scholarly journals Evolution of Eggshell Structure in Relation to Nesting Ecology in Non‐Avian Reptiles

2021 ◽  
Author(s):  
D’ Alba Liliana ◽  
Goldenberg Jonathan ◽  
Nallapaneni Asritha ◽  
Parkinson Dilworth ◽  
Zhu Chenhui ◽  
...  
Keyword(s):  
Nesting Ecology ◽  
Eggshell Structure

Grassland bird nesting ecology: video samples of behavior

2018 ◽  
Author(s):  
Christine A. Ribic ◽  
Nicola Koper ◽  
Christoph S. Ng ◽  
Kevin S. Ellison
Keyword(s):  
Nesting Ecology ◽  
Grassland Bird

scholarly journals The formation of a hatching line in the serosal cuticle confers multifaceted adaptive functions on the eggshell of a cicada

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Minoru Moriyama ◽  
Kouji Yasuyama ◽  
Hideharu Numata
Keyword(s):  
Protective Role ◽  
Terminal Phase ◽  
Embryonic Diapause ◽  
Insect Eggs ◽  
Ridge Structure ◽  
Conflicting Demands ◽  
Partial Degradation ◽  
Egg Period ◽  
Eggshell Structure

AbstractInsect eggshells must meet various demands of developing embryos. These demands sometimes conflict with each other; therefore, there are tradeoffs between eggshell properties, such as robustness and permeability. To meet these conflicting demands, particular eggshell structures have evolved in diverse insect species. Here, we report a rare eggshell structure found in the eggshell of a cicada, Cryptotympana facialis. This species has a prolonged egg period with embryonic diapause and a trait of humidity-inducible hatching, which would impose severe demands on the eggshell. We found that in eggs of this species, unlike many other insect eggs, a dedicated cleavage site, known as a hatching line, was formed not in the chorion but in the serosal cuticle. The hatching line was composed of a fine furrow accompanied by ridges on both sides. This furrow-ridge structure formed in the terminal phase of embryogenesis through the partial degradation of an initially thick and nearly flat cuticle layer. We showed that the permeability of the eggshell was low in the diapause stage, when the cuticle was thick, and increased with degradation of the serosal cuticle. We also demonstrated that the force required to cleave the eggshell was reduced after the formation of the hatching line. These results suggest that the establishment of the hatching line on the serosal cuticle enables flexible modification of eggshell properties during embryogenesis, and we predict that it is an adaptation to maximize the protective role of the shell during the long egg period while reducing the barrier to emerging nymphs at the time of hatching.

scholarly journals Sandhill Crane Abundance and Nesting Ecology at Grays Lake, Idaho

2007 ◽  
Vol 71 (4) ◽  
pp. 1067-1079 ◽  
Author(s):  
JANE E. AUSTIN ◽  
ADONIA R. HENRY ◽  
I. JOSEPH BALL
Keyword(s):  
Nesting Ecology ◽  
Sandhill Crane

Eggshell structure, mode of development and growth rate in birds

Zoology ◽  
2008 ◽  
Vol 111 (6) ◽  
pp. 494-502 ◽  
Author(s):  
Ola Karlsson ◽  
Clas Lilja
Keyword(s):  
Growth Rate ◽  
Mode Of Development ◽  
Eggshell Structure

Selected Aspects of the Nesting Ecology of American Alligators in the Okefenokee Swamp

1991 ◽  
Vol 25 (4) ◽  
pp. 448 ◽  
Author(s):  
R. Howard Hunt ◽  
Jacqueline J. Ogden
Keyword(s):  
Nesting Ecology ◽  
Okefenokee Swamp ◽  
American Alligators

Nesting Ecology ofMegachile(Pseudocentron)alleniMitchell (Hymenoptera: Megachilidae) on San Salvador Island, The Bahamas

2014 ◽  
Vol 87 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Carol L. Landry ◽  
Nancy B. Elliott ◽  
Michael R. Vitale
Keyword(s):  
The Bahamas ◽  
Nesting Ecology ◽  
San Salvador ◽  
San Salvador Island

Nesting ecology and reproductive success of mixed-grass prairie songbirds

2021 ◽  
Vol 132 (4) ◽  
Author(s):  
Carolyn A. Gaudet ◽  
Eric N. Green ◽  
R. Mark Brigham ◽  
Stephen K. Davis
Keyword(s):  
Reproductive Success ◽  
Nesting Ecology ◽  
Mixed Grass Prairie ◽  
Mixed Grass

Nesting ecology of Saltmarsh Sharp-tailed Sparrows in a tidally restricted salt marsh

Wetlands ◽  
2002 ◽  
Vol 22 (1) ◽  
pp. 179-185 ◽  
Author(s):  
Deborah A. DiQuinzio ◽  
Peter W. C. Paton ◽  
William R. Eddleman
Keyword(s):  
Salt Marsh ◽  
Nesting Ecology

Nesting Ecology of the Little Blue Heron: Promiscuous Behavior

The Condor ◽  
1982 ◽  
Vol 84 (4) ◽  
pp. 381 ◽  
Author(s):  
David F. Werschkul
Keyword(s):  
Nesting Ecology
Sign in / Sign up

Export Citation Format

Share Document