scholarly journals Abundance of small mammals in the Atlantic Forest (ASMAF): a data set for analyzing tropical community patterns

Ecology ◽  
2017 ◽  
Vol 98 (11) ◽  
pp. 2981-2981 ◽  
Author(s):  
Marcos S. L. Figueiredo ◽  
Camila S. Barros ◽  
Ana C. Delciellos ◽  
Edú B. Guerra ◽  
Pedro Cordeiro-Estrela ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Data Set ◽  
Community Patterns

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.

scholarly journals Spiders (Arachnida: Araneae) in the semideciduous Atlantic Forest: An ecological and morphological trait dataset for functional studies

2020 ◽  
Vol 8 ◽  
Author(s):  
Ana Munévar ◽  
Pedro Cardoso ◽  
Yolanda Piñanez Espejo ◽  
Gustavo Andres Zurita
Keyword(s):  
Atlantic Forest ◽  
Species Conservation ◽  
Foraging Strategy ◽  
Circadian Activity ◽  
Ecological Traits ◽  
Data Set ◽  
Femur Length ◽  
Functional Studies ◽  
The World ◽  
Number Of Individuals

The semideciduous Atlantic Forest is one of the most diverse ecosystems in the world with a great diversity of spiders. Most spider-related studies in this ecosystem focused on species richness and composition; however, little is known about their trait diversity (including morphological, ecological and/or physiological traits). Two main datasets were compiled to generate a complete record of spider traits for this ecosystem. Here, we present two datasets about 259 species of spiders from the semideciduous Atlantic Forest of Argentina. The trait data set compiled information of morphological and ecological traits such as body size, femur length, ocular distance, foraging strategy, prey range, circadian activity and stratum preference; traits were assessed by species considering sexual dimorphism. The second dataset included information about phenology (season when spiders were collected), number of individuals assessed by species and presence/absence of spiders in the different sample sites. This dataset has high potential to help researchers in recording the state of a component of biodiversity (functional) and contributes with the study of ecosystem services and species conservation.

scholarly journals Richness, abundance, and mass in snake assemblages from two Atlantic Rainforest sites (Ilha do Cardoso, São Paulo) with differences in environmental productivity

2008 ◽  
Vol 8 (3) ◽  
pp. 117-122 ◽  
Author(s):  
Carlos Frederico Duarte Rocha ◽  
Helena Godoy Bergallo ◽  
Carla Fabiane Vera y Conde ◽  
Emerson Brum Bittencourt ◽  
Hilda de Carvalho Santos
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Total Mass ◽  
Sao Paulo ◽  
São Paulo ◽  
Lowland Forest ◽  
Fruit Availability ◽  
Paulo State ◽  
Study Sites ◽  
Capture Rates

We analyzed richness, composition and mass of snakes in two sites in the Atlantic forest of Ilha do Cardoso (25º 03' S and 47º 53' W), an island (22,500 ha), Cananéia municipality, São Paulo State, Brazil. A monthly index of arthropod availability (in mm³) was estimated in each site through capture rates in pit-fall traps. Fallen fruits were collected along trails in the study sites (mass of fruit gave an index of fruit availability) and small mammals were sampled in grids with 120 traps which covered the lowland (5.2 ha) and in the slope forests (3.6ha). The abundance and mass of small mammals were standardized for the size of each sampled area (in g.ha-1). To sample snakes we established 20 pit-fall traps in each area and performed monthly transects in four consecutive days (totaling 1000 m long) along trails in the study sites. Snakes found were measured, weighted marked and released. Abundance and total mass of snakes were standardized by the size of each area. The areas differed consistently in in the productivity of arthropods, fruits and small mammals, and also in richness, composition and total mass of snakes. We found 36 individuals (total mass = 9884 g) of 12 snake species belonging to three Families (Colubridae, Elapidae and Viperidae) in the lowland forest, whereas in the slope forest we sampled only 9 individuals of 2 species (total mass = 1820 g). Our results suggest that the area of lowland forest, showing higher productivity of arthropods, fruits and small mammals, maintains a snake community with a higher richness, diversity and biomass than its slope forest counterpart.

