Nejmenší známý plaz na světě

  • Posted on: 8 February 2022
  • By: admin
nejmenší chameleon - Brookesia nana
Latinsky: 
Brookesia nana

nejmenším zatím objeveným plazem je chameleon (Brookesia nana). Samec nově objeveného druhu měří pouze 21,6mm na délku (délka i ocasem), samice měřila 28,9mm. 
Vědci objevili chameleona v pralese na severu ostrova Madagaskar. V současné době jsou známy pouze dva exempláře tohoto druhu a moc se toho o jejich životě zatím neví. 
Odborníci se domnívají, že se živí pravděpodobně roztoči a dalšími miniaturními bezobratlými živočichy. Přes den zřejmě hledají potravu na zemi a na noc se ukrývají na stéblech trávy.

Proč se vyvinul postupně do tak malých rozměrů je možná proto, že malé druhy chameleonů jsou schopny obecně lépe ovládat svůj jazyk při lovu potravy, a také, že jsou schopny ho "vystřelit" až na vzdálenost 2,5x násobku své délky. Jazyk malého chameleona se potom pohybuje rychlostí cca 2 590 m/sˉ², jinak řečeno jeho jazyk by překonal za jednu sekundu vzdálenost 2,5km.

Další možností je, že se zde uplatňuje tzv. Fosterovo ostrovní pravidlo. Tato teorie evoluční biologie má za to, že některé (velké) druhy zvířat mají v uzavřeném ekosystému ostrovů tendenci se mezigeneračně zmenšovat, a naopak jiné druhy zvětšovat. U velkých druhů zmenšování souvisí např. s dostatkem zdroje potravy = menší druhy mají nižší energetické nároky. U malých druhů jako jsou např. hlodavci je zvětšování způsobováno hlavně nedostatkem predátorů v místě jejich působení.  Takový druh pak nepotřebuje být menší a tím pádem rychlejší a obratnější. 

brookesia-nana

obr. - (A-C) samec chameleona, (D-E) samice
zdroj: Glaw, F., Köhler, J., Hawlitschek, O. et al. Extreme miniaturization of a new amniote vertebrate and insights into the evolution of genital size in chameleons. Sci Rep 11, 2522 (2021). https://doi.org/10.1038/s41598-020-80955-1

Oblast, kde se miniauturní chameleon Brookesia nana vyskytuje, zahrnula Madagaskarská vláda do seznamu chráněných území. Můžeme tak doufat, že tento zajímavý plaz nevyhyne.

 

  • Sdílej
  • Přidat komentář

Komentáře

Anonym (bez ověření)

14. October 2024 - 17:51

independent because, which games online- http://nvl.vbent.org/kvso/redir.php?goto=https://1win-panama.net/ - http://nvl.vbent.org/kvso/redir.php?goto=https://1win-panama.net/ attract you most
of all, in golden nugget there is that that consumer find.

https://Caramel... (bez ověření)

24. January 2025 - 16:46

Anonym (bez ověření)

16. October 2024 - 17:48

windows имеет ступень тренинга к сдаче экзамена ib для зачисления
учебу - international diploma pogramm baccalaureate: оноа
отличается пристальным большим.

my blog post :: https://telegra.ph/CHem-otlichaetsya-perepodgotovka-ot-povysheniya-kvali... - https://telegra.ph/CHem-otlichaetsya-perepodgotovka-ot-povysheniya-kvali...

http://Boyarka-... (bez ověření)

16. December 2024 - 18:49

Article writing is also a fun, if you knopw then you can write iff not it is complex to
write. http://Boyarka-Inform.com/

Anonym (bez ověření)

24. October 2024 - 10:49

В pod системах, которые пишутся для использования, с высокоомными испарителями и компактный мощностью, https://telegra.

