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Ultrastructural characteristics of the spermatogenesis during the four phases of the annual reproductive cycle of the black myotis bat, Myotis nigricans (Chiroptera: Vespertilionidae)
(2013-10-01)
Myotis nigricans is an endemic species of vespertilionid bat, from the Neotropical region, that resembles temperate zone bats in their reproductive cycle; presenting an annual reproductive cycle with two periods of testicular ...
Female reproductive biology of the lizards Liolaemus sarmientoi and L. magellanicus from the southern end of the world
(British Herpetol Society, 2015-04)
Lizards that live in the harsh climate of the Argentinean Patagonia (40°-53°S) are active for a period restricted to spring and summer when lizards perform vitellogenesis, pregnancy and birth. Herein, we present data on ...
Thermal structure, heat content and stability of two lakes in The National Park of Rio Doce Valley (Minas Gerais, Brazil)
(1989-02-01)
The thermal structure, heat content and stability were studied in Lakes Dom Helvécio and Carioca during an annual cycle. It was found that the maximum heat content, stability and work of the wind in Lake Dom Helvécio ...
Calling activity and vocal repertoire of hypsiboas prasinus (Anura, Hylidae), a treefrog from the Atlantic Forest of Brazil
(Herpetologists League, 2015-06-01)
Vocalizations are important for female attraction and territory delimitation in prolonged breeding anurans. Males of Hypsiboas prasinus display year-round nocturnal calling activity, using herbaceous and bushy vegetation ...
Calling activity and vocal repertoire of hypsiboas prasinus (Anura, Hylidae), a treefrog from the atlantic forest of Brazil
(2015-06-01)
Vocalizations are important for female attraction and territory delimitation in prolonged breeding anurans. Males of Hypsiboas prasinus display year-round nocturnal calling activity, using herbaceous and bushy vegetation ...
Variability of tidal constants in the Río de la Plata estuary associated to the natural cycles of the runoff
(Elsevier, 2014-07)
We analyze the only long-term (47-years long) hourly tide-gauge record available for the Río de la Plata estuary for variability in the amplitude and phase of the dominant principal lunar semi-diurnal (M2) constituent. The ...
Soil chemical attributes, biometric characteristics, and concentrations of N and P in leaves and litter affected by fertilization and the number of sprouts per the Eucalyptus L'Hér. Strain in the Brazilian cerrado
(2018-05-24)
Given the lack of recommendations for the fertilization of Eucalyptus clones in the second production cycle, the effects of fertilizer rates and the number of sprouts per strain in terms of the soil chemical attributes, ...
Phenological patterns and reproductive success of Ceiba pentandra (Bombacaceae) in tropical dry and wet forests of Costa Rica
(Sociedad de Biología de Chile, 2008)
Mobilization of energetic substrates in the endangered catfish steindachneridion parahybae (Siluriformes: Pimelodidae): Changes in annual reproductive cycle in captivity
(2018-01-01)
This study aimed at analyzing the energetic substrate (ES) in the main storage tissues of Steindachneridion parahybae, throughout the reproductive cycle in captivity. Differently from wild, in captivity, feeding is not ...
Annual reproductive cycle of males of the bat Molossus molossus: Seasonal bimodal polyestry, testicular regression, and some aspects of the hormonal control
(2020-12-01)
Bats are mammals that play a fundamental role in the regulation of the ecosystems by, for example, controlling the insect populations. Therefore, insectivorous species, such as Molossus molossus, have become the target of ...