Rodrigo FadiniUniversidade Federal do Oeste do Pará · Instituto de Biodiversidade e Florestas
Rodrigo Fadini
PhD
Professor of Ecology
About
58
Publications
17,767
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,153
Citations
Introduction
I study the consequences of vertebrate seed dispersal for plants regeneration. I am especially interested in mistletoe biology and ecology, but I also studied dung beetles, mammals, terrestrial tortoises, and bats.
Additional affiliations
August 2005 - August 2010
Publications
Publications (58)
Two main hypotheses predominate in the literature on mistletoe-host specifi city: (1) mistletoes are only likely to specialize on plant species on which they are frequently deposited; and (2) compatibility between mistletoes and plant species is a prerequisite for mistletoe-host parasitism. I explored these hypotheses by studying the seed depositio...
Many plant species are threatened as a result of extinction of their large-bodied frugivores all over the world. Additionally, introduced herbivores and seed predators may cause severe pressure on early stages of plant recruitment. We studied the seed dispersal and seed predation of the keystone palm Euterpe edulis on a land-bridge island with a hi...
Ecology of neotropical mistletoes: an important canopy-dwelling component of Brazilian ecosystems RESUMO (Ecologia de ervas-de-passarinho Neotropicais: um importante componente do dossel de ecossistemas brasileiros). Ervas-de-passarinho têm sim sido regularmente estudadas em países temperados por afetar negativamente espécies cultivadas e fl oresta...
The Birds and the Seeds
When species are lost from ecosystems through local extinction, the pattern of ecological interactions changes. Galetti et al. (p. 1086 ) show how the loss of large fruit-eating birds from tropical forest fragments in Brazil affects the reduction of seed size in a palm species. A data set was compiled that consisted of >9000...
Islands can serve as model systems for understanding how biological invasions affect native species. Here we examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil. Anchieta Island has the highest density of mammals of the entire Atlantic forest, especially nest pre...
The lack of synthesized information regarding biodiversity is a major problem among researchers, leading to a pervasive cycle where ecologists make field campaigns to collect information that already exists and yet has not been made available for a broader audience. This problem leads to long-lasting effects in public policies such as spending mone...
Long-term-ecological-research (LTER) faces many challenges, including the difficulty of obtaining long-term funding, changes in research questions and sampling designs, keeping researchers collecting standardized data for many years, impediments to interactions with local people, and the difficulty of integrating the needs of local decision makers...
The genus Psittacanthus (Loranthaceae) is widely distributed in the Neotropical region, where it is known for its large, colourful, scentless flowers. Until very recently, all Psittacanthus species were regarded as exclusively hummingbird-pollinated and the large species radiation in the genus attributed to the interactions with bird dispersers and...
Graphical abstract Highlights d Ecological metadata were compiled for 7,694 sites across the Brazilian Amazon d Accessibility and proximity to research facilities influenced research probability d Knowledge gaps are greater in uplands than in wetlands and aquatic habitats d Undersampled areas overlap predicted hotspots of climate change and defores...
Vertebrates play key roles as seed dispersers, herbivores, and top predators in tropical ecosystems. Therefore, obtaining population estimates for these species and understanding the factors that affect them are essential for wildlife management since changes in their populations have consequences for entire ecosystems. Vertebrate abundances in tro...
The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer‐reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non‐invasive method of surveying vertebrates, applicable to different scales of time and...
The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer-reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non-invasive method of surveying vertebrates, applicable to different scales of time and...
Large-scale exotic tree planting programmes are widespread in the tropics and growing in the Brazilian Amazon – initially to meet global timber and cellulose demands and now as a nature-based solution to fight climate change and promote global ecosystem restoration. However, we still lack an understanding of how far might edge effects of exotic tre...
Este arquivo é a tradução para o português do artigo "Fadini et al. 2021. Long-term standardized ecological research in an Amazonian savanna: a laboratory under threat. An Acad Bras Cienc (2021) 93(Suppl. 4): e20210879 DOI 10.1590/0001-3765202120210879"
Abstract A few decades ago, researchers from the National Institute for Amazonian Research (INPA) started a pilot study to integrate the ecological studies of several organisms using monitoring plots, which then became the embryo for the creation of the RAPELD (Rapid Assessments and Long-term Ecological Research) system used by the Program for Biod...
Neotropical medium and large-bodied mammals are key elements in forest ecosystems, and protected areas are essential for their conservation. In Brazil, sustainable use protected areas (SU-PAs) allow both the conservation of biodiversity and the sustainable use of natural resources, especially in the Amazon region. However, SU-PAs usually suffer bot...
Tropical forests contain the highest concentration of species in terrestrial ecosystems. However, they are disappearing rapidly due to forest clearing to extract timber illegally. Reduced‐impact logging (RIL) is one of the main sustainability proposals for earning profits while still promoting biodiversity conservation. In the present study, we tes...
