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| Registros recuperados: 40 | |
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| Zanella,Camila M.; Janke,Aline; Palma-Silva,Clarisse; Kaltchuk-Santos,Eliane; Pinheiro,Felipe G.; Paggi,Gecele M.; Soares,Luis E.S.; Goetze,Márcia; Büttow,Miriam V.; Bered,Fernanda. |
| Bromeliaceae is a morphologically distinctive and ecologically diverse family originating in the New World. Three centers of diversity, 58 genera, and about 3,140 bromeliad species are currently recognized. We compiled all of the studies related to the reproductive biology, genetic diversity, and population structure of the Bromeliaceae, and discuss the evolution and conservation of this family. Bromeliads are preferentially pollinated by vertebrates and show marked variation in breeding systems, from predominant inbreeding to predominant outcrossing, as well as constancy in chromosome number (2n = 2x = 50). Autogamous or mixed mating system bromeliads have a high inbreeding coefficient (F IS), while outcrossing species show low F IS. The degree of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bromeliads; Cytogenetics; Genetic diversity; Population structure; Reproductive biology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600017 |
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| Nogueira,Caio dos Santos; Oliveira,Marcela Silvano de; Jacobucci,Giuliano Buzá; Almeida,Ariádine Cristine de. |
| ABSTRACT The main objective of this study was to estimate the morphological sexual maturity of Macrobrachium brasiliense (Heller, 1862) and to analyze the relative growth of the species. During one year of sampling, from July 2012 to June 2013, 199 specimens were collected in a stream located in a Cerrado biome, in the Triângulo Mineiro region, state of Minas Gerais. Once identified and sexed, the length of the carapace, the length of the segments of the chelipeds (ischium, merus, carpus, propodus and dactyl) and width of the pleura were measured (mm). The maximum and mean sizes of the carapace length measured 20.5 mm (Mean: 9.6 ± 4.2 mm) and 20.1 mm (Mean: 7.7 ± 3.4 mm) for males and females, respectively. The propodus length for males, and the pleura... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allometry; Morphological sexual maturity; Reproductive biology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100205 |
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| Breviglieri,Crasso Paulo B.; Esbérard,Carlos Eduardo L.. |
| ABSTRACT The bat Eumops perotis (Schinz, 1821) is broadly distributed in the Americas. Studies on its biology are still scarce and the few studies available are relatively outdated. In the present study, we describe the biology of Eumops perotis in an artificial roost in the municipality of Pindorama, State of São Paulo, southeastern Brazil, which was monitored for 12 months. We captured 50 individuals; 43 adults (34 males and 9 females) and seven juveniles (three males and four females). Nineteen adults were recaptured throughout the year (15 males and four females) during samplings. Males were ~33% heavier than females. Males remained in the roost throughout the year, while females were absent in June, July, and August. The presence of males with scrotal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reproductive biology; Biometrics; Behavior; Diet. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100233 |
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| CAMPOS, Z. M. da S.. |
| O estudo de reprodução dos jacarés amazônicos foi feito no lago Cururu, situado no rio Solimões, AM, em 2001 e 2002. Nos dois anos, entre os meses de novembro a janeiro, foram encontrados 60 (sessenta) ninhos de jacaré-tinga, Caiman crocodilus crocodilus. O tamanho das fêmeas reprodutivas de jacaré-tinga variou de 70,0 a 87,0 cm de comprimento rostro-anal (CRA). O número médio de ovos foi de 25 (DP= 5,6), variando de 14 a 38. O comprimento médio dos ovos foi de 57,8 cm (DP= 3,4) e a largura media foi de 35,9 (DP=3,1). No segundo ano, foram encontrados dois ninhos de jacaré-paguá, Paleosuchus palpebrosus, um deles foi predado e o outro tinha 15 ovos e a fêmea mediu 69 cm de CRA, e dois ninhos de jacaré-açu, Melanosuchus niger. O potencial reprodutivo deve... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Biologia reprodutiva; Amazônia Central; Caiman crocodilus crodilus; Reproductive biology; Central Amazon.; Jacaré; Reprodução.; Reproduction.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/809829 |
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| Krings, M.; Taylor, T.N.; Dotzler, N.. |
