Ecology is the science of the relationships of all living organisms with each other and with their non-living, or physical, environment. Environmental research creates the scientific basis for agriculture, forestry and fisheries; they allow predicting, preventing and eliminating the consequences of environmental pollution; help to assess the possible results of large-scale changes in the landscape, such as the construction of dams or the construction of canals; finally, they make it possible to rationally organize the protection of natural objects. 

The connection of ecology with other areas of biology is summarized in the figure; The figure shows that living organisms can be studied at different levels of organization. Ecology corresponds to the right side of this scheme and covers individual organisms, populations and communities. Ecologists call these objects the biotic component of ecosystems, or simply biota. The ecosystem also includes a non-living, or abiotic component, consisting of matter and energy. The terms «population», «community» and «ecosystem» have precise definitions in ecology, which are given in the figure. The totality of the planet’s ecosystems forms its biosphere, or ecosphere, which unites all organisms and the physical environment with which they interact. Thus, the oceans, the land surface, the lower atmosphere are all parts of the biosphere.

How Green Marketing Works

Implementing and practicing sustainable business practices is the first step toward green marketing. A company that does not practice what they preach risks being branded as dishonest, so they must ensure that their business practices match the green marketing messages. The importance of authenticity in green marketing cannot be overstated.

Companies generally have three angles of marketing their eco-friendliness:

• Items and materials used to make their products
• The actual products
• The packaging the products are sold in

They may choose to highlight how their products are all made from recycled material, how their products are designed to be recycled or reused, their use of biodegradable packaging, or a combination of the three. It’s also common to find larger corporations that participate in various programs that aim to increase company-wide recycling, decrease waste disposal, and support community initiatives.

Both grocers and restaurants are known for their green marketing. For grocers that advertise organic produce, organic food sales have more than doubled since 2010 as consumers increasingly prefer non-genetically modified foods free of pesticides.3 Restaurants that promote locally sourced meats, produce, and alcohol are thriving. Local sourcing is attractive to consumers as it projects an image of sustainability and willingness to invest in the community.

Approaches in ecology
The hallmark of ecology is its holistic approach, which assumes that the whole world is more than just the sum of all its parts. However, there are many approaches to ecology, here are just a few. An ecologist should ideally take into account all the factors interacting in a given place at once. Of course, this is impossible, so in practice, most scientists in their research prefer only one or a few of the «non-ideal» approaches listed below.

1. Ecosystem approach in ecology. With this approach, the focus of the ecologist is the exchange of energy and substances between the biotic and abiotic components of the ecosystem. Emphasis is placed on the functional relationships of organisms with each other (for example, food chains) and with their physical environment. The species composition of the biota and the fate of its individual taxa are relegated to the background.

2. The synecological approach, or the study of communities, puts the biotic component of the ecosystem at the forefront. Succession and climax communities become important objects in such research.

3. The population (autecological) approach in ecology currently uses mainly mathematical methods in studying the patterns of growth, conservation, or reduction in the number of populations of individual species. It provides a scientific basis for understanding «outbreaks» of numbers, such as pests or pathogenic microbes, and also helps to determine the critical number of individuals necessary for the survival of a rare species. Traditional autecology studies the relationship of a particular species with the environment. She tries to relate the features of its morphology, behavior, food preferences, etc. to habitat types, distribution, and evolutionary history.

4. Ecotope approach in ecology. An ecotope, or habitat, is an object limited in space. It is understood as that part of the biosphere with which an organism, population, community or ecosystem closely interacts. Any habitat is heterogeneous and can be subdivided into micro-habitats with conditions different from the average (for example, under the bark of a tree or on its leaves). This approach is convenient for studying individual environmental factors closely related to plants and animals, in particular, soil composition, humidity, and illumination.

5. Evolutionary (historical) approach in ecology. By studying changes in ecosystems, communities, populations and habitats over time, we can understand the causes of the changes, which creates the basis for more reliable predictions for the future. Evolutionary ecology is concerned with the changes that occur over geological time scales. It’s interested in, say, the influence of events such as the formation of mountain ranges on the formation and distribution of life species. It can answer, for example, why kangaroos are found only in Australia, or why such a variety of species is found in rainforests. It helps to understand what factors led to the formation and extinction of a particular species, and at a more detailed level, to explain the origin of certain features of the species morphology or reproductive strategy. Paleoecology applies such knowledge gained from the study of modern ecosystems to fossil organisms. It attempts to reconstruct the ecosystems of the past and, in particular, to understand how ecosystems and communities functioned before human intervention. Historical ecology deals with anthropogenic changes in ecosystems, that is, the impact on ecosystems of developing technologies and human cultures. The realization that man is the main factor that has a devastating effect on the environment is vital for its protection.

Especially in terms of the economic justification of certain environmental strategies, it is very important to distinguish between the actual anthropogenic and natural processes in the biosphere. For example, is the acidification of water and soil a purely natural phenomenon or is it entirely due to industrial pollution of the atmosphere and, therefore, can be overcome by intervening in production technology. The listed ecological approaches are interconnected and are not separated by clear boundaries. However, it is useful to distinguish them from a methodological point of view.