Biotic factors are the living components of an ecosystem that influence and interact with other organisms and their environment. These factors include all organisms, from plants and animals to fungi and microorganisms, which play roles in food chains, symbiotic relationships, and ecosystem dynamics.
An ecological niche refers to the role and position a species has in its environment, including all its interactions with the biotic and abiotic factors. It encompasses how a species meets its needs for food and shelter, how it survives, and how it reproduces, thus contributing to the ecosystem's overall structure and function.
Competition is a fundamental economic and biological principle driving innovation, efficiency, and adaptation by encouraging entities to improve and differentiate themselves to gain an advantage. It can lead to both positive outcomes, such as technological advancements and consumer benefits, and negative consequences, such as monopolistic practices and environmental degradation.
Biotic potential refers to the maximum reproductive capacity of an organism under optimal environmental conditions, without any limiting factors such as food scarcity or disease. It is a theoretical concept that helps in understanding the growth potential of populations and the dynamics of ecosystems.
The intrinsic rate of increase is a measure of how fast a population can grow when not limited by resources, reflecting the maximum potential growth rate under ideal conditions. It is a fundamental concept in ecology and population biology, influencing conservation, management, and understanding of species dynamics.
Density-independent factors are environmental variables that affect population size regardless of the population's density, often resulting in sudden and dramatic changes in population numbers. These factors include abiotic elements like weather, natural disasters, and human activities that can impact populations uniformly, irrespective of their density.
Density-dependent regulation refers to processes where population growth rates are regulated by the density of a population. These mechanisms often involve competition for resources, predation, disease, and waste accumulation, which intensify as population density increases, ultimately stabilizing population size in ecosystems.