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

Mushhrooms.word... (bez ověření)

7. February 2025 - 19:19

I think thyis is onne of the most vital informmation for me.
And i'm happy studying your article. Buut want to observation on few general things, The
web site taste is great, thee articles is in point of fact excellent : D.
Good process, cheers https://mushhrooms.wordpress.com/

https://www.was... (bez ověření)

9. February 2025 - 22:42

Hello I aam so thrilled I found ykur blog, I really found you by accident, while I waas searching on Google foor
somethinbg else, Nonetheless I am here noww andd would just like to say thank you for a incredibhle post and a all round interesting blog (I also love thee
theme/design), I don’t have time to go through itt all at
the minute but I have bookmarked it and also added your RSS feeds,
so whern I havee time I will be back to read much more,
Please do keep up the awesome b. https://www.waste-ndc.pro/community/profile/tressa79906983/

Https://Communi... (bez ověření)

3. February 2025 - 21:39

excellent publish, very informative. I'm wondering why the other experts of this sector don't notice this.
You should proceed your writing. I'm confident, you have
a great readers' base already! https://community.usa.canon.com/t5/media/gallerypage/comment-id/50220/im...

https://softwar... (bez ověření)

4. February 2025 - 14:20

At this miment I am ready to do my breakfast, after having my breakfast coming aain to read other news. https://software.codidact.com/users/85332

www.pearltrees.Com (bez ověření)

24. January 2025 - 15:03

I have read so many articles concerning the blogger lovers
but this piece of writing is actually a good piece of writing, keep it up. https://www.pearltrees.com/alexx22x/item687798691

https://menscar... (bez ověření)

24. January 2025 - 15:59

If some one wants to be updated with newest technologies therefore he must be go
to see this web page and be up to date everyday. https://menscare6.wordpress.com/

https://wakelet... (bez ověření)

24. January 2025 - 16:03

When someone writes an piece of writing he/she
keeps the thohght of a user in his/her mind tha how a user can understand it.
Therefore that's whyy this article iis amazing.

Thanks! https://wakelet.com/wake/6qDRCw6Uhgo6MtTYlZ78D

https://wakelet... (bez ověření)

24. January 2025 - 16:04

Informative article, exactly what I was looking for. https://wakelet.com/wake/5Jwgw7OxMA-0bNuqsaHzA

feedback.Bistud... (bez ověření)

3. February 2025 - 21:46

I am sure this post has touched all the internet people, itts really
really pleasant paragraph on building up new blog. https://feedback.bistudio.com/dashboard/arrange/5731/

https://www.mym... (bez ověření)

3. February 2025 - 21:42

Undeniably believe that which you said. Your favorite reason appeared to be on the internet the simplest thing to be awre of.
I say to you,I certainly get irked while people consider worries
that they juhst ddo not know about. You managed to hiit the nail
upon the top and defined outt the whole thing without having side effect ,
people could take a signal. Will probably be back to get
more. Thanks https://www.myminifactory.com/users/aviator-game

Musshrooms.Blog... (bez ověření)

7. February 2025 - 19:20

An impressive share! I've just forwarded this onto a coworker
who had been doing a little rexearch on this. And he actually bought me lunch due to the fact that I stumbled upon iit for him...
lol. So let me reword this.... Thank YOU for the meal!!
But yeah, thanks for spending time too talk about this topic here on our site. https://musshrooms.blogspot.com/2025/02/blog-post.html

Mushroomhouse.M... (bez ověření)

7. February 2025 - 19:23

Appreciate this post. Let me try it out. https://mushroomhouse.mystrikingly.com/

offcourse.co (bez ověření)

3. February 2025 - 21:48

Fabulous, what a weblogg it is! This web site presents helpful
information to us, keep it up. https://offcourse.co/users/profile/jennifer-humphries

https://willysf... (bez ověření)

3. February 2025 - 22:00

It's difficult to find well-informed people in this particular subject, however, yoou seem like you know what you're talking about!
Thanks https://willysforsale.com/author/hannahparry/

https://hanson.... (bez ověření)

3. February 2025 - 22:07

This is a topic that's close to my heart...
Many thanks! Exactly where are your contact details though? https://hanson.net/users/aviatorgamein

Sketchfab.com (bez ověření)

4. February 2025 - 13:08

I always used tto study article in news palers but now
as I am a user off net therefore from now I am using net for posts, thanks to web. https://sketchfab.com/aviatorgamecomin

outdoorproject.com (bez ověření)

4. February 2025 - 14:34

Pretty nice post. I just stumbled upon your weblog and wished tto say that I have truly enjoyed surrfing around youur blog posts.
After all I'll be subscribing to your rss feed and I hope
you write again very soon! https://www.outdoorproject.com/users/aviator-game-0

Online Pokies (bez ověření)

11. February 2025 - 12:16

My spouse and I stumbled over here by a different
web address and thougbht I should check things out.
I like what I seee so nnow i am following you. Look forward to looking over your web page repeatedly.
https://leon.bet/en-au/casino https://leon.bet/en-au/casino

Anonym (bez ověření)

3. September 2024 - 14:48

But those are stabilising and with the launch of the UK's first residential REIT
in early 2013 - notably focused on student housing - investors are
looking at this as a new type of real asset fund.

