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1
Erratum: Journal of Comparative Physiology A (1999) 184: 481–488
Dergi Makalesi

Dergi Makalesi Open Access
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
D.J. Schulz , G.E. Robinson
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2014
Erratum: Journal of Comparative Physiology A (1999) 184: 481–488
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DOI: 10.1007/s003590000122
ISSN: 1432-1351
Cilt: 186
Sayı: 7
Sayfa: 781-781
Sınıflandırma:
Dram %21
2
Mechanisms of behavioral switching
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Zen Faulkes
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2004
In this issue of Journal of Comparative Physiology A, several papers discuss how nervous systems achieve this ordered switching between behaviors, from
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No animal performs only one behavior, so nervous systems must have ways to switch between different behaviors. In this issue of Journal of Comparative Physiology A, several papers discuss how nervous systems achieve this ordered switching between behaviors, from short-term motor control problems, to medium-term decision making based on past experience, to long-term modulation and selection of overall behavioral strategies, such as dominance versus subordinance.
DOI: 10.1007/s00359-004-0560-1
Anahtar Kelimeler: Decision making, Motor control, Neuromodulation, Neuroethology, Switching
ISSN: 1432-1351
Cilt: 191
Sayı: 3
Sayfa: 197-199
Sınıflandırma:
3
The transfer of information in the dance language of honeybees: progress and problems
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Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
A. Michelsen
Konu:
Animal Physiology, Neurosciences, Zoology
honeybees will always be associated with the name of Karl von Frisch, who was one of the two founders of Zeitschrift für Vergleichende Physiologie, now the Journal of Comparative Physiology. Comparative Physiology
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The dance language of honeybees will always be associated with the name of Karl von Frisch, who was one of the two founders of Zeitschrift für Vergleichende Physiologie, now the Journal of Comparative Physiology. The discovery of the dance language has already led to a great number of investigations of physiological mechanisms, and more studies can be expected in the future. It therefore seems most appropriate to let this King Solomon Lecture deal with the progress and problems in our efforts to understand the transfer of information in the dance language of honeybees.
DOI: 10.1007/BF00192972
Anahtar Kelimeler: Physiological Mechanism, Comparative Physiology, Dance Language
ISSN: 1432-1351
Cilt: 173
Sayı: 2
Sayfa: 135-141
Sınıflandırma:
Tarih %95
Güvenlik %43
4
Stingless bees (Meliponini): senses and behavior
Başyazılar

Başyazılar Open Access
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Michael Hrncir , Stefan Jarau , Friedrich G. Barth
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2016
Due to the diversity of evolutionary responses to specific ecological challenges, the Meliponini are well suited for comparative studies of the various The present Special Issue of the Journal of Comparative Physiology A provides a sample of the exciting diversity of sensorial and behavioral adaptations Sensory physiology
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Stingless bees (Hymenoptera, Apidae, Meliponini) are by far the largest group of eusocial bees on Earth. Due to the diversity of evolutionary responses to specific ecological challenges, the Meliponini are well suited for comparative studies of the various adaptations to the environment found in highly eusocial bees. Of particular interest are the physiological mechanisms underlying the sophisticated cooperative and collective actions of entire colonies, which form the basis of the ecological success of the different bee species under the particular conditions prevailing in their respective environment. The present Special Issue of the Journal of Comparative Physiology A provides a sample of the exciting diversity of sensorial and behavioral adaptations in stingless bees, particularly concerning (1) the sensory bases for foraging, (2) chemical communication, and (3) the behavioral ecology of foraging.
DOI: 10.1007/s00359-016-1117-9
Anahtar Kelimeler: Meliponini, Sensory physiology, Communication, Foraging, Adaptations
ISSN: 1432-1351
Cilt: 202
Sayı: 9
Sayfa: 597-601
Sınıflandırma:
5
Olfactory navigation versus olfactory activation: a controversy revisited
Başyazılar

Başyazılar Open Access
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Charles Walcott , Wolfgang Wiltschko , Roswitha Wiltschko , Günther K. H. Zupanc
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2018
However, this hypothesis is challenged by an investigation authored by Anna Gagliardo and colleagues and published in the current issue of the Journal of Comparative Physiology A.
