Journal of Biogeography,
Journal Year:
2020,
Volume and Issue:
47(11), P. 2472 - 2482
Published: Aug. 16, 2020
Abstract
Aim
We
investigate
the
spatiotemporal
context
of
diversification
Allobates
,
a
widespread
genus
Amazonian
frogs
with
high
species
diversity
particularly
in
western
Amazonia.
tested
if
that
originated
situ
or
through
repeated
dispersals
from
other
areas
and
this
took
place
during
after
Pebas
system,
vast
lacustrine
system
occupying
most
Amazonia
between
23
10
million
years
ago
(Mya).
Location
Taxon
(Anura:
Aromobatidae).
Methods
gathered
spatially
taxonomically
extensive
sampling
mitochondrial
DNA
sequences
932
specimens
to
delimit
Operational
Taxonomic
Units
(OTUs).
Complete
mitogenomes
these
OTUs
were
assembled
reconstruct
time‐calibrated
phylogeny
used
infer
historical
spatial
origin
lineages.
Results
Phylogenetic
analyses
ancestral
area
reconstruction
suggested
lineages
resulted
events
occurred
inferred
(25
Mya)
Mya,
possible
peak
14
Mya.
Dispersal
among
mostly
towards
Brazilian
Guiana
Shields.
Closely
related
display
an
allopatric
pattern
distribution,
matching
interfluves
delimited
by
modern
rivers.
Main
Conclusions
In
Amazonia,
appears
have
been
simultaneous
last
stages
(14–10
Mya).
Subsequently
(within
Mya),
river
courses
shaped
distribution
possibly
promoted
speciation.
Tropical Conservation Science,
Journal Year:
2019,
Volume and Issue:
12
Published: Jan. 1, 2019
Building
bridges
between
environmental
and
political
agendas
is
essential
nowadays
in
face
of
the
increasing
human
pressure
on
natural
environments,
including
wetlands.
Wetlands
provide
critical
ecosystem
services
for
humanity
can
generate
a
considerable
direct
or
indirect
income
to
local
communities.
To
meet
many
sustainable
development
goals,
we
need
move
our
trajectory
from
current
destructive
wiser
wetland
use.
The
article
contain
proposed
agenda
Pantanal
aiming
improvement
public
policy
conservation
Pantanal,
one
largest,
most
diverse,
continuous
inland
world.
We
suggest
discuss
list
11
interfaces
science,
policy,
region
linked
agenda.
believe
that
functional
science
network
booster
collaborative
capability
creative
ideas
solutions
address
big
challenges
faced
by
wetland.
Science,
Journal Year:
2023,
Volume and Issue:
380(6642), P. 298 - 301
Published: April 20, 2023
Areas
set
aside
for
conservation
within
private
lands
may
be
key
to
enhancing
biodiversity-friendly
landscapes.
This
strategy
should
especially
effective
in
highly
threatened
regions
that
are
poorly
protected
by
public
lands,
such
as
the
Brazilian
Cerrado.
Brazil's
Native
Vegetation
Protection
Law
has
included
set-aside
areas
properties,
but
their
relevance
not
been
evaluated.
We
assess
whether
contributing
biodiversity
Cerrado,
a
global
priority
and
major
region
food
production,
where
land
use
conflicts
often
at
odds
with
objectives.
determined
accommodate
up
14.5%
of
vertebrate
species
ranges,
which
increases
25%
when
considering
distribution
remaining
native
habitat.
Moreover,
spatial
spread
benefits
large
number
species.
Ecological
restoration
would
improve
this
protection
system,
Southeastern
economic
hub
meets
threat
hotspot.
Scientific Reports,
Journal Year:
2020,
Volume and Issue:
10(1)
Published: Sept. 15, 2020
Neotropical
mammal
diversity
is
currently
threatened
by
several
chronic
human-induced
pressures.
We
compiled
1,029
contemporary
assemblages
surveyed
across
the
Neotropics
to
quantify
continental-scale
extent
and
intensity
of
defaunation
understand
their
determinants
based
on
environmental
covariates.
calculated
a
local
index
for
all
assemblages-adjusted
false-absence
ratio-which
was
examined
using
structural
equation
models.
propose
hunting
socioenvironmental
co-variables
that
either
intensify
or
inhibit
hunting,
which
we
used
as
an
additional
predictor
defaunation.
