top of page

Search results

81 results found with an empty search

  • Bebê Natureza

    Bebê Natureza’ s 5th gathering took place this morning with families enjoying being outdoors with their children in a beautiful sunny morning, benefitting from educational talks which included topics such as children’s dental care and healthy food. Recreational activities and a walk in the wetlands were very much appreciated by all participants. On REGUA’s behalf, a heart-felt THANK YOU to all.

  • Fauna Monitoring

    When species monitoring is the subject, perseverance is but essential. We have received at REGUA for eleven months, Hugo Daniel Anselmo, a researcher and master's student in Ecology and Environment from the University of Oporto/Portugal. The twenty-three-year-old youngster came to REGUA to finalise his master's thesis, focussing on the behaviour of pumas, especially between the dry and rainy seasons of the Atlantic Forest. According to him, the climate directly influences the behaviour of animals in this region. To carry out the study, camera traps mounted in trees amid the forest were installed, recording images of animals approaching it through motion sensors. The project takes place in REGUA and is part of the Atlantic Forest Paths scope to which Hugo's co-advisor, André Molanna, belongs. In the videos captured through photo traps, it is possible to observe details and customs of each species belonging to fauna around the region.

  • Inauguration of the Macacu Waterfall Lookout

    REGUA was present at the grand opening event of the Cachoeiras de Macacu Belvedere. We’ll be able to admire the Atlantic Forest inside State Park Três Picos, which is located in the eastern part of the Serra do Mar mountain range at the botom of Guanabara Bay. The Park acts in the preservation of rare, endemic and endangered species of native fauna or flora; it integrates the central ecological corridor of the Atlantic Forest in the State of Rio de Janeiro; it ensures the maintenance of water springs and bodies that supply its surrounding cities and stimulates recreation activities, environmental education and scientific research. We are aligned with the Park’s mission and are happy to be able to stop for a break and enjoy the lush Atlantic Forest view.

  • Before and After

    As part of REGUA's land purchase strategy for conserving the Guapiacu watershed, "km 12" area was acquired in 2021 with the generous support of Boden Company. Seven hectares of degraded land were restored (with over 100 different Atlantic Forest species grown in REGUA's nursery) through Projeto Guapiaçu. REGUA's Km 12 restoration initiative was included in "Bosques da Memória" national campaign which consisted in the planting of native trees in memory of those lost to Covid-19 and in gratitude to front-line health professionals working in Brazil. A young, healthy and vibrant forest is developing under REGUA's surveillance for posterity.

  • Fauna Survey

    Luísa Genes, a PhD student from Stanford University in the USA, together with Ângelo Correia (Esalq/USP), expert in the identification of plants, seeds and fruits of the Atlantic Rainforest, study the diet of tapirs in support of the local reintroduction program for this species led by Refauna. Since the tapirs were released in REGUA, these researchers have been helping us to understand more about the Tapir diet as they transition into their new life in the reserve. Today they walked the forest with REGUA’s ranger Rildo, documenting the seeds and fruits present at REGUA and cross-referencing their findings with analysis of the contents of samples of the local tapirs’ diet. A key objective is to ascertain what the released tapirs diet consists of and whether it changes across the seasons.

  • The Common Parauque

    The Common Parauque (Nyctidromus albicollis) is indeed one of the more common nightbirds that we hear when walking our paths at night. Rubies of light reflect our car’s headlights warning that it's on the path just ahead of us. The Parauque's characteristic call is distinctive as is its circular flight to land. However, where does it go during the day? The Common Parauque is very well camouflaged on the forest's leaf litter. Occasionally, we have the opportunity to see a couple of miniature ghostly white oval eggs on the forest floor with no evidence of a nest. What an interesting and enigmatic bird this is!

