The American Biology Teacher,
Journal Year:
2023,
Volume and Issue:
85(9), P. 500 - 506
Published: Nov. 1, 2023
Many
high
school
students
learn
about
nutrient
cycling
during
biology,
environmental
science,
and
agriculture
classes.
These
lessons
often
focus
on
soil
plants,
is
usually
taught
independently
from
climate
change.
Scientists
know
that
animals,
including
fish,
can
have
strong
effects
(i.e.,
nitrogen
phosphorus)
in
ecosystems.
Additionally,
research
has
shown
phosphorus
excretion
rates
of
animals
increase
with
water
temperatures.
We
worked
to
design
conduct
experiments
using
common
fish
(zebrafish)
explore
the
impact
change
cycling.
This
allowed
hands-on
laboratory
experience.
In
2021,
we
participating
a
residential
summer
program
Georgia.
Meanwhile,
2022,
enrolled
local
visited
university
campus
two
occasions
participate
experiments,
once
again
Students
all
three
groups
showed
an
increased
understanding
role
ways
may
these
processes,
despite
variable
results
experiments.
also
science
processes
were
more
likely
feel
like
part
community.
believe
be
done
classrooms
expand
students’
scientific
process,
cycling,
Functional Ecology,
Journal Year:
2022,
Volume and Issue:
38(1), P. 52 - 72
Published: Oct. 31, 2022
Abstract
Ecosystem
engineers
strongly
influence
the
communities
in
which
they
live
by
modifying
habitats
and
altering
resource
availability.
These
biogenic
changes
can
persist
beyond
presence
of
engineer,
such
modifications
are
known
as
ecosystem
engineering
legacy
effects.
Although
many
authors
recognize
legacies,
some
case
studies
quantify
effects
few
general
frameworks
describe
their
causes
consequences
across
species
or
types.
Here,
we
synthesize
evidence
for
legacies
how
consideration
key
traits
improves
understanding
likely
to
leave
persistent
modifications.
Our
review
demonstrates
that
ubiquitous,
with
substantial
on
individuals,
processes.
Attributes
may
promote
persistence
influential
relate
an
engineer's
traits,
including
its
body
size,
life
span
living
strategy
(individual,
conspecific
group
collection
multiple
co‐occurring
species).
Additional
lines
inquiry,
recipients
respond
(e.g.
density
richness)
mechanism
burrowing
structure
building),
should
be
included
future
research.
Understanding
patterns
these
evaluating
losing
them
is
important
area
research
needed
long‐term
ecological
responses
global
change
biodiversity
loss.
Read
free
Plain
Language
Summary
this
article
Journal
blog.
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Journal Year:
2023,
Volume and Issue:
98(5), P. 1509 - 1529
Published: April 24, 2023
Megaherbivores
perform
vital
ecosystem
engineering
roles,
and
have
their
last
remaining
stronghold
in
Africa.
Of
Africa's
megaherbivores,
the
common
hippopotamus
(Hippopotamus
amphibius)
has
received
least
scientific
conservation
attention,
despite
how
influential
activities
appear
to
be.
Given
potentially
crucial
influence
of
hippos,
as
well
mounting
concerns
threatening
long-term
persistence,
a
review
evidence
for
hippos
being
engineers,
effects
engineering,
is
both
timely
necessary.
In
this
review,
we
assess,
(i)
aspects
hippo
biology
that
underlie
unique
potential;
(ii)
evaluate
ecological
impacts
terrestrial
aquatic
environments;
(iii)
compare
other
extant
African
megaherbivores;
(iv)
factors
most
critical
engineering;
(v)
highlight
future
research
directions
challenges
may
yield
new
insights
into
role
megaherbivores
more
broadly.
We
find
variety
key
life-history
traits
determine
hippo's
influence,
including
semi-aquatic
lifestyle,
large
body
size,
specialised
gut
anatomy,
muzzle
structure,
small
partially
webbed
feet,
highly
gregarious
nature.
