Blar i NTNU Open på forfatter "Stawski, Clare"
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A burning question: what are the risks and benefits of mammalian torpor during and after fires?
Geiser, Fritz; Stawski, Clare; Doty, Anna; Christine, Cooper; Nowack, Julia (Journal article; Peer reviewed, 2018)Although wildfires are increasing globally, available information on how mammals respond behaviourally and physiologically to fires is scant. Despite a large number of ecological studies, often examining animal diversity ... -
A physiological understanding of organismal responses to fire
Stawski, Clare; Doty, Anna (Journal article; Peer reviewed, 2019)Devastation of both natural and human habitats due to wildfires is becoming an increasingly prevalent global issue. Fire-adapted and fire-prone regions, such as California and parts of Australia, are experiencing more ... -
A shift in the thermoregulatory curve as a result of selection for high activity-related aerobic metabolism
Stawski, Clare; Koteja, Paweł; Sadowska, Edyta T (Journal article; Peer reviewed, 2017)According to the “aerobic capacity model,” endothermy in birds and mammals evolved as a result of natural selection favoring increased persistent locomotor activity, fuelled by aerobic metabolism. However, this also increased ... -
A tale of stress, reproduction, survival and climate change - Case study of the Norwegian Arctic fox (Vulpes lagopus) and measurement of glucocorticoids
Johansen, Anneli S. (Master thesis, 2020)Klimaendringer setter arktik tundra under press; klimasensitive arter som gnagere kan få syklusen sin forstyrret som et resultat. Gnagere er for de fleste arktiske kjøttetere og omnivore en viktig del av deres diet. Når ... -
Can bats sense smoke during deep torpor?
Doty, Anna; Currie, Shannon E; Stawski, Clare; Geiser, Fritz (Journal article; Peer reviewed, 2017)While torpor is a beneficial energy-saving strategy, it may incur costs if an animal is unable to respond appropriately to external stimuli, which is particularly true when it is necessary to escape from threats such as ... -
Cold-hearted bats: uncoupling of heart rate and metabolism during torpor at sub-zero temperatures
Currie, Shannon E; Stawski, Clare; Geiser, Fritz (Journal article; Peer reviewed, 2018)Many hibernating animals thermoregulate during torpor and defend their body temperature (Tb) near 0°C by an increase in metabolic rate. Above a critical temperature (Tcrit), animals usually thermoconform. We investigated ... -
Contrasting physiological responses to habitat degradation in two arboreal mammals
Stawski, Clare; Simmonds, Emily Grace (Peer reviewed; Journal article, 2021)To cope with the challenges presented by habitat degradation and loss, animals must often respond by adjusting physiological and behavioral mechanisms. Here we quantified physiological and behavioral traits, including body ... -
Cortisol measurements in female whiskered bats (Myotis mystacinus) during an extraordinarily warm and dry Norwegian summer
Hald, Håvard Angell (Master thesis, 2019)Fysiologisk stress påvirker flere aspekter av tilværelsen for dyr i det fri, spesielt evnen til vekst, reproduksjon og immunrespons. Dette fenomenet utløses av uønskede miljømessige eller sosiale forhold, og fasiliters ... -
Energetics of whiskered bats in comparison to other bats of the family Vespertilionidae
Skåra, Karoline Hansen; Bech, Claus; Fjelldal, Mari Aas; van der Kooij, Jeroen; Sørås, Rune; Stawski, Clare (Peer reviewed; Journal article, 2021)Bats inhabit a variety of climate types, ranging from tropical to temperate zones, and environmental differences may therefore affect the basal metabolic rate (BMR) of bats from different populations. In the present study, ... -
Energy management of heterothermic bats at northern latitudes: Understanding the physiological flexibility of bats and how this enables them to live in the northern edge of their distribution
Sørås, Rune (Doctoral theses at NTNU;2023:119, Doctoral thesis, 2023)Understanding how bats manage their energy budgets under different thermal conditions is an important component in understanding the limits of distribution and their ability to cope with environmental changes, such as ... -
Growing up in a changing climate: how temperature affects the development of morphological, behavioral and physiological traits of a marsupial mammal
Stawski, Clare; Geiser, Fritz (Peer reviewed; Journal article, 2020)Climate change is likely to affect many mammalian phenotypes, yet little is known whether and how phenotypic plasticity is involved in responding to thermal challenges during mammalian development. We investigated the ... -
How to quantify thermal acclimation capacity?
