Revista Natura Ciclo 14-2013

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    pjrtg dg u` dgsnuorkmkg`ta.Na`ang ms g`

    www.`jturjghas.nam.mx

    VG_IWMG_J

    Irgsnar gju dgtakcgttg :76 mc$ ?;6.66">4942+rutjc

    jsnk`j`tg

    jj

    tgxturjckvkj`j

    _VKDJJO^A_NK@

    pramanka`gs

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    Gc `ntjr bkdrjtj`tg dgmjrjnuy pasgg u`j tgxturjcgvg y rgirgsnj`tg. ^u irmucjairgng bkdrjtjnk` bjstj par >6barjs# dglj`da cj pkgc na` u`jsg`sjnk` dg sujvkdjd. Gc g`vjsg

    na` vcvucj ijnkcktj cj jpcknjnk`.

    VG_IWMG_Jtkps

    @ntjr bkdrjtj`tgpjrj gc nugrpa 466 mc

    $ ?47.66">4796+rgpugsta

    $ :;9.66">479:+

    BKD_JTJNK@K@MGDKJTJBJ^TJ VA_

    >6 barjs

    Irgsnar gjudg takcgttg :76 mc$ ?;6.66 ">;5>6+irutjc | sujvg | mjrjnuy

    Jngktg trkiskna

    narparjc ?66 mc$ ?>;.66">475:+

    rgpugsta$ :;:.66

    ">475?+

    Vucpj bkdrjtj`tgpjrj pkgr`js y

    pkgs :66 e$ :7;.66">479>+

    NWG_VA GHA^mjrjnuyGc mjrjnuy gs rgna`ankdapapucjrmg`tg par su vjcarjckmg`tknka y sus prapkgdjdgsnjcmj`tgs. Dg su iruta gs

    gxtrjda gc jngktg dg mjrjnuy#rkna g` amgej 9# qug tkg`gjnnnka`gs gmackg`tgs y dglj cjpkgc sujvg.

    Vucpj bkdrjtj`tgpjrj mj`as 57 e

    $ :47.66 ">479?+

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    GHA^

    ?:

    GHA^

    gmpjqugsK@DKYKDWJCG^

    Ljo` g` ojrrjpura vgegtjc

    > u`kdjdgs nrgmasjs

    dg :66 e njdj u`j.

    Gmpjqugs k`dkvkdujcgs.

    $ :7;.66">9952+

    Ljo` cqukda pjrjmj`as ?76 mc

    $ :96.66">4969+

    rgpugsta$ :?2.66 ">4965+

    Nuj`da utkckzjs u` pradunta dg

    Ghas# gsts jyudj`da jc pcj`gtj.

    ^jogs nj`ta1

    Vjrtknkpj dg `ugstra

    lugea pjrj g`tgrjrtg66 mc$ ::7.66">4725+

    rgpugsta$ ;?.66">4722+

    @ntjrna`ng`trjda

    j`tkirkzz :66 mc$ :>7.66

    ">49>5+

    LJOA@G^

    NA@ JNGKTG

    [ ^GMKCCJ^ DG

    mjrjnuy

    Ljo` cqukdagxiackj`tg ?66 mc

    $ :97.66">49:9+

    Ljo` cqukdapjrj gcnugrpa ?76 mc$ :46.66">49:6+rgpugsta

    $ ::?.66">49::+

    NJOGCCA

    Njogcca rgogcdg

    y na` irkzz

    ^bjmpaa >66 mc$ ::7.66

    ">4727+rgpugsta$ ;?.66">4729+

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    NWG_VA

    `utrgG BKD_JTJ CJ VKGC

    bjstj par>6 barjs

    GHA^njstjjGc roac dg cj njstjj gs gc rgy dgcj sgcvj jmjz`knj. Dg su iruta sggxtrjg u`j cgnbg ocj`nj muy `utrktkvj#qug gs u`j dg cjs prk`nkpjcgs iug`tgsdg jckmg`tjnk` dg cas pugocas dgcj rgek`. Dgokda j cjs prapkgdjdgs

    bkdrjtj`tgs dgc jntkva# cas praduntasairgng` `utrknk` y iugrzj jcj pkgc y cas njogccas.

