How can we help?

You can also find more resources in our Help Center.

54 terms

lc biology ecology field work

practical ecology
STUDY
PLAY
profile map
a drawing which outlines the surface of the land showing the height and depths of hills and valleys.
direct count
works with things that are stationary and you count everything in the area following a direct search
beating tray
Tray held under tree when shaken to catch species
pooter
_____________ are Jars with two tubes which you inhale on to suck up an insect or other small invertebrates without crushing them.
tullgren funnel
trap designed to catch tiny soil organisms by making them move away from hot, dry bright conditions.
mammal trap
the longworth trap is a ________________ used to keep caught animals alive
plankton net
a cone-shaped net of fine gauge material that can be towed through the water column to collect zooplankton and larger algae in a glass bottle at the end
key
a ___________ is used to identify organisms in botany or biology,
quadrat
type of sampling method were standard frames in randomly selected areas are used for the sampling abiotic factors, plants, or sedentary animals
capture-recapture method
a way to estimate populations by capturing, tagging, releasing and recapturing a sample the original sample. Total population= (number of org marked in 1st capture X total caught in 2nd capture)/number marked in 2nd capture,
random sample
a survey population, selected by chance, which fairly represents the general population. eg trowing a stopper to place a quadrat
grid
a ______________ is a network of horizontal and vertical lines that provide coordinates for locating points on an image, map or ecosystem
environmental gradient
The change in characteristics in an environment from one area to another, A gradually changing environmental factor. eg altitude, salinity in river esturary dept of soil on hillside etc,
pH
a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions.
light intensity
Used to describe the amount of light reaching an object, particularly green plants. It is affected by latitude, seasons, shading, cloud cover, etc. It is often a limiting factor in ecosystems.
humidity
the amount of water vapor in the air
humus
material formed from decaying leaves and other organic matter
salinity
a measure of the amount of dissolved salts in a given amount of liquid
exposure
open situation or position in relation to the sun, elements, or points of the compass.
cup anemometer
An instrument used to measure wind speed.
hygrometer
measuring instrument for measuring the relative humidity of the atmosphere
experimental results
Scientific method holds no theory is valid unless its predictions are in accord with _________________
biotic factors
living parts of an ecosystem
abiotic factors
nonliving or physical factors that shape an ecosystem
qualitative result
a result containing no numbers just like colors, feelings, etc.
quantitative study
A research study that is based on numerical data.,
aims to determine the relationship between the independent variable and the depended variable in a population
identify
________________ is to recognize and be able to name a living organism or thing
estimate
an _____________ is a number that is not exact; a careful guess
fauna
______________ are all the animal life in a particular region
flora
___________ are all the plant life in a particular region
pitfall trap
open container buried to its rim in soil and used to catch animals active on the soil surface.,e.g. insects on ground simply fall in passive trap, ants ground beetles
cryptozoic trap
traps for animals that hide in or under things eg logs , old piece of carpet, sack. etc
natural classification
a classification system that arranges organisms into groups whose members share many characteristics inheritance patterns linneaus
artificial classification
May be constructed for convenience using easily observed characteristics.
Winged flying creatures - bats, robins, butterflies
Non winged flying creatures - mites, penguins, humans
adaptation
inherited characteristic that increases an organism's chance of survival
interdependence
when two things rely on each other, eg flowers and bees
percentage cover
An estimate of the abundance of a plant by counting the number of squares in a quadrat containing the species and expressing the result as a percentage.
frequency
The rate at which something occurs over a particular period or in a given sample.
conclusion
a summary of the results of the experiment and a statement of how the results relate to the hypothesis
assess
_____________ is to analyze and determine the nature, value, or importance of your results
analyse
interpret data to reach conclusions
frequency quadrat
a quadrat that is divided into smaller squares to assist estimating / counting the relative abundance of the organisms in it
belt transect
A band of chosen width along an environmental gradient, usually 1m wide quadrat along a transect line
dicotamous key
identificatrion key giving two options at each level
ACFOR scale
abundant common frequent ocassional and rare terms used to describe the frequency of an organism in a quadrat
DAFOR scale
dominant abundant frequent ocassional and rare terms used to describe the frequency of an organism in a quadrat
kite diagrams
Method of showing zonation graphically, shows abundance and distribution of members of species.
vasculum
Small box or case used for carrying collected plant specimens
plant press
plants are dried between sheets of absorbent paper in a _____________________ before storing in a herbarium
herbarium
A collection of dried plants scientifically arranged for study.
topography
The surface features of a place or region. The ______________ of a region includes hills, valleys, streams, lakes, bridges, tunnels, and roads.
aspect
in a mapping term, it is the way something is facing. Eg The hillside had a notherly aspect, ie. the faces north
slope
The steepness of a side of a hill is its ____________
insectivorous
(of animals and plants) feeding on insects