The impact of the mongoose on small game
The mongoose: a predator and invasive species
The mongoose, the only natural representative of the mongoose family in Europe, is known for its varied and opportunistic diet. Its distribution in the Iberian Peninsula has increased in recent years, generating conflicts in hunting, where it is believed to have a significant impact on species such as rabbits and red-legged partridges. However, this new study puts these beliefs into perspective. If you want to learn more about invasive species in Spain, you can click: INVASIVE SPECIES IN SPAIN
Researchers used advanced modeling and monitoring techniques, such as GPS tagging, scat analysis, and population counts, to measure:
- Density of mongooses : It was estimated between 0.40 and 0.57 mongooses/km², lower figures than in other study areas such as Doñana.
- Density of rabbits and partridges : High variability in rabbits (14.0-881.4 rabbits/km²) and consistently low densities of partridges (2.3-6.9 partridges/km²) were observed.
- Predation impact : The percentage of rabbit and partridge populations consumed by mongooses was evaluated in different areas and seasons.
Main findings
- Rabbits : In areas with high rabbit densities, the impact of the mongoose was lower (1.9–3.8%) and focused on juveniles with lower reproductive value. In areas with lower densities, the impact reached up to 29%.
- Partridges : The impact on the red-legged partridge was low in all areas and seasons (<9%).
- These data suggest that the impact of the mongoose is considerably lower than that perceived in the hunting environment.
Implications for management
This study, the first to quantify the impact of the mongoose on small game species, provides critical data for effectively managing conflict between predators and game species. It also underscores the need to base management perceptions and strategies on scientific evidence, fostering a balanced and sustainable approach.
Author: María Balletbó