  • The Tapiti (Sylvilagus brasiliensis)

    Found in all Brazilian biomes, with the exception of a part of the Amazon, this friendly mammal has nocturnal and lonely habits, as it is a pray for various species, such as jaguars, ocelot, some snakes, among other animals, has the habit of living in silence and with a lot of discretion. They are herbivorous animals and their diet consists of fruits, sprouts and vegetable stalks. These rabbits make their nest with leaves or dry grass, lining the inside with their own hair to raise their puppies and usually give birth between one and six puppies. Has anyone ever thought that rabbits are rodents? We think this can be a normal confusion, but for science, the feature that most distinguish the rabbits from rodents is their dentition: they have four incisive teeth (two upper and two lower), while rodents have only two. In addition to the fact that rabbits have beautiful long ears! Data: 07/07/2021

  • Malachite butterflies - Siproeta stelenes meridionalis (Fruhstorfer, 1909)

    For some reason, green is not a common or popular color among neotropical butterflies. Unlike other tropical regions of the old world, only a dozen green butterflies occur in the American tropics (some hairstreaks like Cyanophrys , Evenus , Arcas , Erora , some papilionids and Nessaea ). Among them the most flashy example is the large malachite green butterfly, with brown lines and large square wings of jagged margins. This butterfly is an imitation of the heliconians (long - wing butterflies) Philaethria wernickei and P. dido , from which is virtually distinguished only by its larger size, less elongated wings and the outer margin of the posterior wing strongly serrated with 3 small indentations. It is a common species found in a vast area of ​​the Americas from southern Texas, Florida and the West Indies to Bolivia, Argentina, Paraguay and southern Brazil. Adults are typical butterflies of open forest, found from sea level to 1,500 meters in moist or seasonally disturbed forest habitat, such as clearing, rivers, roads, edges, secondary vegetation and even orchards where many herbaceous Acanthaceae species thrive ( Blechum , Justicia , Ruelia ). Adults are attracted to flowers and fermented fruits, they often rest and sunbathe on the lower foliage on trails, roads or gardens, and females patrol small stretches of this habitat in search of their host plants to lay eggs from where caterpillars hatch and become the next generation. These are black olive with pink and white tubercles, remembering the toxic caterpillars of Parides and Battus (papilionids). The pupae are light-green with some short thorns. Data: 09/04/21

  • 12 - The Trees of the Atlantic Forest: Braúna (Melanoxylon brauna)

    Braúna is an endemic tree species of the Atlantic Forest, belonging to the Leguminosae family, found in the south of Bahia, Espírito Santo, Sao Paulo, Minas Gerais and Rio de Janeiro states. Its conservation status under the “vulnerable” category by the IUCN refers to the intensive use of its compact and heavy wood in the civil industry as well as in the making of musical instruments, tool cables, poles and fence stumps. Brauna is a semi-deciduous, heliophyte species found in both primary and late secondary forests. Its dispersion occurs by the action of the (anemocoric) wind. This individual is in the area of the ​​“Frenchman”, which are our neighbors and partners. Data: 14/07/21

  • There is a new tapir baby in the area!

    In 2020 the tapirs Eva and Valente gave us Curumim, the first calf born in the state of Rio in 100 years. This year, what a joy, Flora and Jupiter gave us another tapir baby! With this second baby, our population is growing. This fills us with pride and confidence in the future where the Atlantic Forest will have tapirs again in abundance. Flora and Jupiter were released in 2018, coming from Klabin's Ecological Park, and since then they are never far away from each other (although they walk alone, as it is normal for Tapirs). In the camera trap video you see Mom Flora and the puppy, which should have about 6 months. We don't know its gender yet, and he was probably born in January, like Curumin last year. We know this thanks to the monitoring we do together with @projetoguapiacu, our super partner in the contract to reintroduce the tapirs here at Regua. We hope the news of this new life will warm your heart! Data: 21/07/21

