[R-sig-eco] repeated measures ANOVA and PERMANOVA (does it exist?)

[Zoltan Botta-Dukat]

Hi,

You also try using principal response curves as suggested in this recent 
publication:

dx.doi.org/10.1002/ecs2.2023

Zoltan


2018.01.24. 15:28 keltezéssel, Pedro Pequeno írta:
> Hi,
>
> you could ordinate your observations first (e.g. using NMDS or PCoA), and
> then model the resulting scores using location and time as predictors (if
> you are interested in estimating their independent effects), or using a
> repeated-measures Anova or a GLMM with location as random factor  to
> account for within-location autocorrelation.
>
> Just in case, Legendre & Gauthier (2014) discuss several approaches for
> space-time analyses (
> http://rspb.royalsocietypublishing.org/content/281/1778/20132728.short)
>
> Cheers,
>
> Pedro A. C. L. Pequeno
>
> Em terça-feira, 23 de janeiro de 2018, David Barfknecht <
> dfbarfknecht at outlook.com> escreveu:
>
>> Hello all,
>>
>> I am currently working on a project that uses species occurrence data
>> (0/1) to construct an NMDS ordination where some points are the same
>> location but through time (10 locations X 3 survey times = 30
>> observations). I want to use ANOSIM and PERMANOVA to look at both
>> individual locations controlling for time and all survey periods
>> controlling for location. Basically, I want to look at location and times
>> as separate factors.  I am curious if anyone have ever had to write a
>> script for repeated measures ANOSIM and/or PERMANOVA. I am aware of how to
>> do the unrepeated measures version of these in the vegan package, but not
>> repeated measures versions. Any suggestions?
>>
>> If not, are there other methods more appropriate to investigate this?
>>
>> Thank you in advance for any advice.
>>
>> Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
>> Windows 10
>>
>>
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Botta-Dukát Zoltán                                Zoltán BOTTA-Dukát
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Ökológiai és Botanikai Intézet                    Institute of Ecology and Botany
Magyar Tudományos Akadémia                        Hungarian Academy of Sciences
Ökológiai Kutatóközpont                           Centre for Ecological Research
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