    NWG_VA

    Oja dg cgnbgbkdrjtj`tg ?66 mc$ ??7.66">7:27+

    Vucpj bkdrjtj`tgpjrj mj`asy ujs 57 e

    $ :47.66">4?49+

    Vucpj bkdrjtj`tgpjrj pkgs 57 e$ :47.66 ">4>95+

    Vucpj dg ckmpkgzjgxiackj`tg pjrj

    pkgs 96 e$ :>;.66 ">4?47+

    Vucpj bkdrjtj`tgpjrj gc

    nugrpa 466 mc$ ?47.66">4>97+

    rgpugsta$ :;9.66

    ">4>99+

    VKGC M^

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    GHA^

    ?>

    GHA^

    NJOGCCANjogcca sgna y qugorjdkza

    @WT_KNK@

    y iugrzj

    Cgnbg na`ng`trjdjrgpjrjdarj dgpu`tjs :66 mc$ :>7.66">4?45+

    ^bjmpaa >66 mc$ ::7.66">4?4:+

    rgpugsta

    $ ;?.66">4?4?+

    Jna`dknka`jdar >66 mc$ ::7.66">4?4>+

    rgpugsta

    $ ;?.66">4?44+

    Msnjrjbkdrjtj`tg pjrjgc njogcca ?66 e$ ?:6.66">49>9+

    LJOA@G^

    gmpjqugs

    K@DKYKDWJCG^

    TGRTW_Jnrgmasj

    Ljo` g` ojrrjpura vgegtjc> u`kdjdgs nrgmasjs

    dg :66 e njdj u`j.

    Gmpjqugs k`dkvkdujcgs.

    $ :7;.66 ">992?+

    Gcjoarjda na` jngktg dgnjstjj.

    Ljo` nrgmasapjrj gc nugrpa ?76 mc

    $ :46.66 ">4?76+rgpugsta

    $ ::?.66">4?7:+

    VG_IWMG_JIrgsnar gju dgtakcgttg :76 mc$ ?;6.66">;5>:+ducng

    rgirgsnj`tg

    njstjj

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    GHA^ njnjaMuy vjcarjda par cas pugocasj`tkeuas# sus sgmkccjs eujrdj`u`j mj`tgnj prgnkasj# rknj g`amgej ;# jctjmg`tg gmackg`tg#qug airgng bkdrjtjnk`praca`ejdj j cj pkgc y jc njogcca.

    BKD_JTJNK@praca`ejdjbjstj par

    >9barjs

    Vucpj bkdrjtj`tgpjrj pkgr`js y pkgs :66 e$ :7;.66 ">4792+

    Mj`tgnj bkdrjtj`tgpjrj gc nugrpa ?66 e

    $ ?7;.66 ">4795+

    Irgsnargju dgtakcgttg :76 mc$ ?;6.66">;5?5+ducng

    dgcknjda

    njnja

    VG_IWMG_J

    NWG_VA

    g` pucpjbkdrjtj`tgpjrj mj`as

    DG^NWG@TA

    ?6'DG

    Vucpj bkdrjtj`tgpjrj mj`as 57 e">475;+

    Var26.66">4945+bgrojc

    rgirgsnj`tg

    mjtg vgrdg

    GHA^mjtg vgrdg@jtkva dgc sur dg Orjskc# gc mjtg vgrdg pasgg

    prapkgdjdgs vkearkzj`tgs y g`grekzj`tgs.

