Short Event Description:Students will answer questions involving content knowledge and process skills in the area of ecology and adaptations in featured North American biomes.
What is the term for an organism with no natural predators.
Re: Ecology B/C
Posted: September 6th, 2016, 2:31 pm
by texas
Apex Predators
What is the sum total of all the genes that exist among all the individuals of a species?
Re: Ecology B/C
Posted: September 6th, 2016, 4:18 pm
by bhavjain
texas wrote:
Apex Predators
What is the sum total of all the genes that exist among all the individuals of a species?
gene pool
Re: Ecology B/C
Posted: September 19th, 2016, 7:26 pm
by tm-scioli
Explain how tundras, taigas, and deciduous forests impact global warming.
Re: Ecology B/C
Posted: September 20th, 2016, 5:31 am
by gavinnupp
All three of these act as carbon sinks via storing atmospheric CO2 (a greenhouse gas) in the soil
Re: Ecology B/C
Posted: September 20th, 2016, 1:13 pm
by tm-scioli
True for taiga and deciduous, but with the melting of the permafrost, millennia of frozen lichen and mosses are now available to decomposition by bacteria. This decomposition releases lots of methane which is roughly 86 times more potent of a greenhouse gas than CO2, and this easily outweighs the marginal amount of CO2 that is taken up by the sparse tundra vegetation
Your turn
Re: Ecology B/C
Posted: September 20th, 2016, 7:53 pm
by gavinnupp
Basing off principles of ecology, explain the extinction of the Passenger Pigeon (Ectopistes migratorius) of the deciduous forest during the 19th century.
Re: Ecology B/C
Posted: September 20th, 2016, 9:26 pm
by tm-scioli
I guess if I'm basing my answer off of the image, then habitat destruction and over-hunting decimated and fragmented the population resulting in its eventual extinction. Now we have european starlings instead.
Re: Ecology B/C
Posted: September 21st, 2016, 6:06 am
by gavinnupp
Passenger pigeons used the strategy of migratory predator-satiation (shown here as occurring in too great of numbers to be taken in entirety by the few local hunters). The undoing of this was the overpredation/overharvest incurred when the commercial pigeon industry arose. Fragmentation and disturbance of nesting/roosting habitat also took a great toll.
Your go.
Re: Ecology B/C
Posted: September 21st, 2016, 2:07 pm
by tm-scioli
Roughly describe temperatures and precipitation throughout the year in taigas and deciduous forests.
