Cape Gannet (Morus capensis) Science Article 4 abstract Cape gannets (Morus capensis) breed at six colonies in Namibia and South Africa. Population size averaged about 250 000 pairs overthe period 1956/1957-1968/1969 and about 150 000 pairs from 1978/1979 to 2005/2006. Over the whole 50-y period, numbers atthe three Namibian colonies fell by 85-98%, with greater […]
Cape Gannet Morus capensis movements in Africa
Cape Gannet (Morus capensis) Science Article 3 abstract Cape Gannets Morus capensis breed at only six coastal islandsoff Namibia and South Africa (Table 1, Fig. 1). They are thethird most-ringed birds in southern Africa, with some 140 000ringed since 1950 (Oschadleus & Underhill 1999). Most ringingrecords since 1975 have been captured electronically. Oschadleus, H.D. & […]
FIRST RECORD OF THE CAPE GANNET MORUS CAPENSIS FOR PERUAND THE PACIFIC OCEAN
Cape Gannet (Morus capensis) Science Article 1 abstract The Cape Gannet Morus capensis is an endemic seabird to southern Africa, breeding on offshore islands off Namibia and South Africa (Harrison 1985). After breeding, dispersal takes place as far as Mozambique, rarely Tanzania, on the east coast of Africa, and to the Gulf of Guinea on […]
Parasitic egg laying in canvasbacks: frequency, success, and individual behavior.
Canvasback (Aythya valisineria) Science Article 1 abstract Time-lapse photography and frequent nest checks conducted at Canvasback (Aythya valisineria) nests revealed a high frequency of intraspecific parasitic egg laying. At least 36% of completed Canvasback clutches were parasitized by other Canvasbacks, and at least 9.7% of all Canvasback eggs were laid parasitically during the three-year study. […]
Evolution of the major histocompatibility complex class I genes in Serinus canaria from the Canary Islands is different from that of Asian and African continental Serinus species
Canary (Serinus canaria) Science Article 1 abstract The radiation of canaries (genus Serinus) occurred in Africa and Eurasia during the Miocene Epoch (9 million years ago) according to maximum parsimony (MP), neighbor-joining (NJ), maximum likelihood (ML) and Bayesian methodologies. Serinus canaria (wild canary) and S. serinus (European serin) together form one of the several polytomies […]
Ecological traits influence the current distribution and range of an island endemic bird
Canary Islands Stonechat (Saxicola dacotiae) Science Article 4 abstract The aim of this paper is to investigate the causes of the current restricteddistribution of a narrow-range endemic bird species, the Canary Islandsstonechat, Saxicola dacotiae. Juan Carlos Illera et al, Journal of Biogeography (J. Biogeogr.) (2006) 33, 1192-1201 Download article download full text (pdf)
DETERMINACION DEL SEXO Y EDADEN LA TARABILLA CANARIA SAXICOLA DACOTIaeMEDIANTE EL ESTUDIO DE LA MUDA
Canary Islands Stonechat (Saxicola dacotiae) Science Article 3 abstract Sexing and ageing of the Canary Islands Stonechat Saxicola dacotiae by moult. The aim ofthis study is to offer data for sexing juveniles and ageing Canary Islands Stonechats Saxicola dacotiae, an endemic and endangered bird, using data on wing measurements, moult, wing-formula and the inside colour […]
Divorce in the Canary Islands Stonechat (Saxicola dacotiae)
Canary Islands Stonechat (Saxicola dacotiae) Science Article 1 abstract I report the first case of divorce for the Canary Islands Stonechat (Saxicola dacotiae), anendemic bird species of the semiarid island of Fuerteventura (Canary Islands, Spain). I studied 72 pairs during three breeding seasons (2000-2001, 2001-2002, and 2002-2003). Juan Carlos Illera, Wilson Bulletin 117(3):317-319, 2005 Download […]
Site fidelity in the Canary Islands stonechat Saxicoladacotiae in relation to spatial and temporalpatterns of habitat suitability
Canary Islands Stonechat (Saxicola dacotiae) Science Article 2 abstract We investigate the degree of territory faithfulness of the Canary Islands stonechat Saxicola dacotiae, an endemic bird species of the semi-arid island of Fuerteventura (Canary Islands, Spain), and the spatial and temporal variability of habitat traits related to its breeding success over its whole distribution range. […]
Seasonal Enumeration of Fecal Coliform Bacteria from the Feces of Ring-Billed Gulls (Larus delawarensis) and Canada Geese (Branta canadensis)
Canada Goose (Branta canadensis) Science Article 1 abstract Water suppliers have often implicated roosting birds for fecal contamination of their surface waters. Geese and gulls have been the primary targets of this blame although literature documenting the fecal coliform content of these birds is quite limited. To determine the actual fecal coliform concentrations of these […]