Serf and Waif Colonization: Distribution and Dispersal of Invertebrate Species in Faroe Island Settlement Areas

1987 ◽  
Vol 14 (1) ◽  
pp. 89 ◽  
Author(s):  
Pehr H. Enckell ◽  
Sven-Axel Bengtson ◽  
Bo Wiman
Keyword(s):  
Faroe Island ◽  
Invertebrate Species ◽  
Settlement Areas

The Larvae of Mass Benthic Invertebrate Species in the Plankton of Sevastopol Bay

2002 ◽  
Vol 38 (3) ◽  
pp. 8
Author(s):  
V. V. Murina ◽  
Ye. V. Lisitskaya ◽  
V. K. Shalyapin
Keyword(s):  
Benthic Invertebrate ◽  
Invertebrate Species ◽  
Sevastopol Bay

The Effect of Invertebrate Infestation on Green Turtle (Chelonia mydas) Nests on Kazanlı Beach, Mersın, Turkey

2020 ◽  
Vol 27 (5) ◽  
pp. 245-256
Author(s):  
Cemil Aymak ◽  
Aşkın Hasan Uçar ◽  
Yusuf Katılmış ◽  
Eyup Başkale ◽  
Serap Ergene
Keyword(s):  
Green Turtle ◽  
Hatching Success ◽  
Negative Relationship ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Faunal Composition ◽  
Independent Variables ◽  
Invertebrate Species ◽  
First Time ◽  
Nesting Season

In this study invertebrate infestation in green turtle (Chelonia mydas) nests were recorded for the first time for Kazanlı beach, Mersin, Turkey. For this aim, in 2006 nesting season, 294 natural intact green turtle nests were sampled to examine their contents and invertebrate infestation was found in 76 (25.85% of the total sampling green turtle nests). These infested nests were examined in terms of the invertebrate faunal composition. The specimens found in the green sea turtle nests were identified to order, family or genus levels and they were represented in 5 orders. These invertebrate groups are Elater sp. larvae (Elateridae; Coleoptera), Pimelia sp. larvae (Tenebrionidae; Coleoptera), Enchytraeidae (Oligochaeta), Cyrptostigmata (Acari), Oniscidae (Isopoda), Formicidae (Hymenoptera). Elater sp. was the most common invertebrate group in the green turtle nests. According to student t test, we found statistically significant differences between 7 independent variables and invertebrate species presence. Furthermore, logistic regression analysis explained that there is a negative relationship between hatching success rate and invertebrate species presence.

scholarly journals GENETIC LOAD IN NATURAL POPULATIONS: IS IT COMPATIBLE WITH THE HYPOTHESIS THAT MANY POLYMORPHISMS ARE MAINTAINED BY NATURAL SELECTION?

Genetics ◽  
1974 ◽  
Vol 77 (3) ◽  
pp. 569-589
Author(s):  
Martin L Tracey ◽  
Francisco J Ayala
Keyword(s):  
Drosophila Melanogaster ◽  
Natural Selection ◽  
Natural Population ◽  
Natural Populations ◽  
Genetic Load ◽  
Structural Genes ◽  
Invertebrate Species ◽  
Average Proportion ◽  
Mean Fitness ◽  
The Mean

ABSTRACT Recent studies of genetically controlled enzyme variation lead to an estimation that at least 30 to 60% of the structural genes are polymorphic in natural populations of many vertebrate and invertebrate species. Some authors have argued that a substantial proportion of these polymorphisms cannot be maintained by natural selection because this would result in an unbearable genetic load. If many polymorphisms are maintained by heterotic natural selection, individuals with much greater than average proportion of homozygous loci should have very low fitness. We have measured in Drosophila melanogaster the fitness of flies homozygous for a complete chromosome relative to normal wild flies. A total of 37 chromosomes from a natural population have been tested using 92 experimental populations. The mean fitness of homozygous flies is 0.12 for second chromosomes, and 0.13 for third chromosomes. These estimates are compatible with the hypothesis that many (more than one thousand) loci are maintained by heterotic selection in natural populations of D. melanogaster.

Calculating population reductions of invertebrate species for IUCN Red List assessments

2021 ◽  
Author(s):  
H. Reşit Akçakaya ◽  
Axel Hochkirch ◽  
Jason T. Bried ◽  
Roy H. A. van Grunsven ◽  
John P. Simaika ◽  
...  
Keyword(s):  
Iucn Red List ◽  
Red List ◽  
Invertebrate Species

Using local autocorrelation analysis to identify conservation areas: an example considering threatened invertebrate species in Spain

2012 ◽  
Vol 21 (8) ◽  
pp. 2127-2137 ◽  
Author(s):  
Olga Lucía Hernández-Manrique ◽  
David Sánchez-Fernández ◽  
José R. Verdú ◽  
Catherine Numa ◽  
Eduardo Galante ◽  
...  
Keyword(s):  
Autocorrelation Analysis ◽  
Conservation Areas ◽  
Invertebrate Species ◽  
Threatened Invertebrate
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