Page 18 - 2005 DT 12 Issues
P. 18

One Tough Bird                       condors were seemingly doomed to     February General
                                             extinction along with their meal tick-  Meeting Notes
                o California condors lead a  ets. But condors were not the only
                charmed life? At the brink of  large birds common in the region dur-     A  motion  was made and
        Dextinction in 1983, these           ing the last ice age. They were one of  unanimously carried to increase and
        magnificent birds were given a second  three large scavenger species, which  redistribute annual cash reserves
        chance in life through one of the most  included the western black vulture and  from the current approved amount of
        publicized and creative rescue efforts  the teratorn. Fossils of all three have  $130,000 for operations and $10,000
        of the century. But scientists studying  been found in the tar pits.      reserve for an education scholarship
        the La Brea tar pits near Los Angeles,   Kena Fox-Dobbs, a graduate stu-  account, to a total reserve of $140,000.
        Calif. discovered that this is not the  dent at the University of California,  $80,000 will be allocated for opera-
        first time the condor has managed to  Santa Cruz, thinks that the diets of  tions for one year; $50,000 will be
        elude oblivion. The question is why?  some condors may hold the clue to   reserved in a Visitor Center Complex
            Prior to the last ice age, condors  why the condors survived.         Building Fund; $10,000 will be re-
        ranged from the coast of British Co-     Ratios of nitrogen-14 and nitro-  served for Visitor Center critical needs.
        lumbia to Baja California and across  gen-15 in bone collagen taken from La  The education scholarship account,
                                                    Brea fossils of all three species  originally set aside for the Red Rock
                                                    suggest that some condors     Desert Learning Center (Oliver Ranch)
                                                    must have included various    has been retired until the center is
                                                    amounts of marine mammals in  operational. The completion date for
                                                    their diet. Chemical analyses of  that project is not yet available. Pat
                                                    the condor fossils showed that  Williams authored the proposal.
                                                    the birds’ diets didn’t change
                                                                                         Director Blaine Benedict and
                                                    much over a 25,000-year span.  Vice president Ray Stafford presented
                                                    Analysis of the isotopes in fos-  an excellent analysis of the financial
                                                    sils of the other two scavenger  elements underlying the redistribu-
                                                    species, preserved between    tion proposal.
                                                    35,000 and 10,000 years ago,
                                                                                         Treasurer Helen Barrett
                                                    suggests that those birds con-  reviewed income and expenses year-
                                                    sumed only the remains of     to-date, underscoring the need for new
        the southern United States to northern  browsers and grazers, such as ground  sources of revenue  since the Red
        Florida. Only the California condor  sloths and bison.                    Rock Colony contributions are at
                                                 Comparable data from condor fos-
        survived to be rescued by humans.                                         an end.
                                             sils in other regions of North America
            Near the end of the last ice age,                                            Norm Wolin presented a plan
                                             suggest that like the other two scaven-
        about 12,000 years ago, many species                                      to obtain a Red Rock Canyon chari-
                                             ger species, condors in those areas
        of large mammals disappeared from                                         table license plate  to generate
                                             maintained a similar diet of grazers and
        North America. Mastodons, wooly                                           minimum annual income of $20,000
                                             browsers. Without large marine mam-
        mammoths, saber-tooth cats, giant                                         (based on annual sales of 1,000 plates).
                                             mals to sustain them, these condors
        short-faced bears, dire wolves, cam-                                      Petitions must total at least 1,000 sig-
                                             went extinct leaving only their West
        els, giant sloths succumbed for reasons  Coast cousins to carry on the species.  natures of Nevada residents to obtain
        still being debated.                 California condors, the only remain-  the plate. (see p. 5.)
            The fossils of many of these     ing coastal representatives of their
        species are found at La Brea. Their de-  kind, were tough enough and smart  BLM Report
        mise left the larder virtually empty for  enough to beat the odds and more than  Red Rock Park Manager Mark
        scavengers that depended upon their  a bit lucky. Let’s hope their luck   Rekshynskyj gave a concise update on
        carcasses for survival. As scavengers,  holds out.                   ⌧    the plans for the Visitor Center Com-
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