Malacologia最新文献_第10页

Variation in the Sex Ratio of Apple Snails (Pomacea spp.) in Their Native Range 苹果螺(Pomacea spp.)原产地性别比例的变异

IF 1.3 4区生物学

Malacologia Pub Date : 2016-12-01 DOI: 10.4002/040.059.0205

Y. Yusa, J. Kitaura, N. J. Cazzaniga

引用次数: 4

Cold Snails in Hot Springs: Observations from Patagonia and the Tibetan Plateau 温泉中的冷蜗牛:来自巴塔哥尼亚和青藏高原的观测

IF 1.3 4区生物学

Malacologia Pub Date : 2016-12-01 DOI: 10.4002/040.059.0209

Parm Viktor von Oheimb, Lukas Landler, Katharina C. M. von Oheimb

{"title":"Cold Snails in Hot Springs: Observations from Patagonia and the Tibetan Plateau","authors":"Parm Viktor von Oheimb, Lukas Landler, Katharina C. M. von Oheimb","doi":"10.4002/040.059.0209","DOIUrl":"https://doi.org/10.4002/040.059.0209","url":null,"abstract":"ABSTRACT Patagonia and the Tibetan Plateau both harbor various freshwaters with relatively low temperatures. Pulmonate freshwater gastropods are widely distributed in these water bodies. Both regions, however, also possess a number of geothermal hot springs. Such springs might have served as refugia for freshwater taxa during the Pleistocene. In the present study, two hot spring systems, one in Patagonia and one at the Tibetan Plateau, were examined. Individuals of Chilina patagonica (in Patagonia) as well as Radix cf. auricularia and Gyraulus sp. (at the Tibetan Plateau) were found living in the warm water. These taxa typically live at much lower water temperatures. At the Patagonian hot spring system, gastropods occurred continuously from warm to cold water. Analyses of mitochondrial DNA sequence data revealed very close relationships of Tibetan Plateau hot spring gastropods to cold water populations. Acclimatization and not adaptation is thus probably the main thermal adjustment process involved. Given these findings, it is plausible that hot springs have served as glacial refugia for these freshwater gastropods.","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"59 1","pages":"313 - 320"},"PeriodicalIF":1.3,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4002/040.059.0209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70086448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Letter from the Editor 编辑来信

IF 1.3 4区生物学

Malacologia Pub Date : 2016-01-01 DOI: 10.4002/040.059.0214

G. M. Davis

引用次数: 0

Comparative morphology of the radulae and alimentary tracts in the Aplacophora 食蚜目食道和食道的比较形态学

IF 1.3 4区生物学

Malacologia Pub Date : 1981-01-01 DOI: 10.5962/BHL.PART.11943

A. Scheltema

引用次数: 36

The giant white calm from the Galapagos Rift, Calyptogena magnifica species novum 来自加拉帕戈斯裂谷的巨大的白色平静，华丽的Calyptogena物种novum

IF 1.3 4区生物学

Malacologia Pub Date : 1980-01-01 DOI: 10.5962/BHL.PART.11941

K. Boss, R. D. Turner

引用次数: 139

Peripheral and central photoreception in Aplysia fasciata. 筋膜蕨周围和中央的光接受。

IF 1.3 4区生物学

Malacologia Pub Date : 1979-01-01

C J Stoll

引用次数: 0

Environmental osmolarity and neurosecretory neurones in Lymnaea stagnalis (L.). 海雀的环境渗透压与神经分泌神经元。

IF 1.3 4区生物学

Malacologia Pub Date : 1979-01-01

S R Soffe, C T Slade, P R Benjamin

{"title":"Environmental osmolarity and neurosecretory neurones in Lymnaea stagnalis (L.).","authors":"S R Soffe, C T Slade, P R Benjamin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Cell body volume and Alcian blue-Alcian Yellow staining properties of neurosecretory neurones in the brain of Lymnaea stagnalis were compared for snails kept in de-ionised water and standard tapwater. In the same experiment, the ionic content of the blood, blood volume and body weight and environmental ionic composition were measured. Five days of immersion in de-ionised water resulted in significant decreases in body weight, blood volume and blood, Na+ and Cl- concentrations but no change in blood Ca2+, K+,and HCO3- concentrations, compared with controls. No consistently significant differences across the 5 day period were found in cell body volumes for Dark Green Cells, Yellow Cells or Light Green Cells (used as a control) when these volumes were compared for large numbers of cells from snails kept in de-ionised water and standard tapwater. However, the number of Yellow Cells which could be counted in snails kept in de-ionised water was lower than the number from standard tapwater by day 2 of the experiment and lower for Yellow-green Cells by day 5. We interpret this lower number to be the result of depletion of Alcian blue-Alcian Yellow stained neurosecretory material in these cells which made them impossible to distinguish. This was confirmed by examination of visceral Yellow Cells which could be identified on the basis of known location close to the visceral-right parietal connective.</p>","PeriodicalId":49895,"journal":{"name":"Malacologia","volume":"18 1-2","pages":"583-6"},"PeriodicalIF":1.3,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11696871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influx of tryptamine into snail (Helix pomatia) ganglia: comparison with 5-hydroxytryptamine. 色胺流入蜗牛神经节:与5-羟色胺的比较。

IF 1.3 4区生物学

Malacologia Pub Date : 1979-01-01

H U Schröder, V Neuhoff, E Priggemeier, N N Osborne

引用次数: 0

The fine structural organization of sensory nerve endings in the lip of Helix pomatia L. 双螺旋唇部感觉神经末梢的精细结构组织。

IF 1.3 4区生物学

Malacologia Pub Date : 1979-01-01

I Benedeczky

引用次数: 0

The fine structure of the oocyte and follicle cells of Lymnaea stagnalis, with special reference to the nutrition of the oocyte. 卵母细胞和卵泡细胞的精细结构，特别与卵母细胞的营养有关。