Pd 2 Leopards: Human Impact + Abiotic & Biotic Limiting Factors that Effect Natural Selection by Kellie Stover https://padlet.com/stoverk/jczym3alunf8 Each student must add a note to this padlet. 1- Put your note in the column of your ASSIGNED Topic; 2 - Type the name the Limiting Factor first - 3.Next Identify/type if that factor is abiotic or biotic - 4. Finally, explain how that factor effects "natural selection" See Mrs. S for clarification if needed en-us 2018-03-26 18:32:59 UTC 2026-03-05 11:23:26 UTC hello@padlet.com Mia Bertoldi (Land Use) https://padlet.com/stoverk/jczym3alunf8/wish/246876601 Land Use
Mostly Abiotic and in some cases Biotic like farmland
-Makes species divide and find new land
-Makes food harder to find (cuts down supply and carrying capacity)
-Pollution from Urbanization can ruin habitats
-Farming pesticides can hurt species
-An example is a Florida panther, who’s species is forced to live in a small part of Florida because of human expansion.]]> 2018-03-28 13:12:24 UTC https://padlet.com/stoverk/jczym3alunf8/wish/246876601 Kylie Dixon kdixon7 https://padlet.com/stoverk/jczym3alunf8/wish/247814458 Deforestation (Biotic)
- The Hawaiian Crow used to be abundant on the islands of Hawaii
- Was important for spreading seeds of native plants
-The Hawaiian Crow is now extinct because of deforestation ]]> 2018-04-02 14:27:24 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247814458 Luke McCorkle https://padlet.com/stoverk/jczym3alunf8/wish/247814656 Invasive species (Biotic)

-Snakehead fish were brought here from Asia and Africa around 2002
-Disrupts native fishes and recreational fishing
-Southern states were hit harder by the snakehead species
-If someone caught a snakehead, they were to kill it and throw it back into the water.]]> 2018-04-02 14:27:55 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247814656 Noah Drexler https://padlet.com/stoverk/jczym3alunf8/wish/247814875 Deforestation 
-Deforestation is a biotic limiting factor.
-Cutting down trees which is what deforestation is will take away certain species homes.
 -An example would be the monarch butterfly’s. 
-We cut down the trees so their population has dropped by 15% in the Mexican forest in the last year. 
-They have lost 86% of their population since 1996%.]]> 2018-04-02 14:28:33 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247814875 Katie Barrett https://padlet.com/stoverk/jczym3alunf8/wish/247816300 Selective Breeding( Biotic)
- Selective Breeding is done on many farm animals
- Two species ( The Belgian White and Blue and Dutch Red and White cattle) from farms were impacted by Selective Breeding
- The species that were born due to Selective Breeding had trouble reproducing and needed more assistance during births.
- Because they require more assistance during births and the births are more complicated this throws off natural selection
- The species may not be able to reproduce and they require assistance from farmers this isn’t the process of natural selection.

Article: https://wiki.groenkennisnet.nl/display/TAB/Chapter+1.13+Negative+effects+of+animal+breeding

]]> 2018-04-02 14:32:35 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247816300 Kevin Ding-Vaccinations (Biotic) https://padlet.com/stoverk/jczym3alunf8/wish/247818162 Vaccinations save lives and prevents harmful diseases every year. Injections can consist of 3 different formulas. It can have dead cells so the body quickly sends cells to analyze the dead disease (kind of like a autopsy) and creates DNA “blueprint” for an antibody (basically a defender) to terminate the invaders (next time they arrive) and stores it in the nucleus. Another method is to send the antibody itself so that the cells produce it- I don’t know if this method works, most of the time the cells just kill it. The last method is to send weak versions of the disease so that the antibodies are quickly produced-in which there is a problem called antibiotic resistance. The bacteria have a very very very low chance (well, in vaccinations) to have a mutation that prevents it from the antibody. But, logically, there are thousands of not-so-smart people using Tylenol when they have a headache or something like that.]]> 2018-04-02 14:38:11 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247818162 Emily Donegan https://padlet.com/stoverk/jczym3alunf8/wish/247818280 Natural Disater (Abiotic) 

A few examples of natural disasters are avalanches, tsunamis, earthquakes etc. 
 
A specific example of a natural disaster is a flood. Floods are limiting factors since they create loss of livestock, damage to property, and loss of many species lives. 

An example of a specific flood is the China flood of 1931. This is considered the wosrt flood in history. 

When species with desired traits die off due to their habitat or food supply being destroyed it will mess with natural selection. Those traits will begin to be lost if they cannot be spread through reproduction.

