bio exam, guest lectures Flashcards
in Keptin Purdys discussion of traditional indigenous knowledge , we learned about Chaga. What was not described as one of the medicinal benefits of this fungus
highly effect laxative
what are invasive species according to Mathew smith
that has been introduced to an environment where it is non-native, or alien, and whose introduction causes environmental or economic damage or harm to human health.” -
what are the four invasive species that Mathew smith mentioned
- European green crab
- chain pickeral
- Hemlock wooly adeligid
dr smith described invasive species as
Non- native species which have economic, medical or environmental impacts
In Ms Ceasers lecture what does the broadleaf plantain do
prefers growing in open sun
is useful for trading insect bites
what is the use of Ash trees by Kept Jeff Purdy
pack baskets
what are some examples of novel ecosystems (Mathew Smith)
- old field succession
- forest and aquatic ecosystem decline
in Dr smiths presentation on conservation in National parks, the national parks act of 1930;
transitioned parks to being developed as a place of preservation
how do the fish tags work
the tags take light, depth and temperature
What are spring tides
largest tides
what are neat tides
happens when the moon is perpendicular to the sun
what percent of the minus basin would an instream turbine occupy
A single 16 m diameter turbine in the FORCE site would occupy 0.06% of the Minas Passage X-sectional area
what does a hypo-osmotic fish
loses water by osmosis, which it compensates for by drinking water and producing small quantities of urine
what is an ecosystem
the biotic assemblage of organisms that live in an area, as well as the abiotic environment affecting that assemblage
what is a biosphere
the regions of the earth and atmosphere where living organisms exist
what is a population
a group of members of the same species that occupy the same environment and have the potential to interbreed
what is a community
an assemblage of different species that live in the same place at the same time
what is a biome
a biome is a large community of vegetation and wildlife adapted to a specific climate. Characterized by physical characteristics such as temperature and precipitation
what is a biosphere
the region on the surface of the earth and atmosphere where living organism exist
what is biodiversity
the variety of life in the world or in a particular habit or ecosystem
how does energy flow communities
water carbon nitrogen phosphorous ultimately lost from an ecosystem as heat
what is an aquifer
porous underground deposit that holds water bounded below by impervious layer
what are the three phases of stress
alarm, resistance, exhaustion
in resistance phase what hormones are released
Cortisol, epinephrine, growth hormone and thyroid hormones
what happens in the exhaustion phase of being stressed
insomnia, fatigue, loss of appetite, chronic long term stress
what happened in the alarm phase of stress
immediate reaction to a stressor
magnitude of response is related to magnitude of stressor
A single oak tree can support hundreds of beetles, caterpillars and other primary consumers. This would be best presented by
an inverted pyramid of numbers
in succession, the ability of one species to make the area more suitable for another species is called
facilitation
in the island biography model, species richness is a balanced between
immigration and extinction
top down factors that can control the population sizes of plants or animals include which of the following
the density of herbivores
what is general global pattern of species richness
increasing from polar areas toward the tropics