Breeding Site Faithfulness, Reproductive Biology, and Adult Survivorship in an Isolated Population of Cassin's Finches

The Condor ◽  
1985 ◽  
Vol 87 (4) ◽  
pp. 494-510 ◽  
Author(s):  
L. Richard Mewaldt ◽  
James R. King
Keyword(s):  
Reproductive Biology ◽  
Breeding Site ◽  
Isolated Population ◽  
Site Faithfulness

scholarly journals Reproductive biology of a bromeligenous frog endemic to the Atlantic Forest: Aparasphenodon arapapa Pimenta, Napoli and Haddad, 2009 (Anura: Hylidae)

2014 ◽  
Vol 86 (2) ◽  
pp. 867-880 ◽  
Author(s):  
AMANDA S.F. LANTYER-SILVA ◽  
MIRCO SOLÉ ◽  
JULIANA ZINA
Keyword(s):  
South America ◽  
Parental Care ◽  
Reproductive Biology ◽  
Atlantic Forest ◽  
Courtship Behavior ◽  
Reproductive Mode ◽  
Breeding Site ◽  
Male And Female

The genus Aparasphenodon is restricted to South America and comprises five poorly studied species which present a straight relationship with bromeliads. Herein we present the reproductive biology of the species Aparasphenodon arapapa. Our observations indicate that A. arapapa is a prolonged breeder, reproducing throughout the year using bromeliads as a calling and breeding site. The tadpoles complete their development inside those plants. Males, females and juveniles may also use the bromeliads as a shelter. We also describe the courtship behavior and the parental care of the species with an evidence of temporary fidelity between male and female and propose a new reproductive mode.

scholarly journals Reproductive Dynamics ofSterna hirundinaceaLesson, 1831 in Ilha dos Cardos, Santa Catarina, Brazil

Scientifica ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-16
Author(s):  
Hélio Augusto Alves Fracasso ◽  
Joaquim Olinto Branco ◽  
Márcio Amorim Efe ◽  
João Pedro Barreiros
Keyword(s):  
Reproductive Success ◽  
Reproductive Biology ◽  
Natural Environment ◽  
Basic Equation ◽  
Breeding Site ◽  
Southern Brazil ◽  
Stages Of Development ◽  
Santa Catarina ◽  
Larus Dominicanus ◽  
South Brazil

In this work, we intend to describe the reproductive dynamics ofSterna hirundinaceain an island from South Brazil. We studied the reproductive biology of this species in its natural environment and provide data on their growth, survival, and reproductive success in Ilha dos Cardos, Santa Catarina, South Brazil. Samplings were carried out daily on the island throughout the reproductive seasons of 2003, 2005, and 2006 and the different stages of development of the chicks were characterized according to age, length of the beak, and plumage characteristics. We provide a basic equationLm=167.91 (1-e-0.062t--0.23)to determine the approximate age of individuals using their body mass. The main cause of chick mortality on the island was natural (63.17% in 2003, 81.41% in 2005, and 79.96% in 2006), whereas predation contributed to mortality in a proportion of 38.83% in 2003, 18.59% in 2005, and 20.04% in 2006. The absence in the area of the chicks’ main predator, Kelp gull (Larus dominicanus), the large number of chicks that reached the final stages of development, and their reproductive success demonstrate that Ilha dos Cardos is an important breeding site for the species in southern Brazil.

Fine structure and possible functions of the hermaphrodite duct of some pulmonate snails (Mollusca: Gastropoda)

1990 ◽  
Vol 48 (3) ◽  
pp. 68-69
Author(s):  
Alan N. Hodgson
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Fine Structure ◽  
Seminal Vesicle ◽  
Reproductive Biology ◽  
Light Microscope ◽  
Light Microscope Level ◽  
Transmission Electron ◽  
Standard Techniques

The hermaphrodite duct of pulmonate snails connects the ovotestis to the fertilization pouch. The duct is typically divided into three zones; aproximal duct which leaves the ovotestis, the middle duct (seminal vesicle) and the distal ovotestis duct. The seminal vesicle forms the major portion of the duct and is thought to store sperm prior to copulation. In addition the duct may also play a role in sperm maturation and degredation. Although the structure of the seminal vesicle has been described for a number of snails at the light microscope level there appear to be only two descriptions of the ultrastructure of this tissue. Clearly if the role of the hermaphrodite duct in the reproductive biology of pulmonatesis to be understood, knowledge of its fine structure is required.Hermaphrodite ducts, both containing and lacking sperm, of species of the terrestrial pulmonate genera Sphincterochila, Levantina, and Helix and the marine pulmonate genus Siphonaria were prepared for transmission electron microscopy by standard techniques.

Comparação de testes coproparasitológicos em criadouro comercial de psitacídeos exóticos

2020 ◽  
Vol 3 (5) ◽  
pp. 100-107
Author(s):  
Marina Camargo de Sousa ◽  
◽  
Julia Ronzani Vial ◽  
Rodrigo Hidalgo Friciello Teixeira ◽  
Andrea Cristina Higa Nakaghi ◽  
...  
Keyword(s):  
Statistical Tests ◽  
Companion Animals ◽  
Clinical Importance ◽  
Breeding Site ◽  
Chi Square ◽  
Fecal Samples ◽  
Breeding Sites ◽  
Specificity And Sensitivity ◽  
Nematode Eggs ◽  
Commercial Breeding

Birds of the psittaciform order, composed by the Psittacidae and Loridae family have several characteristics making them more frequently kept as companion animals, promoting the increase of breeding sites in Brazil. The present study aimed to analyze the specificity and sensitivity of three different coproparasitological tests, Willis, Hoffman and Direto de feces, through statistical tests: Chi-Square and Kappa. 70 fecal samples of exotic parrots were collected from a commercial breeding site and these were submitted to the three tests, totaling 210 coproparasitological exams. Among the tests performed, 29,5% were positive for nematode eggs, cestodes and oocysts. Coproparasitological exams are inexpensive, have clinical importance, indicating the population of endoparasites and therapeutic treatments.

High prevalence of diabetes in young Pima Indians: evidence of phenotypic variation in a genetically isolated population

Diabetes ◽  
1979 ◽  
Vol 28 (10) ◽  
pp. 937-942 ◽  
Author(s):  
P. J. Savage ◽  
P. H. Bennett ◽  
R. G. Senter ◽  
M. Miller
Keyword(s):  
Phenotypic Variation ◽  
Isolated Population ◽  
Pima Indians ◽  
High Prevalence
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