Videos de Conceptos Relacionados
02:22The Colonization of Land
31.9K
Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
31.9K
02:31Habitat Fragmentation
15.8K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
15.8K
00:48Optimal Foraging
11.9K
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.
11.9K
01:25Rab Cascades
2.9K
Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.
2.9K
00:53Migration
8.1K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
8.1K
04:49Robbers Cave
13.6K
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...
13.6K
También podría leer
Artículos Relacionados
Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.
Ordenar por
Same author
Interdependencies between Indigenous peoples, local communities, and freshwater systems in a changing Amazon.
Conservation biology : the journal of the Society for Conservation Biology·2025
Same author
Floodplain forests drive fruit-eating fish diversity at the Amazon Basin-scale.
Proceedings of the National Academy of Sciences of the United States of America·2025
Video Experimental Relacionado
Updated: May 6, 2026
10:11
Collection and Long-Term Maintenance of Leaf-Cutting Ants Atta in Laboratory Conditions
Published on: August 30, 2022
4.5K
Volviendo al Amazonas colombiano.
Elizabeth P Anderson1, Javier A Maldonado-Ocampo
1School of Environment, Arts, and Society, Florida International University, Miami, FL 33181, USA.
Science (New York, N.Y.)
|November 9, 2013
Resumen
No abstract available in PubMed .