    K`spkrjdj g` gsg jntkva# @jturj Ghas

    dgsjrracc u`j irjej`nkj dg jramj irgsna

    y dkstk`eukda# qug nacanj jc bamorg g`

    sk`ta`j na` su `jturjcgzj.

    vacumg`

    na`tracjda

    BJ^TJ VA_

    ?4barjs

    Nrgmj`antur`j pjrjnjogcca :76 mc$ :97.66">49>;+

    Nrgmj pjrj

    pgk`jr :76 mc$ :>7.66

    ">49>2+

    Jna`dknka`jdar >66 mc$ ::7.66

    ">47;9+rgpugsta$ ;?.66">47;5+

    NJOGCCAYacumk`asa y sgna

    ^bjmpaa >66 mc$ ::7.66">47;4+

    rgpugsta$ ;?.66">47;7+

    Msnjrjbkdrjtj`tg pjrjnjogcca ?66 e$ ?:6.66">49>7+

    NA@

    MJ@TGNJ DG

    NJNJA

    bkdrjtj`tg

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    GHA^

    ?5

    GHA^

    LJOA@G^

    rgirgsnj`tgs">496?+: mjtg vgrdg

    : ourktk

    : mjrjnuy

    :pktj`ej

    gxiackj`tgs">4964+: ourktk

    : mjrjnuy

    : j`dkraoj

    : pktj`ej

    pramanka`gs

    nrgmasas">496>+: njnja

    : njstjj

    : j`dkraoj

    : nupuju

    dgsnug`tagspgnkjc

    Ljoa`gs g` ojrrjpura vgegtjc surtkdasNjlj na` 4 u`kdjdgs

    dg :66 e njdj u`j.

    Var2.66"?;;>>+Njlj na` > u`kdjdgsdg ;6 e njdj u`j.

    IW@TAA@G^

    VG_IWMG_J

    Naca`kj :66 mc$ :;;.66@a na`tkg`g jcnabac.

    NJOGCCA

    Tk` k` k`sbjmpaa njogccarkzjda ?76 mc

    $ ;;.66 "?5>29+rgpugsta

    $ 5;.66"?246;+

    Tk` k` k`jna`dknka`jdarnjogcca rkzjda ?76 mc$ ;;.66 "?24::+

    rgpugsta$ 5;.66"?24:6+

    njogcCa

    cksamsorkcca

    ^pcjnh*sbjmpaanjogccacksa ?76 mc

    $ ;;.66"?5>25+

    rgpugsta$ 5;.66"?5>2>+

    ^pcjnh*jna`dknka`jdarnjogccacksa ?76 mc

    $ ;;.66"?5>27+rgpugsta

    $ 5;.66"?5>2?+

    njogcCarkzjda

    tadas castkpas dgnjogcca

    Yjpt vuptsbjmpaa? g` : ?76 mc$ :6;.66"?5>24+

    rgpugsta$ 25.66"?5>2:+

    pradunta?g` :

    ogm oam`kjs

    "::2>:+irutjc

    vkorj`tgmj`zj`j

    ogm oam`kas"::2>?+bgrojc

    na`iartjocgramgra

    IW@TAA@G^

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    ^V_J[^narparjcgsIcukda y cank` sprjy :?6 mcAirgng bkdrjtjnk` bjstj par ?4 barjs y rgskstgjc jeuj y jc sudar bjstj par > barjs.

    @jturj Iatagqukcorka pratgeg

    cj sjcud dg cj pkgc pjrj nukdjr cj

    rgcjnk` `knj dg njdj k`dkvkdua

    na` gc sac bay# mjj`j y j

    ca cjrea dg tadj cj vkdj. W`j

    c`gj dg pratgntargs sacjrgs

    nampcgtj g k``avjdarj# na`

    irmucjs dg jctj pratgnnk` yg`vjsgs madgr`as. @jturj

    Iatagqukcorka. ^aca ca

    mglar dgc sac.

    V_ATGNTA_G^

    k`ij`tkcgsNa` irmucjs gxncuskvjs pjrj

    cj pkgc dgcknjdj dgc `ka y dgc ogo.

    `ugvj

    I_MWCJ^GNJDA

    rpkda

    Cank` pratgntarjpjrj ogos 76 mc$ ?:6.66 "?7;2;+_gskstg jc jeuj bjstjpar 9 barjs.

    96IV^

    Cank` pratgntarjsprjy pjrj `kas :?6 mc$ ?76.66 ">7>>9+_gskstg jc jeuj y jc sudarbjstj par 9 barjs.