]]> 2018-04-02 14:38:33 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247818280 Jonathan Saunders https://padlet.com/stoverk/jczym3alunf8/wish/247818911 -natural disasters (abiotic)

-forest fires force animals out of their natural habitat 

-once animals get to their new habitat and they are not adapted to their new environment and they get hunted until they adapt ]]> 2018-04-02 14:39:58 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247818911 Ally Brown (abiotic) Pest Control https://padlet.com/stoverk/jczym3alunf8/wish/247820598 Pest Controls: Despite their benefits, pesticides can be hazardous to both humans and the environment. Countless chemicals are environmentally stable, prone to bioaccumulation, and toxic. Less than 1% of the total amount of pesticides applied for weed and pest control reach the target pests.]]> 2018-04-02 14:44:40 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247820598 Adrianna Malena https://padlet.com/stoverk/jczym3alunf8/wish/247821740 Selective Breeding(Biotic)
-An issue in selective breeding is that Farm Animals (for example cows)depend more on humans for survival 
-Humans influence on how they want cows to be has changed them drastically 
-Cows have evolved larger utters because it is more convenient for humans due to the fact that larger utters produce more milk
-This effects natural selection because now there is too much milk for the calves which isn't necessary (May have an impact on future populations)

]]> 2018-04-02 14:47:31 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247821740 Luke Hoover https://padlet.com/stoverk/jczym3alunf8/wish/247821783 Pollution (Abiotic)

-Pollution effected peppered moths by changing the color of the trees
-This caused some moths of the light color to die cause they were easier to see
-This also caused a drop in the moth population
-This forced the moths to have to adapt to the new environment]]> 2018-04-02 14:47:38 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247821783 Emma Taylor - Pollution (abiotic) https://padlet.com/stoverk/jczym3alunf8/wish/247821875 - Pollution can affect the genetics of animals
- Chemical pollutants that make their way into animals' systems have been shown to cause direct changes to genetic diversity
- Genetic pollution occurs when wild populations mix with or are affected by genetically modified organisms
- It also affects crops wild populations become extinct when outcompeted by those that have been modified ]]> 2018-04-02 14:47:55 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247821875 Kara Brown https://padlet.com/stoverk/jczym3alunf8/wish/247822644 Hibernation (biotic)

• Global warming is disrupting hibernation patterns
• After a very warm summer in England, hedgehog pups were born late
• They were unable to put on enough weight to prepare for hibernation in the smaller time window
• With less strored energy to burn, the hedgehog pups starved

https://news.nationalgeographic.com/news/2007/02/070202-groundhog.html]]> 2018-04-02 14:50:10 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247822644 Grant Zimmerman grazimmerman https://padlet.com/stoverk/jczym3alunf8/wish/247822681 Hibernation (abiotic)
-Marmots that hibernate are waking up earlier due to global warming.
-Because they’re waking up earlier, they wake up before the environment is consistently able to support them.
-They become out of sync with the environment and use up all of their energy before they are able to replace it.
-Natural Selection has a field day.
https://news.nationalgeographic.com/news/2007/02/070202-groundhog.html]]> 2018-04-02 14:50:16 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247822681 Alec Bai https://padlet.com/stoverk/jczym3alunf8/wish/247823870 Selective Breeding (biotic)

-Selective breeding is very common in dogs.
-Two of the same breeds of dogs are bred together to create pure bred dogs
-Two parents of the same breed are bred together to produce pure bred children (biotic)

-This effects natural selection because it makes the two pure parents bred, and the offspring will have pure genes. 



https://www.scientificamerican.com/article/although-purebred-dogs-can-be-best-in-show-are-they-worst-in-health/#]]> 2018-04-02 14:53:31 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247823870 Andrew Randall https://padlet.com/stoverk/jczym3alunf8/wish/247824621 Land use (abiotic)
-sea ice forms later in the fall and melts sooner in the spring
-because of this change polar bears are starting to eat more land animals to fight for the land
-less land will make the carrying capacity smaller 
-eventually there will be a little ice left and the strongest on the land will live and the weakest will die

https://news.nationalgeographic.com/news/2014/03/140331-global-warming-climate-change-ipcc-animals-science-environment/]]> 2018-04-02 14:55:53 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247824621 Emma Pavone https://padlet.com/stoverk/jczym3alunf8/wish/247825227 Migration (abiotic)

-by people migrating to open areas they will start to build on the land not giving the animals their land. 

-the people will also build highways and roads along that land decreasing the animals land. 

-also by building it will ruin the animals habitat and won’t give the animals anywhere to lay their eggs or nest and they will have to move and might die in the pr]]> 2018-04-02 14:57:37 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247825227 Caroline Glus https://padlet.com/stoverk/jczym3alunf8/wish/247825522 Selective chicken breeding (biotic)
-Humans have impacted the natural selection process of chickens.
-They do this by selectively breeding the chickens to produce more eggs
-They take the hens that produce the most eggs and breed them to increase the chance of their offspring being good layers as well.
-This way they can have more eggs to sell. 
-This is affecting natural selection because they aren’t allowing the hens and roosters to reproduce in their natural way. ]]> 2018-04-02 14:58:25 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247825522 Isaac Peca https://padlet.com/stoverk/jczym3alunf8/wish/247843557 Selective Breeding (biotic) in cats.

