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Diversity, Abundance and Seasonality of Birds in a Caribbean Pine Plantation and Native Broad-Leaved Forest at Trinidad, West Indies
Bird Conservation International (1998) 8:67-87. © BirdLife International 1998 Diversity, abundance and seasonality of birds in a Caribbean pine plantation and native broad-leaved forest at Trinidad, West Indies FLOYD E. HAYES and ISHMAELANGELO SAMAD Summary Monoculture plantations of exotic Caribbean pine Finns caribaen have been planted extensively in many tropical countries, but little is known about the bird communities inhabiting them. From October 1995 to September 1996, we compared bird populations in a 37-ha stand of mature Caribbean pine forest (planted in 1972) with an adjacent, similar-sized stand of native broad-leaved forest at Mount Saint Benedict, Trinidad, West Indies. Ten censuses, each including 10 fixed-radius point counts (25 m radius, 10 minutes duration), were conducted simultaneously during different months of the year in each habitat. Both species richness and species diversity were significantly lower in the pine forest, but the overall abundance of individual birds did not differ between the two forests. Seasonal variation in bird populations was more pronounced in the pine forest, where fewer birds (and presumably food resources) were present during the dry season. The pine forest bird community was dominated by forest edge specialists and the native forest by forest interior specialists at both the individual and species levels. At the individual level, nectarivores, aerial foragers and understorey foragers were proportionately more common in the pine forest; insectivores and canopy foragers were more common in the native forest. At the species level, more aerial foragers occurred in the pine forest and more understorey foragers in the native forest. The diversity of bird communities in pine plantations may be promoted by increasing habitat heterogeneity. -
TAS Trinidad and Tobago Birding Tour June 14-24, 2012 Brian Rapoza, Tour Leader
TAS Trinidad and Tobago Birding Tour June 14-24, 2012 Brian Rapoza, Tour Leader This past June 14-24, a group of nine birders and photographers (TAS President Joe Barros, along with Kathy Burkhart, Ann Wiley, Barbara and Ted Center, Nancy and Bruce Moreland and Lori and Tony Pasko) joined me for Tropical Audubon’s birding tour to Trinidad and Tobago. We were also joined by Mark Lopez, a turtle-monitoring colleague of Ann’s, for the first four days of the tour. The islands, which I first visited in 2008, are located between Venezuela and Grenada, at the southern end of the Lesser Antilles, and are home to a distinctly South American avifauna, with over 470 species recorded. The avifauna is sometimes referred to as a Whitman’s sampler of tropical birding, in that most neotropical bird families are represented on the islands by at least one species, but never by an overwhelming number, making for an ideal introduction for birders with limited experience in the tropics. The bird list includes two endemics, the critically endangered Trinidad Piping Guan and the beautiful yet considerably more common Trinidad Motmot; we would see both during our tour. Upon our arrival in Port of Spain, Trinidad and Tobago’s capital, we were met by the father and son team of Roodal and Dave Ramlal, our drivers and bird guides during our stay in Trinidad. Ruddy Ground-Dove, Gray- breasted Martin, White-winged Swallow and Carib Grackle were among the first birds encountered around the airport. We were immediately driven to Asa Wright Nature Centre, in the Arima Valley of Trinidad’s Northern Range, our base of operations for the first seven nights of our tour. -
Bird Community Diversity in Three Habitat Types in an Ecological Corridor in the Atlantic Forest of Misiones Province, Argentina
