Endemic Populations

In this post we will show the endemic populations in Colombia, and factors affecting their variations

What is an endemic population?

An endemic population are those populations that are restricted to a geographic location and cannopt be found in other places. If this populations are found in other places, so they stop being endemic.

Endemic populations can be on a river, country, city or even a house.  The variations of places of endemic populations is great and all living things can be endemic

Also endemic populations are more vulnerable to get extincted because their genetic change to natural conditions is lower and because they used to be reduced in number of invididuals.

Endemic populations in Colombia:

Yellow-headed manakin:

It is a bird that usually his length is 13cm. Its peek is palid and its eyes are orange or red. The male used to be yellow and its legs black, and the females are more opaque and its legs are pink. They dont use to be in groups.

Why is it endemic?

Because they can only be found in the Andes in Colombia and in Equator. Also they are species that usually use to not migrate, and the number of invididuals are decreasing.

Variations according in factors affecting it:

Food: This birds feeds with fruit trees and some insects.

Location: They live in forests and in mature secondary woodlands

Habitat loose: The places where this birds used to live are being reduced, this make the birds to also                           be reduced in space, and in the number of invididuals

Deforestation: The remove of forests has made the habitat of these birds to get reduced and also to                              reduced the fruit trees where this birds eat, reducing the insects too.

Other populations: There are also other populations that affect these birds eating the same fruit trees                                     or even eating the birds

The same birds: If the environmental resources are low the carryig capacity of the habitat will get                                  lower, making an intraspecific competition( where animals of the same specie                                      compete between them to get the few resources) making the population to be                                        reduced

Inmigration of other species: Inmigration of other species can get the birds to move necessarily to                                                      other places and the inmigrations can reduce easily some resources.

All of these factors give us the result that this population is vulnerable, according with the UICN. The current population trend is decreasing and if we dont do anything, the population will get extincted in a few years.

The conclution is that the human can be the most dangerous animal, making many populations to get extincted by deforestation, pollution, etc. But is not to late, we can help to stop pollution, go out and do the first step.

Here you can see our conceptual map about the topic to understand better:

https://drive.google.com/file/d/0B47_dOPq-NKpdlFieGowdWhDYWM/view?usp=sharing

Sources: https://cienciaybiologia.com/especies-endemicas/
http://www.inbio.ac.cr/es/biod/estrategia/Paginas/diversidad02.html
https://mx.answers.yahoo.com/question/index?qid=20100517161126AAAAuGi
http://gabriellopezr.blogspot.com.co/2009/06/factores-que-afectan-la-fauna.html
https://www.google.com/maps/d/viewer?mid=1b-If_Qm1rOnDswa2whQvDvdIZuk&hl=en_US&ll=4.132398858063554%2C-76.15978000000001&z=7
http://www.icesi.edu.co/wiki_aves_colombia/tiki-index.php?page=Saltar%C3%ADn+Dorado
https://es.wikipedia.org/wiki/Chloropipo_flavicapilla
http://www.iucnredlist.org/details/22701147/0
Juan Sebastian Olarte-Gabriel Rios           8-40

Why did the salmon price increased this year?

Why did the salmon price has increased this year?

Salmon Price Increased this year

The salmon is probably one of the most consumed fishes in the worlds, but this year 2017 the salmon price has increased, that makes us wonder Why did the salmon price increased?

In this blog we will help you to know that

 First we will talk about the salmon

The salmon is a fish that live in the northern Atlantic and Pacific oceans,  most types of salmon are born in fresh water, migrate to the sea, and return to freshwater to reproduce. The salmon can vary in many species with many different characteristics.

 It is one of the favorite sea foods in the worlds, which means that many people hunt them from the rivers.

Now the questions we have been wondering Why did the salmon price increased?

The price of salmon will continue to rise during the coming months. Everything because of a small plague of sea lice, a parasite that feeds from the blood and skin of the salmon that has contaminated a large number of these ones, As TIME says.
The price of the salmon has increased a 40% in 2016 over the previous year.

The Sea Lice

The increase in salmon farms has caused this parasite to spread rapidly and has affected a large number of these,  increasing its price.

This problem has also affected every wild salmon specimens that move near the farms, so the pest has spread beyond these farms. Among the causes of this new pest, as explained by researchers, are factors such as rising water temperature.

But this is not the only reason

The grew of algaes in Chile, in 2016, ended up with 135000 tons of salmon, this obviously increased salmon price

I hope you enjoyed this post

Juan Sebastian Olarte- Gabriel Rios 8-40

Sources:
https://www.thesun.co.uk/living/2109792/why-the-cost-of-fish-is-rising-not-brexit/

http://www.delish.com/food-news/news/a45807/why-salmon-is-getting-more-expensive/

https://qz.com/888169/the-price-of-salmon-is-rising-because-of-a-massive-sea-lice-epidemic/

INTRODUCTION

This blog is from science of eighth grade of the Saint Viator School , taught by the professor Eliecer Covian.

Here we will be writing what we have seen in class.

For this we are following G +  famous science magazine profiles.

Https://plus.google.com/+scientificamerican
Scientific American

Https://plus.google.com/+popsci
Poupular Science

Https://plus.google.com/+NatGeo
National Geographic

Also you can follow me
https://plus.google.com/u/0/104897206954399196377


Juan Sebastian Olarte-Gabriel Rios 8-40
8-40