The importance of riparian forest for the maintenance of bird species richness in an Atlantic Forest remnant, southern Brazil

We compared the composition and guild structure of bird communities of riparian and upland forest in an Atlantic forest reserve, the Godoy State Park (GP), in northern Paraná State, southern Brazil. Unlimited distance point counts were sampled monthly from September-December 2001, along four trails. Two trails in upland forest (TA and TB) were parallel to each other and about 300 m apart. Two trails in riparian forest (TC and TD) were along the Apertados River, about 100 m away from the river. A total of 145 species were recorded: 81 species were recorded in both upland and riparian forests, 19 species were recorded only in upland forest and 45 species were recorded exclusively in riparian forest. Among the 81 species occurring in both forest types, 18 species had significantly higher numbers of contacts in the riparian forest while only 8 species had significantly higher numbers of contacts in the upland forest. Taking into account the contacts numbers of the species the large frugivores guild was closely associated to the upland forest, while bamboo and vine-tangles insectivore, canopy insectivores, edge omnivores, ground omnivore and midstory insectivores were those more closely related to the riparian forest.

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Overlap in avian communities produces unimodal richness peaks on Bornean mountains

Journal of Tropical Ecology ◽

10.1017/s0266467418000081 ◽

2018 ◽

Vol 34 (2) ◽

pp. 75-92 ◽

Cited By ~ 2

Author(s):

Ryan C. Burner ◽

Alison R. Styring ◽

Chandradewana Boer ◽

Frederick H. Sheldon

Keyword(s):

Species Richness ◽

Bird Species ◽

Sufficient Evidence ◽

Altitudinal Distribution ◽

Bird Species Richness ◽

Point Counts ◽

Habitat Gradient ◽

Quantitative Analyses ◽

Meta Analyses ◽

Replicated Systems

Abstract:Altitudinal gradients provide tractable, replicated systems in which to study changes in species richness and community composition over relatively short distances. Previously, richness was often assumed to follow a monotonic decline with altitude, but recent meta-analyses show that more complex patterns, including mid-altitude richness peaks, are also prevalent in birds. In this study, we used point counts to survey birds at multiple altitudes on three mountains on the island of Borneo in Sundaland, an area for which quantitative analyses of avian altitudinal distribution are unavailable. In total we conducted 1088 point counts and collected associated habitat data at 527 locations to estimate species richness by altitude on Mt Mulu (2376 m), Mt Pueh (1550 m) and Mt Topap Oso (1450 m). On Mulu, the only mountain with an intact habitat gradient, bird species richness peaks at 600 m. Richness appeared to peak at 600 m on Totap Oso as well, but on Pueh it peaked several hundred metres higher. The richness peak on Mulu differs from that predicted by null models and is instead caused by the overlap of distinct lowland and montane avifaunas, supporting the faunal overlap hypothesis. This finding provides further evidence that a lack of coincidence between peak turnover and peak richness is not sufficient evidence to rule out faunal overlap as a causal factor.

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Predation of the Buffy-fronted Seedeater Sporophila frontalis (Aves: Emberizidae) on Merostachys neesii (Poaceae: Babusoideae) seeds during a masting event in the Atlantic forest

Biota Neotropica ◽

10.1590/s1676-06032011000300033 ◽

2011 ◽

Vol 11 (3) ◽

pp. 407-411 ◽

Cited By ~ 5

Author(s):

César Cestari ◽

Cláudio João Bernardi

Keyword(s):

