Geese are overlooked dispersal vectors for vascular plants in archipelago environments
Geese are overlooked dispersal vectors for vascular plants in archipelago environments
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鹅是群岛环境中维管植物的被忽视的传播媒介
DOI：
10.1111/jvs.12742
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发表时间：
2019
影响因子：
2.8
通讯作者：
Eckstein R.L.
中科院分区：
文献类型：
--
作者：
Hattermann D;Bernhardt-Römermann M;Otte A. ;Eckstein R.L.
我们解决了灰雁肠道介导的传播对群岛环境中维管植物的重要性，并提出了以下问题：(a)由鹅传播的本地物种池的比例是多少？(b)由鹅传播的物种有哪些植物特征？(c)哪些植物群落可能从鹅的筑巢中受益？三个瑞典波罗的海群岛。方法在45个海岛采集鹅粪。从粪便中萌发的植物代表了一个内毒素物种池（ESP）。在108个岛屿上，每个栖息地都记录了维管植物的存在。这些物种代表了岛屿物种池（ISP）。ESP和ISP之间的功能特征差异用效应量表示，并使用meta回归进行检验。通过指示种分析和管理的半自然草地指示种分析，确定了半自然草地的主要生境。结果鹅分散了97种植物的可活孢子，占半自然草地的22%。大多数ESP物种是典型的小岛屿物种。鹅散布的禾本科植物比例较高，木本植物比例较低，变色虫和植虫植物比例较高，显生植物比例较低；一年生植物和双一年生植物的比例明显过高。ESP的种子体积平均比ISP小95%。大约51%的ESP物种分布在至少两个群岛上。鹅表现出对岩石海岸栖息地的偏好。结论鹅可能分散大量陆生岛屿植物。鹅通过取食行为，从区域物种池中选择具有特定性状的物种。雁的植物传播可能有利于岩石海岸的植物物种，但以前被管理的半自然草原的物种也可能在雁介导的传播后在沿海海岸找到避难所。在持续的土地利用变化和放牧网络的停止下，鹅作为传播媒介的相对重要性可能会增加。
QuestionWe addressed the importance of gut‐mediated dispersal by greylag geese for vascular plants in archipelago environments and asked: (a) What proportion of the local species pool is dispersed by geese? (b) Which plant traits characterize species dispersed by geese? (c) Which plant communities are likely to benefit from endozoochory by geese?LocationThree Swedish Baltic archipelagos.MethodsGoose droppings were collected on 45 islands. Plants germinating from the droppings represent the endozoochorous species pool (ESP). On 108 islands, the presence of vascular plants was recorded in each habitat. These species represent the island species pool (ISP). Differences in functional traits between ESP and ISP were expressed as effect sizes and tested using meta‐regressions. Using indicator species analyses and indicator species for managed semi‐natural grasslands, we identified the primary habitats of the ESP.ResultsGeese dispersed viable diaspores of 97 plant species, which represents 22% of the ISP. Most ESP species were typical for small islands. Geese dispersed a higher proportion of graminoids and less woody plants, higher proportions of chamaephytes and therophytes and less phanerophytes; annuals and bi‐annuals were significantly overrepresented. On average, seed volume of the ESP was 95% smaller than that of the ISP. About 51% of all ESP species were dispersed in at least two archipelagos. Geese showed a bias towards species of rocky shore habitats.ConclusionGeese potentially disperse large amounts of diaspores of many terrestrial island plant species. Through their feeding behaviour, geese select species with certain suites of traits from the regional species pool. Plant dispersal by geese may benefit plants species of rocky shores, but species of formerly managed semi‐natural grasslands may also find refuge sites on epilittoral shores after goose‐mediated dispersal. The relative importance of geese as dispersal vectors may increase under on‐going land‐use changes and cessation of grazing networks.
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岛屿上的植物
影响因子：
4.8
作者：
M. Cody
通讯作者：
M. Cody
DOI：
10.1098/rspb.2015.2406
发表时间：
2016-01
期刊：
Proceedings of the Royal Society B: Biological Sciences
影响因子：
--
作者：
Duarte S. Viana;L. Gangoso;W. Bouten;J. Figuerola
通讯作者：
Duarte S. Viana;L. Gangoso;W. Bouten;J. Figuerola
影响因子：
2.8
作者：
Auffret, Alistair G.;Schmucki, Reto;Cousins, Sara A. O.
通讯作者：
Cousins, Sara A. O.
水鸟大型苔藓植物碎片的内生动物
DOI：
10.7872/cryb/v38.iss2.2017.223
发表时间：
2017
期刊：
Cryptogamie, Bryologie
影响因子：
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作者：
D. Wilkinson;Ádám Lovas‐Kiss;D. Callaghan;A. Green
通讯作者：
A. Green
小种子尺寸增加了鸭子传播湿地植物的潜力
影响因子：
5.5
作者：
M. Soons;C. I. van der Vlugt;Bart van Lith;G. Heil;M. Klaassen
通讯作者：
M. Klaassen