27
HOW THIS BOOK IS ORGANIZED
There are two separate sections with species
accounts. The first is for our native
crayfishes which are intended to be fairly
comprehensive. Each of these will include
two maps, one with Nebraska collections
and a second illustrating the North American
range. The second section if for nonnatives
and will be simple overviews of the species
and will include only a North American
range map.
The Nebraska collections map will show all
collection locations for that species in
Nebraska. On this map, no attempt was
made to distinguish between historic and
current collection locations for the simple
reason that few (< 6%) collections were
made before 1993.
The second map is a North American range
map. While there are range maps presented
in other publications and online, I decided to
ignore those and develop my own from
published materials and online resources.
These include: Aiken
3
, Bergey et.al.
10
,
Bouchard and Robison
14
, Campos and
Rodriquez-Almaraz
20
, Creaser and
Ortenberger
32
, Crocker
35, 36
, Crocker and
Barr
37
, Daniels
41
, Dieter
47
, Durbian et.al.
52
,
Eversole and Jones
57
, Francois
70
, Ghedotti
75
,
Hayer et.al.
93
, Helgen
97
, Hobbs
100, 101, 106
,
Hobbs and Hart
108
, Hobbs and Jass
110
,
Hovingh
115
, Hubert
116, 117
, Jass
122
,
Jezerinac
124, 125, 126
, Jezerinac and Thoma
127
,
Lippson
140
, Loughman
146
, Minckley and
Deacon
162
, Morehouse and Tobler
170
,
Newcombe
171
, Ortmann
177
, Page
180
,
Pearse
182
, Phillips
189
, Pflieger
188
, Reimer
198
,
Schuster et.al.
208
, Schuster and Taylor
207
,
Simon
211
, Simon et.al.
212
, Sovell and
Guralnick
216
, Taylor et.al.
231
, Taylor and
Schuster
228
, Thoma and Jezerinac
233
, Thoma
and Armitage
232
, Unger
238
, Wagner et.al.
239,
240
, Wetzel et.al.
245
, Williams and Bivens
249
,
Williams and Leonard
247
, Williams et.al.
248
,
Ziser
255
.
Note that several states and provinces have
no published information on their crayfishes
though a few have distribution maps
available on agency websites. These latter
are not listed here as the internet addresses
for these frequently change. Also, it is
sometimes not known if the range in a
particular state is the native range or a
combination of native and introduced
populations.