Atlantic Forest ◽

Predation Rate ◽

The Other ◽

Southeastern Brazil ◽

Forest Species ◽

Forest Reserve ◽

Point Counts ◽

Other Hand ◽

Predatory Impact

The Buffy-fronted Seedeater Sporophila frontalis (Verreaux, 1869) is frequently found foraging on seeds during ephemeral masting events of bamboos in the Atlantic forest. In the present study, we analyzed the predation activity of S. frontalis on seeds of Merostachys neesii Rupr. during a masting event in an Atlantic forest reserve on southeastern Brazil. We conducted point counts in spots with M. neesii and in spots without bamboos along trails to determine the presence of S. frontalis on M. neesii clumps. Additionally, focal observations on bamboo clumps and seed traps were used to verify the predatory impact of S. frontalis on M. neesii seeds. S. frontalis was present in 6 out 18 point counts in M. neesii clumps. The seedeater behaved territorially in bamboo clumps and presented a mean predation rate of 1.10 bamboo seeds/minute. Seed traps had up to 80% of the seeds predated. The large amount of seeds available during bamboo masting events probably contributes to the maintenance of wandering populations of S. frontalis in the Atlantic forest. On the other hand, the predation of seeds by S. frontalis may reduce the reproductive germination and the propagation of the bamboos whose growth may in turn negatively affect the establishment of other forest species.

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Variations in the abundance of three Parulidae species in the southern portion of the Brazilian Atlantic Forest, state of Paraná

Anais da Academia Brasileira de Ciências ◽

10.1590/s0001-37652012005000041 ◽

2012 ◽

Vol 84 (3) ◽

pp. 721-726

Author(s):

Cássius R. Santana ◽

Gabriela M. Bochio ◽

Luiz dos Anjos

Keyword(s):

Atlantic Forest ◽

Vegetation Structure ◽

Rain Forest ◽

Deciduous Forest ◽

Brazilian Atlantic Forest ◽

Forest Types ◽

Point Counts ◽

Significant Difference ◽

Forest Strata ◽

The Difference

We evaluated the distribution of abundance of three species of warblers in the southern portion of the Brazilian Atlantic Forest (BAF): Tropical Parula (Parula pitiayumi), the Golden-Crowned Warbler (Basileuterus culicivorus) and the White-Rimmed Warbler (Basileuterus leucoblepharus). Three types of forests comprise this region of the Atlantic Forest: seasonal semi-deciduous forest (SF), mixed rain forest (MF) and dense rain forest (DF). These forest types occur at different elevations: SF ranging from 200 to 800 m, MF ranging from 800 to 1,200 m and DF ranging from sea level up to 2,000 m. We used point counts in fifteen study areas distributed in the three forest types. The White-Rimmed Warbler and the Tropical Parula had higher abundances in MF, and their abundance was positively correlated with the elevation. The Golden-Crowned Warbler did not present a significant difference in abundance among the forest types, and no correlation between abundance and elevation was found. We suggest that the difference in the occupancy of the forest strata by the Golden-Crowned Warbler is because this species is more generalist and thus less sensitive to variations in the vegetation structure among the forests types when compared to the other two warbler species.

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Rediscovery and subsequent observations of Kaempfer's Tody-tyrant Hemitriccus kaempferi in Santa Catarina, Brazil, with notes on conservation, life history and plumage

Bird Conservation International ◽

10.1017/s0959270900000320 ◽

2000 ◽

Vol 10 (4) ◽

pp. 371-379 ◽

Cited By ~ 2

Author(s):

Juan Mazar Barnett ◽

Guy M. Kirwan ◽

Mark Pearman ◽

Luciano Nicolás Naka ◽

Joe A. Tobias

Keyword(s):

Life History ◽

Natural History ◽

Atlantic Forest ◽

Threatened Species ◽

Bird Species ◽

Type Locality ◽

Field Observations ◽

Southern Brazil ◽

Santa Catarina ◽

Made In

Previously known from two specimens, Kaempfer's Tody-tyrant Hemitriccus kaempferi is a globally threatened species endemic to the southern Brazil Atlantic Forest. The first field observations of this little-known taxon were made in the 1990s and our data therefore provide the first published information on its natural history, including breeding biology, behaviour and vocalizations, as well as a new locality. As very little information has appeared in the literature concerning the identification of this species, we present notes on its plumage and habits. Remarks concerning the species's conservation prospects and the importance of the remaining forest in the vicinity of the type-locality for other threatened bird species are made.

