The importance of various stages of succession in preservation of biodiversity among riparian birds in northern Iran

Roshan, Zahra Sepehri; Anushiravani, Sina; Karimi, Soroor; Moradi, Hossein

doi:10.1007/s10661-017-5778-9

Cited by 6 publications

(3 citation statements)

References 43 publications

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“…Insectivorous species were mostly recorded in the intermediate and advanced stages of succession. This reinforces the proposal that insectivorous are sensitive to human impacts (Lohr et al 2002, Roshan et al 2017, since they were less common in the most impacted area (Area 1). The granivorous birds were more common in the initial stage of succession, possibly due to the presence of large open areas with grass cover, which provide a high amount of seeds (Roshan et al 2017).…”

Section: Discussionsupporting

confidence: 86%

“…This reinforces the proposal that insectivorous are sensitive to human impacts (Lohr et al 2002, Roshan et al 2017, since they were less common in the most impacted area (Area 1). The granivorous birds were more common in the initial stage of succession, possibly due to the presence of large open areas with grass cover, which provide a high amount of seeds (Roshan et al 2017). The detritivorous species were only found in Area 1, represented by Coragyps atratus and Cathartes aura, because they do not inhabit forest areas exclusively and do not require them for survival (Belton 2004).…”

Section: Discussionsupporting

confidence: 86%

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Bird Fauna in Secondary Forest Stages: A Study in a Southern Brazilian Protected Area

et al. 2019

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Environmental changes resulting from forest succession process may lead to changes in the abundance and composition of species. In each successional stage, faunal composition will depend on the structure of the habitats and the ecological requirements of each species. The effects seem to be more evident in small isolated forest fragments. In this study we recorded bird species composition and richness at different stages of secondary forest in a protected area located in a highly-fragmented region in southern Brazil. We predicted that bird species composition and richness will change according to the secondary forest stage, and will be affected by the ecological requirements of species. The study was carried out in the Mata do Rio Uruguai Teixeira Soares Municipal Park (TSP), in the northern part of the state of Rio Grande do Sul, Brazil. The park is the largest protected area in the region, with 423 ha. Representative areas of the three successional stages of secondary forest within TSP were selected, and the bird species in each area were recorded using the counting point sampling method. A total of 145 bird species were recorded in the three areas. There were differences in species composition between the areas, indicating that the structure of the bird community is directly linked to successional stages. This relationship is improved by differences in the number of birds with certain ecological traits between the areas. The size, connectivity of the forest fragments and the availability of habitats may be affecting the distribution of the avifauna in the park. Changes in the landscape may promote a restructuring of avifaunal communities, where species with certain ecological traits can be favored or excluded. The TSP, although relatively small, is important for the maintenance of bird species because it is a rare, well-preserved fragmented of the deciduous seasonal forest in the region.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 86%

Bird Fauna in Secondary Forest Stages: A Study in a Southern Brazilian Protected Area

et al. 2019

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“…In contrast, riparian bird species richness increased with willow, shrub, and herbaceous cover, characteristics associated with early successional riparian vegetation, in the Sierra Nevada mountains of northern California (Cole et al 2019). Bird abundance and diversity also tended to be higher in early successional riparian vegetation than in mature and urban riparian vegetation in the Ziarat watershed in Iran (Roshan et al 2017). Collectively, these studies suggest that the relationship between bird species richness and vegetation succession in riparian habitats is difficult to generalize and may be dependent on the specific riparian systems and bird communities involved.…”

Section: Discussionmentioning

confidence: 89%

Vegetation associations of riparian birds in successional woodlands along the regulated Missouri River

Merkord,

Rastandeh,

Benson

et al. 2023

ACE

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River regulation by dams on the Missouri River has modified riparian forest successional patterns, with decreases in early and increases in later seral stages and higher occurrence of invasive tree species, including Russian olive (Elaeagnus angustifolia) and eastern red cedar (Juniperus virginiana). The effects of these altered successional trajectories on bird biodiversity are difficult to quantify because of limited data on bird-habitat associations. We surveyed riparian shrubland and forest bird species across a gradient of riparian forest ages along two segments of the regulated Missouri River in South Dakota and Nebraska, USA and explored relationships between bird abundance and patch-and landscape-scale vegetation characteristics for 46 bird species. Predicted abundances at sites assigned to five vegetation classes, estimated from Bayesian binomial N-mixture models, identified 11 early successional bird species and 19 forest bird species. Abundances of early successional bird species were similar at cottonwood-willow sites and Russian olive sites and were positively correlated with cottonwood (Populus deltoides) importance values for only one species, Willow Flycatcher (Empidonax traillii). Abundances of forest bird species were similar at sites in the three forest vegetation classes, although Ovenbird (Seiurus aurocapilla) and Baltimore Oriole (Icterus galbula) showed some affinity for mid-or late successional cottonwood sites over late-successional non-cottonwood sites. Abundances of three forest species, including Baltimore Oriole, were positively correlated with cottonwood or negatively correlated with eastern red cedar importance values. Fifteen species were positively correlated with shrubland land cover, whereas 21 species were positively correlated with forest land cover. For most bird species, correlations were strongest with land cover within a 200-m buffer compared to 400 or 1200 m. These data suggest that the trends in riparian forest change due to river regulation along the middle Missouri River may produce a mix of positive and negative effects on riparian bird species. While management plans to promote regeneration of early successional cottonwood-willow stands are likely to benefit conservation of early successional bird species, Russian olive may also provide suitable bird habitat for the majority those species. Associations végétales des oiseaux riverains dans les peuplements successionnels le long de la rivière Missouri

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Does dam construction increase the biotic homogenization of riparian vegetation along a regulated river?

Li,

Cao,

Pattison

et al. 2024

River Research & Apps

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Dam construction in natural rivers alters the intensity and frequency of water level fluctuations in reservoirs and their downstream river reaches, leading to the biotic homogenization of riparian communities. Although the intensity of dam‐induced water level fluctuations is often described qualitatively, quantitative analysis of its effects on riparian vegetation remains inadequate. This study compared riparian species dissimilarity between the natural Chishui River (as a control) and the regulated Wujiang River (with cascade reservoirs) to assess the level of biotic homogenization under different regulation types and in zones with different riverbank characteristics using the Bray–Curtis dissimilarity index. The reservoirs along the Wujiang River were classified into four different regulation types according to the water retention time, which were daily (0–7 days), weekly (7–30 days), seasonally (30–90 days), and yearly (>365 days). Results showed significant species dissimilarity in riparian vegetation along the Wujiang River compared to that along the Chishui River in the inundation, transitional, and unflooded zones. Furthermore, the species composition and dissimilarity patterns differed in the reservoirs and downstream rivers of the cascade dams in terms of regulation type and zone. For different regulation types, there was high species dissimilarity in both the upstream and downstream inundation zone of the daily reservoirs, while species dissimilarity was lower in both upstream and downstream of the yearly reservoir (Bray–Curtis index <0.5). This study provides a quantitative measure of how dam construction perturbs riparian vegetation communities, emphasizing the importance of the balance between the riparian ecosystem conservation and the economic demands of dam construction.

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The importance of various stages of succession in preservation of biodiversity among riparian birds in northern Iran

Cited by 6 publications

References 43 publications

Bird Fauna in Secondary Forest Stages: A Study in a Southern Brazilian Protected Area

Bird Fauna in Secondary Forest Stages: A Study in a Southern Brazilian Protected Area

Vegetation associations of riparian birds in successional woodlands along the regulated Missouri River

Does dam construction increase the biotic homogenization of riparian vegetation along a regulated river?

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