Ecological succession in tropical savannas is limited by seasonal fire, which affects habitat quality. Although fire may cause negligible or positive effects on animals occupying savannas, most short-term studies (months to a few years) are based on a single temporal sampling snapshot, and long-term studies (decades) are rare. We sampled four lizar...
Pouco se conhece sobre os efeitos de longo prazo do fogo sobre a composição florística das savanas amazônicas isoladas. Dados do regime de queimadas foram coletados entre 1997 e 2017 e relacionados à composição florística em parcelas de 3,75 hectares distribuídos por 10.000 hectares de savana na região de Alter do Chão-PA, como parte das pesquisas...
Mistletoe is increasingly being reported as a horticultural pest, infecting many species grown commercially for fruit, nuts, and other food products. Unlike mistletoe impacts on forestry, the published research on mistletoe in horticulture is scant, with management guidelines reliant on anecdotes, un-replicated trials on unrelated species, and ofte...
Our knowledge of how tropical forest biodiversity and functioning respond to anthropogenic and climate‐associated stressors is limited. Research exploring El Niño impacts are scarce or based on single post‐disturbance assessments, and few studies assess forests previously affected by anthropogenic disturbance. Focusing on dung beetles and associate...
Mistletoe harvested from a tree. First author used as a scale.
Mistletoes are considered keystone species on woodlands and savannas worldwide, providing a food resource for a diversified fauna, as well as a nutrient-enriched litter. Infections can be large (∼1–3 m) and, in some parts of the Amazonian savannas, parasitize up to 70% of hosts locally. Despite these facts, biomass of mistletoes is rarely investiga...
Os cortes do Brasil em ciência estão colocando programas de pesquisa e monitoramento de longo prazo da biodiversidade em risco (1). Para montar resistência efetiva contra essas políticas, cientistas devem desenvolver estratégias para mobilizar o público. Engajamento com influenciadores de mídias sociais pode ajudar a aumentar a consciência sobre as...
One of the problems affecting the quality of urban trees is their infestation by mistletoes (aerial hemiparasite plants of the order Santalales). Identifcation of the main types of trees infested, and of the causes of infestation patterns, can help infestation control and the planning of efcient planting regimes. In this sense, the aim of this study...
Background: Wildfires pose one of the biggest threats to tropical forests, where they are strongly linked to extreme drought events, like those caused by the El Niño. In the Amazon, due to the unusually dry conditions resulting from the 2015-16 El Niño, many fires used for farming management escaped from agricultural areas into nearby forests. As a...
There is a profound absence of knowledge of infestation prevalence and host-use by mistletoes of mature South American tropical rainforests. In this study, we fill this gap using information gathered from felled trees at a logging concession area in Amazonian Brazil. We sampled individuals of 18 tree species, which occurred in two forest physiognom...
[This corrects the article DOI: 10.1371/journal.pone.0127004.].
The detection of an organism in a given site is widely used as a state variable in many meta-population and epidemiological studies. However, failure to detect the species does not necessarily mean that it is absent. Assessing detectability is important for occupancy (presence —absence) surveys; and identifying the factors reducing detectability ma...
Parasitic plants rely on host plants for nutrition. The number of host species varies largely between groups, from single species or genus to hundreds of species. Relative abundance of the host and evolutionary history are the main requisites for parasitic plants to develop specificity to abundant hosts. In the present study, we suggest a novel mec...
Seeds of several plant species are frequently wasted, if dispersed to unsuitable microsites. Some microsites, such as the interior of large caves, are unsafe for animal-dispersed seeds. However, sometimes a second dispersal agent may give these seeds a second chance of survival, thus playing the role of ‘seed rescuer’. We tested this hypothesis by...
Most mistletoe species that live in savanna patches are subjected to frequent fires. Although having similar habits, even congener species may parasitize very different host species and show different degrees of specialization that may differentially affect their resistance to fire. We studied three congener mistletoe species with a diverse degree...
The present paper describes the spatial distribution of the mistletoe Psittacanthus plagiophyllus Eichl. (Loranthaceae) on its host, the cashew tree Anacardium occidentale L., in a Brazilian Amazonian savanna. Our aim was to understand the roles of bird-seed dispersers and host quality in determining the mistletoe distribution among its host trees....
Questions
Question (1)
Hello!
I will present a lecture in the Brazilian Botany Congress about methods of plant collection in tree canopies. I personally used a method to collect mistletoes on the ground, without the need to climb on the tree tops. Therefore, I would like to compare coarsely the efficiency this method with the usual climbing rope techniques used to access tree canopies. If you are a canopy ecologist, could you please help?
If yes, please, inform:
1-How many trees do you climb a day?
2-What is the approximate size of the trees?
3-How many people are your field team?
4-Where is your study site?
Thank you!
