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Papua New Guinean populations show genetic variation based on environment

May 3, 2024, By Evrim Yazgin

DNA research on Papua New Guinea’s lowlanders and highlanders shows how populations facing unique challenges have distinct genetic adaptations.

New data collected by the Papuan Past project presents whole-genome sequences from highlanders and lowlanders on Papua New Guinea (PNG). The findings are presented in a paper published in Nature Communications.

PNG has a wide range of environments despite being in a tropical region.

Its lowlands are a labyrinth of swamps, lowland forest and tall-grass savannahs. Average maximum temperatures are more than 30°C.

In the highland rainforests, night frost is common above 2,100 metres.

Humans, along with other animal and plant life, have adapted to the different environments and ecologies. But these adaptations are not well understood, and the new research shows how deep they go.

Highlanders have to contend with low oxygen due to altitude. Lowlanders are exposed to pathogens like malaria which are absent in the highlands.

“We explored the signatures of selection in newly sequenced whole genomes of 54 PNG highlanders from Mt Wilhelm (Chimbu Province) and 74 PNG lowlanders from Daru Island (Western Province),” explains project leader and corresponding author Dr François-Xavier Ricaut from the University of Toulouse, France.

“We hypothesised that the genomes of both populations have been shaped differently to mitigate the detrimental effects of their respective environments,” Ricaut adds.

“The genetic variants under selection identified in our study show associations with blood-related phenotypes,” says lead author Dr Mathilde André from Estonia’s University of Tartu.

For example, the authors found a higher red blood cell count in highlanders to help adapt to lower oxygen availability. On the other hand, lowlanders show a higher white blood cell count.

“This supports the idea that hypoxia [low oxygen] might have been the main driving force of selection that has acted on Papua New Guinean highlanders. However, specific pathogens might have shaped the genome of lowlanders through selection,” André adds.

The authors suggest an origin for the lowlanders’ adaptation outside Homo sapiens.

Denisovans are a now extinct ancient human discovered in 2010 who lived in Asia until about 30,000 years ago.

Previous research has shown that up to 4% of Papua New Guineans’ DNA is of Denisovan origin. It has also been established that Denisovan DNA likely helped in the evolution of modern Papuan immune systems.

The new study points to a genetic mutation in Denisova that impacts a specific protein structure.

“It looks like the altered protein is beneficial for the lowlanders to survive in their environment,” says co-lead of the project Dr Mayukh Mondal, also from the University of Tartu. “Although we do not know the exact cause of this selection, this mutation might help the lowlanders overcome malaria.

Sasi dan Aksi Kaum Mama Menjaga Biota Laut Papua

Raja Ampat, CNN Indonesia -- Kelompok perempuan di Kampung Kapatcol, Pulau Misool, Raja Ampat, Papua Barat Daya mengelola sasi demi menjaga alam agar tetap lestari. Generasi muda ikut meneruskan tradisi para leluhur di Bumi Cenderawasih.

Almina Kacili (63) duduk di bangku bambu. Tangannya memegang senter yang menerangi sebuah buku berisi lirik lagu. Dia diapit dua perempuan paruh baya. Empat mama lainnya berdiri merapat ke meja di hadapan Almina.

Lewat pukul sepuluh malam, mereka masih latihan bernyanyi untuk ibadah pembukaan sasi esok pagi. Paduan suara mama-mama itu memecah sunyi saat penduduk kampung sudah terlelap di tengah gelap tanpa aliran listrik. Suara jangkrik dan kodok seolah mengiringi mars "Perempuan Papua" yang mereka nyanyikan.

Pada Senin (25/3) pagi yang cerah, Yosep Weutot (62) duduk bersila tanpa baju sambil membawa noken, tas tradisional Papua dari serat kayu rotan. Tetua adat Kampung Kapatcol itu sedang menyiapkan persembahan khusus bagi leluhur untuk upacara pembukaan sasi.

Sasi merupakan tradisi adat masyarakat Papua untuk mengelola sumber daya alam di wilayah tertentu dan dalam kurun waktu yang telah disepakati bersama antara tokoh agama, tokoh adat, dan pemerintah setempat. Di Kapatcol, sasi diterapkan di laut.

Yosep membawa sesaji itu ke gereja. Isinya pinang, sirih, kapur serta rokok yang diletakkan di piring. Warga setempat menyebutnya pon fapo. Masing-masing dibelah tujuh, lalu ditutup kain merah dan putih.

Masyarakat Raja Ampat memiliki filosofi lokal dari leluhur yaitu "hutan adalah mama, laut adalah bapak, dan pesisir adalah anak". Filosofi ini mengajarkan keturunan mereka untuk melindungi alam secara keseluruhan.

