The selective loss of large herbivores, for instance, is known to cause relatively systematic increases in abundance of rodents [71], which are thought to be particularly effective at hosting and transmitting human - borne zoonoses, thus driving landscape - level increases in rodent - borne disease [72]. (rsos.royalsocietypublishing.org)
«Our results show that even among baseline groundwater samples collected near existing gas wells, there is no evidence of systematic increased dissolved methane concentrations closer to oil / gas wells. (nystateofpolitics.com)
There is also some evidence that smaller hosts, with faster life histories, tend to be more competent reservoirs for some common zoonoses, regardless of trophic cascades; as hunting favours these species both directly and indirectly, this may lead to systematic increases in zoonotic disease prevalence [75]. (rsos.royalsocietypublishing.org)