Search Results - "Tella, J.L"

Simple assessments of age and spatial population structure can aid conservation of poorly known species by Tella, J.L., Rojas, A., Carrete, M., Hiraldo, F.

“…The IUCN Red List is challenged with assessing the conservation status of species on which reliable demographic and distribution parameters are lacking. The…”
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Multi-event capture-recapture analysis reveals individual foraging specialization in a generalist species by Sanz-Aguilar, Ana, Jovani, Roger, Melián, C.J., Pradel, Roger, Tella, J.L.

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Social determinants of songbird vocal activity and implications for the persistence of small populations by Laiolo, P, Tella, J.L

“…Conspecific attraction is an important aspect of animal behaviour and several avian studies have shown that vocalizations may be used as an inadvertent cue to…”
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Conflicts between Lesser Kestrel conservation and European agricultural policies as identified by habitat use analyses by Tella, J.L, Forero, M.G, Hiraldo, F, Donazar, J.A

“…European pseudo-steppes have suffered from extensive changes in agricultural practices during the past decades with the disappearance of field margins and…”
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DNA fingerprinting reveals a low incidence of extra-pair fertilizations in the lesser kestrel by NEGRO, J.J., VILLARROEL, M., TELLA, J.L., KUHNLEIN, U., HIRALDO, F., DONAZAR, J.A., BIRD, D.M.

“…DNA fingerprinting of socially monogamous, colonially breeding lesser kestrels, Falco naumanni, revealed that three of 87 (3.4%) nestlings were illegitimate,…”
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Can interspecific competition and nest site availability explain the decrease of lesser kestrel Falco naumanni populations? by Forero, M.G., Tella, J.L., Donázar, J.A., Hiraldo, F.

“…The population decline of the lesser kestrel, a globally threatened species, has been sometimes explained on the basis of interspecific competition and lack of…”
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High host specificity of Crataerina melbae (Diptera: Hippoboscidae) in a mixed colony of birds by Tella, J.L, Gajon, A, Gortazar, C, Osacar, J.J

“…We looked for louse flies (Diptera, Hippoboscidae) in a mixed colony of 9 species of birds from 1991 to 1997. Alpine swifts (Apus melba) exhibited an unusually…”
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