Where Are the Birds at?

by FelixMorin on September 6, 2017 - 5:57pm

Felix Morin

Stephania Dascalescu

Laura Henry

Migration and Habitat of Birds  

 

What we already know (from the book Just Cool It!)

·         Poorly situated wind farms, especially ones using older turbine technology, do kill birds, but it<s an issue that can be addressed, it’s not the biggest big killer

·         Fossil fuels, especially coal, are by far the largest energy-related bird killers.

·         Heavy metals created by burning coal kill a lot of birds and even change their songs, which affects their ability to mate and protect the territory.

·         House cats kill billions of birds per year.

·         Habitat loss is a major threat for birds.

·         Birds have an ability to warn us of incoming storms. Therefore, if their populations are lessened, we, as humans, have more difficulty to see storms coming.

 

What we learned

Migration

Birds are in danger due to increasing temperatures, flooding or desertification. Because of the desertification, many birds, during their migration, can’t rely on areas such as the Sahel region, for example, they can’t rest there due to the lack of rainfall that causes the crops to stop growing.

Birds are either migrating earlier or later than they’re supposed to, which means that they don’t arrive when the preys are most available. Therefore, if they don’t have enough food to eat, they can’t concentrate on mating and the populations decrease. Some birds also just stop migrating because of the changes in weather patterns. Since the temperature takes longer to get colder, some birds just wait around until it’s too late. Therefore, birds that are stopping their migrations are in danger, and endanger other bird species, such as the ones who are still migrating. In fact, it creates competition between bird species when many occupy the same territory, even for a short amount of time, like in migration.

Birds have to have incredible timing when they migrate. In order to do so, they have to sense the season changes by observing the light the sun gives. However, because of climate change, the weather is not matching how long the sun stays up. Their preys are based on temperature rising. Therefore, they’re only laying their eggs when it’s starting to get hot, which doesn’t coincide with the sunlight anymore because of climate change. That way, the timing of birds is off and their food supply diminishes.

 

Habitats

Since their habitats are being destroyed, birds are going to move and migrate to stay in the ideal climate. If they change habitats, the food and nesting materials they need might not be there. Also, they may face new parasites and unknown predators. The birds won’t know how to react to these new predators, which can cause the populations to decrease.

With sea levels rising, many birds who inhabit coastal areas will have no more land to lay their eggs. Moreover, the accessibility to make a habitat for themselves is decreased because of the erosion of beaches and storms surges.

With global temperature rising, invasive pests and plants may spread in other regions and destroy bird habitats by making them unfit for them. Many bird species may be affected by diseases such as malaria, transmitted by mosquitoes. For example, higher areas such as mountain tops create a shelter for birds, since mosquitoes can’t reach these areas. However, with temperature rising, mosquitoes can reach to higher areas and therefore, more birds are threatened by malaria.

 

Sites used:

“How is climate change affecting birds”

·         http://naturecanada.ca/what-we-do/bird-conservation/climate-change-birds/

“Climate change and migratory birds”

·         http://www.worldmigratorybirdday.org/2007/index44cb.html

“Birds in a changing climate”

·         http://www.environmentalscience.org/birds-changing-climate

“Songbirds are being trolled by climate change”

·         https://qz.com/984130/songbirds-are-being-trolled-by-climate-change/

 

Comments

.

About the author