Tepat pukul 07.35 WIT liturgi ibadah pembukaan sasi dimulai di Gereja Kristen Injili (GKI) Elim. Warga Kampung Kapatcol yang mayoritas memeluk Kristen pun beribadah. Sebanyak 16 perempuan duduk di bangku jemaat, 12 di antaranya mengenakan seragam bertuliskan "Kelompok Sasi".

Nama kelompok sasi ini Waifuna, yang berarti "yang diberkati Tuhan". Kelompok yang dipimpin Almina ini menjadi motor penggerak sasi laut di Kapatcol, dengan didampingi Yayasan Konservasi Alam Nusantara (YKAN).

Lonceng ketiga berbunyi. Majelis Jemaat Elim Kapatcol membakar tujuh lilin dan memandu lagu pujian. Dari atas mimbar, seorang pendeta membacakan doa pembukaan sasi.

"Hari ini, Senin tanggal 25 Maret 2024 Jemaat Elim Kapatcol bersekutu dan hendak membuka sasi laut jemaat, dengan nama Allah Bapa, Anak dan Roh Kudus hamba buka sasi laut Jemaat Elim Kapatcol di pagi ini," katanya.

Usai ibadah buka sasi, para jemaat menuruni bukit dari gereja menuju dermaga untuk mengikuti prosesi selanjutnya. Sementara anak-anak telah menunggu di ujung dermaga.

Satu per satu orang-orang menaiki sampan. Para pemuka agama berstola ungu berada dalam satu perahu. Beberapa tokoh adat Suku Matbat, suku asli Pulau Misool, membawa pon fapo di perahu berbeda.

Begitu pula kelompok perempuan Waifuna, tua maupun muda, bergegas melompat ke sampan. Anak-anak ikut pergi bersama orang tuanya. Ada pula warga yang membawa hasil kebun, peralatan masak, hingga sepiker jumbo ke perahu.

Guru-guru dan siswa di SD Negeri 20 Kapatcol tak ingin ketinggalan. Ini satu-satunya sekolah di kampung tersebut. Usai menggelar upacara bendera, mereka lalu buru-buru ikut serta kegiatan buka sasi itu.

Setelah semuanya siap, belasan perahu kemudian pergi bersama-sama. Sampan bermesin 15 PK mengantar mereka ke perairan yang berada di sebelah barat Kampung Kapatcol. Kampung yang dihuni 47 keluarga itu pun sepi seperti ditinggal penghuni.


Ritual buka sasi

Laut kehijauan tampak tenang menyambut perahu yang datang. Airnya yang jernih membuka pandangan hingga ke karang. Perairan itu berbatasan langsung dengan Laut Seram.

Yosep bersama Petuanan Adat Yohanis Hay dan Alex Mangar melarung pon fapo ke laut dari atas sampan. Ritual ini sebagai cara masyarakat meminta izin kepada penguasa wilayah agar hasil laut yang disasi melimpah.

"Tradisi Matbat setiap buka sasi buat sirih-pinang, kami bicara pada tuan tanah, minta izin dorang yang membuat hasil melimpah," kata Yosep pria bertubuh kekar dan berkulit gelap itu.

Setelah menempuh perjalanan 20 menit, mereka akhirnya menepi ke sebuah pantai yang sunyi. Para pemuka agama, tokoh adat, kelompok perempuan sasi, dan perwakilan masyarakat lalu berjalan kaki agak menanjak menuju satu titik.

Di sanalah tempat papan sasi digantung di sebuah pohon. Papan putih berukuran kira-kira 100 x 50 cm itu dicopot dari tempatnya kemudian dibawa ke perahu. Pencopotan itu menandakan bahwa sasi telah dibuka di tempat itu.

Papan tersebut bertuliskan "Wilayah ibu-ibu Kampung Kapatcol sudah sasi gereja di tengah jemaat GKI Elim Kapatcol". Di bagian bawah kiri papan tertulis "hasil yang disasi: teripang, udang, lola, dan bia garo". Di bagian kanannya tertera "Kelompok Sasi Ibu-ibu, tertanda Ketua Almina Kacili.

Di tempat itu, Yosep menyampaikan sambutan dalam bahasa Matbat. Sementara Alex Mangar menggali lubang lalu menaruh nasi putih dan kuning di atasnya.

Rombongan kemudian melanjutkan perjalanan ke titik kedua, tempat papan sasi berikutnya diletakkan. Lokasinya masih di Kampung Kapatcol. Perjalanan menggunakan sampan ditempuh tak kurang dari 15 menit.