Einum, Sigurd; Ratikainen, Irja Ida; Wright, Jonathan; Pelabon, Christophe; Bech, Claus; Jutfelt, Fredrik; Stawski, Clare; Burton, Tim (Peer reviewed; Journal article, 2019)The capacity of organisms to acclimate will influence their ability to cope with ongoing global changes in thermal regimes. Here we highlight methodological issues associated with recent attempts to quantify variation in ... -
Physiological and behavioral responses of an arboreal mammal to smoke and charcoal-ash substrate
Nowack, Julia; Stawski, Clare; Körtner, Gerhard; Geiser, Fritz (Journal article; Peer reviewed, 2017)The recent observation that torpor plays a key role in post-fire survival has been mainly attributed to the reduced food resources after fires. However, some of these adjustments can be facilitated or amplified by environmental ... -
Physiological and ecological challenges faced by small bats in summer
Fjelldal, Mari Aas (Doctoral theses at NTNU;2023:89, Doctoral thesis, 2023)Summary of thesis: A majority of bat species are small, insectivorous and strictly nocturnal. With temporally restricted foraging opportunities, a food source that varies with weather fluctuations, and high energetic ... -
Responding to the weather: energy budgeting by a small mammal in the wild
Hume, Taylor; Geiser, Fritz; Currie, Shannon E; Körtner, Gerhard; Stawski, Clare (Journal article; Peer reviewed, 2019)Energy conservation is paramount for small mammals because of their small size, large surface area to volume ratio, and the resultant high heat loss to the environment. To survive on limited food resources and to fuel their ... -
Spatial variation in the evolutionary potential and constraints of basal metabolic rate and body mass in a wild bird
Nafstad, Ådne Messel; Rønning, Bernt; Aase, Kenneth; Ringsby, Thor Harald; Hagen, Ingerid Julie; Ranke, Peter Sjolte; Kvalnes, Thomas; Stawski, Clare; Räsänen, Katja; Sæther, Bernt-Erik; Muff, Stefanie; Jensen, Henrik (Peer reviewed; Journal article, 2023)An organism's energy budget is strongly related to resource consumption, performance, and fitness. Hence, understanding the evolution of key energetic traits, such as basal metabolic rate (BMR), in natural populations is ... -
A species-level trait dataset of bats in Europe and beyond
Froidevaux, Jérémy S. P.; Toshkova, Nia; Barbaro, Luc; Benítez-López, Ana; Kerbiriou, Christian; Le Viol, Isabelle; Pacifici, Michela; Santini, Luca; Stawski, Clare; Russo, Danilo; Dekker, Jasja; Alberdi, Antton; Amorim, Francisco; Ancillotto, Leonardo; Barré, Kévin; Bas, Yves; Cantú-Salazar, Lisette; Dechmann, Dina K. N.; Devaux, Tiphaine; Eldegard, Katrine; Fereidouni, Sasan; Furmankiewicz, Joanna; Hamidovic, Daniela; Hill, Davina L.; Ibáñez, Carlos; Julien, Jean-François; Juste, Javier; Kaňuch, Peter; Korine, Carmi; Laforge, Alexis; Legras, Gaëlle; Leroux, Camille; Lesiński, Grzegorz; Mariton, Léa; Marmet, Julie; Mata, Vanessa A.; Mifsud, Clare M.; Nistreanu, Victoria; Novella-Fernandez, Roberto; Rebelo, Hugo; Roche, Niamh; Roemer, Charlotte; Ruczyński, Ireneusz; Sørås, Rune; Uhrin, Marcel; Vella, Adriana; Voigt, Christian C.; Razgour, Orly (Peer reviewed; Journal article, 2023)Knowledge of species’ functional traits is essential for understanding biodiversity patterns, predicting the impacts of global environmental changes, and assessing the efficiency of conservation measures. Bats are major ... -
State dependence of arousal from torpor in brown long-eared bats (Plecotus auritus)
Sørås, Rune; Fjelldal, Mari Aas; Bech, Claus; van der Kooij, Jeroen; Skåra, Karoline Hansen; Eldegard, Katrine; Stawski, Clare (Peer reviewed; Journal article, 2022)To cope with periods of low food availability and unsuitable environmental conditions (e.g., short photoperiod or challenging weather), many heterothermic mammals can readily go into torpor to save energy. However, torpor ... -
The change of faecal cortisol concentration in two Norwegian bats as an effect of capturing and handling.
Hannestad, Helene (Master thesis, 2022)Glukokortikoider (GK) er ofte brukt som et mål på stress hos dyr. Om dyret er stresset over en lengre periode kan det få skadelige konsekvenser. GK konsentrasjonen er ofte målt i blodet, men i senere år har målinger fra ... -
Thermal physiology and activity in relation to reproductive status and sex in a free-ranging semelparous marsupial
Parker, Cassandra A.; Geiser, Fritz; Stawski, Clare (Journal article; Peer reviewed, 2019)In a changing climate, southern hemisphere mammals are predicted to face rising temperatures and aridity, resulting in food and water shortages, which may further challenge already constrained energetic demands. Especially ...