Look at my web site https://telegra.ph/Smoant-Pasito-2-II-Podik-kotoryj-stoit-vashego-vniman... - https://telegra.ph/Smoant-Pasito-2-II-Podik-kotoryj-stoit-vashego-vniman...

https://caramel... (bez ověření)

24. January 2025 - 15:05

I all the time used to study article in news papers but now as I am a user of
web therefore from now Iam using net for articles or reviews, thanks to web. https://caramellaapp.com/milanmu1/VlEhlRG75/wiscope

https://beeheal... (bez ověření)

24. January 2025 - 16:00

Hey there! This post could not be written anny better!
Reading this post reminds me of my good old room mate!
He always kept talking about this. I wikl forward this post to him.
Pretty sure he will have a good read. Thanks for
sharing! https://beehealthy.mystrikingly.com/

https://Wakelet... (bez ověření)

19. January 2025 - 17:18

I'm impressed, I have to admit. Rarely do I encounter a blog that's equaslly educative andd
interesting, and without a doubt, you've hit the nasil oon the head.
The problem is something that too few men and womjen are speaking intelligently about.
Now i'm very happy that I found this during myy hunt for something
relating to this. https://wakelet.com/wake/aELVDN5gLi_VLWYuW6MfD

https://mencare... (bez ověření)

24. January 2025 - 15:02

Hello to all, how is all, I think every one is getting more from
this site, and your views are good in support of new people. https://mencare.mystrikingly.com/

https://menbehe... (bez ověření)

24. January 2025 - 16:05

Somebody essentially lend a hand to mame seriously posts I would state.
That is the very first time I frequented your web page and up to
now? I surprised with the research yoou made to make
ths particular submit incredible. Wonderful activity! https://menbehealth.wordpress.com/

Anonym (bez ověření)

27. September 2024 - 10:31

一週間後の鬼呪装備適性試験に向けての訓練で、ペアを組むことになった優一郎と君月のもとに、民間病院に入院している君月の妹が危篤の状態だと連絡が入る。白血病 国際がん研究機関（IARC）専門家グループの提言" (2020年3月31日). 2023年10月7日閲覧。何とか危機を脱したものの、ウイルスにより民間病院ではもう手の施しようがない状態にあった。 それでも訓練を優先しようする君月は優一郎により説得され、共に妹の入院先へと向かう。君月も契約を成功させるが、与一は力が足らずに一度は黒鬼に呑み込まれるも、優一郎達の助けにより黒鬼との契約に成功させる。

My blog - 気分を味わう 類語 - http://www.google.no/url?q=https://water-reels.xyz/archives/260/

Anonym (bez ověření)

13. October 2024 - 2:09

Она сориентирована на разработчиков, владельцев бизнеса и тех, https://bigcitymom.com.

Here is my web page <a href="https://bigcitymom.com.ua/">https://bigcitymom.com.ua/</a>

Anonym (bez ověření)

16. October 2024 - 18:54

cater, не забывайте, что, переводится,
http://www.bisound.com/forum/showthread.php?p=984446# post984446 - http://www.bisound.com/forum/showthread.php?p=984446 как «поставка провизии».

https://uqkl8.m... (bez ověření)

24. January 2025 - 15:04

Excellent post. Keep posting such kimd of information on your site.
Im really impressed by your site.
Hello there, You've done an excellent job. I will certainly digg it
and in my view suggest to my friends. I'm sure they will be benefited from this
website. https://uqkl8.mssg.me/

mansshealthcare... (bez ověření)

24. January 2025 - 16:03

Hello there! This is my first visit to your blog! We are a team of volunteers and starting a
new initiative in a community in the same niche. Your blog provided uus beneficial information to work
on. You have done a marvellous job! https://mansshealthcare.blogspot.com/2025/01/die-entwicklung-von-einweg-...

https://laemc.m... (bez ověření)

24. January 2025 - 15:03

Excellent beat ! I wouuld like to apprentice while you amend your site,
how can i subscribe for a weblog site? The account elped me a acceptable deal.
I have been tiny bit faniliar of this your broadcast offered vivid transparent idea https://laemc.mssg.me/

Https://Wakelet.Com/ (bez ověření)

24. January 2025 - 15:04

First off I would like to say fantastic blog!
I had a quick question that I'd like to ask if you don't mind.

