November 30, 2023

A story of Butler's Pigmy Frog (Microhyla butleri) 巴氏小雨蛙

搵咗呢位小朋友足足三年,早在2020年已錄到佢哋雨後大合唱,當時我好肯定有海量嘅蛙蛙樂團包圍住我,但我竟半隻都揾唔到。利害的@tomleechunwa@samuelho 憑聲辨認到是巴氏小雨蛙,耳殘及Seeing is Believing嘅我當然一直半信半疑!

三年來造訪該地點無數次,仍然係只聞其聲不見其影! 平常心啦! 但去年手多多影蝌蚪,又比
@oryzias 發現當中有一隻巴氏幼體! 之後每次見蝌蚪都望多眼,但當刻意去搵又係唔見!

直到昨天@carlok_1邀我夜拍,眼利嘅年輕人在草堆見到一隻只有姆指甲大小(約12~14mm)的小蛙! 我瞄了一眼心想可能是常見的飾紋姫蛙幼體或溫室蟾,作為iNat curator也其實不想同一觀察資料重覆,就告訴@carlok_1你自己影吧,但見他影得認真,小蛙也乖乖未走,心念一轉就補拍了兩張! 最後再由@oryzias確認我哋首次拍到 巴氏的成蛙蛙蛙!

我呢個老seafood都不甘示弱,也幫呢位蜘蛛小達人揾到難得一見嘅開普紐蛛開餐情景! 日後再分享!
野攝就係咁好玩! 每次都唔知有乜好嘢等待你發現!

P.S. 諗深一層 ,差唔多到12月都仲見到唔少蛙類活躍,這是全球暖化影響生態的鐵証,其實都唔太值得高興!

Thank you @carlok_1 to discover this little fellow! It took me 3 years to get photo of the adult frog!
My first record was made In 2020 for I was surronded by a big symphony orchestra after summer rain. It's so weird that I couldn't see even one of them. Then @tomleechunwa and @samuelho recognized the croacking is below to Butler's Pigmy Frog. Since then, I have never met the frog. I am a "seeing is believing" type and really doubtful about the present of species. Until early this year, a tadpole of same was identified in one of the observation by @oryzias Then I tried to find another one but the effort in vein.

Until yesterday, I visited the site again with @carlok_1. The young spiderboy spotted some movement i the meadow and found a tiny frog size of thumbnail. At first I thought it was either a juvenile Ornate chorus frog (Microhyla fissipes) or a Green House frog (Eleutherodactylus planirostris). As an iNat curator, I would try to avoid duplicated observation and asked @carlok_1 to take the picture. @ carlok_1 is a passionate iNater and valued everything he found. His enthusiasm changed my mind and decided to take a few photos of this little frog. Later on I identified it as 飾紋姬蛙 (小雨蛙) Microhyla fissipes without seeing the difference. Soon @oryzias identified it's as the 巴氏小雨蛙 Butler's Pigmy Frog (Microhyla butleri)!! We found them!!!

So this is the fun ahout observing as we never know what we are going to find.

P.S. : Well, maybe I am overjoyed a little. This is nearly December and supposed to be winter time. according to lunar calendar. It may not be a good sign to find so many frogs around !!

P.S.2 : This blog post also remarked my 10th years in iNat. Thank you who ever helped and taught me so much!

The Frog - https://www.inaturalist.org/observations/192520183

ID Credit : @oryzias
Reference : https://metadata.froghome.org/page.php?namecode=380025
Check out my other observations.
Croaking : https://www.inaturalist.org/observations/56237792
Tadpole : https://www.inaturalist.org/observations/157378525

Posted on November 30, 2023 06:39 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

October 26, 2021

佐治出沒注意!

