首次發現海豚與鼠海豚溝通

蘇格蘭的克萊德河棲息了數千隻港灣鼠海豚及一隻短吻真海豚,這隻真海豚已有14年沒與同類接觸。科學家發現牠溝通的哨聲有別於其他真海豚,反而更像港灣鼠海豚。這項發現可能表示這隻真海豚是在與其他鼠海豚溝通,有助研究不同鯨豚類之間的互動。

There are thousands of harbor porpoises and a common dolphin living in the Firth of Clyde in Scotland. This common dolphin hasnt interacted with another common dolphin in the past 14 years. Scientists discovered its whistles is unlike other of its own species, but more like a harbor porpoise. This finding suggests this common dolphin is communicating with the other porpoises, and will help scientists to learn more about communications between different cetacean species.

https://www.natgeomedia.com/science/article/content-15099.html?fbclid=IwAR1nEU23c5gXpPfxRLSdqJY4ZMw0977fMySUhlL2pPjto1OqF1TTOunCoOU

多國發現新物種

最近多國都發表發現新物種。墨西哥發現六種體型非常細小的蛙類,最小的體長只有15mm;美國發現新種馬陸及在深海的水母 ;印度有一種新的跳蛛,而澳洲亦有新的蛙類。這些新物種大多都面臨各種威脅,科學家仍需更多資源去研究牠們的重要性及如何作保育。

Many countries have discovered new species recently. Six tiny frog species have been found in Mexico and the smallest one is only around 15mm long. New species of millipede and a deep-sea jellyfish were discovered in the US; there is also a new species of jumping spider in India and a new frog species in Australia. Many of them are facing various threats; more research and study are required to learn more about their importance and the way to protect them.

https://www.researchgate.net/publication/359245875_First_record_of_Pseudomogrus_Simon_1937_Araneae_Salticidae_from_India_with_description_of_a_new_species

https://www.sciencedaily.com/releases/2022/04/220418093957.htm

https://www.livescience.com/monterey-bay-crown-jelly

https://www.canberratimes.com.au/story/7719052/new-frog-species-already-endangered/

https://www.eurekalert.org/news-releases/950801

密集農業造成昆蟲危機

在一些熱帶地區中密集農業及氣候變化最嚴重的地方,昆蟲數量下降了 49%。農業增長對自然棲息地造成嚴重破壞,在炎熱的氣候,昆蟲依靠這些自然環境作遮蔭。 研究發現傳粉昆蟲受影響較大,在這些區域數量減少了 70%

Intensive agriculture and climate change had caused 49% decline in insect population in the most damages parts of the world, mainly tropical regions. Agricultural growth caused more damage on natural habitats, and insects rely on these natural environment to shade in hot weathers. insect pollinators appeared to be more sensitive to the expansion with 70% less in number in these damaged areas.

https://www.dailymail.co.uk/sciencetech/article-10735821/Warming-climate-intensive-agriculture-HALVED-insect-populations-parts-world.html

美國國鳥受禽流感威脅

美國的白頭海鵰受高度傳染性禽流感威脅,自二月以來至少有36隻死亡。這些白頭海鵰可能是透過食用帶有病毒的水鳥而受到感染。禽流感會令頭海鵰癲癇發作,及出現無法站立或飛行的情況。

Bald eagles are dying because of a highly contagious bird flu in USA. At least 36 of them have died since February. These infected eagles may have gotten the flu by feeding on dead or sick waterbirds with the virus. Eagles with the flu may have seizures and might not be able to stand or fly.

https://www.smithsonianmag.com/smart-news/bald-eagles-are-dying-from-bird-flu-180979940/

山火後野放極危樹蛙

在澳洲新南威爾斯州,2019-2020的山火導致極度瀕危的斑點樹蛙 (Litoria spenceri) 只餘下約10隻。經過保育團體的努力培育,80隻樹蛙最近被野放到西歐斯可國家公園。這些樹蛙是其他野生動物例如蛇類、鳥類、哺乳類等的重要食糧,牠們的蝌蚪亦會食用河裡的養份及藻類,對當地生態平衡非常重要。

There were only around 10 critically endangered spotted tree frogs In New South Wales, Australia after the wildfires in 2019-2020. with help of breeding programs, 80 spotted tree frogs were released into Kosciuszko National Park. These frogs are very important to the ecosystem; they are food for other wildlife such as snakes, birds and mammals; their tadpoles also help consume nutrients and algae in rivers and streams.

https://www.environment.nsw.gov.au/news/critically-endangered-frogs-hop-back-into-the-wild

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