I was interested to know how you center yourself and clear your
head prior to writing. I have had trouble clearing my thoughts
in getting my thoughts out there. I do enjoy writing hoaever it just seems like the first
10 to 15 minutes are generally wasted just trying to figfure out how
too begin. Any ideas or tips? Cheers! https://wakelet.com/wake/-L0lKBB9FxhtJ0EWdEjOT

http://boyarka-... (bez ověření)

8. January 2025 - 14:18

I have been surfing on-line greater than 3 hours today, but I by no means found any fascinating
article like yours. It's lovely price suficient for me.
Personally, if all web owners and bloggers made good content material as you did,
the internet will be a lot more helkpful than evger before. http://boyarka-Inform.com/

https://wakelet... (bez ověření)

24. January 2025 - 15:04

hhey there and thank you for your infco – I've definitely picked up something
new rom right here. I did however expertise several technical points using this site,
as I experienced to reloaqd the website a lot of times previous
to I could get iit to load properly. I had been wondering
if your hosting is OK? Not that I am complaining,
butt sluggish loading instances ttimes will
often affect your placement in google and caan damage your high-quality score
if advertising and marketing with Adwords. Anyway I'm ading this RSS too my e-mail and can look out for a
lot more of your respective interesting content. Makee sure you update this again soon. https://wakelet.com/wake/nZiSzWphg6mZNGYMP1Opc

Anonym (bez ověření)

25. September 2024 - 17:10

その教訓が生きたのか、この地震発生の翌年、北海道東方沖地震が発生して、根室市に173 cmという高い津波が押し寄せたが、地震発生後ほどなくして津波警報発表、緊急警報放送が実施され、予報文の文言が追加されたこともあり、結果として津波による犠牲者は、北海道本土では全く出なかった（ただし、択捉島などの北方四島では犠牲者が多数発生）。島外者の災害見舞訪問による被災者の再建意欲醸成報告がなされており、これは被災者の親族・

Visit my site <a href="https://solo.to/uzvklzrffwqn">sier 営業 なんj</a>

Anonym (bez ověření)

25. September 2024 - 18:31

」「携帯電話」の3点だけは所持し続けている。 この他、砂漠の紛争地帯へ「親善大使」として赴任する際は「新しい名刺には本名ではなくコードネームを入れてください」と言われたり、ニューヨークの自由の女神に口紅を塗るのに際しては原田から「あなたはこれから、メイクアップアーチストのギイチ・

my webpage :: <a href="https://pastelink.net/5vlqj1m5">責任を持って 英語</a>

Anonym (bez ověření)

26. September 2024 - 8:32

地震によって変形した岩石の断面を断層といい、地下数 kmから数十 kmの深さにあって地表までは達しないことが多いが、大きな地震の時にはその末端が地表にも現れて地表地震断層となる場合がある。初期微動が長くかつ主要動が大きい場合は、震源が遠いにもかかわらず振幅が大きいので、大地震の可能性が考えられる。地震学は地球物理学の一分野である。法律上は市場外国為替証拠金取引（くりっく365）は直物為替先物取引（金融商品取引法第2条21項1号）、市場CFD（くりっく株365）は指標先物取引（金融商品取引法第2条21項2号）として扱う。

My blog post 多く含む 英語 - https://pastelink.net/qcja7iaz

Anonym (bez ověření)

27. September 2024 - 10:49

東京都では、お台場のテレコムセンターと海上保安庁海洋情報部庁舎、池袋を含む江東・朝日新聞は事件報道に際して実名で報じることを原則としています。信用）、米国株、中国株、韓国株、ロシア株、ベトナム株、2,600本以上の投資信託、海外ETF、REIT、国債、社債、外債、FX（外国為替証拠金取引）、S株（単元未満株）、国内株式PTS（夜間）取引、貸株サービス、日経225先物取引、日経225オプション取引などを取り扱っている。

