| |
|
|
|
|
|
|
|
|
1. |
Record Nr. |
UNINA9910557484003321 |
|
|
Autore |
Vargas Rojas Gustavo |
|
|
Titolo |
Cortezas de árboles y arbustos del Parque Nacional Palo Verde |
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Heredia, : Editorial Universidad Nacional (EUNA), 2018 |
|
|
|
|
|
|
|
Descrizione fisica |
|
|
|
|
|
|
Soggetti |
|
Botany & plant sciences |
Trees, wildflowers & plants |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Sommario/riassunto |
|
For lovers of trees and shrubs, Editorial UNA presents four volumes of the digital field guide: Barks of Trees and Shrubs of the Palo Verde National Park. Anyone who walks through the forests of Costa Rica will find fascinating the diversity of trees that provide shade and food for the rest of the organisms. This diversity is reflected in the shape, texture and color of the different barks. The digital guides of the bark of trees and shrubs of the Palo Verde National Park are then a very practical tool to identify the different species of trees in the Park; since in many cases it is very difficult to obtain the leaves, flowers and fruits to carry out this task. In a place like the Palo Verde National Park and in a time like the dry season, the forest trees lose their leaves in response to avoid water loss (they avoid losing water through perspiration through their leaves). At this time the trees will not have leaves, flowers or fruits to be identified, only the bark gives us the possibility of knowing their scientific and vernacular name. The purpose of the digital guides (barks of trees and shrubs of the Palo Verde National Park) is to provide the walker interested in trees with a practical tool to identify their names, which would initiate an unsuspected explosion of scientific and cultural knowledge. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2. |
Record Nr. |
UNINA9910524865603321 |
|
|
Autore |
Hailman Jack Parker <1936-> |
|
|
Titolo |
Optical Signals : Animal Communication and Light / / Jack P. Hailman |
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Indiana University Press, 1977 |
|
Bloomington : , : Indiana University Press, , 1977 |
|
©1977 |
|
|
|
|
|
|
|
|
|
ISBN |
|
|
|
|
|
|
Descrizione fisica |
|
1 online resource (1 online resource xix, 362 pages) : : illustrations |
|
|
|
|
|
|
Soggetti |
|
Tiere |
Optisches Signal |
Kommunikation |
Animals - Color |
Animal communication |
Animaux - Couleur |
Communication animale |
Electronic books. |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Sommario/riassunto |
|
Why do visual signals have the characteristics that they do? Why do animals (including man) gesture, posture, and move in communicative fashions? Why are animals colored and patterned in particular ways? Optical Signals is the first attempt to answer these and related questions. After presenting a synthetic framework of social communication, ethology, mathematical information theory, and semiotics, Hailman explains the relevant background: considerations of the physics of light that carry information from sender to receiver, and properties that limit the receiver's ability to get and send information encoded in light. Next Hailman puts together data from different disciplines in order to discover the "design characteristics" of optical signals. The major part of the book concerns these design characteristics and factors that influence them: behavioral patterns and |
|
|
|
|
|
|
|
|
|
|
coloration that look like visual signals but are not, principles of visual deception, and the way in which the physical and biological environment structures the characteristics of signals. Lastly, the book considers how the message being transmitted influences the design of the signal itself. |
|
|
|
|
|
| |