近排公仔箱某青春劇成日出現壁虎(檐蛇)George, 當中四眼哥哥阻止室友圍剿George有句經典對白 – 大家可以不愛,但請不要傷害,並告知壁虎其實係益蟲 (留意返佢地係爬蟲類, 而唔係昆蟲。)

香港常見的壁虎現已紀錄到約十種,當中蜥虎屬 (Genus Hemidactylus) 已知有五個成員,成為最大家族,壁虎幾乎無處不在,多是夜行性並常見於建築物外牆,佢地以昆蟲為食,如果你家中有隻肥肥白白的George,恭喜曬! 佢應該幫你KO唔少烏蠅及小強。同一品種蜥虎,其身體表面顏色差異頗大,要分辨最並非按顏色而係結構細節,以下係粗略簡介 :

(1) 原尾蜥虎Bowring's smooth Gecko / Oriental leaf-toed gecko (Hemidactylus bowringii) 是本港最普遍的是,入屋的多數係佢,整體皮膚及尾巴的鱗片比較細緻平滑,正如英文名所形容腳趾公像片葉子。
觀察紀錄 : https://www.inaturalist.org/observations/56047173

(2) 鋸尾蜥虎 (鋸尾蝎虎) Garnot's House Gecko / Indo-Pacific Gecko (Hemidactylus garnotii) – 跟原尾頗近似, 但尾巴兩則帶有細小鋸齒狀鱗片。
觀察紀錄 : https://www.inaturalist.org/observations/56047172

(3) 密疣蝎虎 Brooke's house gecko (Hemidactylus brookii) – 就是圖中這種,身上帶有名顯粒狀鱗片, 整條尾巴亦帶刺的。
觀察紀錄 : https://www.inaturalist.org/observations/99327074

(4) 疣尾蜥虎Spiny-tailed House Gecko (Hemidactylus frenatus) - 身上沒明顯粒狀鱗片, 但整條尾巴帶刺的。
觀察紀錄 : 本人至今還未遇上,暫時借用及參考 @justaname 的圖片及紀錄
https://www.inaturalist.org/observations/127236094

(5) 熱帶蜥虎Tropical House Gecko (Hemidactylus mabouia) –原產於南非的品種,目前只有一筆紀錄,按照辨認者所說其頭部比較大,而且背部圖案特別,我所見是從頸部到尾巴帶有五條斑紋,身體中央三條呈V型。
觀察紀錄 : https://www.inaturalist.org/observations/39933402

如有錯漏,歡迎指正

20211025 Sunnetchan

Posted on October 26, 2021 02:38 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

May 14, 2021

咪攪大欖郊野公園!!

今日睇新聞,聽某某又再提議政府要考慮發展郊野公園邊陲地帶,每次cctvb都會影下大欖轉車站一帶,呢區正正係我幾年來主要觀察範圍,儲了幾年資料,單係八鄉路週邊都發現幾百種動/植物,四季日夜都有唔同發現, 每個觀察都係有圖有真相,唔好到時做個短期揸流攤環評就講話呢區無/低生態價值! 作為一個小市民,希望以汗水換來的資料能為香港的自然生態發聲!

https://www.inaturalist.org/observations?locale=en&nelat=22.427129941649103&nelng=114.08175463488047&place_id=any&preferred_place_id=7613&subview=map&swlat=22.416220410682907&swlng=114.0547447901005&view=species&fbclid=IwAR1hIMfPmwRY5hi55FGN6vv7H8l-_H-Pst64-tXeM-FVSVa-TQdHwTZ7cdo

Posted on May 14, 2021 08:57 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

May 12, 2021

City Nature Challenge 2021

剛剛在上週完結的iNaturalist - City Nature Challenge 2021,全球有44個國家共419個城市參賽,而全香港今屆大約有1060位自然愛好者參與,在4/30-5/3 四天時間內創出上載29800筆野外紀錄佳績(去年只有17269筆),直到截數日找到及辨認出超過3500個物種(去年只有2623種),在全球城市中物種數量排名第二,僅次於南非開普敦,在亞洲城市中更是位列第一。看來疫情沒有減退大家對家對自然的熱愛,參與第四年,倒把這個視為Sport體育活動多於Competition競爭,享受著忙裡偷閒時拍下的每個物種照片,更樂見iNat平臺湧現後起之秀,你/妳們的爆炸力真係利害!! 正正現時全球急需要更多Citizen Scientists參與去為物種和保育提供更多前線數據! 而最有效的方法就係各位為最接近自己的生態系統及環境提供恆常的觀察數據,以應對全球暖化、人口持續膨脹和資源分配失衡的挑戰, 因此希望各位Keep住CNC團火,持續為香港生態/物種作紀錄! 不過參與以外, 請務必保護珍稀品種的地理位置, 以免被立心不良者有機可乘!

