Fernando Noll - Academia.edu (original) (raw)

Papers by Fernando Noll

Arthropod Structure & Development, May 1, 2022

Sociobiology, 2009

ABSTRACT ABSTrACT The Epiponini is a group of social wasps living in polygynic societies. The cas... more ABSTRACT ABSTrACT The Epiponini is a group of social wasps living in polygynic societies. The caste dimorphism varies from incipient to well distinct. Morphometric analyses on twelve body parts and ovarian development of Polybia emaciata Lucas 1879, were used to estimate the level of caste differentiation in seven colonies. Physiologic differences were found. The queens the ovaries were inseminated and presented highly developed; in intermediaries as females, ovaries slightly developed and uninseminated, and for the workers the ovaries were not developed and inseminated. Besides, the coloration of the mesosoma and metasoma were darker in workers and intermediates. Morphometric analysis evidenced slight morphological differences. Even though body proportions were not enough to discriminate castes, the fifth sternite of the gaster had important characters that were able to differentiate queens from workers and intermediates. We propose that P. emaciata presents a case of pre-imaginal caste determination, which is not strictly based on size.

FIGURES 7–9. Glottynoides genisei, male.7, frontal head; 8, epipygium; 9, lateral habitus.Scale b... more FIGURES 7–9. Glottynoides genisei, male.7, frontal head; 8, epipygium; 9, lateral habitus.Scale bar = 1mm.

FIGURES 13–16. Scotaena trifasciata, holotype male. 13, frontal head; 14, epipygium; 15, dorsal h... more FIGURES 13–16. Scotaena trifasciata, holotype male. 13, frontal head; 14, epipygium; 15, dorsal habitus; 16, lateral habitus. Scale bar = 1mm.

FIGURE 3. Zethus spp. Zethus wileyi sp. nov., ♂, holotype (a, c, e, g); Z. smithii (b, d, f, i); ... more FIGURE 3. Zethus spp. Zethus wileyi sp. nov., ♂, holotype (a, c, e, g); Z. smithii (b, d, f, i); Z. hilarianus (h). a – b. Antennal hook, lateral inner view. c – d. Right fore leg, oblique lateral view. e – f. Base of S 1, ventral view. g – i. Propodeum, posterior view. Arrows point submedian carinas. Arrow head shows dorsal propodeal aperture. Scales: a-g = 1,0 mm; h-i = 0,5 mm.

Check List, Apr 10, 2015

Pompilocalus includes 55 species, which occur in the southern South America and its range extends... more Pompilocalus includes 55 species, which occur in the southern South America and its range extends up to Ecuador along the Andes. This paper presents new records for three species of Pompilocalus: P. guayamallen Roig-Alsina, P. parvulus Roig-Alsina, and P. tupi Roig-Alsina. These records represent new limits of the distribution range of those species.

Revista de Etologia, Jun 1, 2006

Muitos acreditam que com o seqüenciamento do DNA não será mais necessária qualquer outra informaç... more Muitos acreditam que com o seqüenciamento do DNA não será mais necessária qualquer outra informação, como a relativa ao comportamento, para inferir passos e origens evolutivas. Em nossa opinião, sempre precisaremos de caracteres mais complexos, como os caracteres comportamentais, para a realização de estudos evolutivos. Estudos evolutivos ou filogenias sem referência aos caracteres fenotípicos são necessariamente incompletos. Não há sentido em estudar-se o DNA sem referência ao fenótipo. Com o advento da genômica, o estudo do comportamento pode parecer estar em segundo plano. Entretanto, argumentos importantes em favor desse estudo podem ser levantados. Palavras-chave: Comportamento. Evolução. Genômica. Estudos evolutivos. Cladística. Behavioral data in a genomics age. Many people think that, due to the possibility of DNA sequencing in large quantities, other aspects, such as behavior, are useless for inferring evolutionary paths or origins. In our opinion, we will always need more complex characters, as behavioral characters, for evolutionary studies. Any evolutionary study, any phylogeny, without reference to phenotypic characters are incomplete. There is no point in studying DNA without reference to the phenotype. The advent of genomics may appear to put in a second rank. There are, however, several important arguments on the behalf of behavioral information that need to be raised.