    >6IV^

    Cank` pratgntarjpjrj `kas :?6 mc

    $ ?>7.66 ">7>>2+Airgng jctj pratgnnk` WYJy WYO. _gskstg jc jeuj bjstjpar 9 barjs.

    96IV^

    Cank`pratgntarj$ ?:7.66">94>5+

    >6IV^

    Cank` pratgntarj$ ?76.66">94>2+

    Icukda pratgntar

    $ ?57.66">7>>5+

    IV^96IV^

    Dgsnuorg nma gcgekr gc ijntar dg pratgnnk` sacjr jdgnujda6IV^

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    $ ?:6.66"?7;2:+

    $ :26.66"?7;2?+

    >6IV^

    HKHAI

    G__KTG

    prgvkg`g_G^GNJMKG@TA

    DG CJOKA^

    Cank`pratgntarj :?6 mcAirgng bkdrjtjnk` praca`ejdj y rgskstgjc jeuj y jc sudar bjstj par > barjs.Na`tkg`g NJA# qug jyudj j namojtkr

    gc iatag`vglgnkmkg`ta.

    NA@

    jcagvgrj

    96IV^

    Vratgntar cjokjcbkdrjtj`tg 7 e

    $ :66.66"?7;54+

    $ ?>6.66

    ">7>46+96IV^

    IATAGZWKCO_KA

    4>

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    tkps

    Na`ang ms saorg cj nrgmjprg-jcksjda55:>+

    rgpugsta$ 92.66

    ">55:?+

    Var< $5::6Dg< $ 5;.66

    ^bjmpaa>66 mc

    ">55:7+

    rgpugsta$ 92.66

    ">55:4+

    Var< $5::6

    Dg< $ 5;.66

    cj`zjmkg`ta

    , G`nugstj nuj`tktjtkvj rgjckzjdj na` :?6 vacu`tjrkjs.

    Nuj`da ccgva gcpgca sugcta mg skg`tams ckorg y sgeurj. Ca

    skg`ta par dg`tra y sgvg par iugrj.

    Var< $::2:7Dg< $ :>;.66

    HKT: sbjmpaa( : jna`dknka`jdar( : nrgmj njpkcjr"4>:?2+

    Var55?6+rgpugsta

    $ 92.66 ">55:;+Ckmpkgzj y irgsnurjpraca`ejdj.

    Jna`dknka`jdar>66 mc

    $ 5;.66">5569+rgpugsta

    $ 92.66 ">5567+^ujvkdjd ydgsg`rgda

    sk` pgsjdgz.

    NBAZWGrgeg`grjtkvaDJ

    YKD^K^^A[

    EWKDAN

    BAWGCJ

    VJ_J NJOGCCA MW[ DJJDATrjtjmkg`ta rgeg`grjtkva k`tg`skvaqug rgstjocgng cj sjcud y cj ogccgzjdgc njogcca bjstj g` das sgmj`js#dgvacvk`dacg mavkmkg`ta y vktjckdjd._gnamg`djmas gc usa jctgr`jda na`atrjs c`gjs dg @jturj Vcj`t.

    Nrgmj praca`ejdarjdg rgsuctjdas:56 mc$ :>>.66"?:>6?+

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    "?:>6:+

    Mk njogcca gs mk njrtjdg prgsg`tjnk`. Mgeustj mj`tg`grcasj`a y qug orkccg na`cuz prapkj.J@TA@GCCJ OJ^KCG# ?;

    NA@ANG AT_JC@GJ @JTW_J VCJ@T

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    7>

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    VG_IWMG_J

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    Gc mu`da dg cj pgriumgrj

    gs ijsnk`j`tg# as na`gntj

    na` rgnugrdas# mamg`tas

    y sg`tkmkg`tas. Cj gcgnnk`

    dg u`j irjej`nkj jorg cj

    paskokckdjd dg sarprg`dgr

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    u` taqug gspgnkjc j njdj

    mamg`ta.