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Bird conservation on Santa Catarina Island, Southern Brazil

Bird Conservation International ◽

10.1017/s0959270902002083 ◽

2001 ◽

Vol 12 (2) ◽

pp. 123-150 ◽

Cited By ~ 9

Author(s):

Luciano N. Naka ◽

Marcos Rodrigues ◽

Andrei L. Roos ◽

Marcos A. G. Azevedo

Keyword(s):

Atlantic Forest ◽

Threatened Species ◽

Conservation Status ◽

Bird Species ◽

Bird Conservation ◽

Southern Brazil ◽

Santa Catarina ◽

Habitat Specificity ◽

Number Of Species ◽

The Government

The island of Santa Catarina lies in the Atlantic Forest Domain of southern Brazil, one of the most threatened ecosys tems on the planet. It holds a wide variety of habitats, ranging from sand dune ‘restingas’ to mature rain forest. We report, for the first time, a survey of the bird species and their conservation status for the different habitats present on the island. We recorded 269 bird species of 54 families (25 species were seabirds). More than 50% (140) of the total number of species were residents or probable residents, 20% (58) were visitors and a relatively high number of species (61, 23%) had indeterminate residential status. Nearly 15% (35 species) of the 244 landbird species observed were endemic to the Atlantic Forest. Habitat specificity was recorded for 40% (97 species). We recorded one Endangered (Solitary Tinamou Tinamus solitarius), one Vulnerable (White-necked Hawk Leucopternis lacernulata), and three Near-threatened species (Azure Jay Cyanocorax caeruleus, Azure-shouldered Tanager Thraupis cyanoptera, Black-backed Tanager Tangara peruviana). We also recorded six locally threatened species that we predict will become extinct in the near future. The future for the birds of the island is uncertain, especially for habitat specialists, due to habitat loss for resort developments, and a lack of concern by the government and local people.

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Using birds to set conservation priorities for Pantanal wetland forests, Brazil

Bird Conservation International ◽

10.1017/s0959270911000207 ◽

2011 ◽

Vol 22 (2) ◽

pp. 155-169 ◽

Cited By ~ 13

Author(s):

JOÃO BATISTA DE PINHO ◽

MIGUEL ÂNGELO MARINI

Keyword(s):

Bird Species ◽

Dry Forest ◽

Evergreen Forest ◽

Conservation Priorities ◽

Forest Types ◽

Dry Forests ◽

Point Counts ◽

Evergreen Forests ◽

Local Species Richness ◽

Bird Richness

SummaryThe Pantanal of Brazil, one of the largest wetlands in the world, is suffering severe threats, such as forest and grassland clearance on the surrounding plateau, conversion of forests and savannas for cattle ranching and effects of large development projects. We used richness, abundance and composition of bird species in four forest types to propose conservation priorities for the northern Pantanal. Birds from 11 sites (a total of 41 points) were sampled through point counts and mist-netting. In total 215 species were recorded in the forests. Two evergreen forest types (cambarazal and landi) had higher estimates of bird richness and abundance than two dry forest types (carvoeiro and cordilheira). The evergreen forests also had more species exclusive to them and were more similar to each other than the dry forests. Selection of forests to be conserved in the northern Pantanal should give priority to evergreen forests and secondarily to dry forests. Cambarazal should be the first forests to be conserved. If the Pantanal inundation cycle is altered by the construction of hydroelectric dams or the Paraguay-Paraná waterway, cambarazal and landi may no longer become flooded, decreasing local species richness. Before our recommendations are considered for conservation and management decisions, more studies on other groups of organisms should also be taken into consideration, and similar studies should be conducted in other regions of the Pantanal. Conservation of Pantanal forest birds depends on a deeper understanding of their use of several habitats, stronger protection of the forests with higher diversity, and public policies that guarantee the long term maintenance of natural flooding cycles.

