Human mediated carrion: Effects on ecological processes

摘要: Humans play an essential role as modulators of energy flow within food webs in terrestrial and marine ecosystems. This is especially relevant given their capacity to generate large amounts carrion a result anthropogenic activities. These trophic subsidies have increased since the twentieth century due uses related livestock management, hunting, waste disposal sea fishing, changing way which resources are available for scavenging species. Knowledge about management key understanding supply demand mechanisms this resource necrophagous animals associated effects. Thus, changes occurrence patterns happening at global scale. Carrion has shifted from pulsed random carcasses wild animals, more predictable its appearance certain times locations depending on human occurred short period time, mainly industrialized countries with populations. As result, some scavengers been forced adapt diet manner obtaining food, modulating biological fitness, including fertility, survival, morphology, space use. To these individual effects, different population implications added, demographic (increases or decreases size density-dependence phenomena), behavioral (intra- interspecific competition migration), chorological (modulation distribution range). At community level, also produced alterations, web performance, predator-prey relationships, aspects like species richness even characteristics landscape. determinant influence humans carrion-related ecological processes requires analysis point view conservation biology. In sense, it necessary avoid negative effects leading extinction populations well ensure that provisions provided following natural patterns.