香港係一片自然生態寶地,希望大家珍惜。 明年繼續努力破紀錄!!

香港排名 CNC Hong Kong Observation:
https://www.inaturalist.org/projects/city-nature-challenge-2021-hong-kong

世界排名 CNC International - City Score board :
https://www.inaturalist.org/projects/city-nature-challenge-2021

活動報告 Collaborative Results :
https://citynaturechallenge.org/

All right reserved - sunnetchan 2020

Posted on May 12, 2021 01:17 PM by sunnetchan sunnetchan | 0 comments | Leave a comment

June 03, 2020

樹棲蝸牛 / 帝王巨奧斯汀蛞蝓 (Megaustenia imperator imperator)

上星期我和一位國內的陸貝愛好者(iNat Curator @kevin474)討論 樹棲蝸牛(學名Megaustenia imperator imperator)這個中文俗稱。這個物種我兩都觀察了幾年,發現牠們的習性和其他蝸牛都一樣,大部時間是在地面爬行,以腐植或動物糞便為食,偶爾喜歡向高處爬,但沒證據顯示牠們是樹棲的,我估計最初在香港的前輩們選用這個譯名是參考著名的軟體動物網MolluscaBase,在那裡有網友通稱這類陸上軟體動物為Arboreal Snail / Tree Snail,而Arboreal就是樹棲的意思,因此便俗成用下去。事實上這個物種既非樹棲,在物種分類中亦屬於半蛞蝓(Semi-slug),半蛞蝓的身體是無法像其他蝸牛物種般完全縮進殼內, 而部份物種會有皮肉包著殼的外觀。根據野外觀察,牠們似乎是越長得大,皮包殼的範圍便越少,像板栗啡色殼便顯露更多,皮多皮少看來有點像不同的物種。總而言之,現有中文俗名中稱此物種為 樹棲 或 蝸牛 皆不恰當,而在本地似乎也找不到詳細去研究和考正牠們的資料。

當我進一步搜尋網上資料,竟發現這種半蛞蝓早在百多年前已在香港被發現和紀描述,在兩廣亦有其分怖紀錄,並於1859年首次由美國軟體動物學家奧古斯塔斯•艾迪生•古爾德(Augustus Addison Gould)紀錄和命名為Vitrina imperator,後來古爾德又把同一物種命名為Megaustenia imperator,而在1904年,比利時軟體生物專家Philippe Dautzenberg再把同一物種命名為Helicarion maleficus,當時的分類為勇蝸科 (鼈甲蝸牛科) Family Helicarionidae內的勇蝸屬(Genus Helicarion),隨後更出現合併學名Helicarion imperator,在國內出版的《常見蝸牛野外識別手冊 -重慶大學出版社 /吳岷 2015》正是以Helicarion imperator發表,,並且按照科屬把物種譯作-皇勇蝸。而本港研究軟體動物學者何慧紅於1994年在HKU發表的報告中更用了學名Cryptosoma imperator(被譯成 帝王擬阿勇螺 / 帝王擬阿勇蛞蝓),雖然這學名在網上已被廣泛引用,但考證後發現Genus Cryptosoma竟然是饅頭蟹科(Calappidae)中的一個屬,因此學名應是錯誤的。

及至最近期在2011年4月發表的Ruthenica (Russian Malacological Journal 俄羅斯軟體動物期刊)Vol.21中再次敲定本種的指名學名為Megaustenia imperator imperator,並列出越南莫門島(Ba Mun Island)存在另一亞種Megaustenia imperator brunneus。基於樹棲蝸牛一名無法正確詮釋本種的科屬和生活習性,而牠們又不再歸納於勇蝸屬, 國內陸貝網友開始嘗試尋找更合適的中文譯名,當中比較合邏輯的名字是 帝王巨奧斯汀蛞蝓,可是目前似乎仍未有權威學者能為中文譯名一鎚定音。然而由於樹棲蝸牛譯名已廣泛流傳,為了便於檢索會在iNaturalist系統保留 帝王巨奧斯汀蛞蝓 和 樹棲蝸牛 兩個 繁體中文 譯名。