Mongabay.com Open Access Journal - Tropical Conservation Science Vol.8 (4): 955-974, 2015 Research Article Bird community diversity in three habitat types in an ecological corridor in the Atlantic Forest of Misiones province, Argentina Flavia Romina Barzan1*, Julián Martín Emanuel Baigorria2 and Roberto Fabián Bó1 1 Grupo de Investigaciones en Ecología de Humedales (GIEH-CONICET)/Laboratorio de Ecología Regional, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes y Av. Cantilo s/n, Pabellón II, Ciudad Universitaria (1428), Buenos Aires, Argentina. E-mail: [email protected] 2Centro de Investigaciones del Bosque Atlántico (CeIBA-CONICET), Bertoni 85, Puerto Iguazú (3370), Misiones, Argentina. E-mail: [email protected] * Corresponding author:[email protected] Abstract The Atlantic Forest is one of the most threatened biodiversity hotspots in the world due to habitat fragmentation. Restoration and connectivity of forest fragments are crucial to maintain viable populations of forest-dependent species. During winter and summer, we studied the bird diversity, its components and composition (including specialist and generalist species) in three different vegetation types: mature forest (MF), secondary forest (SF) and grassland (G) of an ecological corridor in Misiones, Argentina. We determined the influence of alpha diversity (of each habitat) and beta diversity (species turnover between habitats) on gamma diversity (regional diversity in the corridor), to provide conservation management recommendations. MF showed the highest values of bird diversity, richness, evenness and abundance, followed by SF and G, in both seasons. Only MF showed a possible seasonal variation in diversity and richness. The species composition of SF was similar to MF. -
The Feeding Ecology of Tanagers and Honeycreepers in Trinidad
THE FEEDING ECOLOGY OF TANAGERS AND HONEYCREEPERS IN TRINIDAD B^•B^•^ K. S•ow ^•r• D. W. S•ow Dtmi•G the last 131/2months of our 41/2-years' residence in Trinidad (August 1960 to September 1961) we kept systematicrecords of the feedingbehavior of the commonertanagers and honeycreepers.By this time, besidesknowing the bird specieswell, we had learned to identify most of the trees and shrubs,particularly those in the northern mountain range where we lived. The correct systematictreatment of the tanagersand honeycreepersis still uncertain. Formerly they were separated as Thraupidae and Coerebidae,but Beecher (1951) argued that the Coerebidaeare a hetero- geneousgroup and recommendedplacing Coereba and Conirostrumwith the Parulidaeand the otherswith the Thraupidae. Whatevertheir correct systematicarrangement, they form a natural ecologicalgroup of small to medium-sized birds of wooded habitats that take a mixed diet of insects and fruit, with somenectar. The tanagersare structurally unspecialized as a group, but the honeycreepersin beak and tongue are to some extent specializedfor nectar-eating. As fruit-eaters,both tanagersand honey- creeperstypically exploit the smaller, succulent fruits of trees, shrubs, and vines,and are ecologicallyquite distinct from the larger, specialized fruit-eating birds that exploit the larger and more nutritious fruits of palms,Lauraceae, Burseraceae, and someother tree families (Snow, 1971). They are commonand conspicuousbirds of the neotropicalforests, where many speciescoexist, frequently with little obviousecological -
Spatial Distribution and Trophic Structure of Bird's Communities Of
Available online at www.worldnewsnaturalsciences.com WNOFNS 35 (2021) 1-24 EISSN 2543-5426 Spatial distribution and trophic structure of bird’s communities of Atlantic Forest fragments in Brazil Fabio Rossano Dario Instituto de Pesquisas e Estudos da Vida Silvestre, Rua Leonardo Mota, 66 - São Paulo-SP, Brazil - ZIP 05586-090 E-mail address: [email protected] Phone: +5511981541925 ABSTRACT We analyzed the differences in composition, richness, and abundance of birds in forest fragments of the Atlantic Forest in the São Paulo State, Brazil, and we demonstrated the variations in richness and abundance of birds between different trophic guilds. We used point counts to characterize the avifauna. Sampling was conducted in two seasons: summer and winter of 2020 in a total of 18 hours distributed in 54 samples. A total of 544 contacts were obtained, belonging to 144 bird species distributed among 22 orders and 45 families and categorized in 18 trophic guilds. The omnivores and insectivores birds composed most of the community, occupying the edge and different strata of the forest such as canopy and understory. For each species, we calculated the abundance index value that showed our study site had a large number of species with low index and few species with intermediate to high index compared to the pattern observed in other surveys. Our study area was characterized by high species diversity for both periods studied. The Shannon-Weaver diversity index for our study areas was 4.62. Equitability was high, 0.92, suggesting the number of species registered in our study site represented the maximum capacity the areas can shelter. -