Ticks on small mammals from an ecotone region impacted by rural activities in Brazil

2021 ◽  
Vol 26 (2) ◽  
pp. 427-437
Author(s):  
Rafael Quirino Moreira ◽  
Vanessa Do Nascimento Ramos ◽  
Adriane Suzin ◽  
Diego Garcia Ramirez ◽  
Paulo Ricardo De Oliveira Roth ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Small Mammals ◽  
Mus Musculus ◽  
Tick Species ◽  
Rattus Rattus ◽  
Riparian Forests ◽  
Forest Fragments ◽  
Cerrado Biome ◽  
Didelphis Albiventris

We evaluated the role of communities of small mammals from three distinct areas in a region of Cerrado mixed with Atlantic Forest remains for maintenance of tick fauna. Thirty-nine marsupials (Gracilinanus agilis, n = 34; Marmosa paraguaiana, n = 4; Didelphis albiventris, n = 1) and 33 rodents (Oecomys cleberi, n = 10; Nectomys squamipes, n = 4; Calomys tener, n = 4; Hylaeamys megacephalus, n = 4; Akodon sp., n = 3; Rattus rattus, n = 3; Cerradomys subflavus, n = 2; Mus musculus, n = 2; Rhipidomys macrurus, n = 1) were captured. Solely G. agilis and the four rodent species (N. squamipes, R. macrurus, C. subflavus and Akodon sp.) were infested. Four tick species were collected (Amblyomma dubitatum, Amblyomma sculptum, Ixodes loricatus and Ornithodoros mimon). A. dubitatum was the most abundant tick species on hosts. Capture success was higher in the dry season, but the infestation was similar in both seasons. Forested habitats, particularly riparian forests, resulted in higher number of hosts and ticks collected (from hosts and from vegetation), compared to pastures and anthropized sites. The association between C. subflavus and I. loricatus and between A. dubitatum and N. squamipes observed here is the first recorded in Cerrado biome. Areas with more patches of forest, including the Atlantic Forest fragments, tend to present a richest community of small mammals and associated ticks.

scholarly journals ATLANTIC BIRDS: a data set of bird species from the Brazilian Atlantic Forest

Ecology ◽  
2018 ◽  
Vol 99 (2) ◽  
pp. 497-497 ◽  
Author(s):  
Érica Hasui ◽  
Jean Paul Metzger ◽  
Rafael G. Pimentel ◽  
Luís Fábio Silveira ◽  
Alex A. d. A. Bovo ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Bird Species ◽  
Brazilian Atlantic Forest ◽  
Data Set

Habitat selection by two species of small mammals in the Atlantic Forest, Brazil: Comparing results from live trapping and spool-and-line tracking

2010 ◽  
Vol 75 (2) ◽  
pp. 106-114 ◽  
Author(s):  
Jayme Augusto Prevedello ◽  
Renato Garcia Rodrigues ◽  
Emygdio Leite de Araujo Monteiro-Filho
Keyword(s):  
Habitat Selection ◽  
Atlantic Forest ◽  
Small Mammals ◽  
Live Trapping ◽  
Line Tracking

scholarly journals Small mammals of the Estação Ecológica de Bananal, southeastern Atlantic Forest, Brazil, with description of a new species of Brucepattersonius (Rodentia, Sigmodontinae)

2019 ◽  
Vol 50 (1) ◽  
pp. 1-116 ◽  
Author(s):  
Edson Fiedler de Abreu-Júnior ◽  
Alexandre Reis Percequillo
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Small Mammals ◽  
Sao Paulo ◽  
Sampling Effort ◽  
Dental Morphology ◽  
São Paulo ◽  
Intrapopulation Variation ◽  
Annotated List ◽  
A New Species

