de las aves de Venezuela. Bol. Sot. Venez. Cienc. Nat. 19: l-317. PHELPS, W. H., AND W. H. PHELPS, JR. 1959. La nidificacion de las aves marinas en el Archipielago de Los Roques. Bol. Sot. Venez. Cienc. Nat. 94:325-336. SICK, H., ~mr A. P. A. L~?Ao. 1965. Breeding sites of Sterna eurygnatha and other seabirds off the Brazilian coast. Auk 82:507-508. SIMPSON, G. G., A. ROE, AND R. C. LEWONTIN. 1...

Yaz›şma Adresi/Address for Correspondence: Dr. Mehmet Gül, İstanbul Mehmet Akif Ersoy Göğüs Kalp Damar Cerrahisi Eğitim ve Araştırma Hastanesi Kardiyoloji Kliniği, İstanbul-Türkiye Tel: +90 212 692 20 00 Fax: +90 212 471 94 94 E-posta: [email protected] Accepted Date/Kabul Tarihi: 11.09.2012 Available Online Date/Çevrimiçi Yayın Tarihi: 27.09.2012 ©Telif Hakk› 2012 AVES Yay›nc›l›k Ltd. Şti. Maka...

Using data on the extent of prebasic molt in known-aged adult and first-winter Western Bluebirds (Sialia mexicana), we assessed the accuracy of the molt limit as a tool for ageing birds. Sixty-nine known-aged birds were examined over the winter 2002–2003 in upper Carmel Valley, California. We also examined 29 breeding males in spring 2004 to assess the accuracy of this method for ageing birds d...

Territorial songbirds generally use song to defend territories and attract mates, but conspecific song may also serve as a cue to attract other male songbirds to a breeding site. Although known to occur in some colonial and forest-associated species, only recently have investigators examined conspecific attraction in grassland species. We used a playback experiment to examine the possible role ...

A cama de aviário é utilizada para absorver umidade e se tornar uma barreira do contato direto da ave com o chão em sistemas intensivos criação. Desse modo, contribui bem-estar melhor desempenho produtivo das aves por reduzir as mudanças bruscas temperatura nos galpões. O objetivo deste trabalho foi avaliar características físico-químicas quatro tipos material aviária sob duas densidades alojam...

Teeth have been missing from birds (Aves) for at least 60 million years. However, in the chick oral cavity a rudiment forms that resembles the lamina stage of the mammalian molar tooth germ. We have addressed the molecular basis for this secondary loss of tooth formation in Aves by analyzing in chick embryos the status of molecular pathways known to regulate mouse tooth development. Similar to ...

Resumen.—La sincronía oscilatoria espontánea se ha documentado en una gran variedad de sistemas eléctricos, mecánicos, químicos y biológicos, incluyendo la sincronización de los ciclos menstruales de las mujeres y los ciclos estrales de Rattus norvegicus. En las regiones templadas, muchas aves coloniales se reproducen estacionalmente en un momento determinado por el fotoperíodo; algunos estudio...

Os beija-flores (Aves: Trochilidae) são exclusivamente americanos, sendo aves de porte pequeno, com bicos finos e longos (Sick, 1997). Apresentam um vôo ágil do tipo pairado, tornando possível que estas possam adejar em frente às flores visitam.

The taxon name “Aves” is currently used for several different clades, a situation that violates the fundamental nomenclatural principle that, to minimize ambiguity, each taxon name should refer to a single taxon. To clarify this situation, we explore some general issues concerning the properties of the three classes of phylogenetic definitions, including: how names can be tied to clades through...

In this paper, an inverse-free dynamical system with fixed-time convergence is presented to solve the of absolute value equations (AVEs). Under a mild condition, it proved that solution proposed converges AVEs. Moreover, in contrast existing \cite{chen2021}, conservative settling-time method given. Numerical simulations illustrate effectiveness new method.