Alicia León

Alicia León
Universidad de Salamanca · Department of Animal Biology, Ecology, Parasitology, Pedology and Agricultural Chemistry

PhD

About

3
Publications
634
Reads
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29
Citations
Introduction
Alicia León currently works at the Department of Animal Biology, Ecology, Parasitology, Pedology and Agricultural Chemistry , Universidad de Salamanca. Alicia does research in Ecology of lizards. Her most recent publication is 'Omnivory of an Insular Lizard: Sources of Variation in the Diet of Podarcis lilfordi (Squamata, Lacertidae).'

Publications

Publications (3)
Research
Full-text available
Description of the diet of Podarcis lilfordi in Aire island (Menorca, Balearic Islands) through 17 years, with analysis of the variation among seasons, years and areas of the island.
Article
Full-text available
Through 17 years and from a sample of 7,790 faecal pellets and 26,346 prey items, we studied the diet of the Balearic lizard Podarcis lilfordi in Aire Island (Menorca, Balearic Islands, Spain). We analysed the diet in terms of prey frequencies, as well as by their volume and biomass contributions. The diet of the Balearic lizard was extremely varia...
Article
The two-fingered skink, Chalcides mauritanicus, is a fossorial species from North Africa, where it has only been found at a few localities in sandy sea shores. Virtually nothing is known about its ecology. For the first time, we report the occurrence of an apparently large and well-preserved population of C. mauritanicus at the Chafarinas Islands (...

Questions

Question (1)
Question
I want to assess the effect of a moderator variable (sex) on head and body size covariation. For that, I have used the Johnson-Neyman technique in R (as my slopes are unequal and thus ANCOVA is unsuitable), buy I am not sure about how to interpret the R outcome, that is:
1)
Call:
jn(model = LPADU2, dv = "logLP", iv = "logLCC", mod = "sexo.M",
mrange = 1:2, alpha = 0.05)
Conditional effects of logLCC on logLP at values of sexo.M
sexo.M Effect se t p llci ulci
1 0.9359 0.0329 28.4883 0 0.8714 1.0005
2 1.1993 0.0723 16.5844 0 1.0571 1.3415
2)
Call:
jn(model = LPADU, dv = "logLP", iv = "logLCC", mod = "sexo.H",
mrange = 1:2, alpha = 0.05)
Conditional effects of logLCC on logLP at values of sexo.H
sexo.H Effect se t p llci ulci
1 0.6726 0.0302 22.2708 0 0.6132 0.7319
2 0.4092 0.0688 5.9517 0 0.2741 0.5444
("sexo.M" and "sexo.H" are dummy variables created for performing J-N analysis, as "sex" is a factor with two levels, M and H)
Could anyone help me? Thank you in advance!

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