scholarly journals New records and probable migration routes of the Sora Porzana Carolina (Aves: Rallidae) in Peru

2017 ◽  
Vol 25 (3) ◽  
pp. 221-225
Author(s):  
Luis Martin Vallejos ◽  
Irwing S. Saldaña ◽  
Elio Nuñez ◽  
Antonio García-Bravo ◽  
Maurício Brandão Vecchi
Check List ◽  
2012 ◽  
Vol 8 (3) ◽  
pp. 563 ◽  
Author(s):  
Rafael A. Dias ◽  
Carlos Eduardo Agne ◽  
André Barcelos-Silveira ◽  
Leandro Bugoni

We report new records of the Arctic Tern Sterna paradisaea Pontoppidan, 1763 for the coast of Rio Grande do Sul, southernmost Brazil. Birds were in first alternate plumage, apparently overwintering in the region. A literature and museum review revealed the existence of 21 localities with records of this species in Brazil. Ten specimens were obtained in the country, attributable to eight localities. Records from five other localities were documented with band recoveries or photographs. We were able to clarify information from one of the undocumented records, while the remaining requires further investigation and/or documentation. Our review and new information on migration routes confirm that the Arctic Tern in Brazil is a regular, seasonal visitor from the northern hemisphere. We also suggest that waters off south Brazil may be used by overwintering individuals, especially during the austral winter.


2018 ◽  
pp. 214-223
Author(s):  
AM Faria ◽  
MM Pimenta ◽  
JY Saab Jr. ◽  
S Rodriguez

Wind energy expansion is worldwide followed by various limitations, i.e. land availability, the NIMBY (not in my backyard) attitude, interference on birds migration routes and so on. This undeniable expansion is pushing wind farms near populated areas throughout the years, where noise regulation is more stringent. That demands solutions for the wind turbine (WT) industry, in order to produce quieter WT units. Focusing in the subject of airfoil noise prediction, it can help the assessment and design of quieter wind turbine blades. Considering the airfoil noise as a composition of many sound sources, and in light of the fact that the main noise production mechanisms are the airfoil self-noise and the turbulent inflow (TI) noise, this work is concentrated on the latter. TI noise is classified as an interaction noise, produced by the turbulent inflow, incident on the airfoil leading edge (LE). Theoretical and semi-empirical methods for the TI noise prediction are already available, based on Amiet’s broadband noise theory. Analysis of many TI noise prediction methods is provided by this work in the literature review, as well as the turbulence energy spectrum modeling. This is then followed by comparison of the most reliable TI noise methodologies, qualitatively and quantitatively, with the error estimation, compared to the Ffowcs Williams-Hawkings solution for computational aeroacoustics. Basis for integration of airfoil inflow noise prediction into a wind turbine noise prediction code is the final goal of this work.


2018 ◽  
Vol 24 (1) ◽  
Author(s):  
JASWINDER KAUR ◽  
SATYA NARAIN

The floristic exploration and critical examination of specimens collected of family Convolvulaceae from Upper Gangetic Plains of India, resulted in addition of 2 new records for the flora viz. Ipomoea littoralis and Ipomoea capitellata var. multilobata. Detailed description, phenology, ecology, distribution, locality, field number, type specimens examined, illustrations and other relevant notes are provided.


2016 ◽  
Vol 68 (2) ◽  
pp. 139-148 ◽  
Author(s):  
Mohammad Amoopour ◽  
Masoomeh Ghobad-Nejhad ◽  
Seyed Akbar Khodaparast
Keyword(s):  

2007 ◽  
Vol 59 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Mykola P. Prydiuk
Keyword(s):  

2012 ◽  
Vol 2 (11) ◽  
pp. 517-520
Author(s):  
VIJAYA BHANU, CH VIJAYA BHANU, CH ◽  
◽  
ANNAPURNA, C ANNAPURNA, C ◽  
SRINIVASA RAO, M SRINIVASA RAO, M ◽  
SIVA LAKSHMI, M. V SIVA LAKSHMI, M. V ◽  
...  

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