CONVENTION ON MIGRATORY SPECIES

Introduction 1.1 Aims and Objectives In February 2020, at the 13th meeting of the Conference of the Parties to CMS (COP13, Gandhinagar, India), the subject of Insect Decline and its Threat to Migratory Insectivorous Animal Populations, prepared by the European Union, was introduced as UNEP/CMS/COP13/Doc.26.4.10. [...] The Parties adopted the Resolution 13.6 Insect Decline and its Threat to Migratory Insectivorous Animal Populations, calling for the analysis and action concerning the dramatic insect decline and related cascading effects on migratory insectivorous species. [...] Objectives of the report follow the mandate from the Decision 13.129, directed of the Scientific Council and adopted by the 13th meeting of the Conference of the Parties (COP13): a) identifying and prioritizing the main factors causing the established loss of insect biomass; b) collecting relevant information regarding the current insect decline, and assessing its cascading effects on migratory in. [...] Current knowledge of bird migration behaviour includes the subjects of migratory connectivity, carry-over effects and phenological mismatch: 16 Insect Decline and Its Threat to Migratory Insectivorous Animal Populations Population dynamics of migratory birds can be vary depending on the migratory connectivity of the bird species (Webster et al. [...] The amplitude of the mismatch for a migratory bird species can depend on the geographical region, the bird migration system, the migration distance and the species composition of the migrants (Jones & Cresswell 2010).