2024-02-29 16:35:07动物植物
研究发现干旱助长了野火后的入侵物种

In a study recently published in the journal Ecology, University of California, Irvine scientists uncover the intricate dance between drought, wildfires and invasive species in Southern California's coastal sage scrub ecosystems.

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2024-02-29 16:35:04动物植物
科学家发现为什么成熟的水果比未成熟的水果更容易感染坏死性病原体

In a recent study published in Molecular Plant, researchers have elucidated the mechanism underlying the increased susceptibility to necrotrophs during fruit ripening and have developed a rapid strategy to improve tomato fruit resistance to necrotrophs wi

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2024-02-29 16:35:02动物植物
研究发现,解决食物难题的能力是野生鸟类创新和大脑大小的唯一预测因素

When certain species of wild birds and primates discover new ways of finding food in the wild, it can serve to measure their flexibility and intelligence.

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2024-02-29 16:35:00动物植物
大自然的声纳:科学家揭示日本鲎如何感知移动物体

Unlike most animals that rely on visual senses, bats navigate and locate prey or obstacles through echolocation. By emitting sounds and comparing them to the reflected echoes, bats can "visualize" movement in the environment. When sound waves en

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2024-02-29 16:34:57动物植物
研究揭示气候变暖加速土壤启动

A first-of-its-kind study led by researchers at the University of Oklahoma highlights a crucial biosphere feedback mechanism and its effects on releasing soil carbon into the atmosphere.

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2024-02-29 16:34:53动物植物
染色体末端的双重麻烦:新研究改变了我们对端粒生物学的理解

Half a century ago, scientists Jim Watson and Alexey Olovnikov independently realized that there was a problem with how our DNA gets copied. A quirk of linear DNA replication dictated that telomeres that protect the ends of chromosomes should have been gr

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2024-02-29 16:34:50动物植物
过度拥挤增加了树木死亡率,也许是热带森林生物多样性增加的原因

When a tree is surrounded by many similar individuals, its mortality increases, which is probably caused by specialized pathogens or herbivores. This effect occurs in forests all over the world, but is more pronounced in rare tropical tree species, which

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2024-02-29 16:34:46动物植物
非洲类人猿预计未来30年将频繁发生极端气候事件

African apes are already being exposed to climate change impacts, and will experience extreme events such as wildfires, heat waves and flooding more frequently in the next 30 years, according to a study published February 28 in the open-access journal PLO

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2024-02-29 16:34:43动物植物
严重急性呼吸系统综合征冠状病毒2型病毒如何获得球形

For centuries, coronaviruses have triggered health crises and economic challenges, with SARS-CoV-2, the coronavirus that spreads COVID-19, being a recent example. One small protein in SARS-CoV-2, the membrane protein, or M protein, is the most abundant an

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2024-02-29 16:34:40动物植物
禽流感病毒正在适应向海洋哺乳动物传播

The highly pathogenic avian influenza virus H5N1 has adapted to spread between birds and marine mammals, posing an immediate threat to wildlife conservation, according to a study from the University of California, Davis, and the National Institute of Agri

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2024-02-29 16:34:37动物植物
干燥而不死亡:追踪从苔藓到开花植物的缺水应对机制

Imagine you find the dried-up remains of a once green and lush philodendron on your bookshelf and realize you can't remember the last time you watered your houseplants. You soak the soil with water, hoping you can breathe life back into its desiccated hu

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2024-02-29 16:34:34动物植物
研究发现地球化学景观推动麝香牛繁殖成功

Researchers have studied Greenland musk oxen that have been followed for 25 years to see how their feeding habits affect their reproductive success. And it turns out that when they go to areas with more copper and selenium in the ground, they have more ca

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