The animals typically live around 10 to 12 years in the wild because of dangers like predation, stress, disease and competition.
These stressors, either alone or in combination with other stressors such as insect attack, disease, or competition, can result in mortality.
Camels, as the most important animal of the desert ecosystem, can be a tool to combat the new challenges of drought, environmental changes, global warming and creeping desertification, threats of new disease and competition for feed and water resources.
Resources are increasingly used to target specific diseases – cancer, diabetes, heart disease – with competition and silos between disease-based groups.
Phenological observations corroborated on the one hand that phenological phases can exhibit remarkable inter-annual variability and large spatial differences due to individual characteristics such as genes and age and environmental factors such as meteorological conditions at the micro- and macro-scale, soil conditions, water supply, diseases, and competition.
Although the white-fleshed Aylesbury was once the favoured meat duck in England, disease and market competition from the yellow-fleshed Pekin duck have led to its decline.
Eq. (2), also known as the predator-prey equations, is a pair of nonlinear evolution equations frequently used to describe the dynamics of biological systems with competition, disease and mutualism [28].
Starting with their phylogenetic relationship and following a summary of the current knowledge on the dog's ancestry we explore how dogs can represent a direct threat for wolves through hybridization, disease transfer and competition.
These can be organized as environmental processes and disturbances (e.g., currents, tides, mixing, resource extraction), interspecific interactions and other ecosystem processes (e.g., predation, competition, disease), demographic processes and life histories (e.g., migration, recruitment, survivorship, behavior) and genetic processes (e.g., mutation, selection, gene flow).
This becomes even more confounding given the likely potential for conflating interactions between environmental conditions, competition, disease, and predation.
