Page 28 - aruba-today-20170408
P. 28

A28

SCIENCESaturday 8 April 2017

 ‘BioBlitz’ scientists to survey California desert valley 

CHRISTOPHER WEBER               This May 6, 2009, photo provided by the Nature Conservancy shows scientist Maurice Hall along                                         full and complete under-
Associated Press                the wild and scenic stretch of the Amargosa River, which is BLM land east of Death Valley, Calif.                                     standing of the area, it can
LOS ANGELES (AP) — Sci-                                                                                                                                               be really gratifying when
entists will fan out across a                                                                                                                       Associated Press  we’re able to do this kind
California desert valley this                                                                                                                                         of detailed work,” she said.
weekend to take an inven-       regular count of hundreds      said.                           And mammologists will                                                  Since the 1972 survey, the
tory of everything there        of bird species, two species   But the status of many oth-     track footprints and scat in                                           Nature Conservancy has
that flies, hops, runs, swims   of desert fish and a tiny en-  er living things in the val-    the hopes of spotting bob-                                             worked with the land man-
or grows in the dirt.           dangered rodent called         ley remains a mystery that      cats, mountain lions, coy-                                             agement bureau to pro-
It’s been 45 years since        the Amargosa vole, she         some three dozen scientists     otes, rabbits and kit foxes.                                           tect the biodiversity within
researchers last scoured                                       hope to shed light on start-    The valley stretches into                                              the Amargosa River Water-
Amargosa Valley near the                                       ing Friday.                     Nevada but the Bio-Blitz will                                          shed — employing scientif-
northern edge of the Mo-                                       Entomologists will tote nets    focus on a 26-mile section                                             ic study and land acquisi-
jave Desert. That account-                                     while on the lookout for        along the Amargosa River                                               tion and restoration.
ing of species led to fed-                                     certain flies, beetles, crick-  on the California side, east                                           The weekend’s base camp
eral protections within the                                    ets and grasshoppers.           of Death Valley.                                                       will be at a date farm that
remote region and new                                          Botanists will search for two   Parker said she looks for-                                             sits along a creek that
scientific understanding of                                    rare plants that may have       ward to hearing her col-                                               feeds into the river, where
its biodiversity.                                              emerged from dormancy           leagues’ shouts of excite-                                             herpetologists are hope-
Over three days, experts in                                    following heavy winter          ment echo over the land-                                               ful they’ll find the endan-
a variety of fields will once                                  rains that prompted rare        scape as they make dis-                                                gered Amargosa toad
again tally birds, bats,                                       desert blooms elsewhere in      coveries.                                                              hopping around.
toads, crickets, coyotes,                                      California.                     “Since we don’t have a                                                 Bats have been seen near
lichen and native plants,                                                                                                                                             the farm and researchers
said Sophie Parker, a senior                                                                                                                                          will use echolocation to
scientist with the Nature                                                                                                                                             determine where they for-
Conservancy.                                                                                                                                                          age and roost.
“We’re revisiting this area                                                                                                                                           “The river has cliffs and
to determine how it has                                                                                                                                               canyons and caves along
changed over the past                                                                                                                                                 it where there may be
several decades,” said                                                                                                                                                bats,” Parker said Wednes-
Parker, who’s organizing                                                                                                                                              day. “This would definitely
the “Bio-Blitz” with officials                                                                                                                                        be adding knowledge, to
from the federal Bureau of                                                                                                                                            get an understanding of
Land Management.                                                                                                                                                      exactly where they are.”
Researchers have kept a                                                                                                                                               Parker, a soil ecologist,
                                                                                                                                                                      plans to spend most of her
                                                                                                                                                                      time on hands and knees,
                                                                                                                                                                      digging for what she calls
                                                                                                                                                                      a “living crust” of lichens,
                                                                                                                                                                      mosses and bacteria com-
                                                                                                                                                                      mon along certain river-
                                                                                                                                                                      banks.
                                                                                                                                                                      “It’s a very small-scale eco-
                                                                                                                                                                      system, and that’s what
                                                                                                                                                                      gets me individually excit-
                                                                                                                                                                      ed,” she said. “But it’s the
                                                                                                                                                                      collective effort that this
                                                                                                                                                                      whole thing is all about.”q
   23   24   25   26   27   28   29   30   31   32