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Use of Forested Habitat by Breeding Birds in the Gulf Coastal Plain

Southern Journal of Applied Forestry ◽

10.1093/sjaf/22.3.133 ◽

1998 ◽

Vol 22 (3) ◽

pp. 133-137 ◽

Cited By ~ 2

Author(s):

Geoffrey E. Hill

Keyword(s):

Coastal Plain ◽

Longleaf Pine ◽

Bird Species ◽

Pinus Palustris ◽

Slash Pine ◽

Forested Wetland ◽

National Forest ◽

Forest Types ◽

Gulf Coastal Plain ◽

Bird Species Richness

Abstract I compared birds present during the breeding season in four forest types in the Conecuh National Forest located on the Gulf Coastal Plain in Alabama: (1) longleaf pine (Pinus palustris) that had been subject to several recent burns, (2) longleaf pine that had been subject to few or no recent burns, (3) planted slash pine (P. elliottii), and (4) various forested wetland habitats ranging from stream-side riparian habitat to cypress (Taxodium distichum) ponds. I found significantly higher total individuals and significantly higher bird species richness in the two natural forest types—burned longleaf pine and riparian habitats—than either unburned longleaf or slash pine. To maintain greatest diversity and abundance of birds, managers of forests on the Gulf Coastal Plain should (1)preserve wetland habitat, (2) not convert stands of longleaf pine to stands of slash pine, and (3) regularly burn longleaf pine stands. South. J. Appl. For. 22(3):133-137.

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ESPÉCIES ARBÓREAS DE UM TRECHO DE FLORESTA ATLÂNTICA DO MUNICÍPIO DE ANTONINA, PARANÁ, BRASIL

FLORESTA ◽

10.5380/rf.v41i4.25346 ◽

2011 ◽

Vol 41 (4) ◽

Cited By ~ 7

Author(s):

Marilia Borgo ◽

Gilberto Tiepolo ◽

Marcelo Reginato ◽

Yoshiko Saito Kuniyoshi ◽

Franklin Galvão ◽

...

Keyword(s):

Atlantic Forest ◽

Threatened Species ◽

Tree Species ◽

Forest Type ◽

Species Conservation ◽

Floristic Composition ◽

Forest Damage ◽

Permanent Plots ◽

Southern Brazil ◽

Forest Remnant

Com o objetivo de subsidiar futuros estudos de dinâmica da vegetação e efeitos das mudanças climáticas, realizou-se um levantamento florístico do componente arbóreo em área de Floresta Ombrófila Densa da Reserva Natural do Rio Cachoeira, em Antonina, Paraná. O levantamento foi realizado em 187 parcelas permanentes, que representam 23,5 ha amostrados. Foram identificadas 306 espécies distribuídas em 68 famílias. A zoocoria foi a síndrome de dispersão mais comum (81,7% das espécies). Espécies tolerantes à sombra superaram discretamente as não tolerantes (50,3% e 49,7%, respectivamente). Espécies de distribuição geográfica ampla representaram quase metade do total (48,4%). Desse conjunto florístico, 21 espécies encontram-se sob alguma categoria de risco de extinção, o que representa 6,9% do universo encontrado, valor maior que o verificado na maioria dos estudos conduzidos nessa mesma formação (em torno de 2%). Essa situação reflete os efeitos da pressão contínua a que a floresta está sujeita, onde a superexplotação de essências nativas ao longo dos anos, associada à deterioração da floresta por meio da fragmentação e da perda de hábitats, resulta em maior risco à conservação de espécies do bioma.Palavras-chave: Floresta Ombrófila Densa; florística; espécies ameaçadas; síndromes de dispersão. AbstractTree species from an Atlantic Forest remnant in Antonina, Paraná, Southern Brazil. Aiming to support new vegetation dynamics and climate change studies, a floristic survey of the tree species was conducted in the Atlantic Forest at Rio Cachoeira Natural Reserve, in Antonina municipality, Southern Brazil. The survey was intensified in 187 permanent plots, representing 23.5 ha of sampled area. The floristic collection was represented by 306 tree species, distributed in 68 families. Zoochory was the most common dispersion syndrome (81.7%). According to the shadow tolerance, 50.3% of the species were tolerant, while non-tolerant species were 49.7%. Wide geographical distribution species represented almost half of all this floristic set (48.4%).Threatened species were 6.9% of all species found (21), a higher value than that one reported to other studies on this forest type (around 2%). This situation shows the effects of continuous pressure on the forest, as the over exploitation of the vegetation through the years, associated to the forest damage by fragmentation and habitat loss process leads to the higher risks for species conservation on this biome.Keywords: Ombrophilous Dense Forest; floristic composition; threatened species; dispersion ways.

