English
norskBlar i forfatter "Marolla, Filippo"
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Assessing the effect of predator control on an endangered goose population subjected to predator-mediated food web dynamics
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-29)<ol> <li>Assessing the effectiveness of conservation actions to halt population declines is challenging when confounded by other factors. We assessed whether culling of red fox, a predator currently increasing in number in the sub‐Arctic, contributed to recent recovery of the critically endangered Fennoscandian population of Lesser White‐fronted Goose <i>Anser erythropus</i>, while controlling for ... -
Direct and indirect effects of environmental drivers on reindeer reproduction
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-27)The impact of climate change on the dynamics of populations has been well documented and is widespread. However, weather variability influences populations both directly and indirectly, and is mediated by species interactions. This complexity may impede proper climate impact assessments. Hence, predicting the consequences of climate change may require including processes that occur both with time ... -
End-user involvement to improve predictions and management of populations with complex dynamics and multiple drivers
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-11)Sustainable management of wildlife populations can be aided by building models that both identify current drivers of natural dynamics and provide near-term predictions of future states. We employed a Strategic Foresight Protocol (SFP) involving stakeholders to decide the purpose and structure of a dynamic state-space model for the population dynamics of the Willow Ptarmigan, a popular game species ... -
Food web approach for managing Arctic wildlife populations in an era of rapid environmental change
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-28)Scientists and wildlife managers implementing adaptive monitoring and management schemes, are tasked with providing predictions of population responses to harvest and environmental changes. Such predictions are useful not only to forecast direct effects of climate, productivity, land use, or habitat degradation, but also changes in the food web, such as expanding/increasing species that are predators, ... -
Life-cycle analysis of an endangered migratory goose to assess the impact ofconservation actions on population recovery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-29)Evaluating the effectiveness of conservation actions is challenging for migratory species because a population can be impacted anywhere along its route. Conservation actions for the critically endangered Fennoscandian lesser white-fronted goose population include culling of red foxes in the breeding area and habitat improvements and reduction of illegal hunting in the non-breeding areas. One goal ... -
Understanding and forecasting population dynamics in changing arctic ecosystems
(Doctoral thesis; Doktorgradsavhandling, 2020-10-21)Rapid environmental changes are currently occurring in the Arctic because of global warming. Arctic food webs can exhibit complex dynamics because of the prevalence of tight interactions between trophic levels. Climate change impacts can therefore propagate across food webs and result in non-trivial indirect effects on arctic species and populations. In this thesis, constituted by four papers, I ...