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In the early 1970s, Floriano Papi and colleagues proposed the olfactory-navigation hypothesis, which explains the homing ability of pigeons by the existence of an odor-based map acquired through learning. This notion, although supported by some observations, has also generated considerable controversy since its inception. As an alternative, Paulo Jorge and colleagues formulated in 2009 the olfactory-activation hypothesis, which states that atmospheric odorants do not provide navigational information but, instead, activate a non-olfactory path integration system. However, this hypothesis is challenged by an investigation authored by Anna Gagliardo and colleagues and published in the current issue of the Journal of Comparative Physiology A. In this editorial, the significance of the findings of this study is assessed in the broader context of the role of olfaction in avian navigation and homing, and experiments are suggested that might help to finally resolve the olfactory-navigation versus olfactory-activation controversy.
DOI: 10.1007/s00359-018-1273-1
Anahtar Kelimeler: Pigeon, Homing, Atmospheric odorants, Olfactory-navigation hypothesis, Olfactory-activation hypothesis
ISSN: 1432-1351
Cilt: 204
Sayı: 8
Sayfa: 703-706
Sınıflandırma:
6
A framework for integrating the songbird brain
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
E. Jarvis , V. Smith , K. Wada , M. Rivas , M. McElroy , T. Smulders , P. Carninci , Y. Hayashizaki , F. Dietrich , X. Wu , P. McConnell , J. Yu , P. Wang , A. Hartemink , S. Lin
Konu:
Animal Physiology, Neurosciences, Zoology
This integrative brain project is fitting for the interdisciplinary approaches taken in the current songbird issue of the Journal of Comparative Physiology
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Biological systems by default involve complex components with complex relationships. To decipher how biological systems work, we assume that one needs to integrate information over multiple levels of complexity. The songbird vocal communication system is ideal for such integration due to many years of ethological investigation and a discreet dedicated brain network. Here we announce the beginnings of a songbird brain integrative project that involves high-throughput, molecular, anatomical, electrophysiological and behavioral levels of analysis. We first formed a rationale for inclusion of specific biological levels of analysis, then developed high-throughput molecular technologies on songbird brains, developed technologies for combined analysis of electrophysiological activity and gene regulation in awake behaving animals, and developed bioinformatic tools that predict causal interactions within and between biological levels of organization. This integrative brain project is fitting for the interdisciplinary approaches taken in the current songbird issue of the Journal of Comparative Physiology A and is expected to be conducive to deciphering how brains generate and perceive complex behaviors.
DOI: 10.1007/s00359-002-0358-y
Anahtar Kelimeler: Bayesian network cDNA microarray improvement Multielectrode array Neural network Zebra finch
ISSN: 1432-1351
Cilt: 188
Sayı: 11
Sayfa: 961-980
Sınıflandırma:
7
Collaboration in the competitive world of science: lessons to be learned from William T. Keeton
Başyazılar

Başyazılar Open Access
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Günther K. H. Zupanc
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2015
willingness to openly share ideas and collaborate with other investigators is the article by Hagstrum and Manley (J Comp Physiol A, 2015) in this issue of the Journal of Comparative Physiology A.
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The tremendous increase in the number of authors and institutional affiliations on papers published in the natural sciences over the last few decades is commonly interpreted as an indicator of an increase in the collaborative spirit. However, a closer analysis suggests that this development reflects an increase in cooperation (defined as a strategy to divide labor among participants), rather than a rise in collaboration (defined as a mutual engagement of participants in a coordinated effort to jointly solve a problem). An exception to this development was William T. Keeton (1933–1980), who, as a faculty member at Cornell University, pioneered research into pigeon homing. A direct result of his willingness to openly share ideas and collaborate with other investigators is the article by Hagstrum and Manley (J Comp Physiol A, 2015) in this issue of the Journal of Comparative Physiology A. Their study is based on data from experiments Keeton and his collaborators conducted some 40 years ago. Despite the age of these data, their analysis and the interpretation of the results are likely to stimulate fruitful discussion in the field of avian orientation.
