Population dynamics across selected habitat variables of the helminth community in coyotes, Canis latrans, from south Texas.

摘要: The effects of selected intrinsic variables operating on host subpopulations and extrinsic across the collective population distributions 10 common helminth species from coyotes in south Texas were compared. sex presence severity sarcoptic mange had little effect most species. combined influences (1) seasonal changes (2) delineated by age responsible for overdispersed Oncicola canis, Physaloptera rara, Protospirura numidica. Overdispersion Ancylostoma caninum, Alaria marcianae, Spirocerca lupi populations resulted almost exclusively heterogeneity factors contributing to their rates establishment, survival, reproduction as generated subpopulations. Aggregated abundances A. caninum marcianae occurred young hosts, but cumulative older animals infected with S. lupi. hypothesis that within population, rather than is main factor generating overdispersion natural pop- ulations was confirmed only 3 (A. lupi). appeared be equal to, or some instances greater importance than, these forces over determining dispersion patterns (0. P. numidica). Taenia pisiformis, Meso- cestoides lineatus, Oslerus osleri, Toxascaris leonina not affected, minimally influenced, variables. habitat are highly correlated life cycle mode transmission respective