Timothy Wong Biologist II, Steinhart Aquarium, California Academy of Sciences 55 Music Concourse Drive, San Francisco, CA 94118
Birds vs. Butterflies: Exhibiting Tropical Passerines and Lepidoptera in the Osher Rainforest Exhibit at the California Academy of Sciences Timothy Wong Biologist II, Steinhart Aquarium, California Academy of Sciences 55 Music Concourse Drive, San Francisco, CA 94118 The Osher Rainforest exhibit at the California Academy of Sciences houses a mixed species display of birds, butterflies, tropical plants, reptiles, fish, and amphibians in a spherical glass greenhouse. The exhibit was designed to house a diverse and naturalistic selection of species originating from rainforest habitats around the world; providing unique challenges for husbandry staff to successfully display a diverse selection of tropical Lepidoptera with insectivorous Passerine species chosen for exhibit. Photo 1: Paradise Tanager Tangara chilensis Photo 2: Heliconius hecale nectaring Introduction Displaying live tropical butterflies successfully with insectivorous birds naturally poses many challenges. Since opening in 2008, the species of exhibit butterflies remained relatively unchanged resulting in regular predation and fewer butterflies on display. In 2017, the exhibit underwent significant renovations to improve how visitors experienced live butterflies, creating opportunities to make changes to husbandry, improve the habitat, and try new species of butterflies at elevated numbers while maintaining compatibility with the existing bird collection. These changes aimed to increase the survivability and maximize the diversity of butterflies on display. New feeding -
A New Genus and Species of Furnariid (Aves: Furnariidae) from the Cocoa-Growing Region of Southeastern Bahia, Brazil
THEWILSONBULLETIN A QUARTERLY MAGAZINE OF ORNITHOLOGY Published by the Wilson Ornithological Society VOL. 108, No. 3 SEPTEMBER 1996 PAGES 397-606 Wilson Bull., 108(3), 1996, pp. 397-433 A NEW GENUS AND SPECIES OF FURNARIID (AVES: FURNARIIDAE) FROM THE COCOA-GROWING REGION OF SOUTHEASTERN BAHIA, BRAZIL Jose FERNANDO PACHECO,’ BRET M. WHITNEY,‘J AND LUIZ P. GONZAGA’ ABSTRACT.-we here describe Acrobatomis fonsecai, a new genus and species in the Furnariidae, from the Atlantic Forest of southeastern Bahia, Brazil. Among the outstanding features of this small, arboreal form are: black-and-gray definitive plumage lacking any rufous: juvenal plumage markedly different from adult; stout, bright-pink legs and feet; and its acrobatic foraging behavior involving almost constant inverted hangs on foliage and scansorial creeping along the undersides of canopy limbs. Analysis of morphology, vocal- izations, and behavior suggest to us a phylogenetic position close to Asfhenes and Crani- oleuca; in some respects, it appears close to the equally obscure Xenerpesres and Meto- pothrix. New data on the morphology, vocalizations, and behavior of several furuariids possibly related to Acrobatornis are presented in the context of intrafamilial relationships. We theorize that Acrobatornis could have colonized its current range during an ancient period of continental semiaridity that promoted the expansion of stick-nesting prototypes from a southern, Chaco-PatagonianE’antanal center, and today represents a relict that sur- vived by adapting to build its stick-nest in the relatively dry, open, canopy of leguminaceous trees of the contemporary humid forest in southeastern Bahia. Another theory of origin places emphasis on the fact that the closest relatives of practically all (if not all) other birds syntopic with Acrobatomis are of primarily Amazonian distribution. -
2. Birds of South America
