小工人在提供和要求帮助时更持久,在单态中更持久
Filip Turza1,2, Krzysztof Miler3
1Doctoral School of Exact and Natural Sciences, Jagiellonian University, Prof. S. Łojasiewicza 11, 30-348, Kraków, Poland. filip.turza@uj.edu.pl.
Scientific reports
|December 7, 2023
概括
尽管Formica cinerea的工人大小相似,但较小的在救助被困的巢伙伴方面表现出更大的坚持. 这项研究揭示了救援行动中与大小相关的行为差异.
科学领域:
- 行为生态学 行为生态学
- 昆虫社会行为 昆虫社会行为
- 进化生物学 进化生物学
背景情况:
- 表现出复杂的社会结构和行为,身体大小经常影响多态物种的任务分配.
- ,尽管有单态的工人,显示显著的尺寸变化,促使研究大小依赖的行为差异.
研究的目的:
- 为了调查身体大小是否会影响在Formica cinerea中的巢友救援期间的食行为.
- 分析救援活动频率,持续时间和被困个体的行为中与大小相关的差异.
主要方法:
- 在模拟的陷和救援场景中对大型和小型Formica cinerea工人的行为进行比较分析.
- 对不同规模的工人进行救援活动的量化,启动救援的时间和救援工作的持续时间.
- 根据其体型来评估被困工人的活动水平.
主要成果:
- 在小型和大型 Formica cinerea 工人之间,救援尝试的频率或初始延迟没有显著差异.
- 与大型工人相比,小型工人的救援持续时间明显更长.
- 被困的小工人表现出比被困的大工人更高的活动水平.
结论:
- 虽然Formica cinerea在启动救援方面缺乏以大小为基础的专业化,但较小的工人表现出更大的行为持久性.
- 在Formica cinerea工作者的尺寸变化影响了救援行为,较小的个体在被困时表现出长时间的参与和更高的活动.
- 这些发现强调了研究社会昆虫个体之间的行为变异的重要性,即使是在看似统一的工人大小的物种中也是如此.
相关概念视频
00:57Inclusive Fitness
36.0K
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
36.0K
01:47Osmoregulation in Insects
16.2K
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
16.2K
01:03Altruism
41.1K
Altruistic behaviors are “unselfish” behaviors—those that help another individual at the expense of the individual carrying out the behavior. Despite the negative consequences for the altruistic animal, these behaviors are thought to have evolved for several reasons.
41.1K
00:58Symbiosis
28.2K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
28.2K
02:39Predator-Prey Interactions
16.3K
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
16.3K
01:21Frequency-dependent Selection
22.0K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.0K