Density, Habitat Selection and Breeding Success of an Insular Population of Barbary Falcon Falco Peregrinus Pelegrinoides

Ardea

Manuel Siverio¹  Airam Rodríguez⁴  Beneharo Rodríguez²  Felipe Siverio³ 

[1] 2 Los Barros 21, E-38410 Los Realejos, Tenerife, Canary Islands, Spain;1 La Malecita s/n, E-38480 Buenavista del Norte, Tenerife, Canary Islands, Spain;4 Ctra. General 20 (San Vicente), E-38410 Los Realejos, Tenerife, Canary Islands, Spain;3 Island Ecology and Evolution Research Group (IPNA, CSIC), E-38206 La Laguna, Tenerife, Canary Islands, Spain

关键词: Canary Islands;   

DOI  :  

学科分类：动物科学

来源: Nederlandse Ornithologische Unie/Netherlands Ornithological Union

【 摘 要 】

Westudieddensity,habitatselectionandreproductionofBarbaryFalconsFalcoperegrinuspelegrinoidesonTenerifeIslandduring2004and2005.Atotalof26breedingpairswerecounted,allofthemoccupyingnaturalcliffsaroundtheisland.Densityobservedwas1.27pairs/100km2,andwaspositivelycorrelatedwithcliffavailability.Meandistancebetweenneighbouringpairswas5869±3338m,rangingfrom1388–13610m;insomeareasthisvaluewasaslowas2062±673m.Tenerifestillshowspotentialforfurtherincreaseregardingtheobservationsofsinglefemalesandtheavailabilityofpotentiallysuitablebutunoccupiedcliffs.Falconsselectedtallercliffs,moreapartfromroadsandhouses,nearthecoast,withlowerpresenceofcultivatedandurbanareas,andassociatedwithothercliff-nestingspecies.Stepwisediscriminantanalysisofhabitatselectionselectedcliffheight,nearestneighbourdistanceanddistancetoroad,andcorrectlyclassified71.1%ofthecases.Productivityaveraged1.55fledgedyoung/pairandbreedingsuccesswas81.1%.Nocorrelationswereobservedbetweenhabitatfeaturesandproductivity.Sincemostterritoriesarelocatedinprotectedzonesandhumandisturbanceseemstobeabsent,specialmanagementmeasuresarenotnecessary.However,furtherstudyintothebiologyofthispopulationisrequiredforeffectiveandtimelyconservationofthisspeciesifneedbe.

【 授权许可】

Unknown