scholarly journals The phylogenetic and functional diversity of regional breeding bird assemblages is reduced and constricted through urbanization

2018 ◽  
Vol 24 (7) ◽  
pp. 928-938 ◽  
Author(s):  
Frank A. La Sorte ◽  
Christopher A. Lepczyk ◽  
Myla F. J. Aronson ◽  
Mark A. Goddard ◽  
Marcus Hedblom ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Breeding Bird ◽  
Bird Assemblages

Breeding bird assemblages of eastern Mediterranean shrublands: composition, organisation and patterns of diversity

2005 ◽  
Vol 147 (3) ◽  
pp. 419-427 ◽  
Author(s):  
Nikos Katsimanis ◽  
Michalis Dretakis ◽  
Triantaphyllos Akriotis ◽  
Moysis Mylonas
Keyword(s):  
Eastern Mediterranean ◽  
Breeding Bird ◽  
Mediterranean Shrublands ◽  
Bird Assemblages

scholarly journals Effects of growth stage and tree species composition on breeding bird assemblages of plantation forests

Bird Study ◽  
2006 ◽  
Vol 53 (3) ◽  
pp. 225-236 ◽  
Author(s):  
Mark W. Wilson ◽  
Josephine Pithon ◽  
Tom Gittings ◽  
Tom C. Kelly ◽  
Paul S. Giller ◽  
...  
Keyword(s):  
Species Composition ◽  
Tree Species ◽  
Growth Stage ◽  
Breeding Bird ◽  
Tree Species Composition ◽  
Bird Assemblages ◽  
Plantation Forests

Breeding Bird Assemblages in the Rio Grande Wild and Scenic River Recreation Area, New Mexico

1989 ◽  
Vol 34 (4) ◽  
pp. 487 ◽  
Author(s):  
Dale W. Stahlecker ◽  
Patricia L. Kennedy ◽  
Anne C. Cully ◽  
Charles B. Kuykendall
Keyword(s):  
New Mexico ◽  
Rio Grande ◽  
Breeding Bird ◽  
Bird Assemblages ◽  
Recreation Area ◽  
River Recreation

scholarly journals Composition, richness and nestedness of gallery forest bird assemblages in an Amazonian savanna landscape: lessons for conservation

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12529
Author(s):  
Joandro Pandilha ◽  
José Júlio de Toledo ◽  
Luis Cláudio Fernandes Barbosa ◽  
William Douglas Carvalho ◽  
Jackson Cleiton de Sousa ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Human Activities ◽  
Phylogenetic Diversity ◽  
Species Assemblages ◽  
Gallery Forest ◽  
Forest Species ◽  
Habitat Specificity ◽  
Bird Assemblages ◽  
Forest Bird ◽  
Gallery Forests

Gallery forests are important to the maintenance of a substantial portion of the biodiversity in neotropical savanna regions, but management guidelines specific to this forest type are limited. Here, we use birds as study group to assess if: (1) functional traits can predict the abundance and occupancy of forest species within a savanna landscape, (2) habitat structures influence the taxonomic, functional, and phylogenetic diversity of forest assemblages, and (3) less diverse gallery forest assemblages are a nested subset of more diverse assemblages living near continuous forests. Then, we propose strategies on how gallery forests can be managed to maintain their species assemblages amidst the fast expansion of human activities across tropical savanna landscapes. We studied 26 sites of gallery forests in an Amazonian savanna landscape and found that: (1) habitat specificity is the only functional trait that predicts species abundance and occupancy across a landscape; (2) phylogenetic diversity is negatively correlated with understory foliage density; (3) the percentage of forests and savannas around sites is positively correlated with both phylogenetic and functional diversity; (4) increasing human activities around gallery forest negatively influences taxonomic and functional diversity; and (5) forest bird assemblages are not distributed at random across the landscape but show a nested pattern caused by selective colonization mediated by habitat filtering. Our combined findings have three implications for the design of conservation strategies for gallery forest bird assemblages. First, maintaining the connectivity between gallery forests and adjacent continuous forests is essential because gallery forest bird assemblages are derived from continuous forest species assemblages. Second, because most species use the savanna matrix to move across the landscape, effectively managing the savanna matrices where gallery forests are embedded is as important to maintaining viable populations of forest bird species as managing the gallery forest themselves. Third, in savanna landscapes planned to be used for agriculture production, protecting gallery forests alone is not enough. Instead, gallery forests should be protected with surrounding savanna buffers to avoid the detrimental effects (edge effects and isolation) of human activities on their biodiversity.

