Patrones de diversidad de aves a lo largo de un gradiente latitudinal de bosques ribereños del río Paraná medio, Argentina

Berduc, Alfredo; Lorenzón, Rodrigo Ezequiel; Beltzer, Adolfo H.

doi:10.1016/j.rmb.2015.04.003

Cited by 11 publications

(11 citation statements)

References 41 publications

(69 reference statements)

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“…This species had two previous records along the Uruguay River (De la Peña & Rumboll, 1998) and one in the Paraná River (Beltzer, 2006) in the Pre-Delta National Park. The presence of this species in more southerly latitudes of the province is due to the importance of the Paraná and Uruguay rivers as biological corridors, as was demonstrated by other authors (Nores et al, 2005;Berduc et al, 2015).…”

Section: Crotophaga Major (Greater Ani)supporting

confidence: 66%

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Avifaunal inventory of northern Entre Ríos, Argentina: noteworthy records and conservation prospects

Dardanelli¹,

Reales

Sarquis

2018

MACN

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Biodiversity inventories remain fundamental tools for biodiversity conservation. Neotropical biota has poor faunal inventories. In Argentina, the avifauna of the province of Entre Ríos is still not well known. Here, we present the first exhaustive bird inventory of Northern Entre Ríos. We recorded 317 bird species. Three species were new for the province of Entre Ríos, and eight were new for Northern Entre Ríos. We recorded 17 threatened species, 4 biome-restricted species and two restricted range species. The high bird diversity of Northern Entre Ríos contrasts with the lack of effective reserves to ensure the survival of endangered species. Creation of natural reserves in this area is urgent. These protected areas should have a management plan and stable park rangers assigned, to ensure the protection of the avian diversity of Northern Entre Ríos.Resumen: Inventario de avifauna del norte de Entre Ríos, Argentina: registros notables y perspectivas de conservación. Los inventarios de Biodiversidad siguen siendo herramientas fundamentales para la conservación de la biodiversidad. La biota neotropical posee inventarios incompletos de fauna. En Argentina, la avifauna de la provincia de Entre Ríos permanece poco estudiada. Presentamos el primer inventario exhaustivo de aves para el norte de Entre Ríos. Registramos 317 especies de aves, tres son nuevas para la provincia de Entre Ríos y ocho son nuevas para el norte de Entre Ríos. Diecisiete especies están consideradas amenazadas, 4 son especies restringidas a un bioma y dos especies son de rango restringido. La alta diversidad de aves del norte de Entre Ríos contrasta con la falta de reservas efectivas que puedan asegurar la supervivencia de las especies amenazadas. La creación de reservas naturales en esta región es urgente. Estas áreas protegidas deberían tener planes de manejo y guardaparques estables asignados, para asegurar la protección de la diversidad de aves del norte de Entre Ríos.

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Section: Crotophaga Major (Greater Ani)supporting

confidence: 66%

“…The records of this species are associated with the Paraná River and secondary streams. It is probable that P. guainumbi is a bird that uses the rivers as corridors, as proposed by other authors for birds at Uruguay and Paraná rivers (Nores et al, 2005;Berduc et al, 2015). This species is listed as Near-threatened…”

Section: Crotophaga Major (Greater Ani)mentioning

confidence: 76%

Avifaunal inventory of northern Entre Ríos, Argentina: noteworthy records and conservation prospects

Dardanelli¹,

Reales

Sarquis

2018

MACN

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“…Previous research has been focusing on the impacts of local habitat characteristics in riparian regions on species diversity (Liang et al, 2018;Martin, McIntyre, Catterall, & Possingham, 2006), with many studies showing that bird richness was positively related to the width of riparian habitats (Hillman et al, 2016;Nimmo, Haslem, Radford, Hall, & Bennett, 2016;Shirley & Smith, 2005;Zimbres, Peres, & Machado, 2017) and the highly heterogeneous vegetation structure (Farley, Ellis, Stuart, & Scott, 1994;Gomez, Rivera, Politi, & Ruggera, 2016;Lynn et al, 1998), in which trees and/or woods are usually the most important. Complexity of landscape contexts in riparian strips attracts more bird species (Berduc, Lorenzon, & Beltzer, 2015;Nimmo et al, 2016;Terraube et al, 2016;Woinarski et al, 2000), whereas livestock grazing has negative effects on bird species richness (Ammon & Stacey, 1997;Dobkin, Rich, & Pyle, 1998;Jansen & Robertson, 2001;Martin & Possingham, 2005;Nelson, Gray, & Evans, 2011). It is also known that bird species richness is strongly associated with climate factors, such as precipitation and temperature (Li et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Beta diversity is composed of two processes: turnover and nestedness (Baselga, 2007(Baselga, , 2010Harrison, Ross, & Lawton, 1992). Many studies examined the contribution of turnover and nestedness to beta diversity process in mountain landscapes (Blake & Loiselle, 2000;Jankowski, Ciecka, Meyer, & Rabenold, 2009;Jankowski et al, 2013;Patterson, Stotz, Solari, Fitzpatrick, & Pacheco, 1998), on islands (Si, Baselga, & Ding, 2015) and in riparian landscapes (Berduc et al, 2015). Many studies examined the contribution of turnover and nestedness to beta diversity process in mountain landscapes (Blake & Loiselle, 2000;Jankowski, Ciecka, Meyer, & Rabenold, 2009;Jankowski et al, 2013;Patterson, Stotz, Solari, Fitzpatrick, & Pacheco, 1998), on islands (Si, Baselga, & Ding, 2015) and in riparian landscapes (Berduc et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Habitats with high beta diversity, especially high turnover component are often considered a high priority for conservation value. Many studies examined the contribution of turnover and nestedness to beta diversity process in mountain landscapes (Blake & Loiselle, 2000;Jankowski, Ciecka, Meyer, & Rabenold, 2009;Jankowski et al, 2013;Patterson, Stotz, Solari, Fitzpatrick, & Pacheco, 1998), on islands (Si, Baselga, & Ding, 2015) and in riparian landscapes (Berduc et al, 2015). It is reported that the more heterogeneous the environment, the higher beta diversity is.…”

