scholarly journals The mechanical defence advantage of small seeds

2016 ◽  
Vol 19 (8) ◽  
pp. 987-991 ◽  
Author(s):  
Evan C. Fricke ◽  
S. Joseph Wright
Keyword(s):  
Mechanical Defence

scholarly journals Differential herbivore damage to calcicolous lichens by snails

1993 ◽  
Vol 25 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Lars Fröberg ◽  
Anette Baur ◽  
Bruno Baur
Keyword(s):  
Laboratory Experiment ◽  
Outer Layer ◽  
Land Snails ◽  
Lichen Species ◽  
Snail Species ◽  
Herbivore Damage ◽  
Mechanical Defence ◽  
Calcareous Rock ◽  
The Baltic

AbstractA laboratory experiment was conducted to determine the damage caused by snail grazing to 35 calcicolous lichen species and cyanobacteria from the Baltic island of Oland, Sweden. Individuals of four species of land snails (Balea perversa, Chondrina cliema, Clausilia bidentata and Helicigona lapicida) were allowed to graze on identified lichen species growing on pieces of limestone. Snail grazing on thalli and ascocarps was classified into four categories ranging from no damage to completely eaten. In general, some lichen species were heavily grazed, whereas others were only slightly damaged or not injured. Aspiciha calcarea, Tephromela atra and Verrucaria nigrescens were preferred by all snail species except Chondrina cliema. In general, lichen thalli that were not immersed in the calcareous rock and cyanobacteria were preferred, whereas ascocarps were avoided by one of the snail species (C. clienta). Immersed perithecia with a carbonized outer layer were avoided by all snail species except C. bidentata. Possibilities of chemical and mechanical defence properties in calcicolous lichens are discussed.

Red young leaves have less mechanical defence than green young leaves

Oikos ◽  
2012 ◽  
Vol 122 (7) ◽  
pp. 1035-1041 ◽  
Author(s):  
Ying-Zhuo Chen ◽  
Shuang-Quan Huang
Keyword(s):  
Young Leaves ◽  
Mechanical Defence

scholarly journals Seed developmental patterns in Banksia attenuata R. Br. and B. laricina C. Gardner in relation to mechanical defence costs

1991 ◽  
Vol 117 (1) ◽  
pp. 109-114 ◽  
Author(s):  
W. D. STOCK ◽  
J. S. PATE ◽  
E. RASINS
Keyword(s):  
Developmental Patterns ◽  
Mechanical Defence ◽  
Banksia Attenuata

scholarly journals Microscopic variability in mechanical defence and herbivory response in microphyllous leaves of tropical herb species from Serra do Cipó, Brazil

2010 ◽  
Vol 33 (2) ◽  
pp. 237-246 ◽  
Author(s):  
Sérvio Pontes Ribeiro ◽  
Tatiana Lopez Corrêa ◽  
Hildeberto Caldas de Sousa
Keyword(s):  
Serra Do Cipó ◽  
Mechanical Defence ◽  
Herb Species

Spines as a mechanical defence: the effects of fertiliser treatment on juvenile Acacia tortilis plants

2003 ◽  
Vol 24 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Juan H. Gowda ◽  
Benedicte R. Albrectsen ◽  
John P. Ball ◽  
Mikael Sjöberg ◽  
R.Thomas Palo
Keyword(s):  
Acacia Tortilis ◽  
Mechanical Defence

scholarly journals Tonsillar outbreak infection – main clinical manifestations

2015 ◽  
Vol 10 (4) ◽  
pp. 338-341
Author(s):  
Octavian Dragoş PALADE ◽  
◽  
Alina OPREA ◽  
Mioriţa TOADER ◽  
Corneliu TOADER ◽  
...  
Keyword(s):  
Immune Response ◽  
Granulation Tissue ◽  
Immunoglobulin A ◽  
Clinical Manifestations ◽  
Mechanical Defence ◽  
Natural Barrier

The tonsill represents a natural barrier against various infectious pathogens. Around the tonsillar crypts, the tissues produce an area of mechanical defence barrier formed of granulation tissue, neoformation vascularization and leukocytes. In this region a series of complex immunological processes take place, the central role being occupied by immunoglobulin A. Tonsillar outbreak infection is a particular feature of immune response, generating numerous imunopathologic reactions.

Mechanical defence in seeds to avoid predation by a granivorous ant

2008 ◽  
Vol 95 (6) ◽  
pp. 501-506 ◽  
Author(s):  
Jordi Oliveras ◽  
Crisanto Gómez ◽  
Josep M. Bas ◽  
Xavier Espadaler
Keyword(s):  
Mechanical Defence

scholarly journals Sand armour: How it provides plants with an edge up in survival

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Jennifer
Keyword(s):  
Experimental Data ◽  
Functional Significance ◽  
Mechanical Defence

Plants have evolved a dizzying array of morphological and biochemical defences; a deceptively simple one involves sand. Some plants actively coat themselves in sand, termed psammophory, as an ingenious adaptation for survival. While the functional significance of psammophory is understudied, experimental data from Abronia latifolia and Navarretia mellita suggests that it acts as a mechanical defence against herbivory within dune habitats. This defence stems from both the damaging and non-nutritive properties of sand and the lasting detrimental effects it has on herbivore physiology. While sand armour may seem like an unusual adaptation, it certainly can deter herbivores by giving them something to chew on.

Caterpillar attacks plant mechanical defence by mowing trichomes before feeding

1988 ◽  
Vol 13 (2) ◽  
pp. 239-241 ◽  
Author(s):  
P. E. HULLEY
Keyword(s):  
Mechanical Defence
Sign in / Sign up

Export Citation Format

Share Document