scholarly journals Knowledge gaps regarding frugivorous ecological networks between birds and plants in Brazil

2019 ◽  
Vol 59 ◽  
pp. e20195954 ◽  
Author(s):  
Cristian Daniel Veliz Baldiviezo ◽  
Marcela Fortes de Oliveira Passos ◽  
Cristiano Schetini de Azevedo
Keyword(s):  
Native Species ◽  
Gap Analysis ◽  
Bird Species ◽  
Knowledge Gaps ◽  
Ecological Processes ◽  
Future Directions ◽  
The North ◽  
Funding Agencies ◽  
Seed Dispersion ◽  
Number Of Publications

Vegetation stability, resilience and regeneration can be achieved by various ecological processes, the most important of which is seed dispersion. Among animal groups, birds have the largest number of frugivorous species in the Neotropics. The aim of this study was to conduct a bibliometric analysis to detect general patterns and discover knowledge gaps in order to identify future directions for research into bird frugivory in Brazil. A gap analysis was carried out by obtaining 77 articles published online and evaluating their data in different ways. The results revealed that research on bird frugivory in Brazil was published in 33 scientific journals and financed by 18 national and international funding agencies. The number of publications increased over time, with the majority of them reporting research carried out in biomes of Central-West and South regions of Brazil. The most important bird species in frugivorous interactions in the most studied biomes were identified, including some non-native species. Our results corroborate several other studies, which together demonstrate a lack research on frugivorous interactions in the North and Northeast of Brazil, where there are very important biomes for conservation, such as the Amazon and Caatinga, for which knowledge of seed dispersal processes is needed.

scholarly journals The risks of introduction of the Amazonian palm Euterpe oleracea in the Atlantic rainforest

2016 ◽  
Vol 76 (1) ◽  
pp. 66-72
Author(s):  
F. C. S. Tiberio ◽  
T. A. Sampaio-e-Silva ◽  
D. M. S. Matos ◽  
A. Z. Antunes
Keyword(s):  
Population Structure ◽  
Native Species ◽  
Bird Species ◽  
Atlantic Rainforest ◽  
Euterpe Oleracea ◽  
Dispersal Patterns ◽  
Ecological Processes ◽  
Frugivorous Birds ◽  
Ecological Aspects ◽  
Palm Species

Abstract The introduction of a species may alter ecological processes of native populations, such as pollination and dispersal patterns, leading to changes in population structure. When the introduced and the native species are congeners, interference in pollination can also lead to hybridization. We aimed to understand the ecological aspects of Euterpe oleracea introduction in the Atlantic forest and the possible consequences for the conservation of the native congener Euterpe edulis. We analysed the population structure of palm populations, including hybrids, and observed the interaction with frugivorous birds of both palm species after E. oleracea introduction. We observed that E. edulis had significantly lower density and a smaller number of seedlings when occurring with E. oleracea. Native and introduced Euterpe species shared nine frugivorous bird species. E. oleracea and hybrids had dispersed outside the original planting area. Consequently, the risks of introduction of E. oleracea may mostly be related to the disruption of interactions between E. edulis and frugivorous birds and the spontaneous production of hybrids. Finally, the cultivation of E. oleracea and hybrids in Atlantic rainforest could affect the conservation of the already endangered E. edulis.

scholarly journals Orchids on the edge: threatened orchid recovery in the North Central region, 2003-2009

2010 ◽  
Vol 122 (2) ◽  
pp. 84 ◽  
Author(s):  
Geoff Nevill
Keyword(s):  
Central Region ◽  
Key Management ◽  
North Central Region ◽  
Knowledge Gaps ◽  
Future Directions ◽  
North Central ◽  
Management Actions ◽  
The North

This paper presents an overview of activities to conserve a suite of threatened orchid taxa within the North Central region between 2003 and 2009. Historical and current threats to orchid populations are outlined and management responses detailed, together with results of key management actions. Knowledge gaps are identified, with past and current actions to address some of these included. Future directions for the conservation of threatened orchids in the region are briefly discussed.

