Scientists find ‘surprising’ connections between tropical forests

first_img Popular in the CommunitySponsoredSponsoredOrangutan found tortured and decapitated prompts Indonesia probeEMGIES17 Jan, 2018We will never know the full extent of what this poor Orangutan went through before he died, the same must be done to this evil perpetrator(s) they don’t deserve the air that they breathe this has truly upset me and I wonder for the future for these wonderful creatures. So called ‘Mankind’ has a lot to answer for we are the only ones ruining this world I prefer animals to humans any day of the week.What makes community ecotourism succeed? In Madagascar, location, location, locationScissors1dOther countries should also learn and try to incorporateWhy you should care about the current wave of mass extinctions (commentary)Processor1 DecAfter all, there is no infinite anything in the whole galaxy!Infinite stupidity, right here on earth.The wildlife trade threatens people and animals alike (commentary)Anchor3dUnfortunately I feel The Chinese have no compassion for any living animal. They are a cruel country that as we knowneatbeverything that moves and do not humanily kill these poor animals and insects. They have no health and safety on their markets and they then contract these diseases. Maybe its karma maybe they should look at the way they live and stop using animals for all there so called remedies. DisgustingConservationists welcome China’s wildlife trade banThobolo27 JanChina has consistently been the worlds worst, “ Face of Evil “ in regards our planets flora and fauna survival. In some ways, this is nature trying to fight back. This ban is great, but the rest of the world just cannot allow it to be temporary, because history has demonstrated that once this coronavirus passes, they will in all likelihood, simply revert to been the planets worst Ecco Terrorists. Let’s simply not allow this to happen! How and why they have been able to degrade this planets iconic species, rape the planets rivers, oceans and forests, with apparent impunity, is just mind boggling! Please no more.Probing rural poachers in Africa: Why do they poach?Carrot3dOne day I feel like animals will be more scarce, and I agree with one of my friends, they said that poaching will take over the world, but I also hope notUpset about Amazon fires last year? Focus on deforestation this year (commentary)Bullhorn4dLies and more leisSponsoredSponsoredCoke is again the biggest culprit behind plastic waste in the PhilippinesGrapes7 NovOnce again the article blames companies for the actions of individuals. It is individuals that buy these products, it is individuals that dispose of them improperly. If we want to change it, we have to change, not just create bad guys to blame.Brazilian response to Bolsonaro policies and Amazon fires growsCar4 SepThank you for this excellent report. I feel overwhelmed by the ecocidal intent of the Bolsonaro government in the name of ‘developing’ their ‘God-given’ resources.U.S. allocates first of $30M in grants for forest conservation in SumatraPlanet4dcarrot hella thick ;)Melting Arctic sea ice may be altering winds, weather at equator: studyleftylarry30 JanThe Arctic sea ice seems to be recovering this winter as per the last 10-12 years, good news.Malaysia has the world’s highest deforestation rate, reveals Google forest mapBone27 Sep, 2018Who you’re trying to fool with selective data revelation?You can’t hide the truth if you show historical deforestation for all countries, especially in Europe from 1800s to this day. WorldBank has a good wholesome data on this.Mass tree planting along India’s Cauvery River has scientists worriedSurendra Nekkanti23 JanHi Mongabay. Good effort trying to be objective in this article. I would like to give a constructive feedback which could help in clearing things up.1. It is mentioned that planting trees in village common lands will have negative affects socially and ecologically. There is no need to even have to agree or disagree with it, because, you also mentioned the fact that Cauvery Calling aims to plant trees only in the private lands of the farmers. So, plantation in the common lands doesn’t come into the picture.2.I don’t see that the ecologists are totally against this project, but just they they have some concerns, mainly in terms of what species of trees will be planted. And because there was no direct communication between the ecologists and Isha Foundation, it was not possible for them to address the concerns. As you seem to have spoken with an Isha spokesperson, if you could connect the concerned parties, it would be great, because I see that the ecologists are genuinely interested in making sure things are done the right way.May we all come together and make things happen.Rare Amazon bush dogs caught on camera in BoliviaCarrot1 Feba very good iniciative to be fallowed by the ranchers all overSponsored For a new study, researchers genetically analyzed