以上資料如有錯漏歡迎指正。也希望日後有更多香港學者詳細研究及保育本地原生陸棲軟體動物。

Megaustenia imperator imperator (Gould, 1858)
Gould, 1858: 422 (Vitrina); Mabille, 1887a: 2 (Helicarion
maleficus, t.-loc. “Tonkin”); 1887b: 74, pl. I, fig.
10-12 (Helicarion maleficus); Fischer, Dautzenberg,
1904: 3 [Helicarion (Cryptosoma)]; Dautzenberg,
Fischer, 1906: 146 (Helicarion); 1908: 171 (Helicarion).
•Type locality – “Hong Kong in ravines near
summits of hills”.
•Dimensions: H up to 16, D up to 41 mm.
•Distribution. N Vietnam (Black River valley,
Ban Hao, Trùng Khánh, Quang Uyen, Massif of Bac
Son); Hong Kong.

Reference :
http://www.ruthenica.com/documents/vol21_Schileyko_1-68.pdf

All right reserved - sunnetchan 2020


露出內殼的成年Megaustenia imperator imperator,中央部份有30mm以上


幼體


幾乎完全包裹內殼的Megaustenia imperator imperator幼體


咬食腐葉中的Megaustenia imperator imperator

P.S.

  1. 200210818 - 曾有網友拍攝到帝王巨奧斯汀蛞蝓受到蜈蚣襲擊時會分祕出泡沫驅散敵人。
Posted on June 03, 2020 03:45 AM by sunnetchan sunnetchan | 1 comment | Leave a comment

May 05, 2020

City Nature Challenge 2020

上月個人能量很低,並未能投放太多時間給CNC2020,僅能花幾小時獨自做了三佰多筆紀錄,然而在熟悉的地盆中,竟然還能為發現30多個多年來都未紀錄個的動植物種。

香港今年有462位自然愛好者無懼疫情積極參與, 為CNC2020貢獻超過17000個觀察紀錄, 暫時全球觀察量排行12, 在亞洲城市中觀察量排名中最高, 當中更包括超過2600多個物種, 位列全球第三高,如果以人均觀察到物種量更是全球之冠。然而CNC只是一個讓更多觀察者入門的BioBlitz,希望更多自然愛好者朋友除了在CNC幾日内衝紀錄外, 能把野外觀察及紀錄成為恆常活動。

事實上, 香港物種實在非常豐富, 物種的出現和更替在每日不同時段亦不盡相同, 我在起居及工作地點附近觀察多年, 間中仍然有驚喜發現!! 然而只有靠更多自然愛好者參與Citizen Science作恆常紀錄,才能為特定地點描繪出詳盡的物種多樣機性清單,累積及優化環境保育所需的數據, 恆常紀錄比政府做的短期環評更能提供全面的物種數據, 亦有助香港建立公開和全面的物種多樣性資料庫。

https://www.inaturalist.org/projects/city-nature-challenge-2020

Posted on May 05, 2020 02:34 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