Creating Affirmative and Inclusive Practices When Providing Genetic and Genomic Diagnostic and Research Services to Gender-Expansive and Transgender Patients

2020 ◽  
Author(s):  
J Graham Theisen ◽  
Ina E Amarillo
Keyword(s):  
Process Improvement ◽  
Medical Specialty ◽  
Standards Of Care ◽  
Laboratory Sample ◽  
Knowledge Gaps ◽  
Future Directions ◽  
Genetics And Genomics ◽  
Number Of Publications ◽  
Inclusive Processes ◽  
Identity Knowledge

Abstract Background Gender expansive and transgender (GET) healthcare extends beyond gender-affirming therapies, reaching every medical specialty and subspecialty. As the number of GET patients seeking health services has increased, so has the need for standards of care regarding GET-affirmative practices throughout the healthcare system. As such, the number of publications surrounding GET-affirmative practices has steadily risen. However, even as such research has gained ground in other areas, one realm in which there has been a relative lag is genetics and genomics (GG). Content In this article, we track the GET patient and their laboratory sample from the clinic to the GG laboratory and back. Throughout the preanalytical, analytical, and postanalytical phases, we identify publications, recommendations, and guidelines relevant to the care of the GET community. We also identity knowledge gaps in each area and provide recommendations for affirmative and inclusive processes for addressing those gaps. Summary We have identified the practices involved in GG services that would benefit from GET-affirmative process improvement, reviewing relevant affirmative guidelines. Where guidelines could not be found, we identified those knowledge gaps and suggested potential solutions and future directions for implementing GET-affirmative practices.

Forest ecological restoration using native species in the North-West of Tunisia: a brand new experience of participatory approach.

2019 ◽  
Vol 45 (1) ◽  
pp. 75-84
Author(s):  
Issam Touhami ◽  
Ali El khorchani ◽  
Zouheir Nasr ◽  
Mohamed tahar Elaieb ◽  
Touhami Rzigui ◽  
...  
Keyword(s):  
Ecological Restoration ◽  
Native Species ◽  
Participatory Approach ◽  
North West ◽  
The North

Artificial reefs in the North –East Atlantic area: Present situation, knowledge gaps and future perspectives

2021 ◽  
Vol 213 ◽  
pp. 105854
Author(s):  
Bianca Reis ◽  
Pieter van der Linden ◽  
Isabel Sousa Pinto ◽  
Emanuel Almada ◽  
Maria Teresa Borges ◽  
...  
Keyword(s):  
Present Situation ◽  
Artificial Reefs ◽  
Future Perspectives ◽  
East Atlantic ◽  
Knowledge Gaps ◽  
North East ◽  
The North ◽  
Atlantic Area

scholarly journals Diet composition of the invasive red-whiskered bulbul Pycnonotus jocosus in Mauritius

2010 ◽  
Vol 26 (3) ◽  
pp. 347-350 ◽  
Author(s):  
Jannie Fries Linnebjerg ◽  
Dennis M. Hansen ◽  
Nancy Bunbury ◽  
Jens M. Olesen
Keyword(s):  
Invasive Species ◽  
Introduced Species ◽  
Native Species ◽  
Diet Composition ◽  
Ecological Perspective ◽  
Positive Interactions ◽  
Invasional Meltdown ◽  
Ecological Processes ◽  
Successful Establishment ◽  
The Impact

Disruption of ecosystems is one of the biggest threats posed by invasive species (Mack et al. 2000). Thus, one of the most important challenges is to understand the impact of exotic species on native species and habitats (e.g. Jones 2008). The probability that entire ‘invasive communities’ will develop increases as more species establish in new areas (Bourgeois et al. 2005). For example, introduced species may act in concert, facilitating one another's invasion, and increasing the likelihood of successful establishment, spread and impact. Simberloff & Von Holle (1999) introduced the term ‘invasional meltdown’ for this process, which has received widespread attention since (e.g. O'Dowd 2003, Richardson et al. 2000, Simberloff 2006). Positive interactions among introduced species are relatively common, but few have been studied in detail (Traveset & Richardson 2006). Examples include introduced insects and birds that pollinate and disperse exotic plants, thereby facilitating the spread of these species into non-invaded habitats (Goulson 2003, Mandon-Dalger et al. 2004, Simberloff & Von Holle 1999). From a more general ecological perspective, the study of interactions involving introduced and invasive species can contribute to our knowledge of ecological processes – for example, community assembly and indirect interactions.

Astrobiology in Brazil: early history and perspectives

2012 ◽  
Vol 11 (4) ◽  
pp. 189-202 ◽  
Author(s):  
Fabio Rodrigues ◽  
Douglas Galante ◽  
Ivan G. Paulino-Lima ◽  
Rubens T.D. Duarte ◽  
Amancio C.S. Friaça ◽  
...  
Keyword(s):  
Formal Group ◽  
Scientific Production ◽  
Funding Agencies ◽  
First Occurrence ◽  
History Of ◽  
The Subject ◽  
Review Reports ◽  
Number Of Publications ◽  
Brazilian History ◽  
The University

