Posts

Showing posts with the label climate change

Effects of Climate Change on Animal Physiology

Image
The study of physiology basically deals with the functions and mechanisms within a living system. These functions and mechanisms may be influenced by the external environment. Changes in temperature for example can affect the growth, reproduction, and  survival of organisms. Thus, studying animal physiology can help us determine the effect of climate change on the diversity and distribution of organisms. Changes in temperature Changes in environmental temperatures have a great influence on species geographical distribution, population collapse, species extinction, and on an organism's growth and reproduction[1].  Molecular, cellular, and systemic processes within a living system function at a limited range of temperature (thermal window). Performance in an organism's growth, reproduction, foraging, immune competence, behaviors and competitiveness is directly affected by climatic warming. Such performance is supported by increase in oxygen consumption by aerobic...

Environmental issues: Threats to Biodiversity

Image
In the previous post, we have discussed the importance of conserving biodiversity. To be able to successfully do that, we have to understand and identify the threats to biodiversity. There are several major threats to biodiversity. These include habitat loss, introduction of invasive species, over harvesting, climate change and pollution. 1. Habitat loss This happens when an area is changed dramatically that it is no longer able to support species it once sustained[2]. Loss of habitat is usually caused by alterations by humans to meet their needs. This can be clearing forest areas to make way for agriculture or urban development. Mining and logging for use in constructions is also an example of habitat loss caused by humans. These activities can lead to species extinction as resources also needed by species living in that area is removed[1]. 2. Introduction of invasive species Invasive species are species not native to an area. Introduction of such species to new areas c...