https://padlet.com/jessika_dorcas/lb4yxage6ep6 How has the spread of the Eurasian collared-dove affected different populations of native bird species? en-us 2017-10-13 22:44:50 UTC 2017-10-17 13:56:01 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Growing.png https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197729852 Claim:
When the Eurasian Collared Dove is introduced, the populations of white-winged doves will decrease.

Evidence:
- The Eurasian Collared Dove and the white-winged dove both eat seeds and berries.
- In 1981, there was an abundance of white-winged doves across the United States, but in 2017, there is a higher concentration of white-winged doves in Mexico and Southern North America, but not in the United States.
- In 1990, the only place Eurasian Collared Doves lived in the continental US was in Florida, but by 2012, the Eurasian Collared Dove was all over the continental United States.

Reasoning:
- This first piece of evidence shows that white-winged doves and Eurasian Collared Doves occupied the same niche, which means that they cannot both occupy the same niche through the competitive exclusion principle.
- Through the second piece of evidence, it is shown that the white winged dove species moved to occupy a different niche from 1981 to 2017, so that supports the idea that the white winged dove population decreased in the United States.
- Through the third piece of evidence, it is shown that the Eurasian collared dove species expanded in the United States from 1990 to 2012, so that supports the idea that the Eurasian Collared Dove was introduced during this time and it came to occupy the white-winged doves' niche.

]]> 2017-10-17 12:09:26 UTC https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197729852 https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197729938 Claim:
The Eurasian Collared Dove's spread will impact native species by introducing new competition with which they can't compete.

Evidence:
Because this dove doesn't migrate, it dominates the habitat it is in because there are so many of them. This Invasive species often colonize a community and spread rapidly.
From 1990 to 2012, the Eurasian Collared Dove spread from being inhabiting just Florida to inhabiting all of continental US.
The Eurasian Collared Bird was introduced to the Americas in 1970.
Reasoning:
The Eurasian Collared Bird spreads and colonizes rapidly, as it's an invasive species. Because they occupy a similar niche as native birds, they will easily out compete native species and lead to their extinction or endangerment. The map of where they occupy shows us how quickly they will populate and take over. ]]> 2017-10-17 12:09:43 UTC https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197729938 https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197729993 Claim:
When the Eurasian Collared-Dove was introduced to North America, both it and the common ground-dove with thrive in different niches
Evidence:
The Eurasian collared-dove's population exploded and moved north very rapidly, from just Florida to the entire continental United States and parts of Canada and Alaska, allowing for an increase of reproduction and population
The common ground-dove's population grew steadily, but it moved southward, from just the south/southwest United States to Mexico, Central America and the northern half of South America, allowing for an increase of reproduction and population
Reasoning: 
The Eurasian collared-dove is more suited to a northern climate, so it thrives in that niche, while the common ground-dove is more suited to a southern climate, so it thrives in that niche
, indicating its disposition toward a warmer climate
, which indicates it thrives in cooler temperatures]]> 2017-10-17 12:09:55 UTC https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197729993 https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197730232 Claim: When the Eurasian Collared Dove is introduced to the US the Crossbill population will decline.

Evidence:  We saw on ebird.org that the Red Crossbill used to occupy all parts of the United States, but starting in 1990 and through the current years it has moved out of the southern parts of the country where the Eurasian Collared Dove was introduced, and into the north. It was then found to be moving out of the northern part of the country and along the coast.

Reasoning: Scientist believe that the Crossbill will move into a new habitat when the Eurasian Collared Dove is introduced to Florida and starts to spread. It spread along the coast for better adaption in order to survive. There are better temperatures on the coast that allow the Crossbill to survive.]]> 2017-10-17 12:10:31 UTC https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197730232 https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197730342 Claim:
When the Eurasian Collared-Dove is introduced, it will outcompete the native species, causing the populations of native species to decrease drastically.

Evidence:
-The Eurasian Collared-Dove does not migrate. This allows them to heavily populate the areas where native birds leave in the winter as a part of their migration habits.
-Between 1990 and 2012, the Eurasian Collared-Dove had gone from living in just Florida to inhabiting the entirety of the continental United States.
-It the state of Arkansas, it took the Eurasian Collared-Dove only five years to spread from the southeast corner of the state to the northeast corner of the state.
-From 1980 to 1990, the Eurasian Collard-Doves in America were mainly located in Florida, and specs of the continental U.S. By the 2000s, it has spread over a majority of the continental U.S.
-The first physical sighting of the Eurasian Collared-Dove in North America was in 1979.

Reasoning:
The Eurasian Collared-Dove has a higher adaptability and colonizes at a rapid rate. Since the Eurasian Collared-Dove and various native species will be competing for the same resources in order to survive, and the Eurasian Collared-Dove has a higher adaptability rate, it is able to compete more effectively. This will cause other species to decrease in numbers.]]> 2017-10-17 12:10:58 UTC https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197730342 https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197735870 Claim: The introduction of the Eurasian Collared dove to North America had a negative effect on the population of the Common Ground Dove. 

Evidence: 
-The population of the Common Ground Dove decreased between the years 2001-2006 in the Midwestern region. (the majority of the population occupies this region). 
-The native species (Common Ground Dove) migrated further South towards the Gulf region. 
- In 1988 there were trend showing the decline of the native Common Ground Dove from the midwest region, and two decades later there were almost no native species in the area. 
-The Common Ground Dove has a more specific diet compared to the Eurasian Collared Dove; allowing the Eurasian Collared Dove to eat a wider variety of seeds and food. 

Reasoning: 
The Spread of the Eurasian collared dove has negatively impacted the population of the native Common Ground Dove. The map shows how the population of the native dove decline drastically in a matter of a couple of decades (in the Midwestern Region). So, we can infer that the spread of the invasive Collared Dove species occupied the niche of the native Dove. This resulted in the increased competition which most likely resulted in the migration of the native dove. The Collared Dove has a more diverse diet which allows it to eat different foods; while the Ground dove only eat specific seeds and berries. Using the evidence, we can see that the The population, map migratory pattern, and diet show how the Eurasian Collared Dove can adapt to a given environment and that it resulted in a negative impact on the native Ground dove. ]]> 2017-10-17 12:24:39 UTC https://padlet.com/jessika_dorcas/lb4yxage6ep6/wish/197735870