DOI: 10.1007/s00359-015-1013-8
Anahtar Kelimeler: Collaboration, Cooperation, Pigeon homing, Olfactory hypothesis, William T. Keeton
ISSN: 1432-1351
Cilt: 201
Sayı: 10
Sayfa: 957-960
Sınıflandırma:
Eğitim %20
8
Autrum — A chapter in comparative physiology
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Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Dietrich Schneider
Konu:
Animal Physiology, Neurosciences, Zoology
Autrum — A chapter in comparative physiology Comparative Physiology
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Kaydet
DOI: 10.1007/BF00617534
Anahtar Kelimeler: Comparative Physiology
ISSN: 1432-1351
Cilt: 120
Sayı: 1
Sayfa: 1-10
Sınıflandırma:
9
Comparative physiology of mechanoreception: Origin and development of the field of research
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Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
J. Schwartzkopff
Konu:
Animal Physiology, Neurosciences, Zoology
Comparative physiology of mechanoreception: Origin and development of the field of research Comparative Physiology
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Kaydet
DOI: 10.1007/BF00617535
Anahtar Kelimeler: Comparative Physiology
ISSN: 1432-1351
Cilt: 120
Sayı: 1
Sayfa: 11-31
Sınıflandırma:
10
Analysis of various physiological salines for heart rate, CNS function, and synaptic transmission at neuromuscular junctions in Drosophila melanogaster larvae
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Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Clara de Castro , Josh Titlow , Zana R. Majeed , Robin L. Cooper
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2013
Physiology
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Drosophila serves as a playground for examining the effects of genetic mutations on development, physiological function and behavior. Many physiological measures that address the effects of mutations require semi-intact or cultured preparations. To obtain consistent physiological recordings, cellular function needs to remain viable. Numerous physiological salines have been developed for fly preparations, with emphasis on nervous system viability. The commonly used saline drifts in pH and will cause an alteration in the heart rate. We identify a saline that maintains a stable pH and physiological function in the larval heart, skeletal neuromuscular junction, and ventral nerve cord preparations. Using these common assays, we screened various pH buffers of differing concentrations to identify optimum conditions. Buffers at 25 mM produce a stable heart rate with minimal variation in pH. Excitatory junction potentials evoked directly on larval muscles or through sensory-CNS-motor circuits were unaffected by at buffers at 25 mM. The salines examined did not impede the modulatory effect of serotonin on heart rate or neural activity. Together, our results indicate that the higher buffer concentrations needed to stabilize pH in HL3 hemolymph-like saline do not interfere with the acute function of neurons or cardiac myocytes.
DOI: 10.1007/s00359-013-0864-0
Anahtar Kelimeler: Saline, Physiology, Heart, Synaptic transmission
ISSN: 1432-1351
Cilt: 200
Sayı: 1
Sayfa: 83-92
Sınıflandırma:
Biyotıp %100
Nörokimya %63
11
Peripheral auditory processing in the bobtail lizard Tiliqua rugosa
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Christine Köppl , Geoffrey A. Manley , Brian M. Johnstone
Konu:
Animal Physiology, Neurosciences, Zoology
Several parameters of the peripheral auditory physiology of the bobtail lizard have been examined with respect to the time of the year.
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Several parameters of the peripheral auditory physiology of the bobtail lizard have been examined with respect to the time of the year. These include gross-potential and neural thresholds across the entire hearing range as well as a standard measure of gross-potential size and an estimate of the success in recording primary auditory afferents.
DOI: 10.1007/BF00192413
Anahtar Kelimeler: Lizard, Hearing, Anaesthesia, Seasonality
ISSN: 1432-1351
Cilt: 167
Sayı: 1
Sayfa: 139-144
Sınıflandırma:
12
Prey processing in the Siamese fighting fish ( Betta splendens )
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Nicolai Konow , Belma Krijestorac , Christopher P. J. Sanford , Renauld Boistel , Anthony Herrel
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2013
Nutritional physiology
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We studied prey processing in the Siamese fighting fish (Betta splendens), involving slow, easily observed head-bobbing movements, which were compared with prey processing in other aquatic feeding vertebrates. We hypothesized that head-bobbing is a unique prey-processing behaviour, which alternatively could be structurally and functionally analogous with raking in basal teleosts, or with pharyngognathy in neoteleosts. Modulation of head-bobbing was elicited by prey with different motility and toughness. Head-bobbing involved sustained mouth occlusion and pronounced cranial elevation, similar to raking. However, the hyoid and pectoral girdle were protracted, and not retracted as in both raking and pharyngognathy. High-speed videofluoroscopy of hyoid movements confirmed that head-bobbing differs from other known aquatic prey-processing behaviours. Nevertheless, head-bobbing and other prey-processing behaviours converge on a recurrent functional theme in the trophic ecology of aquatic feeding vertebrates; the use of intraoral and oropharyngeal dentition surfaces to immobilize, reduce and process relatively large, tough or motile prey. Prey processing outside the pharyngeal region has not been described for neoteleosts previously, but morphological evidence suggests that relatives of Betta might use similar processing behaviours. Thus, our results suggest that pharyngognathy did not out-compete ancestral prey-processing mechanisms completely during the evolution of neoteleosts.
DOI: 10.1007/s00359-013-0819-5
Anahtar Kelimeler: Convergence, Kinematics, Oropharyngeal, Videofluoroscopy, Nutritional physiology
ISSN: 1432-1351
Cilt: 199
Sayı: 7
Sayfa: 641-651
Sınıflandırma:
13
Photoreception in pineal organs of larval and adult lampreys, Lampetra japonica
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Satoshi Tamotsu , Yukitomo Morita
Konu:
Animal Physiology, Neurosciences, Zoology
A comparative study of the larval and adult pineal organs, which are sensitive to incident light, was carried out in the river lampreyLampetra japonica
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A comparative study of the larval and adult pineal organs, which are sensitive to incident light, was carried out in the river lampreyLampetra japonica, using intracellular recording from the pineal photoreceptors.
DOI: 10.1007/BF00612489
Anahtar Kelimeler: Optical Density, Body Length, Early Development, Incident Light, Typical Response
ISSN: 1432-1351
Cilt: 159
Sayı: 1
Sayfa: 1-5
Sınıflandırma:
14
Visual interneurons of the crab Chasmagnathus studied by intracellular recordings in vivo
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
M. Berón de Astrada , J. Sztarker , D. Tomsic
Konu:
Animal Physiology, Neurosciences, Zoology
Comparative physiology of visual systems has become an important field of investigation. However, despite the fact that Crustacea represents a major phylogenetic group, research on the physiology of vision of these animals is scant and almost
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Comparative physiology of visual systems has become an important field of investigation. However, despite the fact that Crustacea represents a major phylogenetic group, research on the physiology of vision of these animals is scant and almost limited to the crayfish. We developed a preparation to study in vivo the visual nervous system of a semiterrestrial crab through intracellular recordings. The response to a pulse of light was investigated in 206 interneurons from 38 animals. Seventy-eight of these neurons could be classified by functional criteria as sustaining cells, dimming cells, nonspiking hyperpolarizing cells and nonspiking depolarizing cells. Quantitative description is provided for the first two groups and qualitative description is given for the last two. The remaining neurons presented a broad range of different types of phasic responses to light. Although semiterrestrial crabs are behaviorally more reactive to visual stimuli than the crayfish, the general physiological properties of identified lamina and medullary neurons of Chasmagnathus resemble those of the crayfish. The results described here represent the first attempt to study the visual system of crabs with intracellular recordings and constitute the beginning of a project aimed to investigate the neuronal functions underlying behavioral responses elicited by visual stimuli.
DOI: 10.1007/s003590000174
Anahtar Kelimeler: Visual interneurons Crustacea In vivo intracellular recording
ISSN: 1432-1351
Cilt: 187
Sayı: 1
Sayfa: 37-44
Sınıflandırma:
15
Blood meal as a regulator of triacylglycerol synthesis in the haematophagous stable fly, Stomoxys calcitrans
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
K. Venkatesh , P. E. Morrison
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
Accumulation of triacylglycerol and glycogen reserves following meals of blood and/or sugar-water was investigated in the haematophagous stable fly,Stomoxys calcitrans. In the starved fly, triacylglycerol reserves appear to be utilized predominantly for energy requirements. When the starved flies were fed one meal of 1.0 M sucrose-water, they accumulated considerable amounts of glycogen but there was no increase in the triacylglycerol content. Starved flies fed one meal of blood accumulated large quantities of triacylglycerol but no glycogen; in those flies fed sugar-water and blood, glycogen and triacylglycerol accumulated. This study shows that the stable fly preferentially utilizes blood for triacylglycerol synthesis and sugar for glycogen synthesis. It is suggested that one or more factor(s) in the blood meal influences accumulation of triacylglycerol in this insect, possibly through an hormone from the corpora cardiaca-corpora allata complex.
