scholarly journals Host use in relation to food availability and larval development in the specialist herbivore Epilachna admirabilis (Coleoptera: Coccinelidae)

2005 ◽  
Vol 40 (1) ◽  
pp. 177-184 ◽  
Author(s):  
Masatoshi Takeuchi ◽  
Hisayo Kishikawa ◽  
Masato Tamura
Keyword(s):  
Larval Development ◽  
Food Availability ◽  
Host Use ◽  
Specialist Herbivore

scholarly journals Moderate plant water stress improves larval development, and impacts immunity and gut microbiota of a specialist herbivore

PLoS ONE ◽  
2019 ◽  
Vol 14 (2) ◽  
pp. e0204292 ◽  
Author(s):  
Elena Rosa ◽  
Guillaume Minard ◽  
Johanna Lindholm ◽  
Marjo Saastamoinen
Keyword(s):  
Water Stress ◽  
Gut Microbiota ◽  
Larval Development ◽  
Plant Water ◽  
Specialist Herbivore ◽  
Plant Water Stress

Ocean warming modulates the effects of limited food availability on Paracentrotus lividus larval development

2015 ◽  
Vol 162 (7) ◽  
pp. 1463-1472 ◽  
Author(s):  
Eliseba García ◽  
Sabrina Clemente ◽  
Cataisa López ◽  
Justin S. McAlister ◽  
José Carlos Hernández
Keyword(s):  
Larval Development ◽  
Food Availability ◽  
Paracentrotus Lividus ◽  
Ocean Warming ◽  
Limited Food

Reproduction annd development of Neosilurus ater (Perugia) and Neosilurus hyrtlii Steindachner (Teleostei : Plotosidae) in a tropical Queensland stream

1984 ◽  
Vol 35 (2) ◽  
pp. 187 ◽  
Author(s):  
TM Orr ◽  
NE Milward
Keyword(s):  
Larval Development ◽  
Food Availability ◽  
Mating Behaviour ◽  
Adaptive Significance ◽  
Tropical Streams

The reproduction and development of two plotosid catfishes, N. ater and N. hyrtlii, were investigated in a seasonal tributary of the Ross River, northern Queensland. The fishes were observed to move upstream to spawn during monsoonal flooding. Their mating behaviour, embryology and larval development are described. The adaptive significance of a flood-spawning strategy is discussed in relation to food availability, predation, and aeration in seasonal tropical streams.

Effects of food availability on larval development and inter-instar predation among larvae of Libellula lydia and Libellula luctuosa (Odonata: Anisoptera)

1988 ◽  
Vol 66 (2) ◽  
pp. 543-549 ◽  
Author(s):  
Scott A. Wissinger
Keyword(s):  
Larval Development ◽  
Daphnia Magna ◽  
Food Availability ◽  
Laboratory Experiments ◽  
Larval Mortality ◽  
Size Difference ◽  
Head Width ◽  
Larval Size ◽  
Effect Of Food ◽  
Predation Rates

I conducted two types of laboratory experiments with larvae of the dragonflies Libellula lydia and L. luctuosa. In one experiment I varied the number of Daphnia magna fed daily to these larvae to determine the effect of food availability on growth and survivorship. The time spent in each instar decreased dramatically with increased food availability, but the number of molts did not vary and the size at each molt was only slightly affected. Mortality was low in all but the lowest feeding treatment, despite 2- to 5-fold differences in instar duration. These results suggest that the number and size of instars are determinate in these species, and that starvation is an unlikely cause of larval mortality in nature. In a second experiment I used naturally co-occurring size combinations of L. lydia and L. luctuosa to determine how inter-odonate predation varies as a function of larval size difference. For both intra- and inter-specific combinations, (i) little or no predation occurred between larvae similar in size, (ii) some predation always occurred when larvae differed by more than two instars, and (iii) the number of larvae consumed increased dramatically as a function of instar difference. The proportional difference between the labial (gape) width of the larger instar and the head width of the smaller instar was a good estimator of inter-odonate predation rates across all instar and species combinations. Together these results suggest that the effects of inter-odonate competition and predation can be disentangled in the field by manipulating the instar structure of experimental populations.

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