scholarly journals Transgenerational body size effects caused by early developmental stress in zebra finches

2005 ◽  
Vol 1 (1) ◽  
pp. 95-97 ◽  
Author(s):  
Marc Naguib ◽  
Diego Gil
Keyword(s):  
Body Size ◽  
Size Effects ◽  
Zebra Finches ◽  
Developmental Stress ◽  
Early Developmental

scholarly journals Implications of nutritional stress as nestling or fledgling on subsequent attractiveness and fecundity in zebra finches (Taeniopygia guttata)

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3628 ◽  
Author(s):  
Mariam Honarmand ◽  
E. Tobias Krause ◽  
Marc Naguib
Keyword(s):  
Early Development ◽  
Taeniopygia Guttata ◽  
Zebra Finches ◽  
Developmental Stress ◽  
Breeding Experiment ◽  
Food Regimes ◽  
Quality Food ◽  
Female Attractiveness ◽  
In Captivity ◽  
Early Developmental

The conditions an organism experiences during early development can have profound and long lasting effects on its subsequent behavior, attractiveness, and life history decisions. Most previous studies have exposed individuals to different conditions throughout development until nutritional independence. Yet under natural conditions, individuals may experience limitations for much shorter periods due to transient environmental fluctuations. Here, we used zebra finches (Taeniopygia guttata) in captivity to determine if conditions experienced during distinctly different early developmental phases contribute differently to male and female attractiveness and subsequent reproduction. We conducted a breeding experiment in which offspring were exposed to food regimes with (a) low quality food provided only during the nestling period, (b) low quality food provided only during the fledgling period, or (c) high quality food throughout early development. We show that despite short-term effects on biometry and physiology, there were no effects on either male or female attractiveness, as tested in two-way mate choice free-flight aviary experiments. In a subsequent breeding experiment, the offspring from the initial experiment were allowed to breed themselves. The next generation offspring from mothers raised under lower quality nutrition as either nestling or fledging were lighter at hatching compared to offspring from mothers raised under higher quality nutrition whereas paternal early nutrition had no such effects. The lack of early developmental limitations on attractiveness suggests that attractiveness traits were not affected or that birds compensated for any such effects. Furthermore, maternal trans-generational effects of dietary restrictions emphasize the importance of role of limited periods of early developmental stress in the expression of environmentally determined fitness components.

Temporal, spatial, and body size effects on growth rates of loggerhead sea turtles (Caretta caretta) in the Northwest Atlantic

2013 ◽  
Vol 160 (10) ◽  
pp. 2711-2721 ◽  
Author(s):  
Karen A. Bjorndal ◽  
Barbara A. Schroeder ◽  
Allen M. Foley ◽  
Blair E. Witherington ◽  
Michael Bresette ◽  
...  
Keyword(s):  
Body Size ◽  
Growth Rates ◽  
Size Effects ◽  
Sea Turtles ◽  
Caretta Caretta ◽  
Loggerhead Sea Turtles ◽  
Northwest Atlantic

scholarly journals Litter size, effects of maternal body size, and date of birth in South American scorpions (Arachnida: Scorpiones)

2009 ◽  
Vol 26 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Sabrina Outeda-Jorge ◽  
Thayná Mello ◽  
Ricardo Pinto-da-Rocha
Keyword(s):  
Body Size ◽  
Litter Size ◽  
Size Effects ◽  
South American ◽  
Maternal Body

Correlations between call characteristics and morphology in male cricket frogs (Acris crepitans).

1996 ◽  
Vol 199 (9) ◽  
pp. 1907-1919
Author(s):  
B E McClelland ◽  
W Wilczynski ◽  
M J Ryan
Keyword(s):  
Body Size ◽  
Size Effects ◽  
Spectral Characteristics ◽  
Morphological Characteristics ◽  
Dominant Frequency ◽  
Advertisement Call ◽  
Acris Crepitans ◽  
Species Specific ◽  
Male Cricket ◽  
Cricket Frogs

We investigated the relationships among spectral and temporal advertisement-call characteristics and the sizes of the laryngeal and ear components thought to underlie the generation and reception of species-specific vocalizations in male cricket frogs (Acris crepitans). We tested the predictions that the volumes of the structural elements necessary for acoustic communication would be correlated with various parameters of the vocalizations. The anatomy of laryngeal and ear structures was reconstructed from serial sections of the heads of male cricket frogs of two subspecies collected from several sites across the range of this species in Texas, USA. The relationships among the anatomy and call parameters were assessed using several univariate and multivariate analyses. Highly significant univariate correlations among the laryngeal components suggest that the temporal and spectral characteristics of the calls are not independently produced. Dominant frequency correlates strongly with most of the other call and morphological characteristics. Removing body size effects, however, removes the relationship between dominant frequency and the volume of the whole larynx and ear. This is also the case for call pulse rate, indicating that for this species both spectral and temporal call parameters are biomechanically related to laryngeal size which is, in turn, largely mediated by body size. General body size effects might also explain the existence of significant relationships between ear size and temporal characteristics of the call that probably do not have a functional basis.

Heritability of blood pressure in 7- to 12-year-old Chinese twins, with special reference to body size effects

1990 ◽  
Vol 7 (6) ◽  
pp. 447-452 ◽  
Author(s):  
Zhiqiang Wang ◽  
Zhen Ouyang ◽  
Dongmei Wang ◽  
Xilin Tang ◽  
D. C. Rao
Keyword(s):  
Blood Pressure ◽  
Body Size ◽  
Special Reference ◽  
Size Effects ◽  
Old Chinese ◽  
Chinese Twins

scholarly journals Consumer and host body size effects on the removal of trematode cercariae by ambient communities

Parasitology ◽  
2018 ◽  
Vol 146 (3) ◽  
pp. 342-347
Author(s):  
Jennifer E. Welsh ◽  
Anke Hempel ◽  
Mirjana Markovic ◽  
Jaap van der Meer ◽  
David W. Thieltges
Keyword(s):  
Body Size ◽  
Size Effects ◽  
Laboratory Experiments ◽  
Feeding Activity ◽  
Removal Rates ◽  
Host Interactions ◽  
Host Body ◽  
Species Specific ◽  
Host Body Size ◽  
Significant Mortality

AbstractParasite transmission can be altered via the removal of parasites by the ambient communities in which parasite–host interactions take place. However, the mechanisms driving parasite removal remain poorly understood. Using marine trematode cercariae as a model system, we investigated the effects of consumer and host body size on parasite removal rates. Laboratory experiments revealed that consumer or host body size significantly affected cercarial removal rates in crabs, oysters and cockles but not in shrimps. In general, cercarial removal rates increased with consumer (crabs and oysters) and host (cockles) body size. For the filter feeding oysters and cockles, the effects probably relate to their feeding activity which is known to correlate with bivalve size. Low infection levels found in cockle hosts suggest that parasite removal by hosts also leads to significant mortality of infective stages. The size effects of crab and shrimp predators on cercarial removal rates were more complex and did not show an expected size match-mismatch between predators and their cercarial prey, suggesting that parasite removal rates in predators are species-specific. We conclude that to have a comprehensive understanding of parasite removal by ambient communities, more research into the various mechanisms of cercarial removal is required.

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