HOME >> BIOLOGY >> NEWS
Tropical birds have slow pace of life compared to northern species, study finds

COLUMBUS , Ohio In the steamy tropics, even the birds find the pace of life a bit more relaxed, research shows.

Tropical birds expend less energy at rest than do birds living in more northern climates, according to a study published online this week in the Proceedings of the National Academy of Sciences.

"We found that tropical birds have a slow pace of life which is reflected in how much energy they spend to stay alive," said Joseph Williams, co-author of the study and associate professor of evolution, ecology and organismal biology at Ohio State University.

"This is the first time this has been confirmed in birds."

The findings of a slower pace of life in tropical birds correspond to other aspects of the lives of tropical birds, such as their longer life and slower growth.

"Lower energy use fits with the life history of these tropical birds, which is different than those living in temperate climates," said co-author Popko Wiersma, a postdoctoral researcher at Ohio State . Tropical birds live longer, lay fewer eggs and their chicks grow slower than those of temperate birds.

The researchers traveled to Panama where they captured 69 species of tropical birds and measured their basal metabolic rate (BMR) the minimum amount of energy they expend at rest, solely to maintain their vital bodily functions. This was the largest data set ever collected of metabolic rates of tropical birds.

They compared these measurements with the BMRs of 59 species of temperate birds.

They found that tropical birds used about 18 percent less energy, as measured by BMR, when compared with temperate birds.

To further test this association, the researchers also compared BMRs in related species pairs. These were birds from the same genus or family, such as flycatchers or swallows, in which one of the pair lived its life in the tropics and one lived in temperate zones.

Even here, the tropical
'"/>

Contact: Popko Wiersma
Wiersma.6@osu.edu
614-292-3393
Ohio State University
22-May-2007


Page: 1 2 3

Related biology news :

1. Tropical insects go the distance to inform rainforest conservation
2. Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific
3. Tropical plants go with the flow ... of nitrogen
4. Tropical rainforest nutrients linked to global carbon dioxide levels
5. Tropical forest CO2 emissions tied to nutrient increases
6. Tropical forests leak nitrogen back into atmosphere, say scientists
7. Tropical fires add injury to biodiversity insult
8. Tropical dry forests receive international recognition
9. UGAs Center for Tropical and Emerging Global Diseases receives grant to train Brazilian scientists
10. Tropical birds sensitive to environmental cues that can be impacted by global warming
11. Art and music for the birds

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/21/2020)... ... August 20, 2020 , ... NDA Partners ... a Clinical Operations executive with expertise in clinical trial planning and feasibility, regulatory ... an Expert Consultant. Throughout his career, Mr. Movahhed has helped design and manage ...
(Date:8/5/2020)... ... August 05, 2020 , ... Regenative Labs has received approval ... CoreText™ and ProText™, making them the first Wharton’s jelly allografts to be assigned a ... The company’s solutions are the first Wharton’s jelly allograft product to be recognized as ...
(Date:7/18/2020)... SAN ANTONIO (PRWEB) , ... July 16, 2020 ... ... PLOS ONE that demonstrates the effectiveness of the Invictus Medical Neoasis™ active noise ... (NICU) environment. The study reported that the Neoasis™ device attenuated the alarm sounds ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... July 29, 2020 , ... eSource has long been touted as the ... the history of eSource, the reasons it did not take off as quickly as ... source, the industry is moving towards capturing data electronically for clinical trials and then ...
(Date:7/18/2020)... ... 2020 , ... “We are thrilled to deliver this new technology to the ... its kind on the market and we were pleased that the IFT jury recognized ... cultured ingredients, creating a natural way to extend the shelf life and improve the ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... is commonly used to suppress pigment formation in zebrafish embryos, maintaining optical transparency ... led by Dr MA has been using the zebrafish model to investigate the ...
(Date:7/1/2020)... ... June 29, 2020 , ... The Interlocal Purchasing System ... its membership, recently named BioFit Engineered Products an Awarded Vendor. Awarded ... ergonomic seating, cafeteria tables, book trucks and carts at discounted pricing without the ...
Breaking Biology Technology:
Cached News: