Folia Zoologica最新文献

How strong are eggs of the common cuckoo Cuculus canorus? 普通杜鹃的蛋有多结实?

Folia Zoologica Pub Date : 2020-12-21 DOI: 10.25225/jvb.20109

J. Picman, M. Honza

{"title":"How strong are eggs of the common cuckoo Cuculus canorus?","authors":"J. Picman, M. Honza","doi":"10.25225/jvb.20109","DOIUrl":"https://doi.org/10.25225/jvb.20109","url":null,"abstract":"Abstract. The common cuckoo Cuculus canorus is an obligate brood parasite that lays its eggs in the nests of small passerines. It has long been hypothesized that cuckoo eggs should be structurally stronger than host eggs or those of non-parasitic cuckoos to reduce chances of breakage during laying, to prevent accidental damage during incubation and/or to hinder their rejection through puncture ejection by the host. Therefore, we analysed selected characteristics of a sample of freshly laid eggs of the common cuckoo with two of its major hosts, the reed warbler Acrocephalus scirpaceus and great reed warbler Acrocephalus arundinaceus, and a sample of species with known puncture resistant eggs. We found that in puncture resistance tests cuckoo eggs tolerated on average 231 g. The cuckoo eggs were 3.3 and 2.5 times stronger than those of the reed warbler and great reed warbler, respectively. Greater shell thickness can explain only 17% of the total extra strength of the cuckoo eggs (125.97 g). When we controlled for the confounding effects of egg size (using a sample of eggs of normal strength from bird species of varying size), the common cuckoo eggs were 2.2 times stronger than expected for their size. Our results are consistent with the hypothesis that cuckoo eggs are structurally stronger and this trait probably represents an adaptation for a brood parasitic life style.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"153 1","pages":"20109.1 - 7"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78199404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Browning plasticity of white adipose tissue in tree shrew during cold acclimation and rewarming 树鼩在冷驯化和复温过程中白色脂肪组织的褐变可塑性

Folia Zoologica Pub Date : 2020-12-21 DOI: 10.25225/jvb.20097

Dongmin Hou, Ting Jia, Jie-Qiong Tao, Zheng-kun Wang, Bo-Ren Guan, Wan-long Zhu

{"title":"Browning plasticity of white adipose tissue in tree shrew during cold acclimation and rewarming","authors":"Dongmin Hou, Ting Jia, Jie-Qiong Tao, Zheng-kun Wang, Bo-Ren Guan, Wan-long Zhu","doi":"10.25225/jvb.20097","DOIUrl":"https://doi.org/10.25225/jvb.20097","url":null,"abstract":"Abstract. This study investigated the browning plasticity of white adipose tissue (WAT) in Tupaia belangeri during cold acclimation and rewarming in order to demonstrate the adaptation mechanism of tree shrews to environmental change. The experimental group was transferred to a cold temperature, 5 ± 1 °C, acclimated for 28 d, and then returned to 25 ± 1 °C for 28 d, while the control group was maintained at the acclimation temperature, 25 ± 1 °C, for 56 d. Body mass, food intake, resting metabolic rate (RMR), WAT mass, morphology and related gene expression in male T. belangeri were measured. The results showed that body mass, food intake and RMR increased significantly under cold acclimation. There was also a significant increase in WAT mass and expression of peroxisome proliferation receptor α (PPARα), peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), cyclooxygenaseII (COXII), bone morphogenetic protein 7 (BMP7) and the PR domain containing 16 (PRDM16), all of which decreased to control levels after rewarming. Further, WAT cells showed more multilocule adipocytes during cold acclimation, which returned to control levels after rewarming. These results suggest that browning may appear in the WAT of T. belangeri during cold acclimation. The return to control levels of WAT cell characteristics and expression of the genes involved in WAT browning after rewarming demonstrates strong browning plasticity.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"32 1","pages":"20097.1 - 7"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76428863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Nest-site selection of an avian urban exploiter, the Eurasian magpie Pica pica, across the urban-rural gradient 鸟类城市掠夺者欧亚喜鹊跨城乡梯度的巢址选择

