Seasonal carbon dioxide and oxygen concentrations in the dens of hibernating mammals (Sciuridae)

Abstract

Abstract-I. Weekly temperature and respiratory gas concentrations were measured in the artificial dens of Citellus parryi ablusus and Marmota broweri for 1 year.

Mouse Lung Structure and Function after Long-Term Exposure to an Atmospheric Carbon Dioxide Level Predicted by Climate Change Modeling

“…We specifically chose to expose experimental animals to a level of CO 2 that is realistic and expected to occur within current human lifetimes based on climate change models (USGCRP 2017). We also chose mice for this study because, even though they are likely more tolerant of exposure to elevated CO 2 due to their burrowing lifestyle (Studier and Baca 1968;Williams and Rausch 1973), we wanted to investigate the effects of exposure from in utero all the way to adulthood. This is only logistically possible in a species with a relatively short life span.…”

Mouse Lung Structure and Function after Long-Term Exposure to an Atmospheric Carbon Dioxide Level Predicted by Climate Change Modeling

“…We specifically chose to expose experimental animals to a level of CO 2 that is realistic and expected to occur within current human lifetimes based on climate change models (USGCRP 2017). We also chose mice for this study because, even though they are likely more tolerant of exposure to elevated CO 2 due to their burrowing lifestyle (Studier and Baca 1968;Williams and Rausch 1973), we wanted to investigate the effects of exposure from in utero all the way to adulthood. This is only logistically possible in a species with a relatively short life span.…”

The microenvironment of naked mole‐rat burrows in East Africa

“…In fact, Park's description of animals waking from a torpor‐like state matches what we see in animals who had been sleeping at the bottom of a large pile of hundreds of naked mole‐rats. Most extreme conditions, though, have been reported for hibernating species with up to 13.5% carbon dioxide and oxygen as low as 4% in Marmota monax (Williams & Rausch, ).…”

Long-term ventilatory adaptation and ventilatory response to hypoxia in plateau pika (Ochotona curzoniae): role of nNOS and dopamine

“…Pikas living on Tibetan plateaus at up to 5,000 m are also burrowing mammals. It has already been shown that the burrow atmosphere is actually different from the outside environment with a mean FI O 2 from ϳ15% to Ͻ 10% (26,29,56). Therefore, we can argue that pikas could be exposed to very low PI O 2 in their burrows because of the additive effect of HA hypoxia and special burrowing environment.…”

Mouse Lung Structure and Function after Long-Term Exposure to an Atmospheric Carbon Dioxide Level Predicted by Climate Change Modeling

“…We specifically chose to expose experimental animals to a level of CO 2 that is realistic and expected to occur within current human lifetimes based on climate change models (USGCRP 2017). We also chose mice for this study because, even though they are likely more tolerant of exposure to elevated CO 2 due to their burrowing lifestyle (Studier and Baca 1968;Williams and Rausch 1973), we wanted to investigate the effects of exposure from in utero all the way to adulthood. This is only logistically possible in a species with a relatively short life span.…”

The microenvironment of naked mole‐rat burrows in East Africa

“…In fact, Park's description of animals waking from a torpor‐like state matches what we see in animals who had been sleeping at the bottom of a large pile of hundreds of naked mole‐rats. Most extreme conditions, though, have been reported for hibernating species with up to 13.5% carbon dioxide and oxygen as low as 4% in Marmota monax (Williams & Rausch, ).…”

Long-term ventilatory adaptation and ventilatory response to hypoxia in plateau pika (Ochotona curzoniae): role of nNOS and dopamine

“…Pikas living on Tibetan plateaus at up to 5,000 m are also burrowing mammals. It has already been shown that the burrow atmosphere is actually different from the outside environment with a mean FI O 2 from ϳ15% to Ͻ 10% (26,29,56). Therefore, we can argue that pikas could be exposed to very low PI O 2 in their burrows because of the additive effect of HA hypoxia and special burrowing environment.…”

Mouse Lung Structure and Function after Long-Term Exposure to an Atmospheric Carbon Dioxide Level Predicted by Climate Change Modeling

“…We specifically chose to expose experimental animals to a level of CO 2 that is realistic and expected to occur within current human lifetimes based on climate change models (USGCRP 2017). We also chose mice for this study because, even though they are likely more tolerant of exposure to elevated CO 2 due to their burrowing lifestyle (Studier and Baca 1968;Williams and Rausch 1973), we wanted to investigate the effects of exposure from in utero all the way to adulthood. This is only logistically possible in a species with a relatively short life span.…”

The microenvironment of naked mole‐rat burrows in East Africa

“…In fact, Park's description of animals waking from a torpor‐like state matches what we see in animals who had been sleeping at the bottom of a large pile of hundreds of naked mole‐rats. Most extreme conditions, though, have been reported for hibernating species with up to 13.5% carbon dioxide and oxygen as low as 4% in Marmota monax (Williams & Rausch, ).…”

Long-term ventilatory adaptation and ventilatory response to hypoxia in plateau pika (Ochotona curzoniae): role of nNOS and dopamine

“…Pikas living on Tibetan plateaus at up to 5,000 m are also burrowing mammals. It has already been shown that the burrow atmosphere is actually different from the outside environment with a mean FI O 2 from ϳ15% to Ͻ 10% (26,29,56). Therefore, we can argue that pikas could be exposed to very low PI O 2 in their burrows because of the additive effect of HA hypoxia and special burrowing environment.…”