Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892



Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Apply Evolutionary Thinking if the geographical ranges of species change in response to global warming, what new selection pressures will organisms face as they move into ecological communities where they have not previously occurred? Your answer should address the effects of novel species interactions, as well as the effects of encountering different physical environments.

Summary Introduction

To review:

The selection pressures in terms of species interaction and the physical environment, which might be faced by the organisms, while adjusting in new habitats in the face of climate change


The trapping of outgoing long wavelengths of infrared radiations by greenhouse gases, such as carbon dioxide and chlorofluorocarbons (CFCs), results in the greenhouse effect. An increase in the level of greenhouse gases has led to an escalation in the average temperature around the earth, which is popularly known as global warming. In the face of changing climatic conditions, organisms are now at risk from the changing temperature and are pushed to adapt to the new physical conditions. They not only face threats from existing species but also have to adjust to their new physical environment.


Global warning has allowed the frozen polar regions to now become habitable for the animals found the lower latitudes. Thus, they now pose a threat to the existing species. The level of interaction of the species will escalates as they move to new habitats and encounter newer species. The interspecies competition for food and space will be fierce.

The species of the lower latitudes will need to adjust their biological clock in accordance with the climate of their new habitat...

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