TRAFFIC Bird’s-eye view: REPORT Lessons from 50 years of bird trade regulation & conservation in Amazon countries DECEMBER 2018 Bernardo Ortiz-von Halle About the author and this study: Bernardo Ortiz-von Halle, a biologist and TRAFFIC REPORT zoologist from the Universidad del Valle, Cali, Colombia, has more than 30 years of experience in numerous aspects of conservation and its links to development. His decades of work for IUCN - International Union for Conservation of Nature and TRAFFIC TRAFFIC, the wildlife trade monitoring in South America have allowed him to network, is a leading non-governmental organization working globally on trade acquire a unique outlook on the mechanisms, in wild animals and plants in the context institutions, stakeholders and challenges facing of both biodiversity conservation and the conservation and sustainable use of species sustainable development. and ecosystems. Developing a critical perspective The views of the authors expressed in this of what works and what doesn’t to achieve lasting conservation goals, publication do not necessarily reflect those Bernardo has put this expertise within an historic framework to interpret of TRAFFIC, WWF, or IUCN. the outcomes of different wildlife policies and actions in South America, Reproduction of material appearing in offering guidance towards solutions that require new ways of looking at this report requires written permission wildlife trade-related problems. Always framing analysis and interpretation from the publisher. in the midst of the socioeconomic and political frameworks of each South The designations of geographical entities in American country and in the region as a whole, this work puts forward this publication, and the presentation of the conclusions and possible solutions to bird trade-related issues that are material, do not imply the expression of any linked to global dynamics, especially those related to wildlife trade. -
Final Report
Final Report i TABLE OF CONTENTS REPORT CREDITS ................................................................................................................................. IV EXECUTIVE SUMMARY .......................................................................................................................... 1 INTRODUCTION ..................................................................................................................................... 2 METHODS .............................................................................................................................................. 3 Plants ............................................................................................................................................................... 3 Birds ................................................................................................................................................................ 3 Mammals ......................................................................................................................................................... 3 Reptiles and Amphibians ................................................................................................................................. 3 Aquatic (Marine) .............................................................................................................................................. 3 Aquatic (Freshwater, Estuarine, Coastal Nearshore) ....................................................................................... -
An Overlooked Hotspot for Birds in the Atlantic Forest
ARTICLE An overlooked hotspot for birds in the Atlantic Forest Vagner Cavarzere¹; Ciro Albano²; Vinicius Rodrigues Tonetti³; José Fernando Pacheco⁴; Bret M. Whitney⁵ & Luís Fábio Silveira⁶ ¹ Universidade Tecnológica Federal do Paraná (UTFPR). Santa Helena, PR, Brasil. ORCID: http://orcid.org/0000-0003-0510-4557. E-mail: [email protected] ² Brazil Birding Experts. Fortaleza, CE, Brasil. E-mail: [email protected] ³ Universidade Estadual Paulista (UNESP), Instituto de Biociências, Departamento de Ecologia. Rio Claro, SP, Brasil. ORCID: http://orcid.org/0000-0003-2263-5608. E-mail: [email protected] ⁴ Comitê Brasileiro de Registros Ornitológicos (CBRO). Rio de Janeiro, RJ, Brasil. ORCID: http://orcid.org/0000-0002-2399-7662. E-mail: [email protected] ⁵ Louisiana State University, Museum of Natural Science. Baton Rouge, Louisiana, Estados Unidos. ORCID: http://orcid.org/0000-0001-8442-9370. E-mail: [email protected] ⁶ Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). São Paulo, SP, Brasil. ORCID: http://orcid.org/0000-0003-2576-7657. E-mail: [email protected] Abstract. Montane and submontane forest patches in the state of Bahia, Brazil, are among the few large and preserved Atlantic Forests remnants. They are strongholds of an almost complete elevational gradient, which harbor both lowland and highland bird taxa. Despite being considered a biodiversity hotspot, few ornithologists have surveyed these forests, especially along elevational gradients. Here we compile bird records acquired from systematic surveys and random observations carried out since the 1980s in a 7,500 ha private protected area: Serra Bonita private reserve. We recorded 368 species, of which 143 are Atlantic Forest endemic taxa. -
Best of Trinidad | Species List April 21-28, 2018 | Compiled by Bob Meinke
Best of Trinidad | Species List April 21-28, 2018 | Compiled by Bob Meinke GUIDE BOB MEINKE, WITH EXPERT ASA WRIGHT NATURE CENTER NATURALISTS ROODAL AND DAVE RAMLAL, AND 11 PARTICIPANTS: KELLY, JULIANA, BILL, CAROLINE, MARY ELLEN, GEORGE, JANE, SUSAN, MICAHEL, CATHERINE, and DUNCAN SUMMARY The compilation below summarizes our sightings, covering 171 bird species, seen by all or at least some of the participants. An “HO” placed after a species name means the bird was heard only and not sighted, while “LO” designates those few species only spotted by the trip leader or a lodge guide. The ordering of families and species follows the Asa Wright Nature Center booklet we used on the trip, with a few exceptions, i.e., where family affiliation or species-level taxonomy have been changed to reflect the most recent updates appearing in the Clements Checklist of Birds of the World (Cornell Lab of Ornithology; http://www.birds.cornell.edu/clementschecklist/). BIRDS Tinamidae: Tinamous (1) Little Tinamou (HO) (Crypturellus soui) Birds were heard clearly, in the heavy brush at Wallerfield (former site of Waller Air Force Base, an American installation abandoned after World War II) Anatidae: Ducks, Geese and Swans (1) Blue-winged Teal (Spatula discors) A pair of birds were seen very briefly flying near the beach during our drive to Nariva Swamp Cracidae: Guans and Chachalacas (1) Trinidad Piping-Guan (Pipile pipile) Fifteen to twenty of this critically endangered cracid (fewer than 200 are known to still exist) were watched and photographed on the hills above Grand Riviere during our stay at Mt. -
BONNER ZOOLOGISCHE MONOGRAPHIEN, Nr
QL © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zoologicalbulletin.de; www.biologiezentrum.at AVIFAUNA OF NORTHWESTERN COLOMBIA, SOUTH AMERICA by JÜRGEN HAFFER BONNER ZOOLOGISCHE MONOGRAPHIEN, Nr. 7 1975 Herausgeber: ZOOLOGISCHES FORSCHUNGSINSTITUT UND MUSEUM ALEXANDER KOENIG BONN © Biodiversity Heritage Library, http://www.biodiversitylibrary.org/; www.zoologicalbulletin.de; www.biologiezentrum.at : BONNER ZOOLOGISCHE MONOGRAPHIEN Die Serie wird vom Zoologischen Forschungsinistitut und Museum Alexander Koenig herausgegeben und bringt Originalarbeiten, die für eine Unterbringung in den „Bonner Zoologischen Beiträgen" zu lang sind und eine Veröffentlichung als Monographie rechtfertigen. Anfragen bezüglich der Vorlage von Manuskripten und Bestellungen sind an die Schriftleitung zu richten. This series of monographs, published by the Zoological Research In- stitute and Museum Alexander Koenig, has been established for original contributions too long for inclusion in „Bonner Zoologische Beiträge". Correspondence concerning manuscripts for publication and purchase orders should be addressed to the editors. LTnstitut de Recherches Zoologiques et Museum Alexander Koenig a etabli cette serie de monographies pour pouvoir publier des travaux zoolo- giques trop longs pour etre inclus dans les „Bonner Zoologische Beiträge". Toute correspondance concernant des manuscrits pour cette serie ou des commandes doivent etre adressees aux editeurs. BONNER ZOOLOGISCHE MONOGRAPHIEN, Nr. 7, 1975 Preis 35 DM Schriftleitung/Editor Dr.