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Fåglars flyttningsresor mellan kontinenter har fascinerat människan sedan antiken. Nu visar en ny studie från Lund att det är två platser i arvsmassan som bestämmer om en lövsångare flyttar över Iberiska halvön till västra Afrika eller över Balkan till östra och södra Afrika. Forskare har länge vetat att det är ett medfött beteende som gör att sångfåglar flyttar i en specifik riktning mot en avläg

https://www.biologi.lu.se/artikel/gener-styr-lovsangarens-flyttrutter - 2025-10-05

Kroppsstorleken hos trollsländor varierar över jordklotet. Insekterna är större i de tempererade områdena än i tropikerna, något som beror på både temperatur och förekomsten av rovdjur, enligt en ny studie från Lunds universitet. I en global jämförelse av olika arter hos denna gamla insektsgrupp har forskarna studerat hur kroppsstorlek varierar geografiskt och mellan olika arter. De har jämfört in

https://www.biologi.lu.se/artikel/rovdjur-och-temperatur-bestammer-kroppsstorleken-hos-insekter - 2025-10-05

“Cretaceous Diatom Database: A tool for investigating early diatom evolution"Authors: Karolina Bryłka, Matt P. Ashworth, Andrew J. Alverson, Daniel J. ConleyJournal: Journal of PhycologyDOI: 10.1111/jpy.13499https://doi.org/10.1111/jpy.13499In this article we present first comprehensive database of the Cretaceous Diatoms. We combined two views: palaeontology and phylogenetic. First and foremost we

https://www.geology.lu.se/article/karolina-brylka-and-co-authors-cover-latest-volume-journal-phycology - 2025-10-05

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https://www.geology.lu.se/article/miguel-marx-analysed-soft-tissue-183-million-year-old-jurassic-plesiosaur - 2025-10-05

The world's oldest complete wooden hunting weapons are 200,000 years old, not 300,000 as previously believed. This is shown by a new dating study that Zoran Perić from the Department of Geology participated in, which has now been published in Science Advances and highlighted in international media. The discovery indicates that the spears originate from Neanderthals, deepening our understanding of

https://www.geology.lu.se/article/worlds-oldest-complete-wooden-hunting-weapons-are-younger-previously-thought-co-author-zoran-peric - 2025-10-05

Compared with other migratory birds, the common swift follows a very unusual pattern when it migrates from the breeding areas in Europe to its wintering locations south of the Sahara. This is what researchers have observed in a major eleven-year international study of the birds. “Our study is very significant for understanding how organisms, in this case the common swift, can migrate from one part

https://www.biology.lu.se/article/rare-pattern-observed-migrating-common-swifts - 2025-10-05

Professor Anders Hedenström receives SEK 22,9 million from Knut and Alice Wallenberg Foundation. Together with his colleagues Susanne Åkesson and Christoffer Johansson he will take a holistic approach to the factors that affect migratory birds and their flight from one part of the world to another. The project runs over a 5-year period. For birds, flying takes a lot of energy. Therefore, it is ext

https://www.biology.lu.se/article/sek-229-million-holistic-approach-migratory-birds - 2025-10-05

Insects have difficulties handling the higher temperatures brought on by climate change, and might risk overheating. The ability to reproduce is also strongly affected by rising temperatures, even in northern areas of the world, according to a new study from Lund University in Sweden. Insects cannot regulate their own body temperature, which is instead strongly influenced by the temperature in the

https://www.biology.lu.se/article/high-temperatures-threaten-survival-insects - 2025-10-05

Together with almost 6400 other researchers around the globe Johannes Rousk has been selected as Highly cited researcher 2020 by The Web of Science Group. Only about one per cent of the researchers within a scientific field are appointed. Johannes Rousk is proud. To be appointed is proof that your research is important and has reached out to peers who have found it useful and frequently cited you.

https://www.biology.lu.se/article/johannes-one-most-cited-researchers-world - 2025-10-05

