Bacharelado em Ciências Biológicas (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/5
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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Resultados da Pesquisa
Item Ecologia trófica de Amphisbaena vermicularis Wagler, 1824, (Squamata, Amphisbaenidae) Nordeste, Brasil(2021-12-17) Silva, Pedro Vinicius Freire Guedes da; Moura, Geraldo Jorge Barbosa de; Maciel, Renata Perez; http://lattes.cnpq.br/9083555957024860; http://lattes.cnpq.br/1348666346504103; http://lattes.cnpq.br/5792351278939394Amphisbaena vermicularis is a legless reptile with reduced vision, but with good chemical and sound perception. It is a fossorial animal, the difficulty in studying its behavior, distribution, and ecology. The objective of this work is to analyze the diet of Amphisbaena vermicularis, as well as the parameters related to the trophic ecology of the research. A total of 57 animals (16 males, 14 schoolchildren, 24 juveniles, and 3 unidentified) from the herpetological collection of the Universidade Federal do Ceará were transported. For each individual, eight morphometric measurements were taken: cloacal rostrum length, mandibular width, body width, body height, head width, head width, head length, and tail length, these measurements were used to quantify the degree of sexual dimorphism of the species. Stomach contents were developed and measured in length and width. Of the 57 holding 32 aggregates with empty stomachs, while 25 had identifiable prey in the digestive tract, the most found item was Formicidae, with a frequency of 44.12%, followed by Blattaria with 23.53%, Coleoptera larvae with 17 .65%, Isoptera with 8.82%, and Coleoptera and Araneae tied with 2.94%, totaling 137 food items. Statistical tests indicated an absence of variation between the diet of males, persists, and juveniles. The results of the present work reveal that A. vermicularis is a generalist predator feeding on arthropods randomly, according to their body capacity.Item Distribuição espaço-temporal da fauna ictioplanctônica e de Chaetognatha e sua interação no litoral norte de Pernambuco(2020-01-27) Silva, Jade Beatriz Alves da; El-Deir, Ana Carla Asfora; http://lattes.cnpq.br/4822569793807941; http://lattes.cnpq.br/7346027083165974The success of the early stages of life in fish influence recruitment and determines the structure of adult populations. In the larva period, these individuals are more vulnerable to predation and other factors that affect their survival and/or mortality. Chaetognathas are described as voracious predators and can feed on fish larvae, thus affecting the distribution and success of ichthyoplankton. In this context, the study aimed to analyze the spatial distribution of ichthyoplankton in the Jaguaribe River estuary and Jaguaribe beach, correlating with the occurrence of Chaetognatha. The collections were carried out in August, September, October and December 2017 in three points, these were distributed at the mouth of the Jaguaribe River, bursting Jaguaribe beach and corral. The collected individuals were fixed in situ in 4% saline formaldehyde and later screened in laboratory and stored in ethanol 70%. 88 larvae were collected, identified in three orders and six families, including: Achiridae, Engraulidae, Carangidae, Clupeidae, Gerreidae and Gobiidae. The most abundant family was Engraulidae, being present in all months and points sampled. The surf zone was the site with the highest abundance of larvae. 574 Chaetognathas were collected and identified in one order, two families and three species. These were present in all sampled points, however, they presented greater abundance in the corral region. A total of 5305 eggs were collected, of these 4161, they were eggs of Engraulidae. The month of September presented the highest abundance of eggs, with 78.4% of the total collected. When comparing the distribution of ichthyoplankton and Chaetognathas, an overlap was observed in the occurrence of these. The spatial distribution of ichthyoplankton is highly influenced by the occurrence of Chaetognathas, since these are large predators. With a decline in the abundance of Chaetognathas there is an increase in ichthyoplankton, proving the existence of an inversely proportional relationship.