The future of suitable habitats of an endangered Neotropical grassland bird: A path to extinction?

Global changes increasingly worry researchers and policymakers and may have irreversible impacts on Earth's biodiversity. Similar to other phytophysiognomies, natural grasslands suffer from the effects of land use changes and rising temperatures, threatening animal and plant communities. Birds, being very sensitive to these changes, are widely studied and fundamental to understand the dynamics of ecosystems in relation to climate and land use changes.

High Seasonal Variation of Plasma Testosterone Levels for a Tropical Grassland Bird Resembles Patterns of Temperate Birds.

AbstractTestosterone (T) is a sexual hormone capable of modulating several traits in birds, including aggressiveness and reproductive behavior. Although variation in T-related traits is well-known for temperate zone birds, this variation has not been extensively studied in tropical species. The campo miner () is a threatened bird endemic to the grasslands of the South American Cerrado.

Pulmonary Arteriovenous Malformation can be Associated with Embolic Stroke of Undetermined Source (ESUS).

Unlabelled: Pulmonary arteriovenous malformations (PAVMs) are rare vascular anomalies. Alternative designations are pulmonary arteriovenous fistulae or aneurysms. Although mostly asymptomatic, PAVMs can cause respiratory symptoms due to right-to-left shunt.

Disseminated Gonococcal Infection: A Case Report of Arthritis-Dermatitis Syndrome.

The bacteremic spread of the sexually transmitted pathogen, (), results in disseminated gonococcal infection (DGI), which can lead to a variety of clinical signs and symptoms, such as multiple skin lesions, tenosynovitis and arthralgias/arthritis. The Centers for Disease Control and Prevention listed that drug-resistant (cephalosporin resistance) poses an urgent threat due to antimicrobial resistance. The authors describe the case of a young woman presenting in the emergency department (ED) with skin lesions and malaise.

Update on the approach to smoking in patients with respiratory diseases.

Smoking is the leading cause of respiratory disease (RD). The harmful effects of smoking on the respiratory system begin in utero and influence immune responses throughout childhood and adult life. In comparison with "healthy" smokers, smokers with RD have peculiarities that can impede smoking cessation, such as a higher level of nicotine dependence; nicotine withdrawal; higher levels of exhaled carbon monoxide; low motivation and low self-efficacy; greater concern about weight gain; and a high prevalence of anxiety and depression.

Soil attributes drive nest-site selection by the campo miner Geositta poeciloptera.

Substrate type is a key-factor in nest-site selection and nest architecture of burrowing birds. However, little is known about which factors drive nest-site selection for these species, especially in the tropics. We studied the influence of soil attributes on nest-site selection by the campo miner Geositta poeciloptera, an open grassland bird that builds its nests within soil cavities.