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Publications (29)
Passive acoustic monitoring (PAM) has become a popular method for studying both marine mammal behavior and distribution, especially among cetaceans. The antarctic minke whale (Balaenoptera bonaerensis) occurs in the Southern Hemisphere, and our knowledge concerning its vocal behavior is very limited. Along the coast of Uruguay, minke whales constit...
Dung beetles display complex reproductive behaviors involving sexual findings, sexual recognition, fighting for mates and food used for nesting, sperm competition, and parental care. Over the past 40 years, significant advances have been made regarding the knowledge of various aspects of the sexual and nesting behavior of Neotropical dung beetles....
Dung beetles play an important role in the sustainability of agroecosystems by providing various ecosystem services. The
spatial distribution of species can be affected by vegetation structure and soil type at a small scale. Our study was conducted
in a cattle ranch in which there were two grassland areas with different types of soil (humid silty c...
Los Histéridos son escarabajos predadores asociados
principalmente a cadáveres y estiércol, ya que se
alimentan de huevos y larvas de otros insectos. Son de
interés en la investigación forense y como controladores
de especies parásitas, especialmente moscas. Se
presenta un inventario actualizado de las especies de la
familia en Uruguay, así como un...
A new rove beetle species, Edrabius uruguayensis Martínez-Villar, González-Vainer & Tomasco, sp. nov., associated with the subterranean rodent Ctenomys rionegrensis in Uruguay, is described and illustrated. Photographs, scanning electron micrographs and drawings of the diagnostic character states are provided. The new species is compared with other...
The succession of carrion fauna and the decomposition stages were studied in summer for two years in open pastures of the Department of Paysandú, Uruguay (32°21'5″S; 58°3'37″). Each year, three pig carcasses (Sus scrofa) were placed in wire mesh cages, 100 m apart from each other. Each carcass was surrounded by pitfall traps, and a modified Malaise...
The third instar and pupa of Canthon bispinus Germar are described and illustrated. The larvae were reared from eggs laid by adults under laboratory conditions. Morphology of the two stages is analyzed based on characters at the generic level and compared to that of other species of Canthon Hoffmansegg. The third instar of C. bispinus can be distin...
Species of Phoridae (Diptera) in Uruguay and new records. The Phoridae species detected in Uruguay are presented based on the bibliographical review of the family and the study of specimens deposited in the collection of the University of Cambridge, England. Seven species of Phoridae are recorded in Uruguay: Dohrniphora cornuta (Bigot, 1857), Megas...
Ontherus sulcator (Fabricius) is a species of Dichotomiini sensu lato, which usually constructs paracoprid nests composed only one brood ball per nesting chamber, conforming to Nesting Pattern II. The typical brood ball is spherical with a thin wall and a cylindrical, flattened T-shaped protrusion at the egg chamber pole. This study revealed that f...
The third instar and pupa of Ontherus sulcator Fabricius are described and illustrated. The immature stages were reared from eggs laid by adults under laboratory conditions. The morphology of the larva and pupa is analyzed based on characters at the generic level and compared with those of other related genera. Larval morphology is also compared wi...
This study provides the first record of Mycetophylax simplex (Emery, 1888) for Uruguay and extends the known distribution of this species south in South America. Mycetophylax simplex is currently the only species of the genus that occurs in Uruguay. Workers and queens were captured with pitfall traps in a sandy beach on east coast of Uruguay. Data...
Fannia fusconotata (Rondani, 1868) and Fannia sanihue Domínguez & Aballay, 2008 are recorded for the first time in Uruguay, extending the Neotropical distribution of these taxa eastward in South America. The specimens were collected using modified Malaise traps located above pig carcasses in Pando, Canelones, Uruguay, from February to April 2011. T...
Most studies of sandy beach macrofauna have been restricted to semiterrestrial species and do not include insects when providing species richness and abundance estimates. Particularly, spatio-temporal patterns of community structure of the entomofauna inhabiting these ecosystems have been scarcely documented. This study assessed spatio-temporal dis...
The food relocation, reproductive, and nesting behaviors of Canthon bispinus Germar were studied in terraria at ambient conditions outdoors with three food resources. Individuals fed upon fish meat and dog dung but did not use cow dung. Five kinds of food manipulation behavior were observed: rolling balls, rolling dung pellets, rolling small pieces...
