scholarly journals Life on the edge: common slow pace of life but contrasted trajectories of alpine rock ptarmigan populations at their southern margin

2020 ◽  
Vol 2020 (2) ◽  
Author(s):  
Coline Canonne ◽  
Claude Novoa ◽  
Bertrand Muffat-Joly ◽  
Jean Resseguier ◽  
Jean-François Desmet ◽  
...  
Keyword(s):  
Rock Ptarmigan ◽  
Slow Pace ◽  
Southern Margin ◽  
Pace Of Life

scholarly journals Tropical birds have a slow pace of life

2007 ◽  
Vol 104 (22) ◽  
pp. 9340-9345 ◽  
Author(s):  
P. Wiersma ◽  
A. Munoz-Garcia ◽  
A. Walker ◽  
J. B. Williams
Keyword(s):  
Tropical Birds ◽  
Slow Pace ◽  
Pace Of Life

scholarly journals Prolonged survival out of water is linked to a slow pace of life in a self-fertilizing amphibious fish

2019 ◽  
Vol 222 (24) ◽  
pp. jeb209270 ◽  
Author(s):  
Andy J. Turko ◽  
Justine E. Doherty ◽  
Irene Yin-Liao ◽  
Kelly Levesque ◽  
Perryn Kruth ◽  
...  
Keyword(s):  
Prolonged Survival ◽  
Slow Pace ◽  
Pace Of Life

scholarly journals A ‘slow pace of life’ in Australian old-endemic passerine birds is not accompanied by low basal metabolic rates

2016 ◽  
Vol 186 (4) ◽  
pp. 503-512 ◽  
Author(s):  
Claus Bech ◽  
Mark A. Chappell ◽  
Lee B. Astheimer ◽  
Gustavo A. Londoño ◽  
William A. Buttemer
Keyword(s):  
Metabolic Rates ◽  
Passerine Birds ◽  
Slow Pace ◽  
Pace Of Life

Metabolic cost of inflammatory response of ruby-throated hummingbirds (Archilochus colubris)

2020 ◽  
pp. 175815592096243
Author(s):  
L Gerardo Herrera M ◽  
Nadia Bayram ◽  
Kenneth C Welch
Keyword(s):  
Inflammatory Response ◽  
Metabolic Rate ◽  
Saline Solution ◽  
Resting Metabolic Rate ◽  
Metabolic Cost ◽  
Skin Inflammation ◽  
High Mass ◽  
Innate Immune Responses ◽  
Slow Pace ◽  
Pace Of Life

Animals with a slow pace of life and high mass-specific metabolic rates are expected to invest less in innate immune responses. We measured skin inflammation and the resting metabolic rate (RMR) of ruby-throated hummingbirds ( Archilochus colubris) after their immune system was challenged with phytohemagglutinin (PHA) and compared with the response of birds injected a saline solution. The PHA test measures the inflammatory process, a component of the innate response. Ruby-throated hummingbirds belong to a group that is under-represented in avian immunological studies characterized by a slow pace of life and fast metabolic rate. Hummingbirds developed an inflammatory response that lasted <28 h. PHA injection produced a significant increment of RMR (up to ~13%) with respect to RMR values after the injection of the saline solution indicating that immune response involved a metabolic cost for hummingbirds. This increment lies within the range of values previously reported for birds injected PHA (5%–29%).

Slow pace of life of the Antarctic colossal squid

2010 ◽  
Vol 90 (7) ◽  
pp. 1375-1378 ◽  
Author(s):  
Rui Rosa ◽  
Brad A. Seibel
Keyword(s):  
High Speed ◽  
Cold Water ◽  
Morphological Characters ◽  
Routine Metabolic Rate ◽  
Predator Prey ◽  
Slow Pace ◽  
Large Size ◽  
Pace Of Life ◽  
Antarctic Waters ◽  
The Antarctic

The colossal squid (Mesonychoteuthis hamiltoni) is the world's largest invertebrate and its large size and some unique morphological characters have fuelled speculation that it is an aggressive top predator in the circum-Antarctic Southern Ocean. Here, we present estimates on the metabolic and energetic demands of this cold-water deep-sea giant. The estimated mass-specific routine metabolic rate for the colossal squid at 1.5°C was 0.036 µmol O2h−1g−1and the projected daily energy consumption (45.1 kcal day−1) was almost constant as a function of depth in the nearly isothermal Antarctic waters. Our findings also indicate the squid shows a slow pace of life linked with very low prey requirements (only 0.03 kg of prey per day). We argue that the colossal squid is not a voracious predator capable of high-speed predator–prey interactions. It is, rather, an ambush or sit-and-float predator that uses the hooks on its arms and tentacles to ensnare prey that unwittingly approach.

scholarly journals Small organ size contributes to the slow pace of life in tropical birds

2012 ◽  
Vol 215 (10) ◽  
pp. 1662-1669 ◽  
Author(s):  
P. Wiersma ◽  
B. Nowak ◽  
J. B. Williams
Keyword(s):  
Organ Size ◽  
Tropical Birds ◽  
Slow Pace ◽  
Pace Of Life

Implications of slow pace-of-life for nesting behavior in an armored ectotherm

2019 ◽  
Vol 73 (4) ◽  
Author(s):  
Nathan W. Byer ◽  
Brendan N. Reid ◽  
Marcus Z. Peery
Keyword(s):  
Nesting Behavior ◽  
Slow Pace ◽  
Pace Of Life
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