Schematizing a historical demographic collapse on a large time span using local, secondary and grey data: The case of Italian roe deer Capreolus capreolus italicus in Central Italy

摘要: Abstract In this work we attempt to reconstruct the dynamic collapse over time of a regional population Italian roe deer in central Italy (Latium and Abruzzi) from 15th Century present day. To meet aim, both historical grey literature (both primary secondary) has been investigated, DPSIR model standardized threat taxonomy have applied. Historically, different driving forces pressures changed status conservation responses were promoted. Biological resource use (5.1—“Hunting collecting terrestrial animals” 5.3—“Logging wood harvesting”), Natural system modification (7.1—“Fire” 7.3—“Other ecosystem modifications, as land reclamation) Invasive other problematic species (8.3 “Introduced genetic material genes”) main threats (IUCN taxonomy). We recognized three phases one sub-phase demographic reduction collapse: “Aristocratic hunting” phase (15th Century), “Fire weapons people (from 16th 18th “Habitat collapse” (19th 20th with “genetic introgression” beginning 1940s. Our analysis highlighted: (i) role biology secondary sources data; (ii) approach schematically local factors processes acting on below-species taxon.