Methods in Ecology and Evolution,
Год журнала:
2021,
Номер
12(6), С. 1093 - 1102
Опубликована: Фев. 27, 2021
Ecosystem
heterogeneity
has
been
widely
recognized
as
a
key
ecological
indicator
of
several
functions,
diversity
patterns
and
change,
metapopulation
dynamics,
population
connectivity
or
gene
flow.In
this
paper,
we
present
new
R
package-rasterdiv-to
calculate
indices
based
on
remotely
sensed
data.
We
also
provide
an
application
at
the
landscape
scale
demonstrate
its
power
in
revealing
potentially
hidden
patterns.The
rasterdiv
package
allows
calculating
multiple
indices,
robustly
rooted
Information
Theory,
reproducible
open-source
algorithms.
Methods in Ecology and Evolution,
Год журнала:
2017,
Номер
9(2), С. 305 - 319
Опубликована: Авг. 10, 2017
Abstract
Hutchinson's
n
‐dimensional
hypervolume
concept
underlies
many
applications
in
contemporary
ecology
and
evolutionary
biology.
Estimating
hypervolumes
from
sampled
data
has
been
an
ongoing
challenge
due
to
conceptual
computational
issues.
We
present
new
algorithms
for
delineating
the
boundaries
probability
density
within
hypervolumes.
The
methods
produce
smooth
that
can
fit
either
more
loosely
(Gaussian
kernel
estimation)
or
tightly
(one‐classification
via
support
vector
machine).
Further,
accept
abundance‐weighted
data,
resulting
be
given
a
probabilistic
interpretation
projected
into
geographic
space.
demonstrate
properties
of
these
on
large
dataset
characterises
functional
traits
distribution
thousands
plants.
are
available
version
≥2.0.7
r
package.
These
provide:
(i)
robust
approach
shape
hypervolumes;
(ii)
efficient
performance
high‐dimensional
datasets;
(iii)
improved
measures
diversity
environmental
niche
breadth.
Joint
species
distribution
modelling
(JSDM)
is
a
fast-developing
field
and
promises
to
revolutionise
how
data
on
ecological
communities
are
analysed
interpreted.
Written
for
both
readers
with
limited
statistical
background,
those
expertise,
this
book
provides
comprehensive
account
of
JSDM.
It
enables
integrate
abundances,
environmental
covariates,
traits,
phylogenetic
relationships,
the
spatio-temporal
context
in
which
have
been
acquired.
Step-by-step
coverage
full
technical
detail
methods
provided,
as
well
advice
interpreting
results
analyses
broader
modern
community
ecology
theory.
With
advantage
numerous
example
R-scripts,
an
ideal
guide
help
graduate
students
researchers
learn
conduct
interpret
practice
R-package
Hmsc,
providing
fast
starting
point
applying
joint
their
own
data.
Abstract
Every
living
creature
on
Earth
is
made
of
atoms
the
various
bioelements
that
are
harnessed
in
construction
molecules,
tissues,
organisms,
and
communities,
as
we
know
them.
Organisms
need
these
specific
quantities
proportions
to
survive
grow.
Distinct
species
have
different
functions
life
strategies,
therefore
developed
distinct
structures
adopted
a
certain
combination
metabolic
physiological
processes.
Each
thus
also
expected
requirements
for
each
bioelement.
We
propose
“biogeochemical
niche”
can
be
associated
with
classical
ecological
niche
species.
show
from
field
data
examples
biogeochemical
characterized
by
particular
elementome
defined
content
all
(or
at
least
most)
bioelements.
The
differences
among
function
taxonomy
phylogenetic
distance,
sympatry
(the
bioelemental
compositions
should
differ
more
coexisting
than
non‐coexisting
avoid
competitive
pressure),
homeostasis
continuum
between
high
homeostasis/low
plasticity
low
homeostasis/high
plasticity.
This
proposed
hypothesis
has
advantage
relative
other
theoretical
hypotheses
it
easily
actual
quantification
measurable
trait:
given
organism
or
community,
being
potentially
applicable
across
taxa
habitats.
changes
availability
determine
genotypic
selection
feedback
ecosystem
organization,
and,
end,
become
another
driving
factor
evolution
environment.
Nature Communications,
Год журнала:
2019,
Номер
10(1)
Опубликована: Май 23, 2019
Species,
and
their
ecological
strategies,
are
disappearing.
Here
we
use
species
traits
to
quantify
the
current
projected
future
strategy
diversity
for
15,484
land
mammals
birds.
We
reveal
an
surface,
structured
by
life-history
(fast-slow)
body
mass
(small-large)
as
one
major
axis,
diet
(invertivore-herbivore)
habitat
breadth
(generalist-specialist)
other.
also
find
that
of
all
possible
trait
combinations,
only
9%
currently
realized.
Based
on
species'
extinction
probabilities,
predict
this
limited
set
viable
strategies
will
shrink
further
over
next
100
years,
shifting
mammal
bird
pool
towards
small,
fast-lived,
highly
fecund,
insect-eating,
generalists.
In
fact,
our
results
show
decline
in
is
much
greater
than
if
were
simply
lost
at
random.
Thus,
halting
disproportionate
loss
associated
with
threatened
animals
represents
a
key
challenge
conservation.
Global Ecology and Biogeography,
Год журнала:
2022,
Номер
31(7), С. 1399 - 1421
Опубликована: Май 12, 2022
Understanding
the
variation
in
community
composition
and
species
abundances
(i.e.,
β-diversity)
is
at
heart
of
ecology.
A
common
approach
to
examine
β-diversity
evaluate
directional
by
measuring
decay
similarity
among
pairs
communities
along
spatial
or
environmental
distance.
We
provide
first
global
synthesis
taxonomic
functional
distance
analysing
148
datasets
comprising
different
types
organisms
environments.