Se determinó la composición y abundancia de la taxocenosis de dípteros muscomorfos en el Cementerio del Buceo, Montevideo, Uruguay en el período Julio/2011-Junio/2012. Se determinó la variación de la abundancia dentro de nichos con distintos tipos de cerramientos y orientación y su relación con la temperatura. También se determinó la variación esta...
Megaselia rufipes (Meigen, 1804) is recorded for the first time in Uruguay, extending the Neotropical distribution of this taxon. The specimens were collected in a cemetery in Montevideo with ball-traps baited with carrion, placed inside crypts, from June to November 2011. Records of M. rufipes for the Neotropical Region tend to be sparse, but it i...
Coprophilous beetles represent an abundant and rich group with critical importance in the functioning of terrestrial ecosystems. Most coprophagous beetles have a stenotopic distribution in relation to vegetation types. Because of this, they are usually very sensitive to environmental changes and are considered well suited as bioindicator organisms....
Abundance of beetle taxa captured in pitfall traps baited with dung in three different ecosystems at Sierra de Minas (Uruguay) between May 2002 and April 2003. UF: Xeric upland forests; OP: open pastures; PP: pine plantations.
A preliminary study on coprophilous and necrophilous Diptera assemblages was done at family level, in a serranía forest in Sierra de Minas, Uruguay. Besides, seasonal structure variations of both assemblages were assessed. Dipterous were sampled monthly during a year, using pitfall traps baited with cow dung and cow liver, which were deployed for a...
This study investigates the species richness and abundance of Drosophila Fallen, 1823 attracted to dung and carrion baited pitfall traps in natural areas with heterogeneous habitats at the Sierra de Minas, Eastern Serranias, southeastern Uruguay. Collecting was carried out on a monthly basis (May 2002 through April 2003). Drosophilids accounted for...
A preliminary study on coprophilous and necrophilous Diptera assemblages was done at family level, in a serranía forest in Sierra de Minas, Uruguay. Besides, seasonal structure variations of both assemblages were assessed. Dipterous were sampled monthly during a year, using pitfall traps baited with cow dung and cow liver, which were deployed for a...
The third instar and pupa of Canthon muticus muticus Harold are described and illustrated. The larvae were reared from eggs laid by adults under laboratory conditions. Morphology of the two stages is analyzed based on characters at the generic level. Larval morphology is compared with that of other species of Canthon Hoffmansegg. Species can be dis...
This study describes the nesting behavior of Uroxys terminalis Waterhouse and reports the preimaginal developmental rates under laboratory conditions (22 degrees C and 60% RH). U. terminalis constructs paracoprid nests containing one brood mass. The mean developmental time from egg to adult was 90 +/- 6.95 days. Mean duration of each pre-imaginal s...
The seasonal activity of Onthophagus hirculus Mannerheim in a natural prairie of Uruguay was studied using physiological age-grading techniques. This beetle is a bi-voltine species, active from spring to autumn. At 22°C the mean development time from egg to adult was 44 days. Females start laying 25-30 days after emergence. During their lifetime, f...
Recent observations of a female of the species Onthophagus hirculus revealed 2 ovaries, with one ovariole for each, and two lateral oviducts. This structural arrangement is highly uncommon in the Scarabaeinae subfamily, a group in which the females present only a left ovary with one ovariole. These new anatomical observations and those of another t...
Canthidium moastum Haroid, 1864 un coleóptero coprófago común en Uruguay. Esta eapecie construye nidos simples y paracópridos. Q desarrollo preimaginal tiene una duración prorrtadio de 44.3 días a 22°C y 60% hr. Su actividad en el campo se extiende desde la primavera hasta el otoño, produciéndose en este período tres picos de abundancia. Se describ...
RESUMEN Se presenta la lista de especies de coleópteros coprófilos y necrófilos recolectados en Sierra de Minas, Uruguay. Se incluye información acerca de la distribución geográfica conocida de las especies, la asociación con el hábitat, las abundancias absolutas y relativas y la determinación del o los grupos funcionales a los que pertenece cada e...
Questions
Question (1)
I sampled a community of insects from different sites for one year, applying three different methods in each site: a malaise trap, 10 pitfall traps and manual collecting (1 hour). I would like to establish with SIMPER analysis the typifying species for each site, and species discriminating between groups. I am not sure if I can use Bray-Curtis similarity index if I have distinct sampling methods and therefore if I can really apply SIMPER.
Can SIMPER be performed with presence/absence data?
Sorry if I made any grammar mistakes, English is not my native tongue.
