scholarly journals Reproductive seasonality in two sympatric primates ( Ateles belzebuth and Lagothrix lagotricha poeppigii ) from Amazonian Ecuador

2020 ◽  
Vol 83 (1) ◽  
Author(s):  
Kelsey M. Ellis ◽  
Laura A. Abondano ◽  
Andrés Montes‐Rojas ◽  
Andrés Link ◽  
Anthony Di Fiore
Keyword(s):  
Reproductive Seasonality ◽  
Lagothrix Lagotricha ◽  
Ateles Belzebuth ◽  
Amazonian Ecuador ◽  
Sympatric Primates

scholarly journals Elementos Alu en el análisis filogenético molecular del infraorden Platyrrhini, Primates

2017 ◽  
Vol 27 (1-2) ◽  
pp. 47
Author(s):  
Bertha Ludeña ◽  
Juan Carlos Escobar ◽  
Jean Christophe Pintaud
Keyword(s):  
Alouatta Palliata ◽  
Saimiri Sciureus ◽  
Neighbor Joining ◽  
Lagothrix Lagotricha ◽  
Cebus Albifrons ◽  
Ateles Belzebuth

Los marcadores moleculares Alu: STKI, VP Y HBGF fueron utilizados en el presente trabajo para analizar la filogenia de algunas especies de platirrinos ecuatorianos. Los resultados positivos para la amplificación genómica de estos marcadores en las especies estudiadas: Cebus albifrons , Saimiri sciureus, Ateles belzebuth, Ateles fusciceps, Alouatta palliata y Lagothrix lagotricha revelan que eventos derivados de transposición de elementos Alu han tenido relación con la filogenia de los primates del Nuevo Mundo. El análisis mediante Neighbor-joining de la información obtenida ratifica el posicionamiento de los géneros Alouatta, Ateles y Lagothrix en la familia Atelidae y sugiere una estrecha cercanía entre los géneros Cebus y Saimiri apoyando la inclusión de éstos en un cIado.  

scholarly journals Resistencia Antibiótica de Enterobacterias Aisladas de Monos (Ateles, Callicebus y Lagothrix) en Semicautiverio en un Centro de Rescate, Perú

2017 ◽  
Vol 28 (2) ◽  
pp. 418
Author(s):  
Claudia Medina G. ◽  
Siever Morales C. ◽  
Miluska Navarrete Z.
Keyword(s):  
Escherichia Coli ◽  
Lagothrix Lagotricha ◽  
Ateles Belzebuth

El Perú cuenta con diversos géneros y especies de primates no humanos, dentro de los que se encuentran las especies Ateles belzebuth, Ateles chamek, Callicebus oenanthe, Lagothrix cana y Lagothrix lagotricha cuyos estados de conservación según la Lista Roja de la UICN se encuentran en la categoría amenazada. El objetivo del presente estudio fue determinar el perfil de resistencia antibacteriana de cepas entéricas aisladas de Ateles, Callicebus y Lagothrix en semicautiverio en un centro de rescate, Perú. La toma de muestras se realizó por hisopado rectal en 56 primates no humanos habitantes del Centro de Rescate y Rehabilitación de Primates Ikama Peru. El aislamiento e identificación bacteriana se realizó mediante un protocolo estándar, y la sensibilidad bacteriana mediante la técnica de Kirby-Bauer. Se aislaron 106 cepas bacterianas de la familia Enterobacteriaceae. La especie de mayor prevalencia fue Escherichia coli con 42.5% (45/ 106). Los aislados mostraron mayor grado de resistencia a cefalotina (46.2%), amoxicilina - ácido clavulánico (31.1%), tobramicina (30.2%) y tetraciclina (24.5%).

scholarly journals The LEPR Gene Is Associated with Reproductive Seasonality Traits in Rasa Aragonesa Sheep

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2448
Author(s):  
Kenza Lakhssassi ◽  
Malena Serrano ◽  
Belén Lahoz ◽  
María Pilar Sarto ◽  
Laura Pilar Iguácel ◽  
...  
Keyword(s):  
Amino Acid Change ◽  
Leptin Receptor ◽  
Extreme Values ◽  
Reproductive Traits ◽  
Reproductive Seasonality ◽  
Synonymous Substitutions ◽  
Lepr Gene ◽  
Exon 20 ◽  
First Time

