Vol 8 Num 3




The birds at Ilha Comprida beach (São Paulo State, Brazil): a multivariate approach

Edison Barbieri

Instituto de Pesca da Secretaria da Agricultura e Abastecimento do Estado de São Paulo
Instituto de Pesca da Secretaria da Agricultura e Abastecimento do Estado de São Paulo, Caixa Postal 61. C.E.P. 11990-000 Cananéia. São Paulo. Brazil. Phone 55(13) 3851-1555.
email: edisonbarbieri@yahoo.com.br

Eduardo Tavares Paes

Instituto Nacional de Pesquisas Espaciais – INPE
Instituto Nacional de Pesquisas Espaciais – INPE. Av. dos Astronautas 1758, Jd. Granja, C.E.P. 12227-010 São José dos Campos - SP, Brasil. Phone:55-12-3945 6504

keywords
Seabirds, ecology, Ilha Comprida, migration, shorebirds, sandy beaches. Multivariate analysis

publication date: 07-01-2008
Abstract
Birds were censused weekly from January 1999 to January 2001 along Ilha Comprida beach, a barrier island off São Paulo, southeastern Brazil. To evaluate the similarity in the bird’s species composition among the weekly surveys, species counts data were arranged on a data matrix with 144 weekly surveys, analyzed following a multivariate analysis protocol. We counted a total of 205,399 individuals and 52 species. Migratory birds were an important component of the avifauna (maximum N = 21,294 individuals and 14 species). The largest numbers of birds were observed during summer, when Nearctic migrants arrive. All 14 of the most common species were migrants, including Calidris  alba , Sterna  maxima , Charadrius  semipalmatus , Sterna  hirundo , Thalasseus  maximus , Pluvialis  dominica  and Calidris  fuscicollis . The most common residents were Thalasseus  s. eurrygnathus , Larus   dominicanus , Coragyps  atratus , Fregata  magnificens  and Sterna  hirundinacea . Recently, most of the peripheral area adjacent to the beach has been urbanized and rapid habitat change is progressing. In this paper, we establish a reference that will allow future comparisons to assess the impact of such urbanization on the composition of bird populations on Ilha Comprida.

how to quote this paper
The birds at Ilha Comprida beach (São Paulo State, Brazil): a multivariate approach.Biota Neotrop.  Jul/Sep 2008 vol. 8, no. 3 http://www.biotaneotropica.org.br/v8n3/en/abstract?article+bn00408032008 ISSN 1676-0603.

Cited species
check for this species in other resources Calidris  alba 
check for this species in other resources Calidris  fuscicollis 
check for this species in other resources Charadrius   semipalmatus 
check for this species in other resources Coragyps   atratus 
check for this species in other resources Fregata  magnificens 
check for this species in other resources Larus   dominicanus 
check for this species in other resources Pluvialis   dominica  
check for this species in other resources Sterna  hirundo 
check for this species in other resources Sterna  hirundinacea  
check for this species in other resources Thalasseus  maximus 
check for this species in other resources Thalasseus  eurrygnathus 



Fundação de Amparo à Pesquisa do Estado de São Paulo, Fapesp
Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq
© BIOTA NEOTROPICA, 2008