Especialidades JA/Insectos - Avanzado/Respuestas

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Insectos - Avanzado
Asociación General

Estudio de la naturaleza


Destreza: 2
Año de introducción: 1949







1

Tener la especialidad de Insectos.


Para consejos e instrucciones, véase Insectos.


2

Realizar una de las siguientes actividades:
a. Añadir a su colección 50 especies de insectos que representen al menos 10 diferentes órdenes. Las etiquetas deben incluir el nombre del colector, fecha, localidad, el orden, la familia, género y nivel de especie o nombre. (Especímenes montados con descuido y rotas no serán aceptables).
b. Añadir a sus dibujos a color o pinturas 50 especies de insectos que representen al menos 10 diferentes órdenes. Dibujos o pinturas deben ser del tamaño real o más grande, para mostrar los detalles de los pequeños insectos, y en colores naturales. Colocar una etiqueta a los dibujos con la fecha, orden, familia, género y el nombre del nivel de especie.
c. Añadir a sus imágenes de color 50 especies de insectos que representen al menos 10 diferentes órdenes. Todas las imágenes deben estar enfocadas, en primer plano y debidamente etiquetadas, indicando dónde fue fotografiado, fecha de la fotografía, nombres comunes y cada género o nombre del nivel de especie.



3

¿De qué forma las estructuras especiales y los hábitos de los insectos encajan de forma admirable para la vida?



4

Explicar el ciclo de vida de los insectos de cuatro diferentes familias.


Bees

Eggs are laid singly in a cell in a wax honeycomb, produced and shaped by the worker bees. Larvae are initially fed with royal jelly produced by worker bees, later switching to honey and pollen. The exception is a larva fed solely on royal jelly, which will develop into a queen bee. The larva undergoes several moltings before spinning a cocoon within the cell, and pupating. Drones hatch from unfertilized eggs, females (Queens and worker bees) hatch from fertilized eggs. The queen actually can choose to fertilize the egg she is laying, usually depending on what cell she is laying in.


5

Nombrar dos clases de insectos sociales. ¿En qué se diferencian de los insectos no sociales?


Social insects, such as the termites, ants and many bees and wasps, live together in large well-organized colonies that may be so tightly integrated and genetically similar that the colonies of some species are sometimes considered superorganisms.


6

Nombrar al menos cuatro insectos que transmiten enfermedades al hombre. Nombrar al menos una enfermedad trasportada por cada una de ellos.


Mosquito Flea Louse Housefly Tsetse fly
  • Dengue fever
  • Yellow fever
  • Malaria
  • West Nile virus
  • Eastern Equine Encephalitis
  • Western Equine Encephalitis
  • Chikungunya fever
  • La Crosse Encephalitis
  • Bubonic plague
  • Typhus
  • Tapeworms
  • Encephalitis
  • Tularemia
  • Typhus
  • Relapsing fever
  • Typhoid
  • Dysentery
  • Cholera
  • Trachoma
  • Sleeping sickness


7

Hacer uno de los siguientes:


7a

Red aérea



7b

Red de barrido



7c

Red acuático




8

Fabricar y usar una trampa para insectos voladores nocturnos.


An easy way to trap night-flying insects is to suspend a white bedsheet vertically next to a light bulb. Be careful that the bulb does not touch the sheet, as this would be a fire hazard. If possible, use a light bulb that emits ultra-violet light (but be careful to not look at the lit bulb as it can cause eye damage). The insects will be attracted to the light and land on the sheet. They can be picked off by hand.


9

Realizar una de las siguientes actividades:


9a

Identificar a partir de fotos o de insectos vivos uno de cada una de los siguientes familias:


i

Acuáticos



ii

Que comen hojas



iii

Que enrollan hojas



iv

Que perforan madera



v

Que comen papel



vi

Parásitos que viven en el cuerpo de aves o mamíferos


Cat flea

The cat flea's primary host is the domestic cat, but this is also the primary flea infesting dogs in most of the world. The cat flea can also maintain its life cycle on other carnivores and on the Virginia opossum. Rabbits, rodents, ruminants and humans can be infested or bitten, but a population of cat fleas cannot be sustained by these aberrant hosts.

