PLANTS
maps: a new system
We are trying out a new mapping system for PLANTS
,
using
dynamic
, zoomable
maps
like many
others
on the web today.
Rather than clicking on
a state in a small
-
scale map to go to a
separate map for that state
showing counties
,
t
his
new system allows the user to zoom in
gradually, showing county
-
level distributions
regionally
to
locally. This new mapping system
will
have
more
changes and improvements in the future.
Navigation:
Vertical and
horizontal
You can move
the map vertic
ally or horizontally either by using the arrow keys
on your keyboard or
by
using your mouse. With your mouse
, center the arrow
over the place of interest, hold down the left mouse button, and move your
mouse.
Zooming
in and out
Our new maps have nine
sca
le
levels,
the default at the smallest scale, showing
most of North America.
County
-
level distributions are shown at the seven higher
scale levels. T
here are three ways you can zoom in or out
.
●
U
se the slider ba
r to the left side of the map
.
Click on a point on the slider bar
to adjust the map to that approximate scale, or click and drag the slider on that
bar to adjust scale.
●
D
ouble
-
click on the spot you are interested in to zoom in by one
step (you
would need to double
-
click ei
ght times to zoom in all the way)
.
●
Z
oom in by centering the mouse arrow on the point of interest and use the
scroll wheel on the mouse (if your mouse has that
function
).
Map colors and nativity:
We no longer show
separate nativity status maps. Instead, nativity status and distribution are
presented in one map.
Native plants are mapped in green, non
-
native (introduced) in blue, and
plants that are
both native and non
-
native in orange.
If no county
-
level data is
present (U.S.
states and possessions only)
then at the seven higher
scale levels those regions will
fill
in a paler
shade of the same nativity color
.
The nativity status color scheme is shown in the legend below the map, an
d a summary of
nativity within Native Status J
urisdictions is given in filled or unfilled circles below the map
legend.
This nativity summary
using circles
is most handy for jurisdictions not easily visible in
the smallest map scales (e.g. Hawaii, Puerto
Rico)
.
The main objective of this bilingual publication is to present an
updated inventory of weeds as the latest source of this information was
published by Lugo Torres and Semidey Laracuente in 2002. Included are
184 species that have been selected among the most important in the
Caribbean Area, in terms of frequency and difficulty to manage. We
include information that will help to identify weeds: shrubs, trees,
vines and other species considered invasive, all of which are associated
with agricultural lands, pastureland, industrial and urban sites, roads
and other places were they are not welcome.