Section: Introductionmentioning

confidence: 99%

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Bird species diversity in Altai riparian landscapes: Wood cover plays a key role for avian abundance

Sun

Chu

et al. 2019

Ecology and Evolution

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Aims We aim to understand bird richness and variation in species composition (beta diversity) along a 630 km riparian landscape in the Altai Mountains of China and to test whether vegetation cover is the main explanation of species diversity. Methods We selected nine regions along a gradient of natural vegetation change. Bird surveys and environmental measurements were conducted at 10 points in each of the nine regions. We collected environmental land cover variables such as wood cover (area proportion of trees and shrubs with saplings in habitats; here trees are woody plant with a single trunk and higher than 3 m, shrubs and saplings are distinguished from trees by their multiple trunks and shorter height) and tree cover, and two climate factors which were Annual Mean Temperature (AMT) and Annual Precipitation (AP). We used Liner Regression Models to explore the correlation between bird species richness and environmental variables. We used Sørensen's dissimilarity index to measure birds' beta diversity, and quantified the contribution of environmental variables to this pattern using a Canonical Correspondence Analysis (CCA). Results Wood cover was the strongest predictor of overall, insectivore, and omnivore bird richness. Regions with wood cover contained more bird species. Beta diversity was overall high in the studied regions, and turnover components occupied a major part of beta diversity. Wood cover and AP were significant predictors of bird species composition explaining 33.24% of bird beta diversity together. Conclusions Wood vegetation including trees, shrubs, and saplings, rather than only trees, contains high bird richness. High beta diversity suggests that expansion of the existing nature reserves is needed in the riparian landscapes to capture the variation in bird species composition. Thus all wood cover in the overall riparian landscapes of Altai Mountains should be protected from farming and grazing to improve bird conservation outcomes. OPEN RESEARCH BADGES This article has earned an Open Data Badge for making publicly available the digitally‐shareable data necessary to reproduce the reported results. The data is available at Raw bird data in this study: http://osf.io/78qcw; Raw environment data: http://osf.io/qr5cw.

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Bird species that occupy river edge in continuous forest tend to be less sensitive to forest fragmentation

Lindsey

Bochio

Anjos

2019

Rev. Bras. Ornitol.

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Along a distance gradient from a given river, two types of habitat can be recognized: natural river edge and forest interior, each one with its own vegetation characteristics and dynamics. In a continuous area of the Brazilian Atlantic Forest, we investigated (1) if bird communities are different between a riverbank of a small stream and an inland forest habitat; (2) if the species of the river edge habitat are the ones that persist in the most in forest fragments after deforestation of a continuous forest; (3) if the river edge habitat species are those that are less sensitive to forest fragmentation. It is expected that there are differences in the bird communities and the occupancy of some species between the two habitats. We allocated 16 sampling points in each of the habitats and sampled the birds by point counts with a short radius of 30 m. Results suggest that there is a significant difference between the composition of the bird communities of the river edge and forest interior habitats, although the species richness is similar. Six species were more likely to occupy the river edge and 14 species had a greater probability of occupancy in the forest interior. Species associated with the river edge habitat (15 species) tend not to be sensitive to forest fragmentation (12 species). In this study, we demonstrated that river-border species of continuous forest areas form a significant part of the bird communities that persist in small forest fragments, with intense edge effect. This shows that not all forest edge species are the result of the colonization from open areas. Congruently, species that occupy the most distant areas from the river vegetation in a continuous forest are those more sensitive to forest fragmentation. KEYWORDS: Atlantic Rainforest, bird sensitivity, forest interior, natural edge, probability of occupancy. tree species; also, it is common to have the fall of trees and consequently the creation of clearings that allow the occupation of bamboo species (Bianchini et al. 2001, Anjos et al. 2007). This lowland riparian environment constitutes a transition between the river and the associated upland forest, marking a natural border or ecotone boundary. A forest ecotone is a consequence of the meeting of distinct natural plant communities, which, in turn, influences the diversity of wild animals across the landscape, dependent on distance from a rivers' edge and the characteristic transition in topography, plant community, hydrological regimes, and soil types (Naiman et al. 1993, Shirley 2005). Considering several taxonomic groups, some studies suggest greater species richness in riparian environments compared to distinct forest (Naiman et al. 1993), others found greater richness in non-riparian environments (McGaragal & McComb 1992, Peres 1997) and some found no difference between these two habitat types (Gomez & Anthony 1998, Rykken et al. 2007). On birds, several studies indicated the great importance of the riparian environment (natural river edges) as a uniquely sustaining habitat with relat...

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Patrones de diversidad de aves a lo largo de un gradiente latitudinal de bosques ribereños del río Paraná medio, Argentina

Cited by 11 publications

References 41 publications

Avifaunal inventory of northern Entre Ríos, Argentina: noteworthy records and conservation prospects

Avifaunal inventory of northern Entre Ríos, Argentina: noteworthy records and conservation prospects

Bird species diversity in Altai riparian landscapes: Wood cover plays a key role for avian abundance

Bird species that occupy river edge in continuous forest tend to be less sensitive to forest fragmentation

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