On
land,
create
grazing
lawns
contain
distinct
plant
communities
alter
fire
spatial
extent,
which
shapes
woody
demographics
might
assist
maintaining
fire-sensitive
riverine
vegetation.
water,
deposit
nutrient-rich
dung,
stimulating
food
chains
altering
water
chemistry
quality,
impacting
host
different
organisms.
Hippo
trampling
wallowing
alters
geomorphological
processes,
widening
riverbanks,
creating
river
channels,
forming
gullies
along
well-utilised
paths.
Taken
together,
propose
these
myriad
combine
make
megaherbivore,
specifically
because
high
diversity
intensity
compared
with
capacity
transfer
nutrients
across
boundaries,
enriching
ecosystems.
Nonetheless,
pollution
extraction
agriculture
industry,
erratic
rainfall
patterns
human-hippo
conflict,
threaten
persistence.
Therefore,
encourage
greater
consideration
engineers
when
considering
functional
importance
megafauna
ecosystems,
increased
attention
declining
habitat
populations,
if
unchecked
could
change
way
many
ecosystems
function.
Royal Society Open Science,
Journal Year:
2023,
Volume and Issue:
10(1)
Published: Jan. 1, 2023
Organismal
movement
can
bring
individuals,
resources
and
novel
interactions
across
ecosystem
boundaries
into
recipient
habitats,
thereby
forming
meta-ecosystems.
For
example,
Pacific
salmon
ecosystems
receive
large
marine-derived
nitrogen
subsidies
during
annual
spawning
events,
which
have
a
wide
range
of
effects
on
aquatic
terrestrial
plant
species
communities.
In
this
study,
we
evaluate
the
cross-ecosystem
nutrient
growth
reproduction.
We
conducted
large-scale
field
experiment
with
four
treatments:
(i)
addition
pink
(
Oncorhynchus
gorbuscha
)
carcass,
(ii)
drift
seaweed
rockweed
Fucus
distichus
),
(iii)
both
+
rockweed,
(iv)
control.
examined
treatment
leaf
fitness-associated
floral
traits
in
common
estuarine
wildflower
species.
found
elevated
∂
15
N
all
sampling
years
treatments
carcass
additions
but
did
not
observe
any
differences
per
cent
nitrogen.
also
observed
larger
area
two
species,
context-dependent
increase
display
limited
seed
set
response
to
treatments.
sum,
our
study
suggests
that
marine
nutrients
affect
Animals,
Journal Year:
2023,
Volume and Issue:
13(8), P. 1302 - 1302
Published: April 11, 2023
Physical
obstacles
within
animal
habitats
create
barriers
to
individual
movements.
To
cross
those
barriers,
specific
corridors
are
used,
some
of
them
created
by
keystone
species
such
as
Eurasian
beavers
(Castor
fiber).
Their
dams
on
rivers
may
also
increase
habitat
connectivity
for
terrestrial
mammals,
but
the
significance
that
function
has
never
been
quantified.
investigate
this,
we
placed
tracking
tunnels
beaver
dams,
fallen
trees,
and-as
a
control-on
floating
rafts.
Additionally,
tested
kinetic
sand
novel
substrate
collecting
tracks
and
found
paws
small
mustelids
precisely
imprinted
in
medium,
allowing
easy
identification.
However,
needed
lump
all
shrews
rodents
smaller
than
water
voles
(Arvicola
amphibius)
into
one
category
they
can
only
be
detected
not
identified.
The
highest
mammalian
activity
was
observed
provide
shelter,
offering
protection
from
predators
during
river
crossing
or
permanent
residence,
even
opportunity
hunt
invertebrates.
Slightly
higher
diversity
logs
because
proportion
mustelids,
which
select
exposed
locations
scent
marking.
Our
results
our
body
knowledge
about
an
ecosystem
engineer
tool
monitoring
mammal
activity.