Tiga tokoh adat segera turun dari perahu menuju batu karang. Di sana, Yosep kembali melarung pon fapo ke laut. Setelah itu, mereka berjalan kaki ke arah pantai dengan melintasi karang.

Di sana, Almina sudah menunggu bersama pemuka agama. Papan sasi kedua pun dicopot dari tiangnya. Dengan demikian, tradisi sasi di Kampung Kapatcol resmi dibuka pada hari itu setelah hampir satu tahun, sejak Mei 2023, wilayah itu ditutup karena sasi.

"Sasi itu sesuatu yang dilindungi, tempat dan biota di situ dilindungi," kata Almina.

Ia kemudian mempersilakan semua orang yang datang untuk menyelam dan mengambil biota laut. "Menyelam sudah. Ayo! Kau perahu mana?" kata Almina kepada kelompoknya.

Anak-anak usia sekolah dasar menyelam tak jauh dari tepi pantai. Para remaja, mama-mama muda dan laki-laki dewasa kembali naik perahu. Mereka menuju ke perairan yang lebih dalam untuk memanen hasil laut.

Baca halaman berikutnya: Tidak Serakah Panen Hasil Sasi


Baca artikel CNN Indonesia "Sasi dan Aksi Kaum Mama Menjaga Biota Laut Papua" selengkapnya di sini: https://www.cnnindonesia.com/gaya-hidup/20240413114636-269-1085837/sasi-dan-aksi-kaum-mama-menjaga-biota-laut-papua?fbclid=IwZXh0bgNhZW0CMTEAAR0v9lwzt1jm6cDzRirsK4pWwBTT5G9opl2BW-_C4rbAJP-4-uUVJ9yT7a4_aem_ATtgY8uGm2AuEDsdXDdhB9Kju7JdlUeLB5Cxx6PfrhA_65-eDiBYsjE_TO5pL2ZJ8tFPwRi_7tTY0dBC4_CtteOT.


Download Apps CNN Indonesia sekarang https://app.cnnindonesia.com/








End of an era: Closure of sacred Ertsberg mine leaves legacy of environmental concerns

14 March 2024
Ertsberg mine - The Ertsberg mountain of your history is now a hole and Wilson Lake - Jubi/Grasberg George A Mealey

Jayapura, Jubi – In March 1973, then President of Indonesia Soeharto, accompanied by the Governor of Irian Jaya Frans Kaisiepo and the Director of Freeport Minerals, officially inaugurated the Ertsberg mine for the first time. This mountain was excavated for copper concentrate to be exported from Nemangkawi abroad.
The mining material, in the form of concentrate, was conveyed from Nemangkawi through pipes to the Port Side harbor and transported by ships to foreign destinations for export. The Amungme people themselves refer to Ertsberg Mountain as Yelsegel-Ongopsegel because of its gleaming appearance, akin to the shining feathers of a Bird of Paradise.

“Mountain birds still exist in Nemangkawi until now because for the Amungme people, ‘Yelsegel-Ongopsegel’ or Ertsberg is a sacred place for our people since ancient times. It is believed that the spirits of our ancestors would stop there before ascending to eternal heaven,” said John Magal, Chairman of the Indigenous Peoples Organization of the Amungme Tribe (Lemasa), to Jubi in Timika, last week.

According to John Magal, when the first bore penetrated the sacred mountain, elders recounted that there was a great light emanating from Ertsberg towards the east of Nemangkawi. “They (the elders) recounted that the spirits of our ancestors had left the sacred mountain,” he said.

“The sacred mountain, by the end of 1972, had all roads built, cable cars smoothly operating, and pipeline routes well installed. In December 1972, the first 10,000 tons of Ertsberg ore were successfully shipped to Japan. The mine was operating smoothly and proudly,” wrote George A Mealey in his book titled Grasberg: Mining the richest and most remote deposit of copper and gold in the world, in the mountains of Irian Jaya, Indonesia.

Furthermore, Mealey, who is also the Mine Development Manager of Freeport, wrote that three months later, President Soeharto arrived, and with a jeep, he drove up to the “copper town” he named Tembagapura and inaugurated the mine. “Unexpectedly, he also renamed West Irian Province to Irian Jaya Province,” Mealey wrote in his book on page 106 of the 384-page book.

He acknowledged that despite growing up in Alaska, USA, to him, the mountains in Irian Jaya were the steepest mountains he has ever seen, and even more impressive is that there was copper mineralization everywhere.