DOI: 10.1007/BF00689289
Anahtar Kelimeler: Sugar, Human Physiology, Triacylglycerol, Energy Requirement, Blood Meal
ISSN: 1432-1351
Cilt: 147
Sayı: 1
Sayfa: 49-52
Sınıflandırma:
16
Oxygen consumption of locust and cockroach recta in vitro during fluid absorption
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
D. Sell , D. F. Houlihan
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
DOI: 10.1007/BF00689625
Anahtar Kelimeler: Oxygen, Nitrogen, Oxygen Consumption, Human Physiology, Oxygen Diffusion
ISSN: 1432-1351
Cilt: 153
Sayı: 2
Sayfa: 223-233
Sınıflandırma:
Kimya %24
Biyokimya %78
17
Energy assimilation, expenditure and storage by the brown honeyeater, Lichmera indistincta
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Brian G. Collins , Gayle Cary , Garry Packard
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
Yayıncı Web Sitesi Tam Metin
Kaydet
DOI: 10.1007/BF00689215
Anahtar Kelimeler: Sucrose, Total Energy, Assimilation, Human Physiology, Environmental Temperature
ISSN: 1432-1351
Cilt: 137
Sayı: 2
Sayfa: 157-163
Sınıflandırma:
Enerji %25
Enerji %88
18
Low and nonrhythmic heart rate of the mole rat ( Spalax ehrenbergi ): Control by the autonomic nervous system
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
D. Storier , Z. Wollberg , A. Ar
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
Yayıncı Web Sitesi Tam Metin
Kaydet
ECG of mole rats (Spalax ehrenbergi) was recorded by chronically implanted electrodes. The average heart rate of unrestrained, resting animals (mean body mass 191 g±35 S.D.) in normoxia and at room temperature is 152 beats/min±42 S.D. It is nonrhythmic and about one third of the rate expected for an animal of this mass. ECG revealed that each heart beat is normal. From atropine and propranolol administration, it was evident that the low heart rate results from : (a) low intrinsic heart rate (285 b/min±30 S.D.), (b) high parasympathetic tone (51%±12 S.D.) and (c) low sympathetic tone (3.6%±1.6 S.D.). Unilateral vagotomy showed that the degree of left or right vagus dominancy in the mole rat differs in each individual: it may even reach a complete left vagus control, in contrast to other mammals where right vagus dominancy is apparent.
DOI: 10.1007/BF00688986
Anahtar Kelimeler: Heart Rate, Nervous System, Human Physiology, Propranolol, Atropine
ISSN: 1432-1351
Cilt: 142
Sayı: 4
Sayfa: 533-538
Sınıflandırma:
19
The comparative energetics of neotropical marsupials
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Brian K. McNab
Konu:
Animal Physiology, Neurosciences, Zoology
The comparative energetics of neotropical marsupials
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Kaydet
DOI: 10.1007/BF00686747
Anahtar Kelimeler: Basal Rate, High Thermal Conductance, Food Habit, Gestation Period, Temperature Differential
ISSN: 1432-1351
Cilt: 125
Sayı: 2
Sayfa: 115-128
Sınıflandırma:
20
Effects of 17-α-methultestosterone and 17- β -oestradiol on intestinal transport and absorption of l -( 14 C)-leucine in vitro in rainbow trout ( Salmo gairdneri )
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Hamid Habibi , Bernard W. Ince , Allen J. Matty
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
Yayıncı Web Sitesi Tam Metin
Kaydet
The effects of 17-α-methyltesterone (MT) and 17-β-oestradiol (E2) on transport and absorption ofl-(14C)-leucine, were studiedin vitro using everted gut sacs of rainbow trout (Salmo gairdneri), incubated at 14°C for 60 min. Hormone administration was carried out either by intramuscular injection (200 μg/100 g·day) on alternate days for 10 days, or by direct addition (200 μg/ml) to incubation media containing sacs from untreated fish (MT+; E2+). Addition of MT to incubation media significantly increased the serosal leucine increase (SLI) and mucosal absorption after 20 min of incubation (Table 1), but did not influence the overall ability of the intestine to accumulate radioleucine (Fig. 1). By contrast, MT injection elicited significant increases in overall intestinal accumulation of radioleucine (Fig. 2) and SLI, but was without effect on mucosal absorption (Table 2). Both MT+ and MT injection resulted in regional variations of radioleucine accumulation along the intestine, being higher in the midgut of the MT+ group (Fig. 1), and higher in the hindgut of the MT injected group (Fig. 2). Injection of E2 significantly increased midgut accumulation (Fig. 2) and SLI, but was without effect on mucosal absorption (Table 2). Addition of E2 into the incubation media however, was without effect on any of the parameters studied, nor were regional variations of radioleucine accumulation detected in any group receiving E2 treatment. These results suggest that steroid-induced growth promotion in fish may be partly a consequence of enhanced efficiency of intestinal function.