Folia Zoologica Pub Date : 2020-12-10 DOI: 10.25225/jvb.20086

M. Šálek, S. Grill, J. Riegert

{"title":"Nest-site selection of an avian urban exploiter, the Eurasian magpie Pica pica, across the urban-rural gradient","authors":"M. Šálek, S. Grill, J. Riegert","doi":"10.25225/jvb.20086","DOIUrl":"https://doi.org/10.25225/jvb.20086","url":null,"abstract":"Abstract. Although rapid growth in the extent of urbanized habitats across the globe represents a major threat to biodiversity, there is growing evidence that urban ecosystems can represent suitable habitats for many taxa, including birds. Exploring aspects of bird ecology across the urban-rural gradient, including determinants of habitat associations, are crucial to understanding responses to urbanisation. Here, we examined factors affecting nest-site selection of Eurasian magpies across an urban-rural gradient, contrasting urban and non-urban habitats. The presence and density of Eurasian magpie nests was positively associated with the proportion of green urban areas, and negatively with forests, arable land and buildings, despite habitat associations differing across the urban-rural gradient. We also found a negative relationship between nest height and distance from city edge. The highest nests were found in city centre residential areas, whereas the lowest nests were in the new residential areas. We conclude that Eurasian magpies can successfully exploit urban environments, partially due to adaptation of their nesting behaviour. In particular, they construct their nests higher in urban areas to avoid the negative impacts of human disturbance and predation.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"42 1","pages":"20086.1 - 11"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77169264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Survival of water rail Rallus aquaticus (Aves, Rallidae) embryos exposed to experimental flooding 实验水淹条件下水陆水陆花胚胎的存活研究

Folia Zoologica Pub Date : 2020-12-10 DOI: 10.25225/jvb.20069

A. N. Stermin, A. David

引用次数: 1

The blunt pole is not a source of more salient recognition cues than the sharp pole for the rejection of model eggs by American robins (Turdus migratorius) 钝极并不比锐利极更能显示美洲知更鸟拒绝模型蛋的特征(美洲知更鸟)。

Folia Zoologica Pub Date : 2020-12-10 DOI: 10.25225/jvb.20111

M. Hauber, Jeffrey P Hoover, Oliver R. Rhodes, Rebecca L Ducay, D. Hanley

{"title":"The blunt pole is not a source of more salient recognition cues than the sharp pole for the rejection of model eggs by American robins (Turdus migratorius)","authors":"M. Hauber, Jeffrey P Hoover, Oliver R. Rhodes, Rebecca L Ducay, D. Hanley","doi":"10.25225/jvb.20111","DOIUrl":"https://doi.org/10.25225/jvb.20111","url":null,"abstract":"Abstract. Hosts of obligate avian brood parasites can reduce the costs of raising parasitic offspring by rejecting foreign eggs from their nests. Rejecter hosts use various visual and tactile cues to discriminate between own and foreign eggs. The blunt pole hypothesis specifically states that avian-perceivable visual information at and around the broader pole of the eggshell contains more salient recognition cues than does the sharp pole of the same egg. The directional prediction is, therefore, that eggs painted non-mimetically on their blunt pole should more likely be rejected relative to those similarly painted on their sharp pole. This hypothesis had been experimentally tested and its predictions supported solely in mimetic avian host-parasite systems, with hosts producing denser and more variable eggshell maculation patterns at the blunt pole, and in one species with immaculate eggs but still with distinctly discernible blunt-pole specific colouration. Here we aimed to expand upon these previous works and assessed whether the blunt pole of model eggs contains more salient egg rejection cues, relative to the sharp pole, for the American robin (Turdus migratorius), a robust rejecter of non-mimetic brown-headed cowbird (Molothrus ater) eggs. In this system host eggs are uniformly immaculate whereas the brood parasitic shell is maculated. We painted model cowbird-sized eggs on either the blunt or the sharp half to mimic the immaculate robin egg colours and the other half to resemble non-mimetic egg colours and patterns. There was no statistical support for the predicted outcomes of the blunt pole hypothesis in our trials as rejection rates were similar regardless of whether eggs were painted with non-mimetic colours on the blunt or sharp poles. Future work should test the role of asymmetrical signalling content for anti-parasitic rejection of eggs in additional host species, especially those with both immaculate own and mimetic parasitic eggs.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"26 1","pages":"20111.1 - 7"},"PeriodicalIF":0.0,"publicationDate":"2020-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74283204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Two new species of Crocidura (Mammalia: Soricidae) from Ethiopia and updates on the Ethiopian shrew fauna 文章题目埃塞俄比亚鼩鼱属二新种(哺乳纲:鼩科)及埃塞俄比亚鼩鼱区系研究进展

