Data from: Kleptoparasitism and scavenging can stabilize ecosystem dynamics ...
Scavenging is ubiquitous in nature and yet its implications for ecosystem dynamics have rarely been investigated. We used camera traps on wolf kills to investigate the role of scavenging on predator and multi-prey dynamics in a Northern Apennine system (Italy). In contrast to North American systems,...
| Main Authors: | , , , |
|---|---|
| Format: | Dataset |
| Language: | English |
| Published: |
Dryad
2017
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.p8j38 https://datadryad.org/stash/dataset/doi:10.5061/dryad.p8j38 |
| Summary: | Scavenging is ubiquitous in nature and yet its implications for ecosystem dynamics have rarely been investigated. We used camera traps on wolf kills to investigate the role of scavenging on predator and multi-prey dynamics in a Northern Apennine system (Italy). In contrast to North American systems, throughout much of Eurasia, the omnivorous wild boar (Sus scrofa) successfully competes with wolves (Canis lupus) for the meat of their kills. We developed a deterministic multi-trophic web model (wolf, vegetation and two prey species, deer and wild boar), tunable through a parameter that governs the impact of prey-sharing between wolves and wild boar. When prey-sharing is absent or scarce, populations oscillate, but above a threshold value the trophic web is stabilized, with the regime solution becoming a fixed stable point. Both deer and wild boar then increase as a function of prey-sharing, and the impact of herbivores on the vegetation increases. When prey-sharing exceeds another threshold, however, the ... : Scavenging wolf's preyThe file contains the fate of a number of prey of wolves in the Northern Apennines (Italy). Each prey is identified in column ID. Then there are 4 columns indicating location and habitat. Then the date, the killed animal , its cutting yield in Kg., the species of consumer, group size, time of arrival and time of departure. Finally we report the amount of meat consumed (absent=n, scarce=s, medium=m, high=r)dati competizione lupo cinghiale23_2_14.txt ... |
|---|