| Molecular clock data indicate that the first zygomycetous fungi occurred on Earth during the Precambrian, however, fossil evidence of these organisms has been slow to accumulate. In this paper, the fossil record of the zygomycetous fungi is compiled, with a focus on structurally preserved Carboniferous and Triassic fossils interpreted as zygosporangium-gametangia complexes and resembling those of modern Endogonales. Enigmatic microfossils from the Precambrian to Cenozoic that have variously been interpreted as, or compared to, zygomycetous fungi are also discussed. Among these, the spherical structures collectively termed ‘sporocarps’ are especially interesting because of their complex investments and abundance in certain Carboniferous and Triassic rocks.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Endogonales; Fossil record; Morphology; Reproductive biology; Sporocarp; Zygosporangium-gametangia complex. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/532004 |
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| Bentancourt,Carlos M.; Scatoni,Iris B.; Gonzalez,Alvaro; Franco,Jorge. |
| The effect of seven natural diets on the development and reproduction of Bonagota cranaodes (Meyrick) was evaluated under laboratory conditions. The experiments were carried out at the temperature of 23 ± 1ºC, with 70 ± 10% of RH and a photoperiod of 16:8h (L:D). The larvae were reared on apple, grapevine and honeysuckle (Lonicera japonica). On the first two foods three types of diet were used: spring leaves, summer leaves and fruits. The number of instars varied from five to seven. The larvae reared on apple leaves had, in general, fewer instars than those reared on grapevine and honeysuckle leaves. The duration of larval development differed between diets. The larvae reared on spring apple leaves showed the shortest duration, and those on fruit the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Leafroller; Diet; Host plant; Immature stage; Reproductive biology. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000300004 |
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| López,Sofía; Mabragaña,Ezequiel; Astarloa,Juan Martín Díaz de; González-Castro,Mariano. |
| The aim of the present study provides the first results on the reproductive biology of the anchovy, Anchoa marinii, in a nearby-coastal area of Mar Chiquita coastal lagoon, 37º32'00"S 57º19'00"W, Argentina. To perform this, we employed mainly female gonads, at both microscopic and macroscopic levels. The oocyte diameter distribution and the microscopy analysis of oocytes, showed different batches of growing oocytes, suggesting that the anchovy is a multiple spawner, with constant oocytes recruitment all over the reproductive season. The batch fecundity ranged between 749 and 3,207 oocytes for females, and the relative fecundity ranged from 127 to 422 yolked oocytes per female gram (ovary free). The fecundity estimation has been made with yolked oocytes. No... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clupeiformes; Fecundity; Multiple spawner; Reproductive biology. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100221 |
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| Oliveira,Mário Vitor; Costa-Souza,Ana Carla; Mariano,Rodolfo; Almeida,Alexandre Oliveira. |
| Abstract Studies on fecundity and embryo size have been frequently used to infer about the reproductive potential, embryogenesis, and the energy investment in embryo production in crustaceans. These parameters are relevant to the knowledge of life-history and diversity of reproductive strategies developed by this group. This study addressed the embryo production by the estuarine shrimp Salmoneus carvachoiAnker, 2007, a poorly known caridean shrimp. We investigated whether there was (1) a correlation between fecundity and carapace length, (2) an increase in embryo volume along the embryonic development, and (3) loss of embryos along development. In addition, we investigated whether the esternite length and height and width of the pleura of the second... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caridea; Abdominal space; Embryogenesis; Reproductive biology; Reproductive potential. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100243 |
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| Fonseca,Rosineide Braz Santos; Funch,Ligia Silveira; Borba,Eduardo Leite. |
| This paper discusses the phenological strategies of Melocactus glaucescens Buining & Brederoo, M. paucispinus G. Heimen & R. Paul, M. ernestii Vaupel and M. ×albicephalus Buining & Brederoo, species from Chapada Diamantina, northeastern Brazil. Melocactus glaucescens, M. ernestii and M. ×albicephalus occur sympatrically in an area of "caatinga"/"cerrado" vegetation, and M. paucispinus in an area of "cerrado"/"campo rupestre". The superposition of flowering in these sympatric taxa was compared and analyzed. The phenology of M. paucispinus was correlated with both abiotic and biotic factors. Flowering of M. glaucescens and M. ×albicephalus were observed to be continuous (though with moderate peaks of activity), while fruiting was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cactaceae; Hybridization; Melocactus; Phenology; Reproductive biology. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000200006 |
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| Registros recuperados: 40 | |
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