Folia Zoologica Pub Date : 2020-11-13 DOI: 10.25225/jvb.20064

A. Konečný, R. Hutterer, Y. Meheretu, J. Bryja

{"title":"Two new species of Crocidura (Mammalia: Soricidae) from Ethiopia and updates on the Ethiopian shrew fauna","authors":"A. Konečný, R. Hutterer, Y. Meheretu, J. Bryja","doi":"10.25225/jvb.20064","DOIUrl":"https://doi.org/10.25225/jvb.20064","url":null,"abstract":"Abstract. We describe two new species of white-toothed shrews from south-western and central Ethiopia, based on recent collections and an application of morphological and genetic methods, Crocidura similiturba sp. nov. and Crocidura makeda sp. nov. Comparisons are provided with other Crocidura species known to occur in the country. Both new species are currently known only from the Ethiopian Highlands. Furthermore, we provide new geographical records and discuss biogeographical patterns in the country. New molecular data, even if based primarily on mitochondrial cytochrome b, suggests substantial divergence within afrotropical Suncus megalura, suggesting that the East African lineage might be considered separated at the species level – Suncus sorella (Thomas, 1897), stat. nov. Molecular data support a monophyly of the clade, grouping most Crocidura species endemic to Ethiopia (the East African subclade of the Old World clade), but also indicates additional colonisations of Ethiopian Plateau from East and Central Africa in the past. The remarkable number of endemics shows that Ethiopia is an important centre for the Crocidura radiation, as is the case for other groups of non-flying terrestrial vertebrates.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"18 1","pages":"20064.1 - 16"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87250807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Effects of prescribed burning on rodent community ecology in Serengeti National Park 规定焚烧对塞伦盖蒂国家公园啮齿动物群落生态的影响

Folia Zoologica Pub Date : 2020-11-13 DOI: 10.25225/jvb.20001

Abeid M. Manyonyi, S. Mariki, Laudslaus L. Mnyone, S. Belmain, L. Mulungu

{"title":"Effects of prescribed burning on rodent community ecology in Serengeti National Park","authors":"Abeid M. Manyonyi, S. Mariki, Laudslaus L. Mnyone, S. Belmain, L. Mulungu","doi":"10.25225/jvb.20001","DOIUrl":"https://doi.org/10.25225/jvb.20001","url":null,"abstract":"Abstract. A study on the effects of prescribed burning on rodent community ecology was conducted in Serengeti National Park, Tanzania. The study aimed at generating ecological knowledge about the changes in rodent communities when areas of the park are intentionally burned to regulate grasslands or reduce undergrowth that can lead to uncontrolled forest fires. A completely randomized design (CRD) factorial layout with two treatments (burned and unburned) and two replications was applied. A total of 148 animals comprising six species of rodent and one insectivore were captured over 2,940 trap nights. Among the trapped individuals, 41.9% were adults, 16.1% juveniles and 41.9% sub-adults. Males and females were at parity between treatments. Species abundance was estimated using the minimum number alive (MNA) method for different rodent species and was found to vary with treatment where Mastomys natalensis declined in burned plots whilst Arvicanthis niloticus increased. However, species diversity did not differ across treatments (F1, 10 = 0.15, p = 0.70). Differences in the reproductive condition of female M. natalensis (z = 4.408, df = 15, p < 0.001) and A. niloticus (z = 2.381, df = 15, p = 0.017) were observed between treatments showing that higher numbers of reproductively active females were observed in burned plots in March, whilst in unburned plots more were observed from November to February. Conservation strategies involving periodic habitat burning should, therefore, consider small mammal reproductive periods to ensure that species potentially at risk are not adversely affected and able to rapidly recover from the effects of burning in temporarily lowering food resources and longer term impacts of increased predation caused by reduced cover.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"114 1","pages":"20001.1 - 13"},"PeriodicalIF":0.0,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79016854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Handbook of the Mammals of the World 世界哺乳动物手册

Folia Zoologica Pub Date : 2020-11-13 DOI: 10.25225/jvb.e2003

J. Zukal

引用次数: 23

Effects of nasal parasite species in the small-spotted catshark Scyliorhinus canicula (Scyliorhinidae; Carcharhiniformes) 小斑点猫鲨(scylliorhinus canicula)鼻腔寄生虫种类的影响Carcharhiniformes)

