The Impact of Recohabitation on Fertility: Evidence from Life History Data in the Netherlands

2007 ◽  
Vol 38 (4) ◽  
pp. 555-574 ◽  
Author(s):  
Matthijs Kalmijn ◽  
John Gelissen
Keyword(s):  
Life History ◽  
The Netherlands ◽  
History Data ◽  
Life History Data ◽  
The Impact

Analysis of population development and effectiveness of management in resident greylag geese Anser anser in the Netherlands

2010 ◽  
Vol 60 (4) ◽  
pp. 373-393 ◽  
Author(s):  
Chris van Turnhout ◽  
Chris Klok ◽  
Frank Willems ◽  
Bart Ebbinge ◽  
Berend Voslamber ◽  
...  
Keyword(s):  
Life History ◽  
The Netherlands ◽  
Density Dependence ◽  
Management Tool ◽  
Population Development ◽  
Dutch Population ◽  
Management Options ◽  
History Data ◽  
Density Dependent ◽  
Life History Data

AbstractThe resident Greylag goose population in the Netherlands has strongly increased in number which led to conflict with agricultural interests, public concern on goose hunting and legal debate on the need to regulate geese. Such a debate can be facilitated by insight in population development and the effectiveness of management options. In this paper we analyse the historic population development and apply density independent and density dependent models to investigate possible future population development and the impact of management on this development. We explored the influence of density dependence by applying the amount of gosling rearing habitat as the first limiting factor. The models were parameterised with life-history data of two well studied populations during their exponential growth phase as a proxy for the total Dutch population for which life-history data are unavailable. The effectiveness of two management options aimed to reduce population growth: culling birds and egg reduction are assessed with these models. The developed models can be used as a management tool to evaluate the consequences of different measures in advance of their implementation. The results show significant positive growth rates which approximate the growth rate of the total Dutch population based on census data. With density dependence in the amount of gosling rearing habitat the population will grow for another one or two decades before it stabilizes. Of the two considered management options culling birds is more effective in reducing bird numbers than egg reduction. This conclusion holds both under density independent and density dependent conditions.

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.

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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