Cat fleas can transmit other parasites and infections to dogs and cats and also to humans. The most prominent of these are Bartonella, the tapeworm Dipylidium caninum, and murine typhus.



9b

Describir las castas de las termitas y abejas


Termites

Kings and Queens
A female that has flown, mated, and is producing eggs, is called a "queen". Similarly, a male that has flown, mated, and remains in proximity to a queen, is termed a "King". These anthropocentric terms have caused great misunderstanding of colony dynamics. Research using genetic techniques to determine relatedness of colony members is showing that colonies are not headed by a single monogamous royal pair. Multiple pairs of kings and queens within a colony are not uncommon. In some families (Rhinotermitidae and Termitidae, and possibly others) sperm competition does not seem to occur, suggesting that only one male (king) generally mates within the colony.
Workers
Worker termites undertake the labors of foraging, food storage, brood, nest maintenance, and some of the defense effort in certain species. Workers are the main caste in the colony for the digestion of cellulose in food and are the most likely to be found in infested wood.
Soldiers
The soldier caste has anatomical and behavioral specializations, providing strength and armor which are primarily useful against ant attack. The proportion of soldiers within a colony varies both within and among species. Many soldiers have jaws so enlarged that they cannot feed themselves, but instead, like juveniles, are fed by workers.

Honey Bees

Queen
A honey bee colony has only one queen, and she is the one that lays all the eggs. If the queen dies or becomes sick, the workers can make a new queen by feeding the larvae royal jelly. As these larvae mature, they attain the ability to lay eggs. They will fight to the death until only one bee remains as the new queen. A fertile queen is able to lay fertilized or unfertilized eggs. The unfertilized eggs develop into drones and the fertilized eggs develop into either workers or virgin queens.
Drones
Drones are male bees. They have no stingers, and their only job is to mate with the queen. Drones do not even feed themselves, but rely on the workers to feed them. The colony does not need drones when the queen is not laying eggs, and needs to conserve its resources to survive the winter. Therefore, drones are not allowed to live in the hive in winter - they are ejected and die. In the spring when the queen lays eggs, they will, being unfertilized, develop into drones.
Workers
The vast majority of honey bees are workers, which are the sterile females. They have many responsibilities throughout their lives:
Age Task
1-2 days Clean the brood cells
3-5 days Feed the worker larvae beebread made of pollen and honey.
6-11 days Feed royal jelly to the queen larva and bee milk, which is just another term for royal jelly, to the 1-3 day old drone and worker larvae.
11-17 days Build cells from wax, repair old cells, and store nectar and pollen brought in by other workers. Early in the worker's career she will exude wax from the space between several of her abdominal segments. Four sets of wax glands, situated inside the last four ventral segments of the abdomen, produce wax for comb construction.
18-21 days Soldier bees hang around near the entrance and attack invaders. Entrance guard bees inspect incoming bees to ensure that they are bringing in food and have the correct hive odor. Other bees will be rejected or attacked with soldier bees. Outer guards may take short flights around the outside of the hive in response to disturbances.
22-42 days The forager and scout bees travel (up to 1.5 miles) to a nectar source, pollen source or to collect propolis.


9c

Comparar el grado de inteligencia exhibidos por un saltamontes o un escarabajo y una hormiga, abeja o avispa.


Ants, bees, and wasps are eusocial insects. Each individual cooperates with the others in the colony. They work together as if they were different parts of a larger organism. This behavior requires a greater degree of intelligence than is exhibited by the likes of grasshoppers and beetles (which are solitary).

The Ant and the Grasshopper is one of Aesop's fables drawing upon this difference. The fable concerns a grasshopper who has spent the warm months singing away while the ant (or ants in some editions) worked to store up food for winter. After the winter has come, the grasshopper finds itself dying of hunger, and upon asking the ant for food is only rebuked for its idleness. The story is used to teach the virtues of hard work and saving, and the perils of improvidence. Some versions of the fable state a moral at the end, along the lines of:

Idleness brings want
To work today is to eat tomorrow
It is best to prepare for the days of necessity




References