Chemical defense over decadal scales: Ontogenetic allocation trajectories and consequences for fitness in a foundation tree species
Chemical defense over decadal scales: Ontogenetic allocation trajectories and consequences for fitness in a foundation tree species
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十年尺度的化学防御：个体发生分配轨迹和基础树种适应性的影响
DOI：
10.1111/1365
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发表时间：
2019
影响因子：
5.2
通讯作者：
Barton, Kasey
中科院分区：
文献类型：
--
作者：
Cope, Olivia L.;Kruger, Eric L.;Rubert‐Nason, Kennedy F.;Lindroth, Richard L.;Barton, Kasey
打破限制的适应是一种进化工具，它提供了一种机制，在扮演相似生态角色的物种之间进行现任替代。在普通花园实验中，我们将两种沙漠啮齿动物的种群暴露于两种不同的毒蛇物种，测试它们适应使用不同狩猎策略的新型捕食者的能力。我们的目标是了解具有突破限制适应能力的捕食者和猎物是否真的表现出相对于同类的比较优势。我们使用了来自北美莫哈韦沙漠沙丘的趋同物种，梅里亚姆的袋鼠鼠Dipodomys merriami和响尾蛇响尾蛇Crotalus cerastes，以及来自中东内盖夫沙漠的大埃及沙鼠Gerbillus cerastes和撒哈拉角毒蛇Cerastes。这两个莫哈韦物种都有着打破束缚的适应能力，与来自内盖夫的同类相比。响尾蛇有热感应器官（凹陷），袋鼠鼠有毛皮衬里的颊囊，可以提高觅食效率和食物保存。使用斑块使用理论，我们评估了啮齿类动物对每种蛇的风险评估-单独，一起和与仓鸮组合。最初，每种啮齿类动物在熟悉的蛇存在时觅食较少，但在一个月内，两种啮齿类动物在蝮蛇（响尾蛇）存在时觅食较少。我们的研究结果表明，啮齿类动物的学习水平和行为可塑性以及评估新捕食者风险的能力。袋鼠鼠能够在同样的高风险条件下收获更多的资源。然而，它们的优势可能在于双足的敏捷性，而不仅仅是它们更有效地收集食物的能力。
Constraint‐breaking adaptations are evolutionary tools that provide a mechanism for incumbent‐replacement between species filling similar ecological roles.In common‐garden experiments, we exposed populations of two desert rodents to two different viper species, testing their ability to adjust to novel predators that use different hunting strategies. We aimed to understand whether both predators and prey with constraint‐breaking adaptations actually manifest comparative advantage over their counterparts.We used convergent species from desert dunes in the Mojave Desert in North America, Merriam's kangaroo ratDipodomys merriamiand the sidewinder rattlesnakeCrotalus cerastes, and from the Negev Desert in the Middle East, the greater Egyptian gerbilGerbillus pyramidumand the Saharan horned viperCerastes cerastes. Both Mojave species hold constraint‐breaking adaptations in relation to their counterparts from the Negev. The rattlesnakes have heat sensing organs (pits) and the kangaroo rats have fur‐lined cheek pouches that allow for greater foraging efficiency and food preservation. Using patch‐use theory, we evaluated the rodents' risk‐assessment from each snake—separately, together and in combination with barn owls.Initially each rodent species foraged less in the presence of its familiar snake, but within a month both foraged less in the presence of the pit‐viper (sidewinder).Our findings indicate a level of learning, and behavioural plasticity, in both rodents and ability to assess the risk from novel predators. The kangaroo rats were capable of harvesting far greater amounts of resources under the same conditions of elevated risk. However, the reason for their advantage may lie in bi‐pedal agility and not only their ability collect food more efficiently.
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植物次生代谢物的生态学：植物次生代谢物产生的时间变化
DOI：
--
发表时间：
2012
期刊：
影响因子：
--
作者：
J. Koricheva;K. Barton
通讯作者：
K. Barton
影响因子：
3.6
作者：
Younginger BS;Sirová D;Cruzan MB;Ballhorn DJ
通讯作者：
Ballhorn DJ
影响因子：
5.6
作者：
Six DL;Vergobbi C;Cutter M
通讯作者：
Cutter M
春季冻害和遗传变异会改变树木的生长、化学和昆虫相互作用。
DOI：
10.1111/pce.13042
发表时间：
2017
期刊：
Plant, cell & environment
影响因子：
--
作者：
Kennedy F. Rubert‐Nason;J. Couture;Elizabeth A Gryzmala;P. Townsend;R. Lindroth
通讯作者：
R. Lindroth
影响因子：
2.7
作者：
Cole, Christopher T.;Stevens, Michael T.;Lindroth, Richard L.
通讯作者：
Lindroth, Richard L.