Mixed-species bird flocks from Brazilian Atlantic forest: the effects of forest fragmentation and seasonality on their size, richness and stability

Maldonado‐Coelho, Marcos; Marini, Miguel Ângelo

doi:10.1016/s0006-3207(03)00169-1

Cited by 102 publications

(86 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several other studies have suggested that dependencies on nuclear species in flocks may lead to flock breakdown in areas if nuclear species are absent [20,22,24,27], but this is the first study to statistically compare species' associations with different leaders and demonstrate that those leaders prefer different land uses. Our study measures associations observed in nature, and we do not know to what extent such associations represent dependencies.…”

Section: Discussionmentioning

confidence: 87%

“…Second, flocking species may be dependent on other species in flocks, especially on nuclear species [13]. If nuclear species respond poorly to disturbance, this could lead to attendant species also having low resilience [18,20,22,24,27]. However, if nuclear species do well in disturbed areas, attendants could have high resilience to disturbance; hence, this effect could either aggravate or mitigate the effect of land use, depending on the nuclear species involved.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Does mixed-species flocking influence how birds respond to a gradient of land-use intensity?

et al. 2015

View full text Add to dashboard Cite

Conservation biology is increasingly concerned with preserving interactions among species such as mutualisms in landscapes facing anthropogenic change. We investigated how one kind of mutualism, mixed-species bird flocks, influences the way in which birds respond to different habitat types of varying land-use intensity. We use data from a well-replicated, large-scale study in Sri Lanka and the Western Ghats of India, in which flocks were observed inside forest reserves, in 'buffer zones' of degraded forest or timber plantations, and in areas of intensive agriculture. We find flocks affected the responses of birds in three ways: (i) species with high propensity to flock were more sensitive to land use; (ii) different flock types, dominated by different flock leaders, varied in their sensitivity to land use and because following species have distinct preferences for leaders, this can have a cascading effect on followers' habitat selection; and (iii) those forest-interior species that remain outside of forests were found more inside flocks than would be expected by chance, as they may use flocks more in suboptimal habitat. We conclude that designing policies to protect flocks and their leading species may be an effective way to conserve multiple bird species in mixed forest and agricultural landscapes.

show abstract

Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Does mixed-species flocking influence how birds respond to a gradient of land-use intensity?

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Belton (1985Belton ( , 1994 noted that the absence of species such as Swainson's Flycatcher on the Mostardas Peninsula was probably because of the absence of suitable woodland habitat. In fragmented woodland habitat there may be a loss of mixedspecies flocks, as has been reported in the Atlantic Forest of Brazil (Maldonado-Coelho and Marini 2003), and given its association with such flocks, Swainson's Flycatcher may be particularly scarce in fragmented woodland.…”

Section: Mixed-species Flocksmentioning

confidence: 83%

Observations of the under-described avifauna of the Mostardas Peninsula, Rio Grande do Sul, Brazil

Harrison¹,

Whitehouse²,

Madureira³

2013

View full text Add to dashboard Cite

The Mostardas Peninsula on the east coast of Rio Grande do Sul state, Southern Brazil is important for migratory shorebirds that depend upon the wetlands in the Lagoa do Peixe National Park. However, previous surveys have suggested that the Peninsula is bereft of terrestrial birds relative to similar habitat in Rio Grande do Sul. We used rapid assessment methods to evaluate terrestrial bird diversity and note observations of migratory birds at the western margin of Lagoa do Peixe National Park between 11 February 2007 and 25 March 2007. We recorded fourteen species not previously reported for this area, including several new breeding records, and detail the occurrence of mixed-species foraging flocks in fragmented woodland. We discuss the reasons for the discrepancy between our observations of the terrestrial avifauna and previous reports, and the possibility that the Mostardas Peninsula is a passerine migratory route that remains poorly documented.

show abstract

“…The first is fragmentation (Stouffer and Bierregaard 1995;Fernández-Juricic 2000, 2002Marini 2000, 2004;Tellería et al 2001;Van Houtan et al 2006;Sridhar and Sankar 2008;Cordeiro et al 2014;Mokross et al 2014). The general result of this literature is that flock qualities (size in individuals, species richness, encounter rate and even network characteristics; see Mokross et al 2014 about networks) decrease as fragmentation increases, with fragments below 10 ha being especially effected (Maldonado-Coelho and Marini 2004;Mokross et al 2014). The second gradient is land-use intensity, including the effects of selective logging (Thiollay 1992(Thiollay , 1999b, various kinds of agriculture or agroforestry (Sidhu et al 2010;Zhang et al 2013;Goodale et al 2014;McDermott and Rodewald 2014;Colorado and Rodewald, in press), livestock grazing and firewood/ charcoal collection (Knowlton and Graham 2011), and urbanization (Lee et al 2005).…”

Section: Empirical Studies Of How Flocks Respond To Anthropogenic Dismentioning

confidence: 99%

The structure of mixed-species bird flocks, and their response to anthropogenic disturbance, with special reference to East Asia

Goodale

Ding

Liu³

et al. 2015

Avian Res

View full text Add to dashboard Cite

Mixed-species flocks of birds are distributed world-wide and can be especially dominant in temperate forests during the non-breeding season and in tropical rainforests year-round. We review from a community ecology perspective what is known about the structure and organization of flocks, emphasizing that flocking species tend to be those particularly vulnerable to predation, and flocks tend to be led by species that are able to act as sources of information about predators for other species. Studies on how flocks respond to fragmentation and land-use intensification continue to accumulate, but the question of whether the flock phenomenon makes species more vulnerable to anthropogenic change remains unclear. We review the literature on flocks in East Asia and demonstrate there is a good foundation of knowledge on which to build. We then outline potentially fruitful future directions, focusing on studies that can investigate how dependent species are on each other in flocks, and how such interdependencies might affect avian habitat selection in the different types of human-modified environments of this region.

show abstract

Mixed-species bird flocks from Brazilian Atlantic forest: the effects of forest fragmentation and seasonality on their size, richness and stability

Cited by 102 publications

References 21 publications

Does mixed-species flocking influence how birds respond to a gradient of land-use intensity?

Does mixed-species flocking influence how birds respond to a gradient of land-use intensity?

Observations of the under-described avifauna of the Mostardas Peninsula, Rio Grande do Sul, Brazil

The structure of mixed-species bird flocks, and their response to anthropogenic disturbance, with special reference to East Asia

Contact Info

Product

Resources

About