A lot of people feed birds in the winter, but what is good for them and what is not? Andreas Nord, bird researcher at the Department of Biology in Lund knows the answer. “Fat is a lot better than crumbs from bread, pastry and buns. Fat is energy, bread is empty calories,” he says.Saffron is a popular “Christmas spice” for baking. For quite some time there have been warnings on social media about f

https://www.biology.lu.se/article/christmas-goodies-birds - 2025-10-05

The fluttery flight of butterflies has so far been somewhat of a mystery to researchers, given their unusually large and broad wings relative to their body size. Now researchers at Lund University in Sweden have studied the aerodynamics of butterflies in a wind tunnel. The results suggest that butterflies use a highly effective clap technique, therefore making use of their unique wings. This helps

https://www.biology.lu.se/article/butterfly-wing-clap-explains-mystery-flight - 2025-10-05

Researchers at Lund University in Sweden have discovered the individual traits of fungi, and how their hyphae – that is, the fungal threads that grow in soil - behave very differently as they navigate through the earth’s microscopic labyrinths. The study was performed in a lab environment, and the underground system constructed synthetically from silicone. Using a microscope, researchers were able

https://www.biology.lu.se/article/soldiers-snakes-and-marathon-runners-hidden-world-fungi - 2025-10-05

The world's largest bird, the ostrich, has problems reproducing when the temperature deviates by 5 degrees or more from the ideal temperature of 20 °C. The research, from Lund University in Sweden, is published in Nature Communications. The results show that the females lay up to 40 per cent fewer eggs if the temperature has fluctuated in the days before laying eggs. Both male and female productio

https://www.biology.lu.se/article/ostriches-challenged-temperature-fluctuations - 2025-10-05

Overfishing, hunting and intensive agriculture and forestry can sometimes contribute to plants and animals becoming endangered. New research from Lund University in Sweden and University of Toronto can now show why this leads to entire populations becoming smaller in size, as well as reproducing earlier. The study is published in the journal PNAS. Researchers from Lund and Toronto are behind the s

https://www.biology.lu.se/article/why-overfishing-leads-smaller-cod - 2025-10-05

For the first time, a research team led by Lund University in Sweden has mapped out exactly what happens when spruce bark beetles use their sense of smell to find trees and partners to reproduce with. The hope is that the results will lead to better pest control and protection of the forest in the future. The Eurasian spruce bark beetle uses its sense of smell to locate trees and partners. The odo

https://www.biology.lu.se/article/breakthrough-fight-against-spruce-bark-beetles - 2025-10-05

Long life is common among bird parents that get help with childcare. This finding comes from researchers at the universities of Lund and Oxford who reviewed data from more than 9,000 studies. Being a parent can be tough. In general, animals that care for many offspring die young, at least in species where parents are not helped by others. However, in some species things are different and parents r

https://www.biology.lu.se/article/bird-parents-receive-help-live-longer - 2025-10-05

Many species of bee are threatened by global warming, but not all. The buff-tailed bumblebee is the world’s most common bee and will likely remain that way, as researchers from Lund University have discovered that this species benefits from a warmer climate. Through research into buff-tailed bumblebees collected by amateurs and researchers over a period of 150 years, biologists and climate researc

https://www.biology.lu.se/article/warmer-climate-making-worlds-most-common-bumblebee-even-more-common - 2025-10-05

Researchers at Lund University in Sweden have investigated how the X and Y chromosomes evolve and adapt to each other within a population. The results show that breaking up coevolved sets of sex chromosomes could lead to lower survival rates among the offspring – something that could be of importance in species conservation, for example. The study is published in the journal PNAS. The results prov

https://www.biology.lu.se/article/new-study-sheds-light-how-x-and-y-chromosomes-interact - 2025-10-05

Jerker Vinterstare at Lund University has studied the crucian carp species. In his doctoral thesis, he shows that residues of antidepressant medication in the water can cause changes in fish behaviour, making them nervous and cowardly. He also shows that when predatory fish such as northern pike are in the vicinity, the crucian carp can change their body shape, eye size and colour, but also modify

https://www.biology.lu.se/article/fish-behaviour-and-appearance-affected-stress - 2025-10-05

Researchers at Lund University in Sweden have discovered that bird blood produces more heat in winter, when it is colder, than in autumn. The study is published in The FASEB Journal. The secret lies in the energy factories of cells, the mitochondria. Mammals have no mitochondria in their red blood cells, but birds do, and according to the research team from Lund and Glasgow this means that the blo

https://www.biology.lu.se/article/birds-blood-functions-heating-system-winter - 2025-10-05