- Some female cats are bred too early

- If bred too early, the female cat will put her energy into feeding the newborn kittens rather than finishing her growth.

- If she doesn’t finish her growth than this could cause the population to decrease because this can cause the female’s baby to become sick.

- This affects natural selection because many offspring can become ill/sick, when they could be perfectly healthy if they weren’t selectively bred.

]]> 2018-04-02 15:47:50 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247843557 Katherine Tootchen kattootchen https://padlet.com/stoverk/jczym3alunf8/wish/247845613 Pest Control (abiotic)

  • Swiss chemist Paul Wüller discovered the insecticidal properties of DDT (dichloro-diphenyl-trichloroethane) in 1934.
  • It seem like a good thing because it was cheep,  stable, easily applied, and highly toxic to insects while being only mildly harmful to mammals.
  • It was not as good as it seemed because it quickly killed many benificial organisms, and the insects it was used against became immune and rebounded in surplus.
  • Although not very bad in it’s dry form, if disolved in water it can seep through skin and cause harm. 
  • DDT can easily travel through the food chain and effect the whole ecosystem. It had a large effect on many fish eating birds, most notably the bald eagle.
  • DDT was banned in the United States in 1972.
]]> 2018-04-02 15:53:36 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247845613 Maggie Tarkenton https://padlet.com/stoverk/jczym3alunf8/wish/247935621 Over predation: biotic
   
-Animals over hunt/eat too much. They want to compete to eat more food then others. Some animals also hibernate, so they will gather food before hibernation. That can cause limited food supply. 

-Eating too much brings down the food supply for other animals, that would mean they would eventually be extinct in that area because of the low amount of food available.


]]> 2018-04-02 20:51:07 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247935621 Alex Pryor https://padlet.com/stoverk/jczym3alunf8/wish/247958530 2018-04-03 00:29:09 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247958530 Alex Pryor https://padlet.com/stoverk/jczym3alunf8/wish/247968515 Migration
- biotic 
- Human expansion can result in destroying or changing animals migration paths, feeding grounds, and breeding grounds. Due to this, animals have to change them, which could be fatal, for they could be prevented from reaching vital food and water sources. Animals could also be prevented from finding appropriate land for reproduction, which can lead to the population shrinking. 
- Wildebeast are a perfect example. Wildebeasts have one migration pattern that circles from South Kenya to North Tanzania. The Serengeti highway was planted in the wildebeasts migration path, leaving the Wildebeast population to shrink due to the species not finding land to reproduce.]]> 2018-04-03 01:54:24 UTC https://padlet.com/stoverk/jczym3alunf8/wish/247968515 Zachary Knull https://padlet.com/stoverk/jczym3alunf8/wish/248094460 Disease biotic

If a species of bird has a disease that makes individuals fly slower than individuals without the disease.  In the population of birds, 50/100 birds have this disease.


if this bird has a predator, like a hawk or an eagle, the bird relies on its flight to escape. So if a predator comes around, and our population of birds takes off in flight to escape, the slower individuals are more at risk for being killed. The disease-free, faster birds will escape more often than the diseased slow birds. When breeding season comes, there will be less diseased birds to breed than healthy birds.

]]> 2018-04-03 13:06:13 UTC https://padlet.com/stoverk/jczym3alunf8/wish/248094460 Erin Walter https://padlet.com/stoverk/jczym3alunf8/wish/248098539 Invasive Species: Biotic
Cane beetles became a huge pest for farmers in Australia in the 1930’s, so the solution that farmers thought of was toads that had apparently had an appetite for cane beeteles.
But when the toads arrived, they began to move out across the continent instead of staying and controlling the beetles.
People in Australia became very annoyed with the toads and mayors encourage the townspeople to squash the frog whenever they spot one.]]> 2018-04-03 13:14:15 UTC https://padlet.com/stoverk/jczym3alunf8/wish/248098539 Ding, Kevin-Vaccinations con. https://padlet.com/stoverk/jczym3alunf8/wish/248101211 Anyways, when people use Tylenol for a small headache, it increases the chance for a bacteria/virus to gain a mutation immunity to the medicine. While other cells are dying inside the body, the immune cells will reproduce (]]> 2018-04-03 13:19:02 UTC https://padlet.com/stoverk/jczym3alunf8/wish/248101211 Andrew https://padlet.com/stoverk/jczym3alunf8/wish/248443632 Land use for mine should be climate]]> 2018-04-04 11:39:50 UTC https://padlet.com/stoverk/jczym3alunf8/wish/248443632