AbstractThis review reports the Brazilian history in astrobiology, as well as the first delineation of a vision of the future development of the field in the country, exploring its abundant biodiversity, highly capable human resources and state-of-the-art facilities, reflecting the last few years of stable governmental investments in science, technology and education, all conditions providing good perspectives on continued and steadily growing funding for astrobiology-related research. Brazil is growing steadily and fast in terms of its worldwide economic power, an effect being reflected in different areas of the Brazilian society, including industry, technology, education, social care and scientific production. In the field of astrobiology, the country has had some important landmarks, more intensely after the First Brazilian Workshop on Astrobiology in 2006. The history of astrobiology in Brazil, however, is not so recent and had its first occurrence in 1958. Since then, researchers carried out many individual initiatives across the country in astrobiology-related fields, resulting in an ever growing and expressive scientific production. The number of publications, including articles and theses, has particularly increased in the last decade, but still counting with the effort of researchers working individually. That scenario started to change in 2009, when a formal group of Brazilian researchers working with astrobiology was organized, aiming at congregating the scientific community interested in the subject and to promote the necessary interactions to achieve a multidisciplinary work, receiving facilities and funding from the University de Sao Paulo and other funding agencies.

Influence of cliffs on bird community diversity

1998 ◽  
Vol 76 (2) ◽  
pp. 278-287 ◽  
Author(s):  
J D Matheson ◽  
D W Larson
Keyword(s):  
Bird Species ◽  
Bird Community ◽  
Community Diversity ◽  
Bird Species Richness ◽  
Narrow Component ◽  
Habitat Features ◽  
Habitat Mosaic ◽  
The North ◽  
Talus Slope ◽  
Additive Influence

Cliffs along the Niagara Escarpment in Ontario, Canada, support a long, narrow presettlement forest that includes three distinct geomorphic and vegetation zones: cliff edge, cliff face, and talus slope. This unique landform provides an opportunity to evaluate differences in bird communities between the escarpment and adjacent forest relative to habitat features. We sampled forest birds 12 times during the summer of 1994 in plots located in plateau forests, on talus slope, at cliff edges, and on cliff faces. Eleven habitat variables considered important to birds were also sampled in the plots. We arranged plots along six randomly spaced transects at a south site and a north site. Both sites had the consistent habitat heterogeneity considered important to birds. Bird species richness and composition responded to this heterogeneity, but differently at each site: plateau deciduous forests always had the lowest richness and the simplest species composition, whereas both cliff edges and talus slopes had a higher diversity of birds. Cliff faces had large numbers of species in the south but smaller numbers in the north. Escarpment zones form a habitat mosaic that supports many species not found in the adjacent forest and is consistent with the effect of habitat edge. The results suggest that cliffs represent a significant additive influence on avian biodiversity, even when the cliff is a very narrow component of the landscape.

scholarly journals Knowledge gaps and biases in the Pantanal indicate future directions for ornithological research in large wetlands

Ibis ◽  
2021 ◽  
Author(s):  
Gilberto J. Fernández‐Arellano ◽  
Alberto L. Teixido ◽  
Bianca Bernardon ◽  
Elaine R. Bueno ◽  
Tiago V. Ferreira ◽  
...  
Keyword(s):  
Knowledge Gaps ◽  
Future Directions

scholarly journals A floristic description of the Afromontane fynbos communities on Platberg, Eastern Free State, South Africa

Koedoe ◽  
2008 ◽  
Vol 50 (1) ◽  
Author(s):  
Robert F. Brand ◽  
Pieter J. Du Preez ◽  
Leslie R. Brown
Keyword(s):  
Natural Resources ◽  
Plant Communities ◽  
Conservation Management ◽  
Alien Invasive Species ◽  
Ecological Processes ◽  
The North ◽  
Shrub Community ◽  
Management Plans ◽  
Twinspan Classification

Within the Platberg area and the wider Drakensberg region, the shrinking natural resources and the threat posed to biodiversity are of concern to conservation management and require an understanding of long-term ecological processes. The vegetation of Platberg was investigated as part of an ecological survey to establish Afromontane floristic links to the Drakensberg as well as for the management of natural resources. From a TWINSPAN classification, refined by the Braun-Blanquet method, four main plant communities were identified, which were subdivided into fynbos, wetland, a woody/shrub community and grassland. A classification and description of the fynbos are presented in this article.The analysis showed the fynbos divided into two communities comprising four sub-communities and seven variants. The fynbos community had an average of 28.34 species per relevé, ranging from 14 to 54 species per sample plot. Twenty-four endemic or near-endemic Drakensberg Alpine Centre (DAC) species and 22 exotic (alien-invasive) species were recorded. Numerous floristic links with the DAC, Cape flora fynbos and grassland bioregions to the north and west were also found. The description of the fynbos plant communities can serve as a basis for the formulation of management plans for the area.

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