the evolutionary relatedness of tree species that live in tropical and sub-tropical forests around the world.Their results indicate the world’s tropical forests are divided into two main “floristic regions,” one that comprises most of Africa and the Americas and another in the Indo-Pacific region.The analysis also indicates dry tropical forests around the world – from Madagascar and India to Africa and South America – are unexpectedly similar to one another.The findings go against traditional assumptions about the relationships between tropical forests, and the researchers believe they could aid the development of more region-appropriate responses to climate change. Although they may lie thousands of miles apart and house different species, the world’s tropical forests may not be as different from each other as they seem to be. A new study shines light on the evolutionary relationships between tropical trees, revealing some surprising connections.For their study, an international team of several dozen researchers genetically analyzed the evolutionary relatedness of tree species that live in tropical and sub-tropical forests around the world. Their results were published today in Proceedings of the National Academy of Sciences.In line with previous research, their study found that tropical forests share a common ancestry that dates back to between 100 million to 66 million years ago. During this time, dinosaurs roamed the planet and the supercontinent of Gondwana began breaking apart.But then, sometime after 66 million years ago, tropical trees started diverging into more distinct groups. As continents drifted away from one another, oceans opened up, making it increasingly difficult for plants to spread their pollen and seeds to different landmasses. As trees became more isolated to their respective continents, they began to change into new species.The world’s tropical forests are home to a vasty array of species, like this broad-billed tody (Todus subulatus).When the researchers analyzed the more recent evolutionary relationships between tropical tree species living today, they uncovered some surprises that overturn traditional assumptions.For one, according to the analysis, the world’s tropical forests seem to be divided into two main “floristic regions,” one that comprises most of Africa and the Americas and another in the Indo-Pacific region. The researchers write that despite now being around 1,800 miles (2,900 kilometers) apart, plants may have been able to disperse between Africa and South America over a widening Atlantic Ocean for some time after the breakup of Gondwana, thus maintaining their genetic similarity.Tropical trees in the Indo-Pacific, a region that encompasses eastern Africa and southern Asia to the islands dotting the Pacific Ocean, also appear to comprise their own group.“Given the diverse geologic history of Asia and the Indo-Pacific, it is surprising to find a similar forest type covering most of the region,” the researchers write. They say this might be due to exchanges of plants and animals that happened starting around 45 million years ago between Southeast Asia and Australia and 15 million years ago between Australia, New Guinea and the Pacific Islands.The analysis also indicates dry tropical forests around the world – from Madagascar and India to Africa and South America – are unexpectedly similar to one another. The researchers aren’t sure whether this is because they have a common evolutionary origin or because climatic conditions have simply favored certain related species.The study also uncovered a distinct group of trees that live in cooler climates and higher elevations in Asia and the Americas, which the researchers called the “Subtropical floristic region.” While in Asia this group is mostly confined to the subtropical zone – a region between temperate and tropical zones – in the Americas, the scientists found several areas of forest that belong to this group extending deep into the tropics. They write that this is likely due to the cooler, mountainous climate of Central America and mountain ranges like the Andes that run from the north to the south and act as a conduit for wildlife.The researchers write that their findings “may necessitate reconsideration of established biogeographic ideas” and could help in the development of more region-appropriate responses to climate change. Climate Change, Dry Forests, Environment, Evolution, Forests, Global Warming, Habitat, Rainforests, Research, Trees, Tropical Forests, Wildlife Article published by Morgan Erickson-Davis Citation:Ferry Slik, J. W., Franklin, J., Arroyo-Rodriguez, V., Field, R., Aguilar, S., Aguirre, N., … & Avella, A. (2018). A phylogenetic classification of the world’s tropical forests. Proceedings of the National Academy of Sciences of the United States of America.FEEDBACK: Use this form to send a message to the editor of this post. 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