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221 results on '"Lovari, S."'

18. Sexual assessment in the male dove: behavioural and physiological effects of choice without interaction

Author

Lovari, S., Hutchison, R.E., and Hutchison, J.B.

Subjects
Courtship of animals -- Research, Pigeons -- Sexual behavior, Animal behavior -- Research, Estrogen -- Research, Birds -- Eggs and nests, Zoology and wildlife conservation
Abstract

A study on the socio-sexual, visual stimulation and its behavioral effects on male dove indicates that male Barbary doves distinguish between male and female stimulus doves from a distance. Results show no changes in their behavior toward uninseminated and recently inseminated females, though they choose to display to newly established pairs. Their preferences are also accompanied by changes in oestrogen formation within the brain. The results are contrary to prediction, since defense of genetic paternity has been claimed for the male dove.

Published
1994

21. Land mammal colonisation of islands is a multifactorial product; a critic to the unwise use of models

Author

Mazza, P, Lovari, S, Masseti, M, Rustioni, M., MASINI, Federico, Mazza, P, Lovari, S, Masini, F, Masseti, M, and Rustioni, M

Subjects
Island Biogeography, Models, Palogeography, Constraints, Settore GEO/01 - Paleontologia E Paleoecologia
Abstract

The colonization of islands by terrestrial mammals has been the topic of a flurry of studies. Contributions normally tend to oversimplify the subject, focusing on specific key factors which are allegedly considered the best to explain why, how and when non volant terrestrial mammals reached islands and which are used to devise models. The subjectivity in the choice of key factors understandably leads to controversy and debate. Insular faunas are the multifactorial result of complex combinations of facts, conditions and processes. Hence, the faunal assemblages of each island should be inquired individually, on a case-by-case basis. Models, by definition, are simplified representations of reality, which turn into oversimplifications when reality is so overly complex as it is in islands; yet models are usually considered the unavoidable starting point of investigations. An evidence-based, multidisciplinary approach, instead, is highly recommended. Besides obvious paleontological evidence, we need to carefully inspect geological and stratigraphical information, climatological factors, sealevel evolution, paleogeographic characteristics, ecological, physiological and environmental factors, behavioral characters and ecological preferences, genetics and densities of colonizing populations, as well as taphonomic, sampling and analytical biases. The lack of some of this indispensable information seriously affects the reliability of interpretations and reconstructions.

Published
2011

38. Conservation introduction of the threatened Apennine chamois Rupicapra pyrenaica ornata: post-release dispersal differs between wild-caught and captive founders.

Author

Bocci, A., Menapace, S., Alemanno, S., and Lovari, S.

Subjects
RUPICAPRA pyrenaica, DISPERSAL (Ecology), INBREEDING, GLOBAL Positioning System
Abstract

Sixteen Apennine chamois Rupicapra pyrenaica ornata (10 females, 6 males) were released into a protected area, the Sibillini Mountains National Park, Central Apennines, Italy, and monitored using global positioning system radio tags during 2008–2010. Founders caught in the wild (n = 8) and those reared in large enclosures (n = 8) differed in movement frequency (inter-fix distance per hour) and maximum distance covered (from the release site) in the first 5 months after release: both were significantly greater in wild individuals, males moved significantly more than females, wild individuals shifted their home ranges significantly more often than captive ones, and no differences were observed between the sexes or age classes. A mixed strategy of selection of wild and captive founders has proven successful in preventing large movements in the initial stages of release yet still providing sufficient opportunity to avoid inbreeding depression. [ABSTRACT FROM PUBLISHER]

Published
2016
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