Threats to Biodiversity Flashcards
What are some indirect threats that are resulting in a loss of biodiversity?
agriculture, commercial, and roads
What are some direct threats that are resulting in a loss of biodiversity?
invasive species, climate change, and habitat loss
The equation to figure out the impact of population is I=PAT, what does P, A , and T stand for?
P: number of people
A: average income
T: level of technology
What term is described as the interconnection of resource and labor market?
Globalization
What term is described as an area with high biological diversity that is threatened by human activity?
biodiversity hotspot
What is the primary cause of biodiversity reduction?
habitat destruction
What term is described as when more carbon is being absorbed than produced?
carbon sink
What type of destruction is happening to corals?
global warming, acidification, tropical storms, pollution, and over harvesting
What term is described as the process of large continuous area of habitat reduction in a area that is subdivided?
habitat fragmentation
What does fragmentation result in?
increased edge habitat, center habitat w/ smaller buffer from edge, and fragments host smaller populations
What is the term that is described as plastic debris broken down by waves and light
microplastic
What term is described as the transfer of toxins in which the concentration increases in organisms higher up in the food chain?
biomagnification
What are the effects of acid rain?
lowers pH of soil and water ways, and lowers microbial activity
What are some ways in which we have negatively altered the planet?
cultural eutrophication, oil spills, nuclear waste
Explain the Global Green House
When heat is trapped by incoming energy close to the earths surface by the earth’s atmosphere, then creates this “green house effect” by making it really warm on the planet from the trapped gasses.
Temperature ________ have mirrored CO2 ____________.
increases; increases
How can historical carbon and temperature be estimated?
by natural archives such as; ice scores, coral skeletons, and tree rings
There are some shifting distributions happening, what could they look like?
Marine species predicted to move away from poles, and the migration south with slow or even stop
In 2100 there are predictions of acidification to happen, what will be a result of this?
The pH of water will be below 8, meaning that there will be fewer carbonate ions, resulting in fewer marine calcifiers which will result in a decrease in food for some and less carbon.
What are some examples of over exploitation?
advanced techonology with capturing (trawl nets), bush meat crisis, and wildlife trade
What is an example of a wildlife trade?
CITES; Convention on International Trade in Endangered Species. They monitor/manage/ and regulate the trade of about 39,000 species
Describe in your own words what an invasive species is.
An invasive species is an organism that is present in an area that is not native that cause great harm to the ecosystem it is in
What are some threats posed when it comes to invasive species?
competition, predation, parasitism, altered ecosystems
What term is described as hybrids between rare and common species resulting in the loss of unique genotypes within the rare species?
genetic swamping
Describe zoonosis
a disease which can be presented to human by animal