Feel free to surf to my blog post; <a href="https://ng.datingguide.com.au/?Type=lnk&DgNo=4&DestURL=https://caylak.on...消費税法 スピード</a>

Anonym (bez ověření)

3. September 2024 - 15:49

Tom continues to woo Mariette and invites her out for a drive
within the country. Sadly his roadster breaks down which later
seems is because of Victoria making an attempt to sabotage
each his motor car and possibilities with Mariette. Pop and Ma realise that
the 9-member Parish Council is cut up down the middle.

Feel free to visit my page - orix 生命 保険
- http://maps.google.to/url?q=https://essentialtraining.org/archives/153/

https://gravata... (bez ověření)

3. February 2025 - 21:40

Wonderful blog! Do you have any tips for aspiring
writers? I'm hoping to start my own site soon but I'm a little lost on everything.
Would you propose starting with a free platform like Wordpress
or go for a paid option? There are so many choices out there that I'm totally confused
.. Any recommendations? Many thanks! https://gravatar.com/passionate0e127bc096

https://niadd.c... (bez ověření)

3. February 2025 - 21:54

Hey there! Quick question that's completely off topic. Do you know how to make your site mobile friendly?

My bloog looks weird when browsing from myy iphone4. I'm trying to find a template
or plugin that might be able to resolve this issue.
If you have any suggestions, please share. Many thanks! https://niadd.com/article/1294985.html

Anonym (bez ověření)

17. October 2024 - 15:39

なお、監視カメラは色再現性があまり重視されておらず、18%グレーカードやカラーチェッカーなどは使われていないため、照明や日光などの光の影響を除いた正しい色情報を記録することはできない。一、営業主が使用人や従業員等の違反防止に必要な措置を講じなかつた場合を指している コナン の 映画 一覧 - https://www.inkitt.com/iuHtblbCjFsaDg であろうか（労働基準法第一二一条参照）。第2回は2021年3月8日放送分、第3回は2021年12月14日放送分、第4回は2022年7月31日放送分で放送された。

Anonym (bez ověření)

17. October 2024 - 17:38

今年3月のマイナス金利政策解除から7月の追加利上げまでよりも間隔が開くが、追加利上げのペースは鈍化すると見込んでいる。 3月 - フランスの大手百貨店「オ・、2014年5月より全国順次上映された。 6月24日 - 札幌証券取引所上場廃止。 02.html 2024年8月24日閲覧。 」 は月～木に 毎日新聞デジタル 2016年2月22日発行、同日閲覧。 2020年2月9日に「株式会社じぶん銀行」から商号変更した。 より遠藤のマネジメントを主としている有限会社エンズタワーに所属。

My web page ... <a href="https://lu.ma/user/usr-Iz0v3minoOAal5G">スノーフレイク 株価</a>

Https://44Mcj.m... (bez ověření)

24. January 2025 - 16:39

Can I just say what a relief to find someone who really knows what they are talking about on the net.

You actually understand how to bring a problem to light and mmake it important.

A lot more peopke really nded to read this and understand this side of your story.
I was surprised you aren't more ppular because you surely have the gift. https://44mcj.mssg.me/

https://e9l17.m... (bez ověření)

24. January 2025 - 16:42

Hey! Would yyou mind if I share your blog with my twitter group?
There's a lot of folks that I think would really enjoy our content.
Please let me know. Thank you https://e9l17.mssg.me/

https://pasteli... (bez ověření)

3. February 2025 - 21:54

I enjjoy what you guys are up too. This type of clever work and
exposure! Keep up the excellent works guys I've you
guys too my own blogroll. https://pastelink.net/zcl9ys57

Anonym (bez ověření)

17. October 2024 - 16:32

従来のサービスも一部受け付けつつ、楽天ポイントカードがついた楽天Edyカードと一部フィギュア型を含む指定したカードは、税込200円の決済あたり1楽天ポイントが後日（通常は、毎月5日から翌月4日までの決済分からポイントを算出し、直後の10日ごろに1ヶ月分まとめて加算される）付加されるようになっており、事前に、楽天のログインサイトに、該当する楽天Edy番号を登録する必要がある。楽天カードが発行するクレジットカードに付加された楽天Edyの場合は、発行時点で会員登録にひも付けされるため、改めての番号登録は不要となる。

Also visit my web-site; 経済 産業 省 個人 情報 保護
ガイドライン - https://unsplash.com/@jJKfXuWkWDuiuWZV

https://caramel... (bez ověření)

24. January 2025 - 16:00

Anonym (bez ověření)

17. October 2024 - 17:22

炎上が原因で発生することも多い。現行の自動車の中では例外を除き、軽量な車両が多い。 」などと丁寧な表現が用いられている。 "米国株式市場サマリー（2日）".長澤まさみらのグラビア＆インタビューなどを収録した公式メモリアルブック発売が決定".最終更新 2024年8月20日 (火) 13:33 （日時は個人設定で未設定ならばUTC）。 ジェイフォン東日本に商号変更。 おーぷん2ちゃんねる（おーぷんにちゃんねる）とは、日本の電子掲示板である。 『ドラゴン桜』と同じ曜日の違う放送局で時間帯が連続して放映された。 ウェブサイトやオンライン、あるいは電子メール、携帯電話、SNSなどの場で行われる。 Jackson, James「ニュージーランド労働党、ベーシックインカムの導入の政権公約化で検討入り」『BusinessNewsLine』2016年3月15日。

My webpage ... マンダム株価掲示板 - https://cookpad.com/jp/users/110688287

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.