are well-protected within existing natural areas, there are regions like parts of Sheyang County and along the Yangtze River that currently lack sufficient protection, highlighting areas for conservation policy improvement.
Diversity and Population Sizes of Wintering Waterbirds in the Wetlands of the Saïss-Middle Atlas Region (North-Central Morocco): Main Survival Factors and Evaluation of Habitat Loss.
Animals (Basel)
April 2024
GREPOM/BirdLife Morocco, Résidence Oum Hani IV, Imm 22, Apt 3, Salé 11160, Morocco.
Moroccan wetlands host up to half a million wintering birds and provide a stopover for tens of thousands of migrants, while they are inhabited by few nesting species. Most of this avifauna prefers to use the large coastal wetlands or reservoirs, while many species are dispersed across hundreds of small inland wetlands of various types. In this study, we monitored the wintering avifauna of 11 wetlands of the Saïss plain and its adjacent Atlas Mountains (north-center of Morocco), during six wintering seasons (2017-2018 to 2022-2023), with the objective of assessing the importance of this region as a waterbird wintering area.
View Article and Find Full Text PDFDiversity and Distribution of Avifauna in the Northeast of Addis Ababa, Central Ethiopia.
ScientificWorldJournal
April 2024
Simien Mountains Landscape Conservation and Management Project, African Wildlife Foundation, Debark, Ethiopia.
Exploring avian species diversity and distribution patterns is vigorous for conservation efforts in biodiversity-rich countries such as Ethiopia. Compared to other species, birds are relatively well-known and easily observed, making them great markers of productivity or biodiversity. Although bird species are found all across the world, their survival and range have been negatively impacted by habitat loss, fragmentation, and destruction.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!