Results 21 to 30 of about 86,548 (208)
Revista Eureka sobre enseñanza y divulgación de las ciencias, 2010 Para ilustrar el fenómeno de la ósmosis se presentan dos experiencias sencillas que pueden realizarse con materiales cotidianos (patatas, huevos, agua, sal, vinagre...), tanto a nivel cualitativo como cuantitativo.
openaire +4 more sources
Graellsia, 2012 Tras una breve introducción sobre la evolución en el conocimiento de las fases juveniles de la familia Chrysopidae, sobre su biología, comportamiento y características morfológicas más interesantes, se realiza una revisión de los estadios preimaginales ...
V. J. Monserrat, L. M. Díaz-Aranda
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Chemical Composition of the Eggs of the Freshwater Turtle Phrynops hilarii (Chelidae: Testudines) [PDF]
, 2019 At oviposition, amniote eggs contain all the nutrients required for complete neonate tissue development. For reptiles and birds, the egg yolk is the main embryonic energy source and is composed predominantly of proteins and lipids, while also providing ...
Bernardi, Cecilia Gabriela +3 more
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When and why to give shorebirds a head start
Conservation Biology, EarlyView.Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
wiley +1 more source
El huevo de traspatio: características físicas y desempeño en pruebas de incubación artificial
Acta Universitaria, 2019 El huevo de traspatio es de tamaño variable, en comparación con el huevo incubable comercial. El objetivo fue incubar huevo de traspatio para conocer las características físicas y desempeño en pruebas de incubación artificial.
Marco Antonio Camacho-Escobar +7 more
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A new family, Coryphoridae (Ephemeroptera: Ephemerelloidea), and description of the winged and egg stages of Coryphorus [PDF]
, 2001 A new family Coryphoridae is proposed in the superfamily Ephemerelloidea for the monotypic genus Coryphorus. Characters that distinguish Coryphoridae from all other Ephemerelloidea are discussed.
del Carmen Zuniga de Cardoso, Maria +2 more
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Estimating egg mass-body mass relationships in birds [PDF]
, 2020 The mass of a bird’s egg is a critical attribute of the species’ life history and represents a fundamental component of reproductive effort. Indeed, the tradeoff between the number of eggs in a clutch and clutch mass lies at the heart of understanding ...
Balasubramaniam, Priya +1 more
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Cowbirds use conspecific social information to detect host nests in the wild
Ibis, Volume 168, Issue 2, Page 799-804, April 2026.Recent work shows that hosts of avian brood parasites use social information to increase egg rejection rates, but fewer studies explore how parasites themselves use such information to detect host nests in the wild. To determine whether wild Brown‐headed Cowbirds Molothrus ater use social information to detect host nests, we measured how individual ...
Omar J. Morosse +2 more
wiley +1 more source
Color de la yema y ácidos grasos del huevo de guajolote criollo y pato
Ecosistemas y Recursos AgropecuariosEl huevo de guajolote y de pato juegan un papel importante en la avicultura de traspatio, debido a que son una fuente de proteína animal para las familias de escasos recursos en México. El objetivo de esta investigación fue describir las características
Filogonio Jesús Hernández-Guzmán +5 more
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