DOI: 10.1007/BF00689925
Anahtar Kelimeler: Human Physiology, Leucine, Rainbow Trout, Regional Variation, Incubation Medium
ISSN: 1432-1351
Cilt: 151
Sayı: 2
Sayfa: 247-252
Sınıflandırma:
Biyotıp %70
21
Oxygen consumption during swimming in galapagos marine iguanas and its ecological correlates
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
David Vleck , Todd T. Gleeson , George A. Bartholomew
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
DOI: 10.1007/BF01101476
Anahtar Kelimeler: Oxygen, Power Output, Linear Function, Oxygen Consumption, Human Physiology
ISSN: 1432-1351
Cilt: 141
Sayı: 4
Sayfa: 531-536
Sınıflandırma:
22
The relation between plasma Na concentration and salt gland Na−K ATPase content in the diamondback terrapin and the yellow-bellied sea snake
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Margaret K. Dunson , William A. Dunson
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
The Na−K ATPase activity of the diamondback terrapin (Malaclemys) lachrymal salt gland increased with a rise in Na concentration of the plasma. Considerable dehydration was necessary to obtain maximal stimulation of gland Na−K ATPase and some terrapins kept in sea water for many months may not have fully active glands. No changes occurred in lachrymal gland weight. The salt glands of salt injected or sea water acclimated terrapins (when plasma Na>200 mM), desert iguanas (Dipsosaurus) and sea snakes (Pelamis) contained comparable activities of Na−K ATPase. Sea snakes kept in fresh water for 48 days showed no decrease in salt gland Na−K ATPase activity or in gland weight, even though the plasma Na concentration diminished markedly.
DOI: 10.1007/BF00694150
Anahtar Kelimeler: Dehydration, Human Physiology, Fresh Water, ATPase Activity, Comparable Activity
ISSN: 1432-1351
Cilt: 101
Sayı: 2
Sayfa: 89-97
Sınıflandırma:
23
Thermoregulation, respiration and sleep in the Tasmanian devil, Sarcophilus harrisii (Marsupialia: Dasyuridae)
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
S. C. Nicol , M. Maskrey
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
Yayıncı Web Sitesi Tam Metin
Kaydet
DOI: 10.1007/BF00690409
Anahtar Kelimeler: Energy Expenditure, Respiration, Ambient Temperature, Human Physiology, Body Temperature
ISSN: 1432-1351
Cilt: 140
Sayı: 3
Sayfa: 241-248
Sınıflandırma:
24
The influence of flow rates and flow distributions on diffusion controlled transport across the isolated guinea pig placenta
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
B. K. van Kreel , J. P. van Dijk
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
The influence of flow rates and flow distributions on diffusion controlled transport across the isolated guinea pig placenta was investigated. It was shown that the transport of antipyrine and tritiated water could be explained by simple diffusion and concluded that the maternal and fetal circulations are directed countercurrently. Antipyrine and tritiated water were also used to calculate which part of the maternal and fetal circulations were directed away from the exchange area. One of the models developed by Meschia (1) was changed to account for existing shunts in the maternal and fetal circulations.