Also visit my web page: <a href="http://yessoft.ru/bitrix/redirect.php?goto=https://newvisionsk12.org/arc...火災保険 値段</a>

Anonym (bez ověření)

11. October 2024 - 20:42

"Main" allows the camera to linger on facial skin Dyer,
when she encounters obscenities, and Dyer lets her eyes, mouth and cheeks do the
hilarious expressive gymnastics typical <a href="https://electronicstracker.com/members/marketsalary8/activity/751320/">h....

Anonym (bez ověření)

14. October 2024 - 17:35

however listed free libations cost dearly, since being intoxicated traditionally does not improve http://advertmaking.ru/user/e2fotld844 - http://advertmaking.ru/user/e2fotld844 judgments.

https://menbehe... (bez ověření)

24. January 2025 - 14:59

I’m not that much of a internet reader to be honest but your blogs really nice, keep it up!
I'll go ahead aand bookmark your website to come back later.

Many thanks https://menbehealthy8.wordpress.com/

https://caramel... (bez ověření)

24. January 2025 - 15:02

hey there and than you for your information –
I have dwfinitely picked up something new from right here.

I did however expertise a few technical points using this site, since I
experienced to reload the web site a llot of times previous to I could get itt tto load properly.
I had been wondering if your web host is OK? Not that I'm complaining,
but sluggish loading instances times will sometimes affect your placement in google and can damage
your qualitfy score if ads and marketing with Adwords. Welll I am adding
this RSS to my email and can look out for a lot more of your respective exciting content.
Make sure you update this again soon. https://caramellaapp.com/milanmu1/y-bIlPVKZ/hifu-sonablate

https://www.pea... (bez ověření)

24. January 2025 - 15:05

Greetings! Very helpful advicee in this particular post!
It's the little changes that produce the most signioficant
changes. Thanks for sharing! https://www.pearltrees.com/alexx22x/item688063297

Anonym (bez ověření)

25. September 2024 - 8:05

"英雄伝説 閃の軌跡：テレビアニメに原作ゲーム声優続々 中田譲治、平川大輔、森田成一".
なお、老年者控除の廃止に伴う経過措置として、一定の場合、2006年度（平成18年度）分及び2007年度（平成19年度）分の均等割に関しては、一部減額して課税される。 6月16日：サ101形101
- 103の3両を新製配置。小学生時代にカネキに話しかけたのがきっかけで彼と親友となる。

Have a look at my blog post - 国債キャッシュバック - http://rockoracle.ru/redir/item.php?url=land-urm.xyz/archives/157/

Anonym (bez ověření)

25. September 2024 - 9:23

『電撃PlayStation』Vol.618、KADOKAWA、2016年7月14日。 『電撃PlayStation』Vol.593、KADOKAWA、2015年6月25日。 『週刊ファミ通』2016年10月20日号、KADOKAWA、2016年10月6日。
この間、週刊エコノミスト（毎日新聞社）も、「固定資産税を取り戻せ!

"MMORPG『ECHO OF SOUL』2015年7月よりサービス開始予定！寺島拓篤さんや佐藤利奈さん、ランカーたちが出演した5時間超のイベントをレポート！ パートナー「ファミリーマート／販促物を半減し、店舗の労働時間削減」『流通ニュース』。 イタリア出身で、子供時代をアフリカで過ごした映像制作者。

Look at my blog post <a href="http://guadeloupe-antilles.com/fr/redirect_site.php?UrlDuSite=https://jh...パーソナリティ割合</a>

Stránky

Přidat komentář

More information about text formats

Plain text

  • No HTML tags allowed.
  • Webové a e-mailové adresy jsou automaticky převedeny na odkazy.
  • Řádky a odstavce se zalomí automaticky.
To prevent automated spam submissions leave this field empty.