Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Title: biology notes
Description: notes on biotic and abiotic factors in nature
Description: notes on biotic and abiotic factors in nature
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
Local ecosystem field study: Is
Brewongle suitable for quolls?
Introduction: the ecosystem this field study took
place in was in an open forest, this ecosystem has
a lot of sandstone rock, and natural vegetation
...
Their diet consists of gliders,
possums, small wallabies, rats, birds etc
...
Method:
1
...
2
...
·To record the texture of the soil we had to
crush the soil in our hands and determine
whether it was sandy, clay, clay sand etc
...
(air)
·To measure the temperature in the air we
used a regular thermometer,
·when we recorded the moisture in the air
we used a hygrometer, you have to read
both temperatures on the hygrometer one
is dry one is wet and then calculate the
difference between the 2 temperatures
then use the chart to determine relative
humidity
...
You have to turn it on to x100
and take a reading from waist height and
then add 2 zeros to the reading
...
·To find the aspect we got a compass and
faced down the transect which determined
the aspect
...
·Lithology is the most common rock found
in the area which we determined to be
sandstone
...
9°c
pH: 6
texture: sandy
leaf litter depth: 5 cm
Gully 2 air – temperature: 28°c
moisture%: 85%
light intensity: 358 LUX
Gully 2 geography – slope: 15°
Aspect: south
Elevation: 61mtr
Lithology: sandstone
Ridge 1 soil – temperature: 23
...
When animals
walk across it and leaves scat that fertilizes
the soil and when water seeps into it
...
• wind: wind is another factor that changes
all the time, the ridge will be windier most
of the time as its more open so more wind
passes through there more so than the
gully
...
• humidity: humidity changes all the time,
for high humidity to occur it must have
either been raining or is raining and the
temperature is also high
...
Suitability of brewongle for four
animal species:
Judging by the habitat assessment we filled
out I think this environment would suit a
variety of animals such as fruit bats,
venomous snakes and lizards and the
spotted-‐tail quoll
...
And they’re right next to the river so
that they can all drink
...
Trophic interactions:
An example of the relationship between
predator and prey would be that predator
gains energy through eating the prey,
predators can affect prey populations
greatly depending on how many there are
of each species
...
Examples of
these can be grass being the producer and
rabbit being the consumer
...
There are enough tree hollows, hollow logs and
caves for them to live in and enough animals such
as possums, wallabies and birds to survive
...
Brewongle is situated right next to the
river so the quoll has a good source of
water as well, and because of brewongle’s
location it’s a sought after spot for
organisms that the quoll can eat
...
Human impacts:
There wasn’t much ‘human impact’ on the
site that we studied except for the walking
tracks made so that we could get to the
sites where we were conducting our tests
...
The lack of human impact
is good for the quoll and the other animals
...
Its already got enough shelter,
enough food, and a great water supply
Title: biology notes
Description: notes on biotic and abiotic factors in nature
Description: notes on biotic and abiotic factors in nature