Mating behavior, spawning, parental care, and embryonic development of some marine pseudocerotid flatworms (Platyhelminthes: Rhabditophora: Polycladida) in Singapore

2020 ◽  
Vol 139 (2) ◽  
Author(s):  
Samantha Jia Wen Tong ◽  
Rene S.L. Ong
Keyword(s):  
Embryonic Development ◽  
Parental Care ◽  
Mating Behavior

Clutch quality is related to embryonic development duration, hatchling body size and telomere length in the spined toad (Bufo spinosus)

2021 ◽  
Vol 133 (1) ◽  
pp. 135-142
Author(s):  
Marion Cheron ◽  
Frédéric Angelier ◽  
Cécile Ribout ◽  
François Brischoux
Keyword(s):  
Reproductive Success ◽  
Embryonic Development ◽  
Parental Care ◽  
Telomere Length ◽  
Mate Selection ◽  
Hatching Success ◽  
Egg Quality ◽  
Parental Quality ◽  
Complex Interactions ◽  
Development Duration

Abstract Reproductive success is often related to parental quality, a parameter expressed through various traits, such as site selection, mate selection and energetic investment in the eggs or progeny. Owing to the complex interactions between environmental and parental characteristics occurring at various stages of the reproductive event, it is often complicated to tease apart the relative contributions of these different factors to reproductive success. Study systems where these complex interactions are simplified (e.g. absence of parental care) can help us to understand how metrics of parental quality (e.g. gamete and egg quality) influence reproductive success. Using such a study system in a common garden experiment, we investigated the relationships between clutch hatching success (a proxy of clutch quality) and offspring quality in an amphibian species lacking post-oviposition parental care. We found a relationship between clutch quality and embryonic development duration and hatchling phenotype. We found that hatchling telomere length was linked to hatching success. These results suggest that clutch quality is linked to early life traits in larval amphibians and that deciphering the influence of parental traits on the patterns we detected is a promising avenue of research.

scholarly journals Adaptation to monogamy influences parental care but not mating behavior in the burying beetle, Nicrophorus vespilloides

2020 ◽  
Vol 10 (13) ◽  
pp. 6525-6535
Author(s):  
Matthew Schrader ◽  
Madolin K. Keller ◽  
Garrett F. Lucey
Keyword(s):  
Parental Care ◽  
Mating Behavior ◽  
Burying Beetle ◽  
Nicrophorus Vespilloides

Sur l'existence de soins parentaux chez Euproctus montanus (Urodela, Salamandridae)

1981 ◽  
Vol 2 (3) ◽  
pp. 189-194 ◽  
Author(s):  
Marc Alcher
Keyword(s):  
Embryonic Development ◽  
Parental Care ◽  
Egg Laying

AbstractEggs of the Urodele Euproctus montanus were discovered in a torrent in the forest of Zonza (Corsica). Our observations lead to the conclusion that egg-laying in this species takes place in agrouped manner both in space in time, and that the females stay close to their eggs during the embryonic development. Both these characters distinguish this species within its genus and suggest the possible existence of parental care.

Live Confocal Analysis of Fertilization and Early Development

2001 ◽  
Vol 7 (S2) ◽  
pp. 1012-1013
Author(s):  
Uyen Tram ◽  
William Sullivan
Keyword(s):  
Drosophila Melanogaster ◽  
Embryonic Development ◽  
Real Time ◽  
Early Development ◽  
Fluorescent Probes ◽  
Primary Defect ◽  
Fluorescent Analysis ◽  
Dynamic Event ◽  
Enormous Amount ◽  
Fluorescent Studies

Embryonic development is a dynamic event and is best studied in live animals in real time. Much of our knowledge of the early events of embryogenesis, however, comes from immunofluourescent analysis of fixed embryos. While these studies provide an enormous amount of information about the organization of different structures during development, they can give only a static glimpse of a very dynamic event. More recently real-time fluorescent studies of living embryos have become much more routine and have given new insights to how different structures and organelles (chromosomes, centrosomes, cytoskeleton, etc.) are coordinately regulated. This is in large part due to the development of commercially available fluorescent probes, GFP technology, and newly developed sensitive fluorescent microscopes. For example, live confocal fluorescent analysis proved essential in determining the primary defect in mutations that disrupt early nuclear divisions in Drosophila melanogaster. For organisms in which GPF transgenics is not available, fluorescent probes that label DNA, microtubules, and actin are available for microinjection.

Effects of delaying intromissions on the male rat's mating behavior.

1970 ◽  
Vol 70 (3, Pt.1) ◽  
pp. 413-416 ◽  
Author(s):  
Ernest HaRd ◽  
Knut Larsson
Keyword(s):  
Mating Behavior

Ageing: Parental Care and Reproduction Strategies

1995 ◽  
Vol 5 (12) ◽  
pp. 1689-1695 ◽  
Author(s):  
John Thoms ◽  
Peter Donahue ◽  
Doug Hunter ◽  
Naeem Jan
Keyword(s):  
Parental Care ◽  
Reproduction Strategies
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