Ecology is originally defined by Ernst Haeckel in 1866, ecology is the study of the relationships that develop among living organisms and between these organisms and the environment.

In the travel, transport, and hotel context, "ecology" refers to the study of the relationships between living organisms and their environment, including the impact that human activities have on these relationships.

For example, in a hotel context, ecology might include practices such as recycling, energy-efficient lighting, and the use of non-toxic cleaning products. Similarly, in a transportation context, ecology might include practices such as reducing emissions, using alternative fuel sources, and promoting carpooling or public transportation.

The travel and transportation industry has a significant impact on the environment, and many companies in this industry are now taking steps to reduce their environmental footprint and minimize their impact on the environment. This includes implementing sustainable practices, such as recycling, reducing energy consumption, and promoting conservation of natural resources.

Examples of hotels and transportation companies that have implemented eco-friendly practices include The Westin Seattle, WA, which has a green roof and uses solar power, and Virgin Atlantic, which has implemented a number of measures to reduce its carbon emissions.

Overall, ecology in the travel and transportation context refers to the efforts of companies to minimize their impact on the environment and to promote conservation, and to make their products and services more sustainable.