  • Ithomiini: the Atlantic Forest butterflies greedy for toxic plants

    Mimicry is a widespread phenomenon in Nature, where some species imitate the morphological and chromatic patterns of others, benefiting from some form of protection due to this similarity with the model. Usually, the model has some physical or biochemical characteristic that makes it detestable to predators. In the case of butterflies, this is usually the presence of toxic substances (usually alkaloids) and/or unpalatable substances in the organism of the models. In the Americas, there is an endemic tribe of the Danainae subfamily of Nymphalidae: the Ithomiini butterflies, around 350 species – many of them popularly nicknamed ‘glasswing butterflies’ due to the transparency of a large part of the surface of their wings – where the majority participate in mimetic rings among themselves and with other Lepidoptera, including the Heliconiinae subfamily and some diurnal moths. In most cases, the mentioned toxic, (unpalatable) chemical compounds in the “bad-tasting” butterfly’s are taken up in the larval stage from the plants on which they feed. In the case of the “glasswings,” the plants used by the larvae are partly Apocynaceae (a source shared with the Danaiini tribe), but most feed on Solanaceae, a botanical family that includes popular vegetables such as tomatoes, potatoes, eggplant and 'giló'. However, many species sequester these alkaloid compounds as adults; males in particular suck alkaloids from the flowers and roots of shrubs, vines or small trees of the Asteraceae family or from the decaying leaves of Boraginaceae. During a walk along one of the butterfly monitoring transects (a section of the Yellow Trail) that had recently been cleared for maintenance, I was able to observe over the course of a week how groups of several species of ‘glasswings’ congregated on the roots of an Eupatorium shrub (Asteraceae) – especially in the early morning and late afternoon – as exemplified in the photo. The species observed sequestering alkaloids from these exposed roots were the following: Episcada striposis , Episcada sylvo , Hypothiris ninonia daeta , Hypothiris euclea lapria , Ithomia agnosia zikani , Ithomia drymo and Pseudoscada erruca. Data: 17/08/21

  • Taxonomic changes in Brazilian Sphingidae

    In 2011, REGUA published its first field guide, A Guide to the Hawkmoths of the Serra dos Órgãos, Southeast Brazil, which described and illustrated the 110 species that can be found in this area. However, since then, a number of taxonomic changes have occurred, which are covered and compiled in a comprehensive article recently published in European Entomologist (Vol 11, No 3 + 4) by J. Haxaire and C. G. Mielke, which provides the most recent list of all species occurring in Brazil, but also introduces several new species. All of these species have been updated on the Hawkmoths of Brazil website, but of particular interest to the REGUA area are: a new species Protambulyx pearsoni has been separated from P. sulphurea and replaces it in Serra dos Órgãos. A new species, Manduca exiguus , was separated from M. contracta and was recorded for the State of Rio de Janeiro, but as far as we know it has not yet been found in the Serra dos Órgãos. Manduca paphus is now recognized as a distinct species and has been split from M. sexta . Nyceryx nephus was elevated to species status based on a single specimen collected at Cachoeiras de Macacu. Isognathus brasiliensis has been split from I. swainsonii and replaces it in the Serra dos Órgãos and southeastern Brazil. Eumorpha orientis is now recognized as a distinct species, having been split from E. obliquus . Xylophanes reussi has been separated from X. marginalis , but both appear to share the same general distribution. A new species, Xylophanes crenulata, has been separated from X. ceratomioides . Only X. crenulata is believed to occur in the Serra dos Órgãos. Two new species Xylophanes alineae and X. soaresi have been separated from X. porcus continentalis , both of which are found in the Serra dos Órgãos. Apparently, it is likely that Errinyis ello will also be divided into two distinct species: the population that feeds mainly on cassava, becoming a pest of this crop, and those that live in the forest, and the entire complex group of the genus Nycerx is also under analysis. Data: 26/11/21

1_edited_edited.png
  • Facebook
  • Instagram
  • Whatsapp

Guapiaçu Ecological Reserve

Address: Faz. Serra do Mar, w/nº, Guapiaçu - Cachoeiras de Macacu/RJ

Postal Code: 28.680-000

Phone: +55 21 98370-6712

E-mail: contato@regua.org.br

SAFETY

100% Safe Environment.
Your Information Is Protected By 256-Bit SSL Encryption.

politof base 2022 branca.png

website developed by

© Guapiaçu Ecological Reserve - All rights reserved
bottom of page