[R-sig-Geo] spatial distribution of two species and nest design

[Marcelino de la Cruz]

Hi Lutfor,

This seems to me as an instance of what has been called "independent 
labelling" (De la Cruz et al. 2008) or "trivariate random labelling" 
(Biganzoli et al. 2009, Xu et al. 2009).

You can find an old implementation of this approach in function K012 in 
the package ecespa (which depends on spatstat).

Best,

Marcelino



Biganzoli, F., T. Wiegand, and W. B. Batista. 2009. Firemediated
interactions between shrubs in a South American temperate savannah. 
Oikos 118:1383–1395.

De la Cruz, M., R. L. Romao, A. Escudero, and F. T. Maestre.
2008. Where do seedlings go? A spatio-temporal analysis of
seedling mortality in a semi-arid gypsophyte. Ecography 31:
1–11.

Xu, X., T. D. Harwood, M. Pautasso, and M. J. Jeger. 2009.
Spatio-temporal analysis of an invasive plant pathogen
(Phytophthora ramorum) in England and Wales. Ecography
32:504–516.



El 19/02/2014 10:06, Lutfor escribió:
> Dear Forum members, I was trying to find a thread to solve problem using
> "spatstat" but it will not be possible without getting help from help. My
> research question? Is species "A" occupancy is dependent on nest design only
> or interaction of other species "B". I got a data set where about 200 nest
> of 4 different designs were erected in a random pattern of a square block
> about 3 km apart from each other. I would like to test whether species "A"
> prefer a particular design and how it related to distribution of other
> species "B". Will highly appreciated any suggestions. Best regards Lutfor
>
>
>
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