Climate adaptation begins with seeds: Lessons from dryland tree recruitment

Alexandra Urza, Whitebark Institute in California, discusses her article: Seed source climate and precipitation timing determine dryland tree recruitment in hot and dry range margins As climate change intensifies drought and reshapes precipitation patterns across western North America, many dryland forests are facing an uncertain future. Adult trees can survive harsh conditions for centuries, but…

The mechanisms driving the timing and duration of alpine meadow plant leaf senescence under climate warming and precipitation changes

Miaojun Ma. Lanzhou University, discusses his article: Warming advanced leaf senescence in alpine plants through advancing leaf emergence and increasing soil drought Background Plant autumn leaf senescence, which marks the end of photosynthesis and the growing season, as well as the onset of dormancy, is particularly critical in the plant annual cycle. Early or late…

Darwin met the Red Queen

Carlos Roberto Fonseca, Universidade Federal do Rio Grande do Norte (UFRN) in Brazil, discusses his article: The Red Queen unveils the sexual and mating strategies of flowers In 1876, Charles Darwin wrote the book “The effects of cross and self-fertilization in the vegetable kingdom” to answer a simple, but important question: if self-fertilisation is the…

Insects and non-woody plants slow down tropical forest succession

Kari Sogera Iamba, University of South Bohemia and the Institute of Entomology of the Czech Academy of Sciences, discusses his article: Insects and non-woody plants slow down tropical forest succession: A community-wide experiment in Papua New Guinea We investigated the factors driving rainforest regeneration in canopy gaps created by tree falls or selective logging. Ecological…

When trees compete: How dynamic traits help them live together

Guochun Shen and Jing Yang, East China Normal University in Shanghai, China, discuss their article: Shifts in above- and belowground trait dissimilarity under competition mediate the future impact of neighbors When we walk into a forest, it is easy to picture trees competing for light, water, and nutrients. Some seedlings race upwards and cast their…

Drought and nitrogen addition: How they jointly shape interactions among plant, arthropod, and soil nematode functional groups in temperate grasslands

Feixue Yu, Inner Mongolia University, discusses her article: Nitrogen addition weakens drought-driven coupling between plant, arthropod, and soil nematode functional groups The concurrent increase in drought and atmospheric nitrogen deposition has profoundly impacted multitrophic biodiversity and ecosystem functioning in grasslands. Nitrogen enrichment is frequently assumed to alleviate drought stress by stimulating plant growth, but this…

Asymmetric adaptation drives rapid evolution as an invasive plant expands northward

Rui Wang, Institute of Plant Protection of the Chinese Academy of Agricultural Sciences, discusses their article: Asymmetric adaptation across a core–periphery climatic gradient drives rapid phenological evolution and range expansion in an invasive plant When we think about plant invasions, we often picture species spreading quickly, competing with native plants, and causing problems for ecosystems…