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Breeding and Post-Breeding Habitat Use by Forest Migrant Songbirds in the Missouri Ozarks

The Condor ◽

10.1093/condor/102.4.738 ◽

2000 ◽

Vol 102 (4) ◽

pp. 738-747 ◽

Cited By ~ 12

Author(s):

Rich W. Pagen ◽

Frank R. Thompson III ◽

Dirk E. Burhans

Keyword(s):

Habitat Use ◽

Breeding Season ◽

Forest Canopy ◽

Riparian Forest ◽

Forest Birds ◽

Breeding Habitat ◽

Breeding Period ◽

Forest Species ◽

Upland Forest ◽

Point Counts

Abstract We compared habitat use by forest migrant songbirds during the breeding and post-breeding periods in four Missouri Ozark habitats: mature upland forest, mature riparian forest, 9- to 10-year-old upland forest, and 3- to 4-year-old upland forest created by clearcutting. Adult forest-ground species showed a decrease in abundance in all habitats during the post-breeding period, but hatching-year birds of one of the two forest-ground species were most abundant in early-successional forest during this time. Adults of the two forest-canopy species tended to increase in abundance in 3- to 4-year-old forest from breeding season to post-breeding season. During the breeding season, some forest species were detected with mist-nets in the two early-successional habitats, but infrequently or not at all with point counts in those habitats. Forest birds captured in early-successional habitats during the breeding season may have been nonbreeding floaters, or may have been foraging there from nearby territories in mature forest. Dense shrubs or young trees in early-successional forest may provide habitat for nonbreeding and post-breeding forest migrant songbirds in the Missouri Ozarks.

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Does Proximity to Wetland Shrubland Increase the Habitat Value for Shrubland Birds of Small Patches of Upland Shrubland in the Northeastern United States?

International Journal of Forestry Research ◽

10.1155/2014/329836 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Bill Buffum ◽

Richard A. McKinney

Keyword(s):

United States ◽

Bird Species ◽

Private Landowners ◽

Population Declines ◽

Northeastern United States ◽

Bird Species Richness ◽

Point Counts ◽

Habitat Value ◽

Shrubland Birds ◽

The Impact

The loss of shrubland habitat is linked to population declines for many wildlife species, including several bird species of conservation concern. Conservation agencies in the northeastern United States encourage private landowners to clearcut patches of forest to create shrubland habitat. Many private landowners are only willing to create small clearcuts; therefore, it is important to understand how to maximize the impact of small clearcuts on bird habitat use. In this study we examined whether proximity to wetland shrubland increases the habitat value of small patches of upland shrubland. We conducted point counts at 22 sites containing small patches of upland shrubland ranging in size from 0.1 to 7 ha. Shrubland bird species richness was significantly positively correlated with the proportion of wetland shrubland habitat within 100 m of a site, and with the extent of all shrubland habitat within 100 m, but not with the proportion of upland shrubland. Occupancy modeling indicated that the size of adjacent wetland shrub patches increased occupancy at the sites for five of eight species observed with sufficient rates of detection. Our results suggest that creating clearcuts adjacent to existing areas of wetland shrubland may enhance the habitat value of the patches for shrubland birds.

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