Multi-elemental exposure assessment through concentrations in hair of free-ranging capybaras (Hydrochoerus hydrochaeris Linnaeus, 1766) in the Atlantic Forest remnants, Northeast of Brazil

Chemosphere ◽  
2021 ◽  
Vol 262 ◽  
pp. 127800
Author(s):  
Silvia Gabriela Nunes da Silva Yang ◽  
Iago José Santos da Silva ◽  
Dênisson da Silva e Souza ◽  
Cristina Farias da Fonseca ◽  
Ana Cláudia da Silva Santiago ◽  
...  
Keyword(s):  
Exposure Assessment ◽  
Atlantic Forest ◽  
Hydrochoerus Hydrochaeris ◽  
Forest Remnants ◽  
Free Ranging

Rickettsial infection in free-ranging capybaras (Hydrochoerus hydrochaeris) and their ticks (Acari, Ixodidae) in the Caatinga and Atlantic forest biomes, Northeastern Brazil

2021 ◽  
pp. 100649
Author(s):  
Silvia Gabriela Nunes da Silva Yang ◽  
Dênisson da Silva e Souza ◽  
Ana Cláudia da Silva Santiago ◽  
Raizza Barros Sousa Silva ◽  
Márcia Almeida de Melo ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Northeastern Brazil ◽  
Rickettsial Infection ◽  
Hydrochoerus Hydrochaeris ◽  
Free Ranging

Molecular and serological detection of Leishmania infantum, Toxoplasma gondii, and Leptospira spp. in free-ranging capybaras (Hydrochoerus hydrochaeris) from the Atlantic Forest

2021 ◽  
Vol 67 (1) ◽  
Author(s):  
Silvia Gabriela Nunes da Silva Yang ◽  
Dênisson da Silva e Souza ◽  
Ana Cláudia da Silva Santiago ◽  
Raizza Barros Sousa Silva ◽  
Pollyanne Raysa Fernandes de Oliveira ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Atlantic Forest ◽  
Leishmania Infantum ◽  
Serological Detection ◽  
Hydrochoerus Hydrochaeris ◽  
Leptospira Spp ◽  
Free Ranging

Parasites and health status of free-ranging capybaras (Hydrochoerus hydrochaeris) in the Atlantic Forest and Caatinga biomes of Brazil

2021 ◽  
Vol 23 ◽  
pp. 100503
Author(s):  
Dênisson S. Souza ◽  
Silvia G.N.S. Yang ◽  
Anny C.A. Alves ◽  
Rebeka M. Pontes ◽  
Cleyton C.D. Carvalho ◽  
...  
Keyword(s):  
Health Status ◽  
Atlantic Forest ◽  
Hydrochoerus Hydrochaeris ◽  
Free Ranging

Acute Cecal Tympany During Chemical Restraint in Free-Ranging Capybara (Hydrochoerus hydrochaeris) - Iatrogenic Cause and Treatment

2019 ◽  
Vol 12 (3) ◽  
pp. 117-122
Author(s):  
Derek Rosenfield ◽  
Mario Ferraro ◽  
Priscila Yanai ◽  
Claudia Igayara ◽  
Cristiane Pizzutto
Keyword(s):  
Chemical Restraint ◽  
Hydrochoerus Hydrochaeris ◽  
Free Ranging

Dung beetle communities of altitudinal Atlantic forest remnants: diversity and composition

2021 ◽  
Author(s):  
J. Barretto ◽  
J. C. S. da Cunha ◽  
F. Silva ◽  
R. C. Moura
Keyword(s):  
Atlantic Forest ◽  
Dung Beetle ◽  
Forest Remnants

scholarly journals Small mammal glucocorticoid concentrations vary with forest fragment size, trap type, and mammal taxa in the Interior Atlantic Forest

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sarah A. Boyle ◽  
Noé U. de la Sancha ◽  
Pastor Pérez ◽  
David Kabelik
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Acute Stress ◽  
Physiological Stress ◽  
Fragment Size ◽  
Hair Shaft ◽  
Forest Fragments ◽  
Forest Fragment ◽  
Trapping Methods ◽  
Free Ranging