April 24, 2019

City Nature Challenge 2019

大家經常把"環保"掛在口邊, 究竟環保個意義係乜? 係咪將垃圾分類買少D用少D就等同環保? 而有咩咁值得去'保'? 我用了差不多八年去尋找答案, 從一個對自然一知半解的普通市民 到今天已超過11000筆生態紀錄的業餘自然愛好者, 好簡單咁話你知, 原來只要你細心觀察, 你便會發現我地的城中唔單只係人類居所,仲存在數以千萬計的其他生物, 只不過我地生活實在太過匆促,很少會細心留意佢地的存在,又或者見到都唔知係乜,事實上隨便街邊一棵樹,就可以係一個生態系統。佢地的存亡與人類活動息息相關,絕大部物種已經生活在危險線上但唔識同你求救,要保育第一件事就係要知佢地的存在... 
仲有兩日就係 城市自然生態挑戰賽 CNC 2019, 呢個係現時全球最龐大的物種普查(Bioblitz)活動, 參加的城市要係4/26-4/29三天內期間動員所有人力物力去紀錄物種。城市於城市間 鬥人多參與、鬥多觀察數據、鬥找到及辨認到最多物種,目的係以要多些人參與城市科學Citizen Science,重新認識自己的與大自然的關係。活動歡迎任何人參與。在2018年, 香港以773參與者之力(全球第七), 上載20562筆觀察紀錄(全球第八),在比賽時間內找到及認到2640種生物(全球第三, 後來追加辨認到2900多種), 是歐美國家以外參與度最高的城市, 以人均物種觀察量計(可惜大會唔咁計)我地更是名列前茅!
對個人而言,呢個活1動勝負唔重要, 重點係比各位重新發現你的鄰居生物的機會, 而你的鄰居肯定唔只有曱甴和老鼠!!! 最簡單的參與方法就係在下載適用你手機的iNaturalist Apps 或 到訪 www.inaturalist.org 網站, 並用Facebook或email開個account ,就可以將你在該三日拍到的自然(非被困或大量栽種的) 雀鳥、昆蟲、植物、菇菌或鳥獸蟲魚上載到iNaturalist資料庫,資料要求只有三項基本條件就係圖片、時間及座標, 如果大家係用手機拍, 在拍照前開啟GPS, 咁電話會係照片上包含時間和座標資料,不需人手再輸入,非常方便!! 就算你唔知道係乜,你只需按照上載系統建議選擇最基本的分類例如鳥類、昆蟲、植物等...系統有好多好多生態專家會在該三天真人在線上幫大家辨認。期待各位參與和支持!!!
https://www.facebook.com/events/2120153251628093/

Posted on April 24, 2019 04:52 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

February 26, 2019

SIMPLE STEPS TO SAVE A TRAPPED BUG. WELCOME TO SHARE.

Simple steps to save a bee, a beetle or a moth, which is accidentally trapped in your home. 下次有昆蟲飛/爬入你屋企,可以的話放佢地一條生路, 歡迎分享!!

Posted on February 26, 2019 04:45 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

November 17, 2018

Mid-summer Symphony II – The Lantern Fly

Another poem I published in Kids First News a few months ago.

People call me Lantern Fly but I’ve no idea why!
I don’t glow or carry any battery!
All I love to do is hop from tree to tree.
And embrace my favorite long-an and ly-chee!

Someone said “Your fashion sense is lousy!”
I think they haven't seen the handsome big-nosed me!!
And just look at my technicolor wings, aren’t they pretty?
Now I have a date with the summer breeze.

A moth? Not me! My family belongs to the Cicadinea!
Please excuse me for I have to flee!
As I’m enrolled in the big symphony!
Will you stay and chirp with me?

The show goes on but I’m a little thirsty.
On this trunk is all we can drink for free!
Hey, look at that crazy creepy-crawly!
What it sips on is not nectar, but my pee!

by SunnetChan

PS :thousand thanks the magical touch from Karen Barretto and Nicola Newbay.

Posted on November 17, 2018 03:35 AM by sunnetchan sunnetchan | 0 comments | Leave a comment

July 22, 2017

Hidden iNat Function - Text checklist by the taxonomy order

Thank you Scott for teaching me this! A useful function!

http://www.inaturalist.org/observations/taxa?skip_order=true&user_id=sunnetchan

<--- Change the taxa and id name and you can get your own checklist too.

http://www.inaturalist.org/observations/taxa

This tool accepts the same URL parameters as /observations, but you must add at least one of the following parameters to use it:

place_id
Example: /observations/taxa?place_id=belgium&skip_order=true
user_id
Example: /observations/taxa?skip_order=true&user_id=1
projects
Example: /observations/taxa?projects=10&skip_order=true
on
Example: /observations/taxa?on=2012-01-01&skip_order=true
d1 and d2 (max date range 1 year)
Example: /observations/taxa?d1=2012-01-01&d2=2012-01-30&skip_order=true

Posted on July 22, 2017 04:41 AM by sunnetchan sunnetchan | 0 comments | Leave a comment