Relations between body size, abundance and taxonomy of birds wintering in Britain and Ireland

1994 ◽  
Vol 343 (1304) ◽  
pp. 135-144 ◽  
Keyword(s):  
Body Size ◽  
The Novel ◽  
Breeding Bird ◽  
Bird Abundance ◽  
Bird Assemblages ◽  
Colonizing Species ◽  
Species Abundances ◽  
Bird Fauna ◽  
Bird Taxonomy ◽  
Taxonomic Isolation

We examine the relation between body size, abundance, and taxonomy in the wintering bird assemblages in Britain and Ireland. The regression slope of abundance on body size across species in both assemblages is not significantly different from that predicted by an ‘energetic equivalence rule’, but the proportion of the variance in abundance explained by body size is very low. Previous work on breeding bird assemblages has found the novel relation that the correlation between size and abundance across species within a tribe is itself positively correlated with the degree of taxonomic isolation of the tribe from other tribes in the bird fauna. We show that the same relation holds within bird tribes in the two wintering assemblages. Furthermore, evidence for this relation is found by using two different measures of bird abundance, despite these two abundance measures showing very different correlations with body size across species. Although these patterns in the data are consistent, some are not formally statistically significant ( p = 0.089 or greater). Excluding coastal, stocked, feral and recently colonizing species increased the significance of time since origin of a tribe on species abundances. We conclude that the relation between size and abundance in bird tribes is somehow related to bird taxonomy. While acknowledging the unlikely nature of such an effect, we tentatively propose hypotheses for two mechanisms that could produce the observed patterns.

Development of a Grassland Integrity Index Based on Breeding Bird Assemblages

2006 ◽  
Vol 118 (1-3) ◽  
pp. 125-145 ◽  
Author(s):  
Bryan R. Coppedge ◽  
David M. Engle ◽  
Ronald E. Masters ◽  
Mark S. Gregory
Keyword(s):  
Breeding Bird ◽  
Bird Assemblages ◽  
Integrity Index

Does pedestrian traffic affect the composition of ?bush bird? assemblages?

2008 ◽  
Vol 14 (1) ◽  
pp. 54
Author(s):  
Megan Price ◽  
Alan Lill
Keyword(s):  
National Park ◽  
Environmental Damage ◽  
Short Term ◽  
Breeding Bird ◽  
Assemblage Composition ◽  
Bird Assemblages ◽  
Point Counts ◽  
Bird Watching ◽  
Large Numbers ◽  
Pedestrian Traffic

Outdoor recreational activities (e.g., bushwalking and bird-watching) can increase participants? environmental awareness, but can also cause environmental damage and impact negatively on wildlife if conducted irresponsibly and/or in large numbers. A field experiment with a before-after-control-impact design conducted in Wyperfeld National Park, Victoria determined whether simulated bushwalking by researchers over a 4-week period had an immediate impact on the composition of breeding bird assemblages on ten 1-ha mallee plots. Birds were surveyed with point counts preand post-intrusion. Species richness, diversity and composition of bird assemblages were unaffected by the pedestrian traffic regime imposed. Results suggest that normal pedestrian traffic in spring and summer may not influence ?bush bird? assemblage composition very markedly in the short-term in Victorian parks. However, the birds could have responded to intrusion, but less dramatically than by leaving the plots. That bushwalking and allied activities may have other adverse effects on the behaviour and physiology of Australian ?bush birds? still needs to be investigated.

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