Effects of Urbanization on Breeding Bird Community Structure in Southwestern Desert Habitats

The Condor ◽  
1989 ◽  
Vol 91 (2) ◽  
pp. 416 ◽  
Author(s):  
G. Scott Mills ◽  
John B. Dunning ◽  
John M. Bates
Keyword(s):  
Community Structure ◽  
Bird Community ◽  
Breeding Bird

Heterospecific attraction affects community structure and migrant abundances in northern breeding bird communities

1997 ◽  
Vol 75 (12) ◽  
pp. 2077-2083 ◽  
Author(s):  
Mikko Mönkkönen ◽  
Pekka Helle ◽  
Gerald J. Niemi ◽  
Kent Montgomery
Keyword(s):  
Community Structure ◽  
Bird Community ◽  
Bird Communities ◽  
Positive Interactions ◽  
Breeding Bird ◽  
Parus Atricapillus ◽  
Vireo Olivaceus ◽  
Black And White ◽  
Heterospecific Attraction ◽  
Consistent Change

We experimentally tested the heterospecific attraction hypothesis by manipulating densities of resident birds (black-capped chickadee, Parus atricapillus, red-breasted nuthatch, Sitta canadensis, and white-breasted nuthatch, S. carolinensis) on 7 lake islands in northern Minnesota, U.S.A. Resident numbers were increased by winter feeding and decreased by removals using mist nets. The heterospecific attraction hypothesis states that migrants use residents as a cue to identify the best sites for breeding in a heterogeneous landscape because residents have already selected higher quality sites. The hypothesis predicts that there will be a higher overall density of migrants associated with increased resident density. Results showed that there was a consistent change in migrant bird community structure (i.e., in the relative abundance of species) in response to manipulation. This change resulted mainly from an increased density of arboreal insectivores, i.e., species that belong to the same foraging guild as residents, suggesting that food is an important factor contributing to heterospecific attraction. The red-eyed vireo, Vireo olivaceus, and black-and-white warbler, Mniotilta varia, showed the strongest positive response. No migrant species responded negatively to augmented resident density, suggesting that interspecific competition may be less important in structuring breeding bird communities in northern forests. Our results support the view that positive interactions should be considered when studying community structure.

Evaluating Riparian Restoration Success: Long-Term Responses of the Breeding Bird Community in California’s Lower Putah Creek Watershed

2018 ◽  
Vol 36 (1) ◽  
pp. 76-85 ◽  
Author(s):  
Kristen E. Dybala ◽  
Andrew Engilis ◽  
John A. Trochet ◽  
Irene E. Engilis ◽  
Melanie L. Truan
Keyword(s):  
Bird Community ◽  
Riparian Restoration ◽  
Breeding Bird ◽  
Restoration Success ◽  
Creek Watershed ◽  
Putah Creek

Bird community structure in natural and urbanized habitats along an altitudinal gradient in Pauri district (Garhwal Himalaya) of Uttarakhand state, India

Biologia ◽  
2012 ◽  
Vol 67 (4) ◽  
Author(s):  
Archana Naithani ◽  
Dinesh Bhatt
Keyword(s):  
Community Structure ◽  
Altitudinal Gradient ◽  
Diversity Index ◽  
Bird Species ◽  
Bird Community ◽  
High Elevation ◽  
Base Line ◽  
Natural Habitats ◽  
Forest Habitat ◽  
Rarefaction Analysis

AbstractIn the Indian subcontinent there is hardly any study that compares the bird community structure of urban/suburban areas with those of forest habitat. The present survey identified diverse assemblages of birds in the Pauri district at different elevations. A total of 125 bird species belonging to 40 families including two least count species (Lophura leucomelanos and Pucrasia marcolopha) were recorded during this survey in the forest and urbanized habitats of Pauri District (Garhwal Hiamalaya) of Uttarakhand state, India. The high elevation (Pauri 1600–2100 m a.s.l.), mid elevation (Srikot-Khanda 900–1300 m a.s.l.) and low elevation (Srinagar 500–900 m a.s.l.) contributed 88.8%, 63.2% and 58.4% of the total species respectively. Rarefaction analysis and Shannon diversity index showed that the high elevation forest habitat had highest bird species richness (BSR) and bird species diversity (BSD) followed by the mid and then the low elevation forests. BSR and BSD fluctuated across seasons at all elevations but not across habitat types. Present study provides a base line data about avian community composition in urbanized and natural habitats along altitudinal gradient in the study area. This information may be useful to the conservation biologists for the better management and conservation of the avifauna in the Western Himalaya, a part of one of the hot biodiversity spots of the world.

