Plastic ingestion, accumulated heavy metals, and health metrics of four Larus gull species feeding at a coastal landfill in eastern Canada

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 476, P. 135107 - 135107

Published: July 14, 2024

The objectives of this research were to assess ingested plastics and accumulated heavy metals in four urban gull species. Additionally, the relationships between selected demographic health metrics assessed. Between 2020–2021 during non-breeding seasons, 105 gulls (46 American herring (HERG, Larus argentatus smithsonianus), 39 great black-backed (GBBG, marinus), 16 Iceland (Larus glaucoides), 4 glaucous hyperboreus)) killed at a landfill coastal Newfoundland Labrador, Canada, as part separate, permitted kill-to-scare operations related aircraft safety. Birds necropsied, upper gastrointestinal tract contents processed using standard techniques, livers analyzed for As, Cd, Hg, Pb. plastics, demographics, assessed HERG GBBG. Across all species, 85 % birds had least one piece anthropogenic debris, with 79 ingesting plastic. We detected interspecific differences plastic ingestion hepatic trace metals, increased GBBG compared HERG. For GBBG, levels relatively greater higher scaled mass index, while more liver lead concentrations.

Language: Английский

Understanding Wildlife Biodiversity Awareness: Rural Children’s Knowledge, Attitudes and Perceptions of Conservation in the Selva Maya

Diversity, Journal Year: 2025, Volume and Issue: 17(3), P. 152 - 152

Published: Feb. 24, 2025

We live in an era where future generations are experiencing a serious loss of knowledge, sensitivity, and interest biodiversity. This situation is thought to be unique urbanised countries with limited green spaces. However, the increasing urbanisation rural areas, it necessary investigate what happening places high In this study, we investigated attitudes perceptions children adolescents municipality José María Morelos southeastern Mexico. analysed 1119 drawings by 117 their first three years school interviewed 280 students last primary, secondary school. Younger drew more native species, majority being mammals. Of surveyed, had highest level species knowledge considered deer jaguar most important species. They hunting main cause animal depletion positive attitude towards nature conservation. Based on our findings, recommend that educational strategies implemented at all levels promote less emblematic inhabit Selva Maya.

Language: Английский

Historical (1960 – 2011) and spatial analysis of mercury and arsenic in two species of tropical birds in southeastern Mexico

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 485, P. 136917 - 136917

Published: Dec. 18, 2024

Language: Английский