松虫-虫相互作用通过选择不同的生命史来促进松虫的生育能力
Pengxiang Wu1, Jiaqi Xu1,2, Ruchen Fu1,2
1Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Pest management science
|November 18, 2024
概括
面对竞争的食草动物可能会改变生命史. 与虫相互作用的虫采用了对冲策略,与与虫或虫竞争的虫不同,这表明了复杂的生态反应.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 昆虫的行为昆虫的行为
背景情况:
- 在跨物种竞争中的食草动物通常会采用快速生命史策略 (早期繁殖,短寿命).
- 这项研究研究的生命史的变化在psyllid Bactericera gobica当与其他食草动物 (虫,虫,虫) 竞争在果植物.
研究的目的:
- 分析跨物种竞争如何影响Bactericera gobica的生命史策略.
- 为了确定竞争是否仅仅推动了更快的生命史,或者是否出现了其他策略.
主要方法:
- 在不同的竞争场景下对Bactericera gobica生命史特征 (繁殖时间,寿命,生育能力) 的比较分析.
- 对与Aphis gossypii (虫),Frankliniella occidentalis (虫) 和Aceria pallida (虫) 的虫相互作用的观察.
主要成果:
- 在与虫和虫竞争时,虫表现出了快速的生命历史.
- 与虫的相互作用导致比对照物更早的繁殖,但比虫/虫更晚的繁殖,加上在更长的寿命内增加资源分配,表明了投注对冲策略.
- trofic 竞争通常会降低 psyllid 的生育能力,除了与相竞争时,生育能力保持或增加.
结论:
- 跨物种相互作用不仅导致更快的生命史;物种可能采用微调的,取决于环境的策略.
- 类动物和虫之间的相互作用似乎是互利的,可能会增强两种物种的持久性.
- 生态利基重叠驱动了草食动物生命历史战略中的复杂适应性反应.
相关概念视频
Frequency-dependent Selection
21.9K
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.
21.9K
Symbiosis
27.5K
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...
27.5K
Types of Selection
40.2K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
40.2K