Bird community structure in native forest fragments and Acacia mangium plantations in Borneo

2018 ◽  
Vol 130 (1) ◽  
pp. 112 ◽  
Author(s):  
Alison R. Styring ◽  
Joanes Unggang ◽  
Alex Jukie ◽  
Ollince Tateh ◽  
Nyegang Megom ◽  
...  
Keyword(s):  
Community Structure ◽  
Acacia Mangium ◽  
Bird Community ◽  
Native Forest ◽  
Forest Fragments

scholarly journals Riparian Bird Community Structure in Portland, Oregon: Habitat, Urbanization, and Spatial Scale Patterns

The Condor ◽  
2003 ◽  
Vol 105 (2) ◽  
pp. 288-302 ◽  
Author(s):  
Lori A. Hennings ◽  
W. Daniel Edge
Keyword(s):  
Native Species ◽  
Forest Canopy ◽  
Urban Canopy ◽  
Canopy Cover ◽  
Bird Community ◽  
Metropolitan Region ◽  
Road Density ◽  
Breeding Bird ◽  
Bird Abundance ◽  
Neotropical Migrant

Abstract In 1999, we surveyed breeding bird and plant communities along 54 streams in the Portland, Oregon, metropolitan region to link bird community metrics with structural and spatial characteristics of urban riparian areas. Canonical correspondence analysis produced two explanatory axes relating to vegetation and road density. Total and non-native bird abundance was higher in narrow forests. Native bird abundance was greater in narrow forests surrounded by undeveloped lands; native species richness and diversity were greater in less-developed areas. Native resident and short-distance-migrant abundance was higher in narrow forests, and diversity was positively associated with developed lands. Neotropical migrant abundance, richness, and diversity were greater in open-canopied areas with fewer roads. We examined spatial relationships by regressing bird variables on satellite-derived forest canopy cover, area of undeveloped lands, and street density in a series of 50-m buffers within a 500-m radius around study sites. Non-native bird abundance decreased with increasing canopy cover within 450 m, but most other relationships were strongest at smaller scales (50–100 m). Our results suggest that increasing urban canopy cover is the most valuable land management action for conserving native breeding birds. A hierarchical scheme for Neotropical migrant conservation might include increasing forest canopy within 450 m of streams to control non-native species and cowbirds; reducing street density within a 100-m radius of streams; and conserving or planting onsite native trees and shrubs. Estructura de Comunidades Riparias de Aves en Portland, Oregon: Hábitat, Urbanización y Patrones de Escala Espacial Resumen. Censamos las comunidades de aves reproductivas y plantas a lo largo de 54 arroyos en el área metropolitana de Portland, Oregon en 1999 para conectar medidas de comunidades de aves con características estructurales y espaciales de zonas riparias urbanas. Análisis de correspondencia canónica produjeron dos ejes explicativos relacionados con la vegetación y la densidad de carreteras. La abundancia total de aves y la de aves no nativas fueron mayores en bosques estrechos. La abundancia de aves nativas fue mayor en bosques estrechos rodeados por terrenos rurales y la riqueza y diversidad de especies fueron mayores en áreas menos desarrolladas. La abundancia de residentes nativas y migratorias de corta distancia fue mayor en bosques estrechos y su diversidad estuvo asociada positivamente con terrenos desarrollados. La abundancia, riqueza y diversidad de las migratorias neotropicales fueron mayores en áreas de dosel abierto y con pocas carreteras. Examinamos las relaciones espaciales mediante regresiones entre variables de aves y la cobertura del dosel derivada de imágenes satelitales, el área de terrenos sin desarrollar y la densidad de calles en una serie de áreas de 50 m de ancho en un radio de 500 m alrededor de los sitios de estudio. La abundancia de aves no nativas disminuyó con aumentos en la cobertura del dosel hasta 450 m, pero la mayoría de las demás relaciones fueron más fuertes a escalas menores (50–100 m). Nuestros resultados sugieren que el incremento de la cobertura del dosel en áreas urbanas es la estrategia de manejo más valiosa para conservar las aves nativas que se reproducen en el área. Un esquema jerárquico para la conservación de las migratorias neotropicales podría incluir aumentar la cobertura de bosque a menos de 450 m de los arroyos para controlar a las especies no nativas y a los Molothrus, reducir la densidad de calles dentro de un radio de 100 m alrededor de los arroyos y conservar o plantar árboles y arbustos nativos.

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