Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Johan Bäckman"'
Autor:
Tianhao Zhao, Wieland Heim, Raphaël Nussbaumer, Mariëlle van Toor, Guoming Zhang, Arne Andersson, Johan Bäckman, Zongzhuang Liu, Gang Song, Magnus Hellström, Jacob Roved, Yang Liu, Staffan Bensch, Bregje Wertheim, Fumin Lei, Barbara Helm
Publikováno v:
Movement Ecology, Vol 12, Iss 1, Pp 1-18 (2024)
Abstract Background Small songbirds respond and adapt to various geographical barriers during their annual migration. Global flyways reveal the diverse migration strategies in response to different geographical barriers, among which are high-elevatio
Externí odkaz:
https://doaj.org/article/bac6bc79adc0426a90e04766dcfce71a
Autor:
Pablo Macías-Torres, Thomas Alerstam, Arne Andersson, Johan Bäckman, Kasper Thorup, Anders P. Tøttrup, Sissel Sjöberg
Publikováno v:
Movement Ecology, Vol 10, Iss 1, Pp 1-13 (2022)
Abstract Background Long-distance migratory birds undergo complex annual cycles during which they must adjust their behaviour according to the needs and conditions encountered throughout the year. Yet, variation in activity throughout the entire annu
Externí odkaz:
https://doaj.org/article/9097206790654a15bdb98984b3e1a7b9
Publikováno v:
Ecology and Evolution, Vol 9, Iss 17, Pp 9511-9531 (2019)
Abstract The arctic tern Sterna paradisaea completes the longest known annual return migration on Earth, traveling between breeding sites in the northern arctic and temperate regions and survival/molt areas in the Antarctic pack‐ice zone. Salomonse
Externí odkaz:
https://doaj.org/article/d61073e828cd428facec52aa93557036
Publikováno v:
PLoS Biology, Vol 17, Iss 10, p e3000456 (2019)
Every year, billions of seasonal migrants connect continents by transporting nutrients, energy, and pathogens between distant communities and ecosystems. For animals that power their movements by endogenous energy stores, the daily energy intake rate
Externí odkaz:
https://doaj.org/article/46350f52e1824afd9b72095351fcfc9c
Autor:
Mikael T Ekvall, Giuseppe Bianco, Sara Linse, Heiner Linke, Johan Bäckman, Lars-Anders Hansson
Publikováno v:
PLoS ONE, Vol 8, Iss 11, p e78498 (2013)
Tracking techniques are vital for the understanding of the biology and ecology of organisms. While such techniques have provided important information on the movement and migration of large animals, such as mammals and birds, scientific advances in u
Externí odkaz:
https://doaj.org/article/cade52e534584c179b3bb8ffbdae53e4
Publikováno v:
PLoS ONE, Vol 5, Iss 10, p e13516 (2010)
A major problem when studying behavior and migration of small organisms is that many of the questions addressed for larger animals are not possible to formulate due to constraints on tracking smaller animals. In aquatic ecosystems, this problem is pa
Externí odkaz:
https://doaj.org/article/e94dec7346144b5c9d30526997456b96
Publikováno v:
PLoS Biology, Vol 5, Iss 8, p e197 (2007)
Flight speed is expected to increase with mass and wing loading among flying animals and aircraft for fundamental aerodynamic reasons. Assuming geometrical and dynamical similarity, cruising flight speed is predicted to vary as (body mass)(1/6) and (
Externí odkaz:
https://doaj.org/article/e2680a006f4f4abdb79f07a2306a45a7
Publikováno v:
The Journal of Experimental Biology
article-version (VoR) Version of Record
article-version (VoR) Version of Record
Avian migrants may fly at a range of altitudes, but usually concentrate near strata where a combination of flight conditions is favourable. The aerial environment can have a large impact on the performance of the migrant and is usually highly dynamic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7a67efcc52af705855080ed6354efe5
https://doi.org/10.1242/jeb.242836
https://doi.org/10.1242/jeb.242836
Publikováno v:
Ecology and Evolution, Vol 9, Iss 17, Pp 9511-9531 (2019)
Ecology and Evolution
Ecology and Evolution
The arctic tern Sterna paradisaea completes the longest known annual return migration on Earth, traveling between breeding sites in the northern arctic and temperate regions and survival/molt areas in the Antarctic pack‐ice zone. Salomonsen (1967,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e18dcc82ffe29d285161e5e0fb6dd30f
https://doi.org/10.1002/ece3.5459
https://doi.org/10.1002/ece3.5459
Publikováno v:
Journal of Ornithology. 160:1065-1076
Many flying animals, like birds feeding their young, make commuting flights between a central place and foraging areas in the surroundings. Such central place foraging (CPF) represents a special case of foraging theory. We use simple geometry and tri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ad0afa036ecb7cb2125b2512ec02e8c
https://doi.org/10.1007/s10336-019-01677-4
https://doi.org/10.1007/s10336-019-01677-4