Mammal
average
erased
56.5%
source
fauna,
with
ungulates
comprising
most
ubiquitous
losses.
The
widespread,
but
more
incipient
in
hitherto
relatively
intact
major
biomes
are
rapidly
succumbing
encroaching
deforestation
frontiers.
Assemblage-wide
body
mass
distribution
greatly
reduced
from
historical
95th-percentile
~
14
kg
only
4
modern
assemblages.
Defaunation
depletion
large-bodied
species
were
primarily
driven
pressure
remaining
habitat
area.
Our
findings
can
inform
guidelines
design
transnational
conservation
policies
safeguard
native
vertebrates,
ensure
"empty
ecosystem"
syndrome
will
be
deterred
reaching
much
New
World
tropics.
PLoS ONE,
Journal Year:
2018,
Volume and Issue:
13(9), P. e0204515 - e0204515
Published: Sept. 25, 2018
Mammals
represent
the
largest-bodied
elements
of
world's
surviving
megafauna
and
provide
several
key
ecosystems
services,
yet
their
populations
are
often
under
steep
decline
throughout
tropics.
Anthropogenic
defaunation
is
one
most
important
contemporary
threats
to
modern
mammal
faunas.
Although
Atlantic
Forest
biome
South
America
shows
clear
signs
defaunation,
extent
which
this
has
lost
its
fauna
remains
poorly
understood.
Here,
we
collate
analyze
a
comprehensive
body
secondary
data
quantitatively
assess
spatial
patterns
all
medium-
large-bodied
mammals
were
then
classed
by
morpho-ecological
traits.
We
used
Defaunation
Index,
was
scaled-up
entire
using
kriging
interpolation,
examine
integrity
site-specific
further
use
environmental
socioeconomic
predictors
explain
drivers
defaunation.
Our
results
show
high
levels
(>0.5)
for
Forest.
Apex
predators,
other
carnivores,
large
herbivores
among
defaunated
functional
groups.
Remaining
native
vegetation
cover,
forest
fragment
size,
largest
neighboring
remnant
main
negative
conclude
that
threat
due
historical
population
losses
continue
today.
A
conservation
action
plan
thus
becomes
imperative
prevent
from
becoming
an
even
"emptier
forest",
severely
compromising
diversity,
ecological
processes
ecosystem
functioning.
Microbiology Spectrum,
Journal Year:
2022,
Volume and Issue:
10(2)
Published: March 2, 2022
A
One
Health
approach
for
antimicrobial
resistance
must
integrate
whole-genome
sequencing
surveillance
data
of
critical
priority
pathogens
from
human,
animal
and
environmental
sources
to
track
hot
spots
routes
transmission
developing
effective
prevention
control
strategies.
As
part
the
Grand
Challenges
Explorations:
New
Approaches
Characterize
Global
Burden
Antimicrobial
Resistance
Program,
we
present
genomic
WHO
carbapenemase-resistant,
ESBL-producing,
and/or
colistin-resistant
Escherichia
coli
strains
isolated
humans
nonhuman
in
Brazil,
a
country
with
continental
proportions
high
levels
resistance.
Science Advances,
Journal Year:
2021,
Volume and Issue:
7(38)
Published: Sept. 17, 2021
The
destruction
of
natural
vegetation
in
recent
decades
has
been
concentrated
the
tropics,
where
ecosystem
processes
underpin
global
homeostasis
and
harbor
most
world’s
biodiversity.
Protected
areas
(PAs)
are
primary
societal
tool
to
avoid
this
destruction,
yet
their
effectiveness
is
often
questioned.
Here,
we
quantified
impact
PAs
indigenous
lands
avoiding
34
years
forested
nonforested
biomes
Brazil.
We
showed
that
odds
PA
network
four
times
lower
than
unprotected
areas,
generally,
positive
effect
extends
a
buffer
zone
around
PAs.
Among
effective
groups
those
older,
larger,
located
Amazonian
region,
lands.
Despite
setbacks
for
Brazilian
system,
highlight
benefits
biodiversity
climate
if
they
were
instead
strengthened.