At that time there were no policies regarding Environmental Impact Assessment (EIA). Freeport’s EIA was only conducted in 1997 after the Erstberg mine ended in the 1980s and closed in 1988. In practice, the Erstberg mine operated from December 1972 to 1988 until the copper concentrate dwindled and it was finally closed.

The second mine at Mount Grasberg, or what the Amungme people call Tenogoma or grassy mountain, began exporting concentrate in 1988, and since then, the first EIA was conducted in 1997.

Grasberg to underground mining

Since the Ertsberg mine began to decline from the 1980s until it closed in 1988, Freeport began digging the second mountain, Grasberg, also known as Tenogoma, for open-pit mining.

“I began describing Grasberg to financial advisors as a ‘porphyry copper-gold deposit,’ where copper and gold production could be expected, and possibly silver too. I noted that the geological structure of Grasberg resembled that of Ok Tedi, a porphyry copper-gold deposit being mined in Papua New Guinea. The Freeport team also visited there. Ok Tedi received widespread publicity at the time because of its rich surface gold capping deposit,” Mealey wrote in his book.

Thus, Mealey continued, Grasberg is referred to as a “potential porphyry deposit.” It is said that Grasberg is the world’s largest gold reserve and the third-largest copper reserve. “Grasberg is the most significant mineral reserve discovery of this century,” said George A Mealey.

Now, the Indonesian government’s downstream program has built a smelter plant in Gresik, and practically all mining minerals from the Central Papua Mountains are excavated in underground mines and transported by ship to Surabaya and Gresik.

Antara News mentions that Phase II of the Gresik Smelter is still being pursued to be completed by May 2024. The operation of the Freeport Gresik Smelter will enhance Indonesia’s downstream efforts. As a result, there is added value that the country and all aspects involved can benefit from.

Now, after the closure of the Ertsberg mine, what remains is a mountain with a hole thousands of meters high. The former excavation is now a hollowed lake named Lake Wilson. The name is given to commemorate Freeport’s 1960 expedition leader, Forbes Wilson. (*)

Colombia vows to put nature at the heart of global environmental negotiations

The environment minister Susana Muhamad says nature is a ‘pillar’ of fighting the climate crisis

The next round of global biodiversity negotiations will put nature at the heart of the international environment agenda, Colombia’s environment minister has said, as the country prepares for the Cop16 summit.

Susana Muhamad, Colombia’s environment minister, who is expected to be the Cop16 president, said the South American country would use the summit to ensure nature was a key part of the global environmental agenda in the year building up to the climate Cop30 in the Brazilian Amazon in 2025, where countries will present new plans on how they will meet the Paris agreement.

“Although the climate is affecting biodiversity, nature is an answer to the climate crisis. It is not the only answer but it is a very important pillar and we want to position it very strongly to build towards Cop30 in Brazil,” Muhamad told the Guardian.

“We need to create the momentum and the role of Cop16 is to make nature a pillar of those discussions,” she said. “I think sometimes we divide the international environmental agenda into many issues … [but] we need to concentrate. For example, saving the Amazon is a practical and tangible action. The creation of multinational marine protected areas is a tangible action that has results for the climate and biodiversity.”

Colombia’s president, Gustavo Petro, has named Cali as the host city for Cop16 in October – the first biodiversity summit since a historic UN deal was made to halt the rampant loss of biodiversity, in Montreal, Canada at the end of 2022.

Read further details here

Nearly 15% of Americans don’t believe climate change is real, study finds

Denialism highest in central and southern US, with Republican voters less likely to believe in climate science

Aliya Uteuova, The Guardian 
Wed 14 Feb 2024 18.47 GMT
Nearly 15% of Americans don’t believe climate change is real, a new study out of the University of Michigan reveals – shedding light on the highly polarized attitude toward global warming.

Additionally, denialism is highest in the central and southern US, with Republican voters found less likely to believe in climate science.

Using artificial intelligence, researchers analyzed over 7.4m tweets posted by roughly 1.3 million people on the social media platform X (previously Twitter) between 2017 and 2019. The social media posts were geocoded, and classified as “for” or “against” climate change using a large language model, a type of artificial intelligence developed by OpenAI.

“Over half of the tweets we looked at simply denied that climate change was real, that it was a hoax,” said Joshua Newell, co-author of the study and professor of environment and sustainability at the University of Michigan. “It wasn’t surprising but it was disappointing, I would hope that more and more Americans would believe in climate change and the importance of addressing it.”

Donald Trump emerged as one of the most influential figures among climate change deniers. His tweets around a cold snap in Texas in December 2017, as well as his missives rejecting the 2018 IPCC report released at the Cop24 UN conference, were some of his most engaged social media posts among climate change deniers.

