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A28    SCIENCE
               Thursday 5 OcTOber 2017

















              Federal government: No threatened species listing for walrus


            By DAN JOLING                                                                                                       The  agency  in  2011,  using
             Associated Press                                                                                                   aerial  surveys,  estimated
            ANCHORAGE,  Alaska  (AP)                                                                                            the  walrus  population  at
            —  The  Trump  administra-                                                                                          129,000.  More  accurate
            tion  announced  Wednes-                                                                                            mark-and-recapture  stud-
            day it will not list the Pacific                                                                                    ies  put  the  population  at
            walrus  as  a  threatened                                                                                           closer  to  280,000,  Lemons
            species  based  on  dimin-                                                                                          said.
            ished  Arctic  Ocean  sea                                                                                           Managers six years ago ex-
            ice,  concluding  that  the                                                                                         pressed concern that wal-
            marine  mammals  have                                                                                               rus hunting could have an
            adapted to the loss by for-                                                                                         effect  on  the  population.
            aging from coastlines.                                                                                              However, a lack of access
            U.S.  Fish  and  Wildlife  Ser-                                                                                     to  walrus  due  to  poor  ice
            vice officials said they can-                                                                                       conditions  have  lowered
            not determine with certain-                                                                                         the  harvest  by  Alaska  Na-
            ty that walruses are likely to                                                                                      tive hunters by one-third to
            become  endangered  “in                                                                                             one-half, Lemons said.
            the  foreseeable  future,”                                                                                          An upcoming study of the
            which the agency defines                                                                                            effect  on  walruses  having
            as the year 2060.                                                                                                   to  swim  hundreds  of  extra
            The  decision  likely  will  be                                                                                     miles to find food contains
            challenged  in  court,  said                                                                                        too much uncertainty in its
            Shaye  Wolf,  climate  sci-                                                                                         models to predict how the
            ence director for the Cen-    In this April 18, 2004, file photo provided by the U.S. Fish and Wildlife Service, Pacific walrus cows   population  will  be  affect-
            ter  for  Biological  Diver-  and yearlings rest on ice in Alaska.                                 Associated Press  ed, Lemons said.
            sity,  who  wrote  the  listing                                                                                     Wolf  disputes  that.“That’s
            petition  filed  in  2008.  She   pecially of young animals,   than  previously  thought,”  ons  said,  protections  put   a huge energy stress,” she
            called  the  decision  a  mis-  and long swims for nursing   Lemons  said.  Their  ability  in place in Alaska and Rus-  said.Sea  ice  loss  is  pro-
            representation  of  science   females  and  other  walrus-  to rest on shorelines before  sia  have  greatly  reduced   jected  to  get  worse,  Wolf
            to reach a predetermined     es to find food.             swimming  to  foraging  ar-  trampling    deaths.“Right   said,  forcing  walruses  to
            conclusion.                  “They’re   not   adapting,   eas  makes  the  threat  of  before  the  2011  finding,   shore more frequently and
            “They  did  not  want  to  list.   they’re   suffering,”   Wolf   less  sea  ice  uncertain,  he  there  had  been  reports   in  greater  numbers.  A  list-
            This is an anti-science, anti-  said.                     added.Older  male  wal-      from  Russia  that  three  to   ing  would  add  resources
            wildlife  administration  that   The Fish and Wildlife Service   ruses spend summers in the  ten  thousand  animals  had   to  walrus  protection  and
            denies the reality of climate   said  in  2011  that  walruses   Bering  Sea.  Females  with  been  trampled  and  died   raise  public  awareness  of
            change,  which  is  the  pri-  deserve the additional pro-  calves ride sea ice north as  on  land-based  haulouts  in   the climate change threat
            mary threat to the walrus,”   tection  of  being  declared   it  melts  in  spring  and  sum-  Russia,” he said. Since then,   and  the  need  to  reduce
            Wolf  said.  “Admitting  that   threatened, but delayed a   mer all the way through the  the  numbers  of  trampled   greenhouse gas emissions,
            the  walrus  is  threatened   listing  because  other  spe-  Bering Strait into the Chuk-  animals  have  been  in  the   Wolf said.
            by  climate  change  ac-     cies were a higher priority.   chi  Sea.  The  ice  provides  tens  to  low  hundreds,  in-  Alaska’s  Republican  con-
            knowledges  that  climate    The  agency  revised  the    a  moving  platform,  giving  cluding about 100 this year   gressional   delegation
            change poses a real dan-     decision  based  on  new     walruses  a  place  to  rest  at  Point  Lay  in  northwest   hailed the decision.
            ger to people and wildlife,   information,  said  Patrick   and  nurse,  and  protection  Alaska, he said.          “I  welcome  this  action  by
            and they don’t want to do    Lemons, the agency’s ma-     from predators.              Walruses  also  have  shown   the USFWS, a decision that
            that.”                       rine  mammals  manage-       In the last decade, howev-   a willingness to swim great   recognizes the health and
            Walruses in the last decade   ment chief in Alaska.       er, ice in the Arctic Ocean  distances of 130 miles (210   stability  of  Alaska’s  walrus
            have  been  forced  ashore   “Walrus     demonstrated     has  melted  far  beyond  kilometers)  or  more  from     population and ignores the
            in  unprecedented  num-      much    more    ability   to   the  shallow  continental  coastal  haulouts  to  prime   extreme  political  pressures
            bers, resulting in deaths, es-  change  their  behaviors   shelf  over water too deep  foraging areas, he said.     often associated with new
                                                                      for  walruses  to  reach  the  The  Fish  and  Wildlife  Ser-  Endangered  Species  Act
                                                                      ocean  floor.  Walruses  in-  vice  used  climate  models   listings,”  Rep.  Don  Young
                                                                      stead  have  gathered  by  showing  the  Chukchi  Sea     said.
                                                                      the thousands on beaches  between northwest Alaska        Besides  Pacific  walrus,  the
                                                                      in northwestern Alaska and  and  Russia  could  be  ice-  Fish  and  Wildlife  Service
                                                                      Russia,  where  smaller  ani-  free in the summer by 2060,   found that 24 other species
                                                                      mals are vulnerable to be-   Lemons  said.  But  he  said   did not warrant protections
                                                                      ing trampled in stampedes  information  predicting  the   under  the  Endangered
              Tour to the Red Light       Lipstixaruba@outlook.com    if the herd is spooked by a  walruses’  fate  is  uncertain   Species  Act,  including  the
              District with a Private                                 polar  bear,  hunter  or  air-  beyond then, so the deci-  Northern   Rocky   Moun-
              Guide & a FREE bottle      (297) 630-5329               plane.                       sion  was  made  not  to  list   tains fisher and the boreal
              of wine...                                              In  the  last  six  years,  Lem-  the species.            toad.q
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