The Atlantic Forest harbors an impressive diversity of nonvolant small mammals. Despite having been the target of many ecological and taxonomical studies in the last decades, this group is still poorly known in several aspects – basic information on intrapopulational morphologic variation and proper diagnoses are lacking for many species, even for common taxa. This is related to the fact that large series of specimens from a single locality are extremely rare in scientific collections. A consistent sampling effort was conducted at Estação Ecológica de Bananal, northeastern São Paulo State, throughout seven field expeditions between 2003 and 2011, under the coordination of the Museu de Zoologia da Universidade de São Paulo, resulting in extensive series of nonvolant small mammals. We studied in detail the external and cranio-dental morphology of this sample (575 specimens), that we assigned to 31 known species besides one new species to science. Most species belong to order Rodentia (26 species) from the families Cricetidae (22 species) and Echimyidae (four species); the remaining (six species) are marsupials from the order Didelphimorphia, family Didelphidae. This is one of the most diverse assemblages ever recorded in this biome, and includes some of the rarest endemic rodents of the Atlantic Forest, such as Abrawayaomys ruschii, Blarinomys breviceps, Drymoreomys albimaculatus, Phaenomys ferrugineus, Phyllomys kerri and Rhagomys rufescens. This outstanding richness can be explained by the extensive sampling effort performed for a long period of time. Also, the capture success of the third expedition (8.25%) is among the highest rates obtained in the Atlantic Forest and the extensive use of pitfall traps was fundamental for trapping this high number of species. Herein, we provide an annotated list of nonvolant small mammals occurring at Estação Ecológica de Bananal, with comprehensive analyses of morphological variation and detailed diagnoses that will allow their proper identification, and will provide a sound basis for a better comprehension of the geographic variation of these taxa across the biome. We also present a formal description for a new species of Brucepattersonius from the mountain ranges along the Paraíba do Sul valley. For five species of sigmodontine rodents, we investigate the levels of ontogenetic and sexual variation, and while the first is accentuate in all analyzed species the second does not contribute significantly to intrapopulation variation.

scholarly journals Small terrestrial mammal distributions in Simien Mountains National Park, Ethiopia: a reassessment after 88 years

2020 ◽  
Vol 101 (3) ◽  
pp. 634-647 ◽  
Author(s):  
Evan W Craig ◽  
William T Stanley ◽  
Julian C Kerbis Peterhans ◽  
Josef Bryja ◽  
Yonas Meheretu
Keyword(s):  
Climate Change ◽  
Small Mammals ◽  
National Park ◽  
Natural Habitat ◽  
General Pattern ◽  
Western Slope ◽  
Northern Ethiopia ◽  
Data Set ◽  
Small Mammal Community ◽  
Distribution And Ecology

Abstract Despite the presence of mostly endemic species, the most comprehensive data set on the distribution and ecology of small mammals inhabiting Simien Mountains National Park (SMNP) dated from 1927. The study we carried out and report here provides a unique opportunity to assess the possible role of climate change over the last 88 years on the elevational distribution of mammals in the Ethiopian highlands. Between September and November 2015, three of us (EWC, WTS, YM) collected nonvolant small mammals at four sites (2,900, 3,250, 3,600, and 4,000 m a.s.l.) along the western slope of the Simien Mountains using standardized sampling. Over a 4-week period we recorded 13 species, comprising 11 species of rodents and two of shrews, all endemic to the Ethiopian Plateau. We found the greatest species richness at mid-elevations (3,250 m), consistent with a general pattern found on many other mountains worldwide, but less so in Africa. We compared our species distribution results to the 1927 data set and found upward elevational shifts in species’ ranges, highlighting the role and influence of climate change on the small mammal community. SMNP represents an exceptionally valuable core area of endemism and the best protected natural habitat in northern Ethiopia.

scholarly journals ATLANTIC EPIPHYTES : a data set of vascular and non‐vascular epiphyte plants and lichens from the Atlantic Forest

Ecology ◽  
2019 ◽  
Vol 100 (2) ◽  
pp. e02541 ◽  
Author(s):  
Flavio Nunes Ramos ◽  
Sara Ribeiro Mortara ◽  
Nathalia Monalisa‐Francisco ◽  
João Pedro Costa Elias ◽  
Luiz Menini Neto ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Data Set ◽  
Vascular Epiphyte
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