Long bone histology of Chersina angulata : Interelement variation and life history data

2019 ◽  
Vol 280 (12) ◽  
pp. 1881-1899
Author(s):  
Mohd Shafi Bhat ◽  
Anusuya Chinsamy ◽  
John Parkington
Keyword(s):  
Life History ◽  
Bone Histology ◽  
Long Bone ◽  
History Data ◽  
Life History Data

A revision of the subfamily Haplorchinae Looss, 1899 (Trematoda: Heterophyidae): I. The Haplorchis group

Parasitology ◽  
1964 ◽  
Vol 54 (4) ◽  
pp. 601-676 ◽  
Author(s):  
J. C. Pearson
Keyword(s):  
Life History ◽  
Ventral Sucker ◽  
Genital Pore ◽  
History Data ◽  
Life History Data ◽  
The Family ◽  
Excretory Bladder

Earlier schemes of classification of the family Heterophyidae have been based in large part on such features as shape of body, presence of oral spines, number and position of testes, and distribution of vitellaria (Witenberg, 1929; Ciurea, 1933; Mueller & Van Cleave, 1932). Price (1940a) was the first to make extensive use of features of the ventrogenital complex (ventral sucker, gonotyl, genital pore, terminal male duct) and excretory bladder, and produced the first reasonable classification of both the family Heterophyidae and the superfamily Opisthorchioidea. In despite of the obvious significance of the rationale of Price's approach, later authors (Morozov, 1952, 1955; Yamaguti, 1958) have largely ignored the ventrogenital complex and recently discovered life-history data, and have used much the same sorts of features as earlier authors.

Long-bone development and life-history traits of the Devonian tristichopterid Hyneria lindae

2018 ◽  
Vol 109 (1-2) ◽  
pp. 75-86 ◽  
Author(s):  
Viktoriia KAMSKA ◽  
Edward B. DAESCHLER ◽  
Jason P. DOWNS ◽  
Per E. AHLBERG ◽  
Paul TAFFOREAU ◽  
...  
Keyword(s):  
Life History ◽  
Limb Development ◽  
Life History Traits ◽  
Bone Development ◽  
Bone Histology ◽  
Long Bone ◽  
General Character ◽  
Appendicular Skeleton ◽  
Predatory Behaviour ◽  
Large Size

ABSTRACTHyneria lindae is one of the largest Devonian sarcopterygians. It was found in the Catskill Formation (late Famennian) of Pennsylvania, USA. The current study focuses on the palaeohistology of the humerus of this tristichopterid and supports a low ossification rate and a late ossification onset in the appendicular skeleton. In addition to anatomical features, the large size of the cell lacunae in the cortical bone of the humerus mid-shaft may suggest a large genome size and associated neotenic condition for this species, which could, in turn, be a partial explanation for the large size of H. lindae. The low metabolism of H. lindae revealed here by bone histology supports the hypothesis of an ambush predatory behaviour. Finally, the lines-of-arrested-growth pattern and late ossification of specimen ANSP 21483 suggest that H. lindae probably had a long juvenile stage before reaching sexual maturity. Although very few studies address the life-history traits of stem tetrapods, they all propose a slow limb development for the studied taxa despite different ecological conditions and presumably distinct behaviours. The bone histology of H. lindae would favour the hypothesis that a slow long-bone development could be a general character for stem tetrapods.

Histologic growth dynamic study of Edmontosaurus regalis (Dinosauria: Hadrosauridae) from a bonebed assemblage of the Upper Cretaceous Horseshoe Canyon Formation, Edmonton, Alberta, Canada

2014 ◽  
Vol 51 (11) ◽  
pp. 1023-1033 ◽  
Author(s):  
Evan Vanderven ◽  
Michael E. Burns ◽  
Philip J. Currie
Keyword(s):  
Life History ◽  
Body Size ◽  
Upper Cretaceous ◽  
Growth Dynamics ◽  
Growth Dynamic ◽  
History Data ◽  
Life History Data ◽  
Fundamental Systems ◽  
Horseshoe Canyon Formation ◽  
Upper Campanian

The Danek Bonebed (Edmonton, Alberta, Canada) is a monodominant Edmontosaurus regalis assemblage of the upper Campanian (Upper Cretaceous) Horseshoe Canyon Formation. Bone histology of humeri and femora are used in this paper to test hypotheses about the growth dynamics and palaeobiology of Edmontosaurus. The high number of elements collected from the Danek Bonebed allow for an expansion of the multi-element histological record for hadrosaurs. Results indicate that Edmontosaurus had a growth trajectory similar to other large-bodied dinosaurs and reached the onset of somatic maturity at about 10–15 years of age; however, even the largest elements to preserve lines of arrested growth do not have external fundamental systems. This timing of the onset of somatic maturity agrees with the estimated body size of Edmontosaurus relative to other dinosaurs for which life-history data are available. Vascularity patterns support the hypothesis that edmontosaurs preserved at the Danek Bonebed were not subject to the same extreme seasonal environmental shifts as congenerics preserved at higher latitudes, further supporting overwintering behaviour in the latter.

Assessing plausible rates of population growth in humpback whales from life-history data

2010 ◽  
Vol 157 (6) ◽  
pp. 1225-1236 ◽  
Author(s):  
Alexandre N. Zerbini ◽  
Phillip J. Clapham ◽  
Paul R. Wade
Keyword(s):  
Life History ◽  
Population Growth ◽  
Humpback Whales ◽  
History Data ◽  
Life History Data

scholarly journals A scuttle fly (Diptera: Phoridae) parasitizing a beetle (Coleoptera: Chrysomelidae) in Russia

2001 ◽  
Vol 12 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Henry Disney ◽  
Elena Zvereva ◽  
Mikhail Mostovski
Keyword(s):  
Life History ◽  
History Data ◽  
Life History Data ◽  
Unknown Male

Megaselia opacicornis Schmitz is reported parasitizing the pupae of Melasoma lapponica (L.). The hitherto unknown male of the fly is described and the recognition of the female clarified. Life history data are summarised.

Biological Aspects of a Stochastic Model for Insect Life History Data

1992 ◽  
Vol 21 (6) ◽  
pp. 1229-1238 ◽  
Author(s):  
Patricia L. Munholland ◽  
Brian Dennis
Keyword(s):  
Life History ◽  
Stochastic Model ◽  
History Data ◽  
Life History Data ◽  
Biological Aspects
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