Mimus Research Articles

Implementation of The Role Playing Method to Improve Student Learning Outcomes in The Solar System Subject Science

The research began with observations in May 2023, the purpose of this study was to describe how the role playing method improves student learning outcomes on the solar system at MI Mu'awanah Muslimin Muslimat. This study uses a class action research method in four stages. Each stage has four activities, namely as follows: preparing, implementing, observing, and contemplating. With observation sheet instruments, documentation, and a ten-question essay test, the research data consisted of an analysis of quantitative descriptions of the application of the role of playing learning methods. MI Mu'awanah Muslimin Muslimat class VI students are the subject of this study. After the data was collected, qualitative and quantitative data analysis was carried out. The results showed that MI Mu'awanah Muslimin Muslimat students in Samirejo village had utilized the planning, action, observation, and reflection stages of the role-playing learning approach starting from Cycles 1 and 2. The application of the role-playing method to solar science subjects at MI Mu 'awanah Muslimin Muslimat has the potential to improve student learning outcomes, with the percentage of learning outcomes as evidenced by the class average starting at 69% in the first cycle, and increasing to 88% in the second cycle. The role playing learning method can also be used with different materials, as evidenced by the findings of published researchers and the results are quite satisfactory. Implementation in the field of Limnology education.

Do sex ratio and development differ in sexually size-dimorphic shiny cowbirds (Molothrus bonariensis) parasitizing smaller and larger hosts?

Fil: Tuero, Diego Tomas. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Ecologia, Genetica y Evolucion de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecologia, Genetica y Evolucion de Buenos Aires; Argentina

Evaluacion del crecimiento del pulpo comun Octopus mimus del norte de Chile alimentado con dietas formuladas

Durante 57 dias se comparo el crecimiento y sobreviviencia de pulpos juveniles Octopus mimus del norte de Chile alimentados con tres diferentes dietas: dos dietas humedas (A y B) aglutinadas con solucion de gelatina embutidas en tripa de cordero y una dieta control (C) natural. La dieta (A) fue elaborada en base a una mezcla de filete triturado del pescado Cheilodactylus variegatus con harina de pellet para salmon, la dieta (B) con pasta de almeja ( Protothaca thaca ) mezclada con filete de Ch. variegatus y la dieta control consistio en el suministro de almejas frescas congeladas (C). Basado en un diseno experimental de medidas repetidas, los pulpos se mantuvieron individualmente en estanques de 70 L con circulacion de agua de mar y aireacion permanente. Los pulpos que consumieron la dieta B no experimentaron mortalidad y la dieta control C presento mortalidad del 16,7%, sus crecimiento fueron similares ( P > 0,05) con tasas de crecimiento absoluta (AGR) de 7,0 ± 0,91 (g d -1 ) y 6,6 ± 1,10 (g d -1 ) respectivamente. Los pulpos alimentados con la dieta A registraron mortalidad de 33,3% y tasa de crecimiento absoluta negativa, AGR= -1,70 ± 0,37 (g d -1 ). La dieta A que contenia como ingrediente pellet para salmon molido como harina no tuvo una adecuada aceptacion y los ejemplares experimentaron disminucion de su peso. La dieta B preparada con gelatina de origen animal como aglutinante, no implico un efecto negativo en la palatabilidad y aceptabilidad en comparacion al control basada en almeja fresca congelada, incluso los organismos lograron crecimientos similares. Los resultados permitiran a futuro mejorar la calidad nutricional de dietas artificiales para maximizar el crecimiento de O. mimus en cautiverio.

Rapanea ferruginea (Ruiz & Pav.) Mez. (Myrsinaceae) como uma importante fonte alimentar para as aves em uma mata de galeria no interior do Estado de São Paulo

Characteristic of humid habitats, Rapanea ferruginea produces globose drupes containing a single seed covered by a thin black-purplish pulp. The feeding behavior and the contribution of birds in dispersing R. ferruginea fruits was examined in a gallery forest edge in Sao Manuel (22°43’S, 48°34’W), state of Sao Paulo, southeastern Brazil. In 38 hours and 40 minutes of focal observations carried out between October 20 to November 12, 2005, an amount of 11618 fruits were consumed by 31 bird species, probably due to both superabundance of food and exposure of fruits on tree. From the total, 25 species could be considered potential seed dispersers by swallowing the whole diaspore and having short and frequent visits. The most common feeder were Turdus amaurochalinus Cabanis, 1851, Dryocopus lineatus (Linnaeus, 1766) and Turdus leucomelas Vieillot, 1818, accounting for 43% of the total fruits consumed, being the former the most frequent in R. ferruginea . The birds involved removed fruits mainly by the picking technique, while hanging was the least employed, but for Vireo olivaceus (Vieillot, 1817) and D. lineatus . Aggressive interactions were minimal, being Mimus saturninus Hellmayr, 1903 the responsible for most interespecific encounters, in contrast to intraspecific actions dominated by T. amaurochalinus and T. leucomelas .

Role of chatburst versus song in the defense of fall territory in mockingbirds (Mimus polyglottos).

Ce type d'appel (chatburst) est produit par les deux sexes, principalement a l'automne et pour induire un contre-appel de la part des conspecifiques; il est le plus frequemment associe a la defense du territoire

A Review of the Genus Neogonatopus for North America (Hymenoptera: Dryinidae)1

The genus Neogonatopus Perkins is redescribed. Keys are included to separate genera in the Gonatopodinae and species of Neogonatopus . Seven species are included in the genus as follows: ombrodes Perkins [= punctatus (Fenton)]; contortulus (Patton) ; pallidiceps Perkins; agropyrus (Fenton); niger (Fenton) ; fentoni , n. sp.; and grandis , n. sp. Other species previously placed in Neogonatopus are removed as follows: brunnescens Perkins, erythrodes Perkins and obscurissimus Perkins all transferred to Gonatopus; mimus Perkins transferred to Agonatopus; mimoides Perkins transferred to Epigonatopus; and longitarsus (Ashmead) transferred to either Pseudogonatopus or Haplogonatopus . Illustrations are included for most known males and females of all species. Present distributions and some rearing information are also given.