Yingji Pan

Abstract Spontaneous plants, those not planted by people or remaining from before urbanization, are vital to urban biodiversity. Their distribution in urban systems is affected by seed dispersal mode and environmental factors such as natural dispersal limitation and habitat quality factors. We assessed four seed dispersal modes in 16 cities in Yunnan province, the most biodiverse province in China.

Abstract Old trees have many ecological and socio-cultural values. However, knowledge of the factors influencing their long-term persistence in human-dominated landscapes is limited. Here, using an extensive database (nearly 1.8 million individual old trees belonging to 1,580 species) from China, we identified which species were most likely to persist as old trees in human-dominated landscapes and where they were most likely to occur.

Les écosystèmes aquatiques intérieurs (rivières, lacs, zones humides) connaissent un déclin alarmant en raison de perturbations d’origine anthropique. La pollution, l’introduction d’espèces envahissantes et la destruction des habitats menacent le fonctionnement, l’intégrité et la biodiversité de ces écosystèmes, qui sont considérés comme les plus sensibles et les plus menacés de la planète.