Download Field Guide to the Songbirds of South America: The by Robert S. Ridgely PDF

By Robert S. Ridgely

Этот информативный определитель включает следующие материалы: 121 цветную таблицу, представляющие детальные рисунки 1500 видов певчих птиц; one hundred sixty дополнительных цветных иллюстраций подвидов и самок; современные цветные карты распространения для всех рассмотренных видов; текстовые описания, характеризующие
Доп. информация: Файл является рипом с сайта Google Books. Этим определяется отсутствие некоторых страниц (до 20% от общего числа) и невысокое разрешение сканирования (около a hundred dpi).

Read Online or Download Field Guide to the Songbirds of South America: The Passerines PDF

Best zoology books

Modern Text Book of Zoology Vertebrates

The publication has been written to cater for the durable wishes of Indian scholars because it is sort of most unlikely for them to selected any unmarried textbook on vertebrates. it's meant basically as a textbook for the Honours and the Undergraduate scholars of the Indian Universities. besides the fact that, the scholars of upper periods, the applicants getting ready for numerous competetive examinations, and the topic academics can also locate it necessary as a convenient consultant for reference.

Northwoods Wildlife: A Watcher's Guide to Habitats

Booklet through Benyus, Janine M.

Sensory Physiology of Aquatic Lower Vertebrates. Satellite Symposium of the 28th International Congress of Physiological Sciences, Keszthely, Hungary, 1980

Advances in Physiological Sciences, quantity 31: Sensory body structure of Aquatic decrease Vertebrates covers the court cases of the symposia of the twenty eighth foreign Congress of body structure. The ebook offers 17 papers that aspect strengthen findings within the sensory body structure of aquatic reduce vertebrates. The insurance of the textual content contains electroreceptors in Indian catfish teleosts; electroreceptive microampulla within the African mudfish Clarias lazera; and species specificity of electrical organ discharges in a sympatric workforce of gymnotoid fish from Manaus.

The Exultant Ark A Pictorial Tour of Animal Pleasure

Nature documentaries frequently depict animal existence as a grim fight for survival, yet this visually wonderful booklet opens our eyes to another, extra scientifically up to date means of the animal state. in additional than 130 notable photos, The Exultant Ark celebrates the total diversity of animal adventure with dramatic photographs of animal excitement starting from the charismatic and general to the imprecise and peculiar.

Extra info for Field Guide to the Songbirds of South America: The Passerines

Example text

A) Cromosomas de un a larva de C hironom us, Nucí nucléolo, b) E l p a r más pequeño de cromosomas de un núcleo de célula de glándula salival de Drosophila niela nogaster; en general el apareamiento de los homólogos es ta l que no se percibe la línea de separación, c) Dotación cromosómica de D. org 5n m ) puntifonne (según B k id c f sj . d ) Esquem a de la estructura de un cromosoma gigante Jorm ado por numerosas cromátidas. Cromosomas 25 15), así c o m o lo s d e s c u b rim ie n to s s o b r e la m u ta c ió n , y la re p lic a ció n sc m ic o n s e rv a d o ra (p á g in a 30).

Los cultivos de Fibroblastos sólo d u ra d e 12-20 horas (fig. 17). La metafase y la analase apenas necesitan más de algunos minutos. La velocidad d e los cro­ mosomas en su m ovim iento de desplazamiento de la placa ecuatorial a los polos es de 1-4 pin p o r m inuto. Esto corresponde a los valores de otros movi­ mientos citoplasinálicos, m ás o menos com o la retracción de los pseudópodos en u n a am eba (pág. 219). org 32 Genética y citología ° DNA Fig. 17. Replicación del D N A . Vl2 inicio de lasegunda mitosis.

L o s m a c h o s d e lo s h im e n ó p te r o s c o m o las avispas, a b e ja s y h o rm ig a s se d e s a r ro lla n p a r te n o g e n é tic a m c n te . La r e p r o d u c c ió n u n ise x u a l ta m b ié n se p re se n ta e n v e rte b ra d o s , lo cual se h a d e m o s tr a d o q u e o c u rr e , e n tr e o tro s , e n cie rta s esp ecies d e lagartijas a m e ric a n a s y caucásicas, cuy as p o b la c io n e s c a re ce n de m a c h o s. A sim ism o , el 3 0 -4 0 % d e lo s h u e v o s d e p av a n o fe c u n d a d o s inician u n d e s a r ro llo p a rte n o g e n c tic o , p e r o e n g en e ra l é ste se d e tie ­ n e e n e sta d io s m u y te m p ra n o s .

Download PDF sample

Rated 4.76 of 5 – based on 39 votes