Springer eBooks, Nov 8, 2020

Entomological Science, Sep 25, 2000

Sociobiology, Mar 27, 2013

Trigonalidae comprises species of diurnal parasitic wasps that lay their eggs on the foliage, dep... more Trigonalidae comprises species of diurnal parasitic wasps that lay their eggs on the foliage, depending on a herbivorous primary host to ingest their eggs together with plant material (Weinstein & Austin, 1991). Trigonalids may have a secondary host, such as wasps or tachinid fly larvae, which are predators or parasites of the primary host, and ingest eggs (Gauld & Bolton, 1988; Weinstein & Austin, 1991). Mechanical and chemical stimuli from the host mandibles lead to the eclosion of trigonalid egg (Clausen, 1931), and larvae at the first larval instar penetrates the gut lining into the primary host haemocoel (Weinstein & Austin, 1991). Although primary hosts are not known for social wasps, it is assumed that trigonalid larvae infect their larvae after ingestion of tissues of the primary host (usually caterpillars) by trophallaxis, or they may penetrate directly through the cuticle of the secondary host to gain access to the haemolymph (Weinstein & Austin, 1991). Several Trigonalidae have been recorded as parasi-Abstract Hosts of Trigonalidae include larvae of social paper wasps, which have been considered secondary hosts, supposedly following predation of the primary host (usually caterpillars) by adult wasps. This study provides observations on biological aspects of the parasitism of Apoica flavissima Van der Vecht by Seminota marginata (Westwood), and suggests that social wasps may be both primary and secondary hosts, whereas they extract and chew vegetable fiber.

Sociobiology, Dec 1, 1996

Journal of The New York Entomological Society, Oct 1, 2003

Morphological caste differences and ovary conditions were analyzed in four colonies of Brachygast... more Morphological caste differences and ovary conditions were analyzed in four colonies of Brachygastra augusti collected in different stages of the colony cycle. Differences between castes are distinct suggesting pre-imaginal determination. Many intermediates (non-inseminated ovary-developed females) were found. Because these intermediate females were morphologically similar to workers, it is suggested that they are young ovary-developed workers. Because there is a more evident overlap between queens and workers in the colony in pre-emergence of workers stage, and in three colonies in latter stages, especially in worker-production colonies, it is suggested that smaller queens are probably less viable than larger queens as observed in previously studied epiponines.

Journal of Insect Behavior, May 1, 1997

necrophagy; foraging behavior; Meliponinae; Apidae; stingless bees. INTRODUCTION Insects Collecti... more necrophagy; foraging behavior; Meliponinae; Apidae; stingless bees. INTRODUCTION Insects Collectively exploit a wide range of food sources, but the diets arc limited to one or a few kinds of food in different lineages. They generally encompass carbohydrates, proteins or amino acids, and salts (Roubik, 1989). In bees (Apoi- dea), for example, floral products, nectar (carbohydrates), pollen (proteins), and oils, arc their principal food components (reviewed by Wcislo and Cane, 1996). However, they can also collect urine, feces, and animal carcasses searching for mineral salts, water, and organic compounds (Baumgartner and Roubik, 1989). In stingless bees (Meliponinae), some variations occur. Besides those cited by Schwarz (1948) we have sugars from fruit pulp collection by Trigona spp. (Baumgartner and Roubik, 1989), membracid honeydew by Trigona, Oxytri- gona, Apis, etc. (Larcoa and Sakakibara, 1976; Cortopassi-Laurino, 1977; Cas- tro, 1975; Mariconi, 1963), and extrafloral nectaries (Slansky and Rodriguez, 1987; Roubik, 1989; Roubik et al., 1995; Noll et al., 1996); proteins from soybean bran by Geotrigona inusitata and fungi spores by Apis (Kerr, personal observation); and salts from blood and carcasses by Apis (Chance, 1983; Crcwe, 1985). Knowledge about such habits is limited, and the cases listed above prob- ably include some sporadic events, in which honey and pollen restriction involves temporary exploitation of uncommon sources. Thus, the only group which dis- plays fixed unusual feeding habits is the obligate necrophages [Trigona hypogea group (Camargo and Roubik, 1991)]. They have completely replaced pollen by animal flesh as a protein source (Roubik, 1982; Camargo and Roubik, 1991; I Departamento de Biologia, Faculdade de Filosofia CiSncias e Letras de Ribeir~o Preto, Univer- sidade de Silo Paulo, 14040-901 Ribeir~o Preto--SP, Brazil.

Congresso de Extensão Universitária, 2009

Neotropical Entomology, Nov 14, 2018