AbstractSpecies that live in degraded habitats often show signs of physiological stress. Glucocorticoid hormones (e.g., corticosterone and cortisol) are often assessed as a proxy of the extent of physiological stress an animal has experienced. Our goal was to quantify glucocorticoids in free-ranging small mammals in fragments of Interior Atlantic Forest. We extracted glucocorticoids from fur samples of 106 small mammals (rodent genera Akodon and Oligoryzomys, and marsupial genera Gracilinanus and Marmosa) from six forest fragments (2–1200 ha) in the Reserva Natural Tapytá, Caazapá Department, Paraguay. To our knowledge, this is the first publication of corticosterone and cortisol levels for three of the four sampled genera (Akodon, Oligoryzomys, and Marmosa) in this forest system. We discovered three notable results. First, as predicted, glucocorticoid levels were higher in individuals living withing small forest fragments. Second, animals captured live using restraint trapping methods (Sherman traps) had higher glucocorticoid levels than those animals captured using kill traps (Victor traps), suggesting that hair glucocorticoid measures can reflect acute stress levels in addition to long-term glucocorticoid incorporation. These acute levels are likely due to urinary steroids diffusing into the hair shaft. This finding raises a concern about the use of certain trapping techniques in association with fur hormone analysis. Finally, as expected, we also detected genus-specific differences in glucocorticoid levels, as well as cortisol/corticosterone ratios.

Nematodes of Amphisbaena vermicularis Wagler, 1824 (Squamata, Amphisbaenidae) from Brazilian Atlantic Forest remnants

2021 ◽  
Vol 55 (19-20) ◽  
pp. 1227-1236
Author(s):  
Leonardo Pessoa Cabus Oitaven ◽  
Geraldo Jorge Barbosa de Moura ◽  
Felipe da Silva Ribeiro ◽  
Elizardo Batista Ferreira Lisboa ◽  
Jaqueline Bianque Oliveira
Keyword(s):  
Atlantic Forest ◽  
Brazilian Atlantic Forest ◽  
Forest Remnants

scholarly journals Is the “Centro de Endemismo Pernambuco” a biodiversity hotspot for orchid bees?

2014 ◽  
Vol 74 (3 suppl 1) ◽  
pp. S078-S092 ◽  
Author(s):  
A Nemésio ◽  
JE Santos Junior
Keyword(s):  
Atlantic Forest ◽  
Conservation Status ◽  
Biodiversity Hotspot ◽  
Northeastern Brazil ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Forest Remnants ◽  
First Time ◽  
Forest Preserve

The orchid-bee faunas (Hymenoptera: Apidae: Euglossina) of the three largest forest remnants in the “Centro de Endemismo Pernambuco”, northeastern Brazil, namely Estação Ecológica de Murici (ESEC Murici), RPPN Frei Caneca, and a forest preserve belonging to Usina Serra Grande, in the states of Alagoas and Pernambuco, were surveyed using seventeen different scents as baits to attract orchid-bee males. Eight sites were established in the three preserves, where samplings were carried out using two protocols: insect netting and bait trapping. We collected 3,479 orchid-bee males belonging to 29 species during 160 hours in early October, 2012. Seven species were collected in the “Centro de Endemismo Pernambuco” for the first time. Richness proved to be one of the highest of the entire Atlantic Forest domain, and diversity in some sites, especially at ESEC Murici, revealed to be one of the highest in the Neotropics. Eulaema felipei Nemésio, 2010, a species previously recorded only at ESEC Murici, was found in no other preserve in the region and its conservation status is discussed.

scholarly journals Are orchid bees at risk? First comparative survey suggests declining populations of forest-dependent species

2013 ◽  
Vol 73 (2) ◽  
pp. 367-374 ◽  
Author(s):  
A Nemésio
Keyword(s):  
Atlantic Forest ◽  
Anthropogenic Disturbances ◽  
The Other ◽  
Orchid Bees ◽  
Orchid Bee ◽  
Disturbed Areas ◽  
Eastern Brazil ◽  
Forest Remnants ◽  
Declining Populations ◽  
Comparative Survey

The two largest Atlantic Forest remnants in the state of Espírito Santo, eastern Brazil, namely ‘Reserva Biológica de Sooretama’ (REBIO Sooretama) and ‘Reserva Natural Vale’ (RNV), were surveyed for their orchid-bee faunas. Seventeen scent baits were used to attract orchid-bee males. Three-thousand, two hundred and twenty-five males belonging to 24 species were actively collected with insect nets during 100 hours in March, April and December, 2009. In comparison with a previous study in the same area twelve years before, it is evident that the abundance of all forest-dependent orchid bees analysed declined around 50%, and it was statistically significant (P = 0.022) for Euglossa marianae Nemésio, 2011, the most sensitive to anthropogenic disturbances of all Atlantic Forest orchid bees. On the other hand, the abundance of populations of species tolerant to open or disturbed areas rose. Possible explanations are discussed.

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