Video Experimental Relacionado
Updated: Jun 17, 2026

08:02
Dissection and Flat-mounting of the Threespine Stickleback Branchial Skeleton
Published on: May 7, 2016
Lumpers y splitters: Darwin, Hooker y la búsqueda del orden
1Department of History, University of Sussex, Falmer, Brighton BN1 9SH, UK. j.j.endersby@sussex.ac.uk
Resumen
Las teorías de Charles Darwin tuvieron un impacto mínimo en la clasificación botánica de principios del siglo XIX. Joseph Dalton Hooker utilizó las ideas darwinianas para apoyar sus objetivos taxonómicos y establecer la botánica como una disciplina científica.
Área de la Ciencia:
- Botánica y taxonomía.
- Historia de la Ciencia Historia de la Ciencia
- Historia natural y historia natural.
Sus antecedentes:
- La historia natural de principios del siglo XIX se enfrentó a importantes desacuerdos taxonómicos, particularmente con respecto a los recuentos de especies para la flora.
- Los principales taxonomistas tenían diferentes puntos de vista sobre los principios fundamentales de clasificación.
- La comunidad científica debatió el establecimiento de la botánica como una ciencia de prestigio.
Videos de Conceptos Relacionados
Social Loafing
Another way in which a group presence can affect performance is social loafing—the exertion of less effort by a person working together with a group. Social loafing occurs when our individual performance cannot be evaluated separately from the group. Thus, group performance declines on easy tasks (Karau & Williams, 1993). Essentially individual group members loaf and let other group members pick up the slack. Because each individual’s efforts cannot be evaluated, individuals become less...
Limits to Natural Selection
Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.For one, natural selection can only act upon existing genetic variation. Hypothetically, redtusks may enhance elephant survival by deterring ivory-seeking poachers. However, if there are no gene variants—or alleles—for redtusks, natural selection cannot increase the prevalence of...
Robbers Cave
During the 1950s, the landmark Robbers Cave experiment demonstrated that when groups must compete with one another, intergroup conflict, hostility, and even violence may result. At the Oklahoman summer camp, two troops of boys—termed the Rattlers and the Eagles—took part in a week-long tournament. During this time, their negativity culminated in derogatory name-calling, fistfights, and even vandalism and destruction of property. However, this work also revealed that such tension could be...
Social Traps
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned more cows, the larger...
Optimal Foraging
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
Fixed Action Patterns
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.