DOI: 10.1007/BF00692535
Anahtar Kelimeler: Human Physiology, Exchange Area, Antipyrine, Flow Distribution, Simple Diffusion
ISSN: 1432-1351
Cilt: 115
Sayı: 2
Sayfa: 255-264
Sınıflandırma:
Çevre %94
25
Impact beyond the impact factor
Başyazılar

Başyazılar Open Access
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Günther K. H. Zupanc
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2013
The journal impact factor is an annually calculated number for each scientific journal, based on the average number of times its articles published in In addition to this clear abuse of the journal impact factor, several conceptual and technical issues limit its usability as a measure of journal reputation An author’s decision regarding the suitability of a scholarly journal for publication should, therefore, be based on the impact that this journal makes Journal impact factor Journal Citation Reports
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Kaydet
The journal impact factor is an annually calculated number for each scientific journal, based on the average number of times its articles published in the two preceding years have been cited. It was originally devised as a tool for librarians and publishers to provide information about the citation performance of a journal as a whole, but over the last few decades it has increasingly been used to assess the quality of specific articles and the research performance of individual investigators, institutions, and countries. In addition to this clear abuse of the journal impact factor, several conceptual and technical issues limit its usability as a measure of journal reputation, especially when journals are compared across different fields. An author’s decision regarding the suitability of a scholarly journal for publication should, therefore, be based on the impact that this journal makes in the field of research, rather than on the journal impact factor.
DOI: 10.1007/s00359-013-0863-1
Anahtar Kelimeler: Journal impact factor, Journal Citation Reports, Eugene Garfield, Research assessment, San Francisco Declaration on Research Assessment
ISSN: 1432-1351
Cilt: 200
Sayı: 2
Sayfa: 113-116
26
The effect of pinealectomy on entrainment of the locomotor activity rhythm in sparrows maintained on various short days
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Robert S. Laitman , Fred W. Turek
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
Pinealectomy of house sparrows on 3L:21D (3 h light per 24 h) resulted in a significant increase in the time between the onset of perch-hopping activity and lights on (ψon) as well as the time between the offset of activity and lights of (ψoff). The daily variance in ψon and ψoff was also increased following the removal of the pineal gland. On longer light cycles (i.e., 5L:19D; 7L:17D), neither ψon or ψoff, nor the variance of ψon or ψoff was different between sham-pinealectomized and pinealectomized sparrows. Upon returning the birds to an ultrashort light cycle, 1L:23D, ψoff, as well as the variance in ψon and ψoff were again found to be significantly larger in the pinealectomized birds when compared to sham-operated controls. These results indicate that the effects of pinealectomy on the entrained rhythm of locomotor activity are most pronounced when birds are exposed to a weak entraining agent, such as an ultrashort light: dark cycle. In view of the observation that pinealectomy can alter the phase relationship between activity onset and offset, it is suggested that the pineal gland may be involved in the coupling of the oscillators that regulate activity onset and offset.
DOI: 10.1007/BF00710001
Anahtar Kelimeler: Human Physiology, Locomotor Activity, Dark Cycle, Pineal Gland, Daily Variance
ISSN: 1432-1351
Cilt: 134
Sayı: 4
Sayfa: 339-343
Sınıflandırma:
27
Differential responses of two types of electroreceptive afferents to signal distortions may permit capacitance measurement in a weakly electric fish, Gnathonemus petersii
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Gerhard von der Emde , Horst Bleckmann
Konu:
Animal Physiology, Neurosciences, Zoology
Sensory physiology
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Kaydet
Gnathonemus petersii discriminates between ohmic and capacitive objects. To investigate the sensory basis of this discrimination we recorded from primary afférents that innervate either A or B mormyromast sensory cells. Modified and natural electric organ discharges were used as stimuli. In both A and B fibres frequencies below the peak-power frequency (3.8 to 4.5 kHz) of the electric organ discharge caused minimal first-spike latencies and a maximum number of spikes. A fibres did not discriminate phase-shifted stimuli, whereas B fibres responded significantly with a decrease in first-spike latency if the phase shift was only — 1°. In both A and B fibres an amplitude increase caused a decrease in spike latency and an increase in spike number; an amplitude decrease had the reverse effect. If stimulated with quasi-natural electric organ discharges distorted by capacitive objects, the responses of A fibres decreased with increasing signal distortion. In contrast, the responses of B fibres increased until amplitude effects began to dominate. Gnathonemus may use the physiological differences between A and B fibres to detect and discriminate between capacitive and purely ohmic objects.
