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Characteristics of the breeding habitat of Endangered Kirtland's Warblers on a Canadian Military Installation
submitted by iartigo 4 minutes ago - Topic: Health
Kirtland's Warblers (Setophaga kirtlandii) are an endangered species with specialized habitat requirements, and the only documented nesting location in Canada is an Army installation. From 2007 to 2010, I compared habitat characteristics of sites occupied and not occupied by Kirtland's Warblers at Garrison Petawawa located ∼200 km northwest of Ottawa, Ontario. Sites occupied by Kirtland's War...



Migratory movements and wintering areas of Leach's Storm-Petrels tracked using geolocators
submitted by iartigo 4 minutes ago - Topic: Health
Accumulating evidence suggests that Atlantic populations of Leach's Storm-Petrels (Oceanodroma leucorhoa) are experiencing significant declines. To better understand possible causes of these declines, we used geolocators to document movements of these small (∼50-g) pelagic seabirds during migration and the non-breeding period. During 2012 and 2013, movement tracks were obtained from two birds...

Field-readable alphanumeric flags are valuable markers for shorebirds: use of double-marking to identify cases of misidentification
submitted by iartigo 4 minutes ago - Topic: Health
Implicit assumptions for most mark-recapture studies are that individuals do not lose their markers and all observed markers are correctly recorded. If these assumptions are violated, e.g., due to loss or extreme wear of markers, estimates of population size and vital rates will be biased. Double-marking experiments have been widely used to estimate rates of marker loss and adjust for associate...

Effects of urbanization on site occupancy and density of grassland birds in tallgrass prairie fragments
submitted by iartigo 4 minutes ago - Topic: Health
Tallgrass prairies are among the most threatened ecosystems in the world. Remaining prairies tend to be small and isolated and many are associated with urban and suburban landscapes. We asked how urbanization might impact the conservation value of tallgrass prairie fragments for grassland birds by comparing the densities and the probability of occurrence of Dickcissels (Spiza americana), Grassh...

Space-use strategies of wintering Ovenbirds in Belize: causes and consequences
submitted by iartigo 4 minutes ago - Topic: Health
For long-distance migrants, territoriality and prey biomass during the non-breeding season have been linked to body condition that can carry over to affect spring migration and breeding events. For Ovenbirds (Seiurus aurocapilla), studies in Jamaica showed that body condition in mid-season depended on leaf litter prey biomass and declined seasonally as conditions became drier, and that individu...



Variation in age composition among colony sizes in Cliff Swallows
submitted by iartigo 4 minutes ago - Topic: Health
Variation in group size is characteristic of most social species. The extent to which individuals sort among group sizes based on age may yield insight into why groups vary in size and the age-specific costs and benefits of different social environments. We investigated the age composition of Cliff Swallow (Petrochelidon pyrrhonota) colonies of different sizes over 18 yr at a long-term study si...

Factors affecting the probability of double brooding by Southern House Wrens
submitted by iartigo 4 minutes ago - Topic: Health
Seasonal fecundity of birds is influenced by clutch sizes and the number of successful breeding attempts during a breeding season. As such, understanding the factors that determine the decision to initiate multiple broods within a season and the consequences of this reproductive tactic is important. We examined the frequency of double brooding by Southern House Wrens (Troglodytes aedon musculus...


Comparison of Precipitation Estimates between Version 7 3-Hourly TRMM Multi-Satellite Precipitation Analysis (TMPA) Near-real-time and Research Products
submitted by blaigriinarongi 8 minutes ago - Topic: Geography
Over the years, blended methods that use multi-satellites and multi-sensors have been developed for estimating global precipitation and resulting products are widely used in applications. An example is the 3-hourly TRMM (Tropical Rainfall Measuring Mission) Multi-Satellite Precipitation Analysis (TMPA) that consists of two products: near-real-time (3B42RT) and research-grade (3B42). The former ...

Kinome sequencing reveals RET G691S polymorphism in human neuroendocrine lung cancer cell lines
submitted by killynnaram 8 minutes ago - Topic: Biology
Neuroendocrine (NE) lung tumors comprise 20–25 % of all invasive lung malignancies. Currently, no effective treatments are available to cure these tumors, and it is necessary to identify a molecular alteration(s) that characterizes NE lung tumor cells. We aimed to identify a kinase mutation(s) associated with NE lung tumor by screening 517 kinase-encoding genes in human lung cancer cell line...


Genome-wide comparative analysis of flowering genes between Arabidopsis and mungbean
submitted by killynnaram 8 minutes ago - Topic: Biology
Mungbean is one of the major crops grown in South, East and Southeast Asia because of a high quality of amino acid profile; however, its asynchronous flowering time makes difficult to harvest at a time. Synchronization of flowering time is important to reduce labor costs for harvesting. With the availability of next generation sequencing data of mungbean, we approached a strategy of comparative...

Light and Shadow: Visual Recognition of the Stationary Environment by Leopard Frogs
submitted by vitvnhoa2 10 minutes ago - Topic: Biology
We determined how leopard frogs respond to non-moving aspects of the environment. We have discovered that these frogs are attracted to dark, stationary, opaque objects. This attraction depends on the relative reflectance of the object, i.e., the darker the block, the more attractive it is, and the attraction is found under both bright and dim ambient light levels. Larger blocks are more attract...


Associations between spatial position, stress and anxiety in forest baboons Papio anubis
submitted by vitvnhoa2 10 minutes ago - Topic: Biology
Spatial position within a group affects the value of group-living benefits such as reduced predation risk and improved foraging. The threat of predation, poor nutrition or increased competition from conspecifics can all cause stress. In many species, central positions are known to be more beneficial than peripheral positions in terms of reduced predation, vigilance and foraging. In this study, ...

Focal periosteal chondroma of the hand: A review of 24 cases
submitted by lesdo 10 minutes ago - Topic: Health
Periosteal chondroma is a benign cartilaginous tumour that is less common than enchondroma and rarely arises at the hand. We report a retrospective review of 24 patients with focal periosteal chondroma of the hand and a mean follow-up of seven years and four months. The 13 females and 11 males had a mean age of 41 years and three months. Radiographs performed to investigate a hard lump on a fin...

Revision of primary total hip arthroplasty for peri-prosthetic fracture: A prospective epidemiological study of 249 consecutive cases in France
submitted by lesdo 10 minutes ago - Topic: Health
Revision total hip arthroplasty (reTHA) for peri-prosthetic fracture (PPF) is increasingly performed but still ranks fourth among reasons for reTHA in registries. In France, no specific registry is available and the frequency of PPF among reasons for THA revision is therefore unknown. Here, our objectives were to determine the relative frequency of PPF as a reason for reTHA, to identify patient...

Type IV Laryngotracheoesophageal Cleft with Associated Pulmonary Foregut Malformation
submitted by morgi 13 minutes ago - Topic: Health
Laryngotracheoesophageal clefts are rare anomalies usually diagnosed in early infancy with high rates of morbidity and mortality. Frequent complications after repair are tracheoesophageal fistula, tracheomalacia, and tracheostomy dependence. Here we describe the successful repair of a Type IV larygotracheoesophageal cleft with an associated bronchopulmonary foregut malformation in a full-term f...