Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2023
Forfattere
Ellen ElverlandSammendrag
Det er ikke registrert sammendrag
Forfattere
Jorunn BørveSammendrag
Det er ikke registrert sammendrag
Forfattere
Jorunn BørveSammendrag
Det er ikke registrert sammendrag
Forfattere
Belachew Asalf TadesseSammendrag
Det er ikke registrert sammendrag
Forfattere
Belachew Asalf TadesseSammendrag
Det er ikke registrert sammendrag
Forfattere
Belachew Asalf TadesseSammendrag
Det er ikke registrert sammendrag
Forfattere
Belachew Asalf TadesseSammendrag
Det er ikke registrert sammendrag
Forfattere
Belachew Asalf TadesseSammendrag
Det er ikke registrert sammendrag
Sammendrag
Aim Current global warming is driving changes in biological assemblages by increasing the number of thermophilic species while reducing the number of cold-adapted species, leading to thermophilization of these assemblages. However, there is increasing evidence that thermophilization might not keep pace with global warming, resulting in thermal lags. Here, we quantify the magnitude of thermal lags of plant assemblages in Norway during the last century and assess how their spatio-temporal variation is related to variables associated with temperature-change velocity, topographic heterogeneity, and habitat type. Location Norway. Time period 1905–2007. Major taxa studied Vascular plants. Methods We inferred floristic temperature from 16,351 plant assemblages and calculated the floristic temperature anomaly (difference between floristic temperature and baseline temperature) and thermal lag index (difference between reconstructed floristic temperature and observed climatic temperature) from 1905 until 2007. Using generalized least squares models, we analysed how the variation in observed lags since 1980 is related to temperature-change velocity (measured as magnitude, rate of temperature change, and distance to past analogous thermal conditions), topographic heterogeneity, and habitat type (forest versus non-forest), after accounting for the baseline temperature. Results The floristic temperature anomaly increases overall during the study period. However, thermophilization falls behind temperature change, causing a constantly increasing lag for the same period. The thermal lag index increases most strongly in the period after 1980, when it is best explained by variables related to temperature-change velocity. We also find a higher lag in non-forested areas, while no relationship is detected between the degree of thermal lag and fine-scale topographic heterogeneity. Main conclusions The thermal lag of plant assemblages has increased as global warming outpaces thermophilization responses. The current lag is associated with different dimensions of temperature-change velocity at a broad landscape scale, suggesting specifically that limited migration is an important contributor to the observed lags.
Forfattere
Eva Narten HøbergSammendrag
Lammelår er et vanlig ord for helstekt lår av lam. Låret kan stekes helt med beinet i, eller man kan utbene låret og surre kjøttet sammen til en stek. Fårekjøtt fra eldre dyr enn lam kan også brukes. Lammelår spises hele året, men i Norge forbindes det spesielt med påske.