    Vjsk`par cjsirjej`nkjs

    VG_IWMG_J

    VG_IWMG_J

    7777

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    Vgrumgs qug pravanj`sg`sjnka`gs# dgspkgrtj`sg`tkmkg`tas y pradung`gstmucas qug as rgna`gntj`na` ugstrj gsg`nkj. @jturjnrgj mjrnjs na` na`ngptaskdg`tkinjocgs qug `as jyudj` j

    gxprgsjr gmanka`gs prau`djs.@jdj sg nampjrj na` cjiarmj @jturj dg nrgjrpgriumgs.

    tgxturj

    JE_JDJOCG

    JM

    Jm xadnbj`tkccybkdrjtj`tgnarparjc ?66 e ,

    $ ?:7.66"??79;+

    Jm xadgju dg takcgttgigmg`k`j 57 mc$47;.66

    ">2524+iarjcg`vacvg`tg

    jvj`dj

    Jm gsqug`tjocsjma pastojroj :66 mc$ :?7.66">>;;?+

    Jm gsqug`tjgju dg takcgttgmjsnuck`j 57 mc$ 47;.66">2527+jmjdgrjda

    sg`sujc

    raocg

    ,pradunta a namgstkocg

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    g` cj naca`kj

    jmnbjmgea

    DG^NWG@TA

    46'DG

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    mjsjlgs :66 mc

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    Jm jmjssagju dg takcgttgmjsnuck`j 57 mc$ 47;.66">45>:+bgrojc | sg`sujc | ngdra

    Jm jmjssaljo` g` ojrrjNjlj na` ? u`kdjdgs dg

    :66 e njdj u`j

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    bumar 5igmg`k`j"?79>:+iarjc

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    ckrka dg jeuj

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    H_K^HJ

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    hrkshj lgj`s :66 mc$ >6;.66":>:?>+ducng | rgcjlj`tg | ljzm`

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    VG_IWMG_J

    7;7;

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    EWJ^

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    EWJ^

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    _GYGCJ_

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    iacbjs dgpkmg`tj":2?2>+jmjdgrjda

    rgrgsnj`tg

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    g`vacvg`tg

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    rasj

    pamjr dgntrknas">94?4+ntrkna

    g`vacvg`tg

    ckm` sknkckj`a

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    na`artjocg

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    YCYWCJ$ 42.66":7444+

    VG_IWMG_J

    9:9:

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    g` hjkjhncskna g`

    njlj

    DG^NWG@TA

    ?6'DG

    HJKJH

    Jc mavgr gc nugrpa gc bamorg

    mj`kigstj sus gmanka`gs

    y dgspkgrtj sus sg`tkdas.

    [ J TK ZW TG MWGYG1

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    hjkjh ncsknagmpjnjdj g` njlj

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    rgcjlj`tg

    ogrejmatj

    Naca`kjgmg`k`j :66 mcgmpjnjdj g` njlj4+

    ntrknj

    ijsnk`j`tg

    mj`djrk`j

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    Naca`kj dg mjtgvgrdg gju dgtakcgttg :66 mc$ >26.66">4945+bgrojc

    rgrgsnj`tg

    mjtg vgrdg

    _KTWJC

    Gju dg pjriumigmg`k`j76 mc$ >2;.66"?427>+iarjc

    sg`sujc

    mj`djrk`j

    GHA^

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    irgsnardg jj">4942+rutjc

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    jj

    irgsnardg njnja">;5?5+ducng

    dgcknjda

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    irgsnar dgnjstjj">;5>:+ducng

    rgrgsnj`tg

    njstjj

    irgsnar dgmjrjnuy">;5>6+rutjc

    sujvg

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    Gju dg takcgttgigmg`k`j :76 mc

    irgsnar dgpktj`ej prgtj">4949+iarjc

    rgrgsnj`tg

    baljs dg pktj`ej

    irgsnardg pktj`ej">4947+rutjc

    vkorj`tg

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    DG^NWG@TA

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    pramanka`gs

    irgsnar dgpktj`ej jmjrgcj

    ">;5?9+rutjc

    g`vacvg`tg

    baljs dg pktj`ej

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    9595

    Trjdknka`gsrgu`kdjs g`

    dgcknkasjs rjej`nkjs#pjrj qug pugdjssg`tkr# sarprg`dgr

    y rgejcjr.

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