A simple spatially explicit neutral model explains range size distribution of reef fishes
A simple spatially explicit neutral model explains range size distribution of reef fishes
复制标题
一个简单的空间显式中性模型解释了珊瑚礁鱼类的范围大小分布
DOI:
10.1101/238600
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Alzate A
中科院分区:
文献类型:
--
作者:
Alzate A
AimThe great variation in range sizes among species has fascinated ecologists for decades. Reef‐associated fish species live in highly spatially structured habitats and adopt a wide range of dispersal strategies. We consequently expect species with greater dispersal ability to occupy larger ranges. However, empirical evidence for such a positive relationship between dispersal and range size remains scarce. Here, we unveil the role of dispersal on the range size distribution of reef‐associated fishes using empirical data and a novel spatially explicit model.LocationTropical Eastern Pacific.Major taxa studiedReef‐associated fishes.Time periodUnderlying records are from the 20th and 21st centuries.MethodsWe estimated range size distributions for all reef‐associated fishes separated into six guilds, each with different dispersal abilities. We used a one‐dimensional spatially explicit neutral model, which simulates the distribution of species along a linear and contiguous coastline, to explore the effect of dispersal, speciation and sampling on the distribution of range sizes. Our model incorporates biologically important long‐distance dispersal events with a fat‐tailed dispersal kernel and also adopts a more realistic gradual “protracted” speciation process than originally used in neutral theory. We fitted the model to the empirical data using an approximate Bayesian computation approach, with a sequential Monte Carlo algorithm.ResultsStochastic birth, death, speciation and dispersal events alone can accurately explain empirical range size distributions for six different guilds of tropical, reef‐associated fishes. Variation in range size distributions among guilds are explained purely by differences in dispersal ability with the best dispersers being distributed over larger ranges.Main conclusionsNeutral processes and guild‐specific dispersal ability provide a general explanation for both within‐ and across‐guild range size variation. Our results support the theoretically expected, but empirically much debated, hypothesis that high dispersal capacity promotes the establishment of large range size.
登录
查看更多内容
影响因子:
8.8
作者:
J. Rosindell;Albert B. Phillimore
通讯作者:
J. Rosindell;Albert B. Phillimore
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
B. Ruttenberg;S. Lester
通讯作者:
S. Lester
影响因子:
6.8
作者:
AKAIKE, H
通讯作者:
AKAIKE, H
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
G. Jones
通讯作者:
G. Jones
影响因子:
5.9
作者:
Cynthia Riginos;Kristina E. Douglas;Young K. Jin;Danielle F. Shanahan;E. Treml
通讯作者:
E. Treml