Pigment-based skin colour in the blue-footed booby: an honest signal of current condition used by females to adjust reproductive investment
- A. Velando, R. Beamonte-Barrientos, R. Torres
- BiologyOecologia
- 4 July 2006
The data indicate that blue-footed booby females are continuously evaluating their mates and can perform rapid adjustments of reproductive investment by using dynamic sexual traits, and suggests that this fine-tuned adjustment may be widespread in socially monogamous animals.
Senescent birds redouble reproductive effort when ill: confirmation of the terminal investment hypothesis
- A. Velando, H. Drummond, R. Torres
- BiologyProceedings of the Royal Society B: Biological…
- 22 June 2006
It is demonstrated that senescent males with poor reproductive prospects increase their effort when those prospects are threatened, whereas younger males with good reproductive prospects do not.
A three-isotope approach to disentangling the diet of a generalist consumer: the yellow-legged gull in northwest Spain
- R. Moreno, L. Jover, Ignacio Munilla, A. Velando, C. Sanpera
- Environmental Science
- 1 March 2010
This work used a Bayesian triple-isotope mixing model to reconstruct the diet of a generalist predator, the yellow-legged gull, and highlights the potential of adding δ34S for distinguishing not only between terrestrial and marine prey, but also between different marine species such as fish, crabs and mussels.
Avoiding bad genes: oxidatively damaged DNA in germ line and mate choice.
- A. Velando, R. Torres, C. Alonso-Alvarez
- BiologyBioessays
- 1 November 2008
The hypothesis that females are able to avoid males with oxidatively damaged DNA in the germ line by using oxidative-dependent (pre- and post-mating) signals is proposed, which may shed light on unsolved questions in evolutionary biology.
Differential body condition regulation by males and females in response to experimental manipulations of brood size and parental effort in the blue‐footed booby
- A. Velando, C. Alonso-Alvarez
- Biology
- 1 September 2003
Results revealed that blue-footed boobies have a sex-specific body mass regulation, and below a critical level, females preferentially allocated resources to the maintenance of their body condition at the expense of investment in current reproduction.
Intercolony and seasonal differences in the breeding diet of European shags on the Galician coast (NW Spain)
- A. Velando, Juan Freire
- Environmental Science
- 3 November 1999
The consumption of sandeels established an increased similarity in diet between the colonies throughout the breeding cycle, and they were the only prey whose abundance was negatively correlated with the diversity of each pellet.
Male reproductive senescence: the price of immune-induced oxidative damage on sexual attractiveness in the blue-footed booby.
- R. Torres, A. Velando
- BiologyJournal of Animal Ecology
- 1 November 2007
It is shown that a sexual signal (foot colour) declines with age, due probably to the deleterious effects of oxidative damage, which supports the idea that oxidative stress affects reproductive senescence and suggests that oxidative damage might be a proximal mechanism underlying age-reproductive patterns in long-lived animals.
The plasmatic index of body condition in Yellow-legged Gulls Larus cachinnans : a food-controlled experiment
- C. Alonso-Alvarez, M. Ferrer, A. Velando
- Biology
- 2002
The plasmatic index of body condition in Yellow-legged Gulls Larus cachinnans : a food-controlled experiment and the results confirm the importance of knowing the carrier and removal status of these viruses.
Benefits and costs of parental care
- C. Alonso-Alvarez, A. Velando
- Biology
- 2012
This chapter addresses the control systems that translate cues perceived by the organism about costs and benefits allowing individuals to take decisions, and also explores how trade-offs need not be based on resources, and the relevance of cost-free resources.
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