“Public figures such as Trump are highly influential,” Newell said, “when they use these events to trigger disbelief in climate change among social media users.
The findings are consistent with similar studies, such as the recent survey out of Yale University which estimates that as of 2023, 16% of Americans do not believe in climate change (about 49 million people).

Acceptance and belief in global warming is most prevalent along the west and east coasts, correlating with those regions’ high rates of Democratic voters. Still, clusters of denialism exist within blue states, like in the case of Shasta county, California. There, disbelief in climate change is as high as 52%, but statewide, less than 12% of California’s population does not believe in global warming.

“It comports with my understanding that there is a small but very vocal and active minority of the public that still denies the overwhelming evidence of human-caused warming,” said Michael Mann, climatologist and geophysicist at the University of Pennsylvania, about the study.

Last week, Mann was awarded $1m in a defamation lawsuit against conservative writers who called his pioneering climate change research “fraudulent”, comparing it to the work of a convicted child molester. In his book The New Climate War, Mann argues that scientists have to rebut the misinformation and disinformation promoted on social media by bad actors, “not because we’re going to win them over, their ideological heels are dug in, but because they are infecting the entire social media space with myths, falsehoods and toxic anti-scientific sentiment”, Mann said.


Indigenous people are the world’s biggest conservationists, but they rarely get credit for it

More than 30 percent of the Earth is already conserved. Thank Indigenous people and local communities.

New estimates suggest that Indigenous peoples and local communities conserve at least a fifth of all land on Earth.
 The UN Environment Programme World Conservation Monitoring Centre/ICCA Consortium


Selandia Baru akan membantu memperkuat respons iklim Pasifik

February 11, 2024 in Pasifik

Penulis: Dominggus A Mampioper - Editor: Kristianto Galuwo

Easter Chu Shing (kiri), wakil direktur jenderal SPREP, direktur jenderal SPREP Sefanaia Nawadra, Menteri Luar Negeri Selandia Baru Winston Peters, Dr Shane Reti, Menteri Kesehatan Selandia Baru dan Menteri Masyarakat Pasifik. – Jubi/rnz

Jayapura, Jubi – Pengaturan pendanaan baru untuk memperkuat ketahanan terhadap perubahan iklim di Pasifik, telah diumumkan di Samoa.

“Menteri Luar Negeri Selandia Baru Winston Peters dan direktur jenderal Sekretariat Program Lingkungan Regional (SPREP) Sefanaia Nawadra mengumumkan pendanaan baru di kantor pusat SPREP di ibu kota Samoa, Apia,” demikian dikutip Jubi dari rnz.co.nz, Minggu (11/2/2024).

Samoa menjadi perhentian terakhir delegasi Misi Pasifik Selandia Baru yang juga mengunjungi Kepulauan Cook dan Tonga.

“Selandia Baru dengan bangga mengkonfirmasi dukungan tambahan sebesar NZ$15,2 juta selama tiga tahun, untuk membantu SPREP memperkuat peran penting yang dimainkannya dalam memberikan saran dan dukungan di Pasifik,” kata Peters.

“SPREP fokus pada pembangunan ketahanan Pasifik terhadap ancaman serius yang ditimbulkan oleh perubahan iklim, dan investasi Selandia Baru akan memastikan bahwa kita dapat terus memprioritaskan hal ini,” tambahnya.

“Ini merupakan kontribusi yang signifikan untuk mendukung upaya kolektif kita, dalam memerangi dampak dari tiga tantangan yaitu perubahan iklim, hilangnya keanekaragaman hayati, dan polusi terhadap masyarakat dan komunitas Pasifik,” kata Peters.

SPREP adalah organisasi regional yang didirikan oleh Pemerintah dan Administrasi Pasifik yang bertugas melindungi dan mengelola lingkungan dan sumber daya alam Pasifik.

Kantor pusatnya berbasis di Apia, Samoa dengan kantor SPREP lainnya di Fiji, Republik Kepulauan Marshall, dan Vanuatu.

Perubahan iklim

Selama kunjungan ke Kepulauan Cook, pemerintah Selandia Baru memberikan komitmen sebesar NZ$16,5 juta ke Kepulauan Cook untuk mengatasi dampak perubahan iklim.

Peters mengumumkan komitmen pendanaan di Rarotonga (Rabu, waktu Kepulauan Cook. “Selandia Baru mendukung Kepulauan Cook dengan pendanaan sebesar NZ$16,5 juta untuk merespons secara lebih efektif terhadap meningkatnya dampak perubahan iklim,” katanya. (*)

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