Folia Zoologica Pub Date : 2020-11-02 DOI: 10.25225/jvb.20052

S. Aicardi, A. Amaroli, L. Gallus, S. Ferrando

{"title":"Effects of nasal parasite species in the small-spotted catshark Scyliorhinus canicula (Scyliorhinidae; Carcharhiniformes)","authors":"S. Aicardi, A. Amaroli, L. Gallus, S. Ferrando","doi":"10.25225/jvb.20052","DOIUrl":"https://doi.org/10.25225/jvb.20052","url":null,"abstract":"Abstract. The presence of the parasitic copepod Neoalbionella globosa in the olfactory chamber of a specimen of the catshark Scyliorhinus canicula has been already reported in the literature, but this is the first record from the north-western Mediterranean Sea. Besides confirming this host-parasite association in the Ligurian Sea, the present study aims to describe some effects of the copepod's presence on the olfactory system of S. canicula, thus inferring potential effects of nasal parasites on olfaction. The copepod was accidentally found during a sampling campaign. The copepod, a mature female with well-developed egg sacs, parasitized the right olfactory rosette; the rosette presented visible swelling in some of the olfactory lamellae while, histologically, restricted edema was detectable close to the zone of attachment. The ipsilateral olfactory bulb, which receives the primary olfactory afferences, had a smaller number of cells and smaller neuron density compared to the contralateral bulb and to the average values for non-parasitized specimens of the same size. The results suggest that, although the olfactory rosette does not seem severely damaged, the presence of the parasite could deeply affect the highly efficient water flow within the nasal chamber, potentially causing partial olfactory impairment.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"32 3 1","pages":"20052.1 - 9"},"PeriodicalIF":0.0,"publicationDate":"2020-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75936248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Freshwater gobies (Gobiidae) of Bosnia and Herzegovina: a review of the current status and distribution 波斯尼亚和黑塞哥维那淡水虾虎鱼(虾虎鱼科)的现状和分布

Folia Zoologica Pub Date : 2020-11-02 DOI: 10.25225/jvb.20046

P. Tutman, D. Zanella, Sven Horvatić, A. Hamzić, A. Adrović, J. Dulčić, B. Glamuzina

{"title":"Freshwater gobies (Gobiidae) of Bosnia and Herzegovina: a review of the current status and distribution","authors":"P. Tutman, D. Zanella, Sven Horvatić, A. Hamzić, A. Adrović, J. Dulčić, B. Glamuzina","doi":"10.25225/jvb.20046","DOIUrl":"https://doi.org/10.25225/jvb.20046","url":null,"abstract":"Abstract. This review updates the information on the actual status and distribution of freshwater gobies in Bosnia and Herzegovina. The available literature has been critically reviewed to provide more complete and up-to-date information. Consequently four species are proposed for removal from the national checklist, given the lack of any data to support their presence: Knipowitschia panizzae, Pomatoschistus microps, Proterorhinus marmoratus and Zosterisessor ophiocephalus. Therefore, the freshwater gobiid fauna is confirmed to include seven species from six genera. The Adriatic Sea basin (Neretva River catchment) is inhabited by three endemic species: Knipowitschia radovici, Orsinigobius croaticus and Ninnigobius canestrinii, while the Black Sea basin (Danube River catchment) is inhabited by the invasive species: Babka gymnotrachelus, Neogobius fluviatilis, Neogobius melanostomus and Ponticola kessleri. However, due to the possibility of misidentify the finding of B. gymnotrachelus is questionable and needs confirmation. Distribution of both endemic Knipowitschia and Orsinogobius species is restricted to small areas in the lower Neretva River catchment on both sides of the Croatia-Bosnia and Herzegovina border. The vulnerability of these species is discussed, and the IUCN conservation and units meriting conservation attention were identified. The invasive character of other species is highlighted. This review indicates that the knowledge on the Bosnia-Herzegovinian freshwater gobiid fauna is still far from complete, hence this up-to-date checklist can serve as a basis for further ecological and zoogeographical studies. For better species inventory, finer scale distribution surveys are needed, followed by detailed morphological, molecular phylogenetic and ecological studies.","PeriodicalId":50436,"journal":{"name":"Folia Zoologica","volume":"44 1","pages":"20046.1 - 15"},"PeriodicalIF":0.0,"publicationDate":"2020-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91375910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3