@article {15129,
	title = {An audio-visual nest monitoring system for the study and manipulation of siblicide in bearded vultures <i>Gypaetus barbatus </i>on the island of Crete (Greece)},
	journal = {Journal of EthologyJournal of EthologyJournal of Ethology},
	volume = {27},
	number = {1},
	year = {2009},
	note = {ISI Document Delivery No.: 391NXTimes Cited: 4Cited Reference Count: 82},
	month = {Jan},
	pages = {105-116},
	type = {Article},
	abstract = {We describe here an automated surveillance system that was installed in a bearded vulture (Gypaetus barbatus) nest in Crete during 2003-2006 with the aim of studying siblicide in this species. The system caused only minimal levels of disturbance to the birds and was capable of operating autonomously for more than 1 week. It comprised (1) a nest monitoring subsystem (camera, microphone, battery with a charge controller and a transmitter together with an antenna), which was supported by a solar panel, and (2) a recording subsystem (antenna receiver, video signal controller and a remote controlled PC through a GSM modem) that compressed the audio-video signal and provided real time monitoring. Two-egg clutches with a 7-day laying and hatching interval were recorded while hatching asynchrony was also determined through an analysis of the bioacoustic data. Food delivery rate and number of feeds to the first chick increased after the hatching of its sibling although not significantly so. Of the aggressive interactions recorded, 98\% were initiated by the dominant chick and resulted in an average of 246 +/- A 157 peckings per day. Supplementary feeding did not produce any significant correlation between feeding rate and sibling aggression. The second chick survived 5 days and died as a result of starvation accelerated by sibling aggression. Intervention measures aimed at increasing the survival chance of the second chick should be undertaken when the latter is 1-2 days old.},
	keywords = {AGGRESSION, Audio-video system, bearded vulture, birds, Breeding phenology, BROOD REDUCTION, CANNIBALISM, Crete, EAGLES, FRATRICIDE, HATCHING ASYNCHRONY, RAPTOR NESTS, Siblicide, SIBLING, SOUTHERN AFRICA, Spectrogram, TRANSMITTING VIDEO CAMERA},
	isbn = {0289-0771},
	author = {Grivas, C. and Xirouchakis, S. M. and Christodoulou, C. and Carcamo-Aboitiz, B. and Georgiakakis, P. and Probonas, M.}
}
@conference {2309,
	title = {ΔΡΑΣΕΙΣ ΓΙΑ ΤΗ ΔΙΑΤΗΡΗΣΗ - ΠΡΟΣΤΑΣΙΑ ΤΟΥ ΓΥΠΑΕΤΟΥ ΚΑΙ ΤΗΣ ΒΙΟΠΟΙΚΙΛΟΤΗΤΑΣ ΣΤΗΝ ΚΡΗΤΗ},
	booktitle = {ΕΤΗΣΙΟΥ ΣΥΝΕΔΡΙΟΥ ΕΝΩΣΗΣ ΕΛΛΗΝΩΝ ΟΙΚΟΛΟΓΩΝ \& ΕΛΛΗΝΙΚΗΣ ΖΩΟΛΟΓΙΚΗΣ ΕΤΑΙΡΕΙΑΣ - Βιοποικιλότητα \& Πλανητική Αλλαγή},
	year = {2004},
	month = {18-21 ΝΟΕΜΒΡΙΟΥ},
	publisher = {ΠΑΝΕΠΙΣΤΗΜΙΟ ΑΙΓΑΙΟΥ ΣΧΟΛΗ ΠΕΡΙΒΑΛΛΟΝΤΟΣ},
	organization = {ΠΑΝΕΠΙΣΤΗΜΙΟ ΑΙΓΑΙΟΥ ΣΧΟΛΗ ΠΕΡΙΒΑΛΛΟΝΤΟΣ},
	address = {ΜΥΤΙΛΗΝΗ},
	keywords = {action, barbatus, bearded vulture, biodiversity, birds, conservation, Crete, Gypaetus, Gypaetus barbatus, raptors, αρπακτικά, βιοποικιλότητα, Γυπαετός, διατήρηση, δράση, Κρήτη, πουλιά, προστασία},
	author = {Προμπονάς, Μ. and Ξηρουχάκης, Σ and Γρίβας, K}
}
@conference {2265,
	title = {Η ΕΠΟΙΚΗΣΗ ΤΩΝ ΤΕΧΝΗΤΩΝ ΥΓΡΟΤΟΠΩΝ ΤΗΣ ΚΡΗΤΗΣ ΑΠΟ ΑΝΑΠΑΡΑΓΟΜΕΝΑ ΚΑΙ ΔΙΑΧΕΙΜΑΖΟΝΤΑ ΕΙΔΗ ΥΔΡΟΒΙΩΝ ΠΤΗΝΩΝ},
	booktitle = {Βιοποικιλότητα \& Πλανητική Αλλαγή},
	year = {2004},
	month = {18-21 ΝΟΕΜΒΡΙΟΥ},
	publisher = {ΠΑΝΕΠΙΣΤΗΜΙΟ ΑΙΓΑΙΟΥ ΣΧΟΛΗ ΠΕΡΙΒΑΛΛΟΝΤΟΣ},
	organization = {ΠΑΝΕΠΙΣΤΗΜΙΟ ΑΙΓΑΙΟΥ ΣΧΟΛΗ ΠΕΡΙΒΑΛΛΟΝΤΟΣ},
	address = {ΜΥΤΙΛΗΝΗ},
	keywords = {artificial, Aves, birds, breeding, colonization, Crete, overwinter, wetlands, αναπαραγωγή, διαχειμάζω, εποικήση, Κρήτη, πουλιά, τεχνητοί, υγροβιότοποι},
	author = {Δρετάκης, Μ and Μυλωνάς, Μ}
}