DOI: 10.1007/BF00194116
Anahtar Kelimeler: Weakly electric fish, Electrolocation, Complex impedance, Object discrimination, Sensory physiology
ISSN: 1432-1351
Cilt: 171
Sayı: 5
Sayfa: 683-694
Sınıflandırma:
28
Role of the Rete mirabile ophthalmicum in maintaining the body-to-brain temperature difference in pigeons
Dergi Makalesi

Dergi Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Delbert L. Kilgore , Dona F. Boggs , Geoffrey F. Birchard
Konu:
Animal Physiology, Neurosciences, Zoology
Human Physiology
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Kaydet
DOI: 10.1007/BF00798175
Anahtar Kelimeler: Human Physiology, Body Temperature, Temperature Difference, Normal Pattern, Arterial Flow
ISSN: 1432-1351
Cilt: 129
Sayı: 2
Sayfa: 119-122
Sınıflandırma:
29
Agrochemical-induced stress in stingless bees: peculiarities, underlying basis, and challenges
Derleme Makalesi

Derleme Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
M. A. P. Lima , G. F. Martins , E. E. Oliveira , R. N. C. Guedes
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2016
effects on stingless bees are sparse, usually limited to histopathological studies, and lack a holistic assessment of the effects of these compounds on physiology
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Kaydet
The toxicological stress induced by pesticides, particularly neonicotinoid insecticides, and its consequences in bees has been the focus of much recent attention, particularly for honey bees. However, the emphasis on honey bees and neonicotinoids has led to neglect of the relevance of stingless bees, the prevailing pollinators of natural and agricultural tropical ecosystems, and of other agrochemicals, including other pesticides and even leaf fertilizers. Consequently, studies focusing on agrochemical effects on stingless bees are sparse, usually limited to histopathological studies, and lack a holistic assessment of the effects of these compounds on physiology and behavior. Such effects have consequences for individual and colony fitness and are likely to affect both the stingless bee populations and the associated community, thereby producing a hierarchy of consequences thus far overlooked. Herein, we review the current literature on stingless bee-agrochemical interactions and discuss the underlying mechanisms involved in reported stress symptoms, as well as the potential consequences based on the peculiarities of these pollinators.
DOI: 10.1007/s00359-016-1110-3
Anahtar Kelimeler: Behavioral impairment, Meliponini, Pesticides, Physiological stress, Pollinators
ISSN: 1432-1351
Cilt: 202
Sayı: 9
Sayfa: 733-747
Sınıflandırma:
30
Early ant trajectories: spatial behaviour before behaviourism
Derleme Makalesi

Derleme Makalesi
Kaynak:
Springer Link
Dergi:
Journal of Comparative Physiology A
Yazar(lar):
Rüdiger Wehner
Konu:
Animal Physiology, Neurosciences, Zoology
Yıl:
2016
In the beginning of the twentieth century, when Jacques Loeb’s and John Watson’s mechanistic view of life started to dominate animal physiology and behavioural certainly due to the fact that nearly all these ant researchers were scientific loners, who did their idiosyncratic investigations outside the realm of comparative physiology, neurobiology and the behavioural sciences of the time, and published their results in French, German, and Spanish at rather inaccessible places
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In the beginning of the twentieth century, when Jacques Loeb’s and John Watson’s mechanistic view of life started to dominate animal physiology and behavioural biology, several scientists with different academic backgrounds got engaged in studying the wayfinding behaviour of ants. Largely unaffected by the scientific spirit of the time, they worked independently of each other in different countries: in Algeria, Tunisia, Spain, Switzerland and the United States of America. In the current literature on spatial cognition these early ant researchers—Victor Cornetz, Felix Santschi, Charles Turner and Rudolf Brun—are barely mentioned. Moreover, it is virtually unknown that the great neuroanatomist Santiago Ramón y Cajal had also worked on spatial orientation in ants. This general neglect is certainly due to the fact that nearly all these ant researchers were scientific loners, who did their idiosyncratic investigations outside the realm of comparative physiology, neurobiology and the behavioural sciences of the time, and published their results in French, German, and Spanish at rather inaccessible places. Even though one might argue that much of their work resulted in mainly anecdotal evidence, the conceptual approaches of these early ant researchers preempt much of the present-day discussions on spatial representation in animals.
DOI: 10.1007/s00359-015-1060-1
Anahtar Kelimeler: Rudolf Brun, Victor Cornetz, Santiago Ramón y Cajal, Felix Santschi, Charles Turner
ISSN: 1432-1351
Cilt: 202
Sayı: 4
Sayfa: 247-266
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