The aim of this study was to characterize and identify causative polymorphisms in the leptin receptor (LEPR) gene responsible for the seasonal variation of reproductive traits in sheep. Three reproductive seasonality traits were studied: the total days of anoestrous (TDA), the progesterone cycling months (P4CM) and the oestrous cycling months (OCM). In total, 18 SNPs were detected in 33 ewes with extreme values for TDA and OCM. Six SNPs were non-synonymous substitutions and two of them were predicted in silico as deleterious: rs596133197 and rs403578195. These polymorphisms were then validated in 239 ewes. The SNP rs403578195, located in exon 8 and leading to a change of alanine to glycine (Ala284Gly) in the extracellular domain of the protein, was associated with the OCM trait, being the G allele associated with a decrease of 12 percent of the OCM trait. Haplotype analyses also suggested the involvement of other non-synonymous SNP located in exon 20 (rs405459906). This SNP also produces an amino acid change (Lys1069Glu) in the intracellular domain of the protein and segregates independently of rs403578195. These results confirm for the first time the role of the LEPR gene in sheep reproductive seasonality.

scholarly journals Habitat characteristics and life history explain reproductive seasonality in lagomorphs

2021 ◽  
Author(s):  
Sandra A. Heldstab
Keyword(s):  
Life History ◽  
Reproductive Output ◽  
Quantitative Measure ◽  
Habitat Characteristics ◽  
Comparative Approach ◽  
Mean Annual Temperature ◽  
Season Length ◽  
Reproductive Seasonality ◽  
Birth Season ◽  
Birth Seasonality

AbstractLagomorphs show extensive seasonal variation in their reproduction. However, the factors causing this large variation have so far mostly been investigated intraspecifically and therefore provide only some exemplary comparisons of lagomorph reproductive seasonality. The present study applies both a categorical description (birth season categories 1–5) and a quantitative measure (birth season length in months) to summarize the degree of birth seasonality in the wild of 69 lagomorph species. Using a comparative approach, I tested the influence of 13 factors, comprising six habitat, five life history and two allometric variables on birth season length in lagomorphs. Leporids mainly show non-seasonal birthing patterns with high intraspecific variation. Their opportunistic breeding strategy with high reproductive output and their large distribution areas across wide latitude and elevation ranges might be the reasons for this finding. Ochotonids reproduce strictly seasonally, likely because they live at northern latitudes, are high-altitude specialists, and occur in limited distribution areas. The most important factors associated with variation in lagomorph birth seasonality are mid-latitude, mean annual temperature and precipitation of a species’ geographical range and life history adaptations including fewer but larger litters in seasonal habitats. Birth seasons become shorter with increasing latitude, colder temperatures, and less precipitation, corresponding to the decreasing length of optimal environmental conditions. Leporid species with shorter breeding seasons force maternal resources into few large litters to maximise reproductive output while circumstances are favourable. Since allometric variables were only weakly associated with reproductive seasonality, life history adaptations and habitat characteristics determine birth seasonality in Lagomorpha.

Reproductive seasonality in wild northern pig-tailed macaques (Macaca leonina)

Primates ◽  
2021 ◽  
Author(s):  
Florian Trébouet ◽  
Suchinda Malaivijitnond ◽  
Ulrich H. Reichard
Keyword(s):  
Reproductive Seasonality ◽  
Macaca Leonina

KARYOTYPES AND REPRODUCTIVE SEASONALITY OF THE GENUS BANGIA (RHODOPHYTA) IN BRITISH COLUMBIA, CANADA1

1983 ◽  
Vol 19 (2) ◽  
pp. 136-145 ◽  
Author(s):  
Kathleen M. Cole ◽  
Beverly J. Hymes ◽  
Robert G. Sheath
Keyword(s):  
British Columbia ◽  
Reproductive Seasonality

The ethnobotany ofCarludovica palmata Ruíz & Pavón (Cyclanthaceae) in Amazonian Ecuador

1992 ◽  
Vol 46 (3) ◽  
pp. 233-240 ◽  
Author(s):  
B. C. Bennett ◽  
R. Alarcón ◽  
C. Cerón
Keyword(s):  
Amazonian Ecuador
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