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The first record of the genus Phytodietus Gravenhorst, 1829 (Hymenoptera: Ichneumonidae: Tryphoninae) in Papua New Guinea, with description of a new species 1829年在巴布亚新几内亚首次记录绿蜂属(膜翅目:姬蜂科:姬蜂科)并附有一新种描述
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-03-17 DOI: 10.1080/24750263.2023.2182921
A. Kostro-Ambroziak
{"title":"The first record of the genus Phytodietus Gravenhorst, 1829 (Hymenoptera: Ichneumonidae: Tryphoninae) in Papua New Guinea, with description of a new species","authors":"A. Kostro-Ambroziak","doi":"10.1080/24750263.2023.2182921","DOIUrl":"https://doi.org/10.1080/24750263.2023.2182921","url":null,"abstract":"Abstract The genus Phytodietus Gravenhorst, 1829 is recorded from Papua New Guinea for the first time, based on a newly described species, P. (P.) guineus sp. nov. An identification key to the Australasian Phytodietus species is provided. http://zoobank.org/urn:lsid:zoobank.org:pub:D23507BB-F353-4CDE-AB12-2B1DBD4B5F2B","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44875569","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
Do females of Whiskered Tern Chlidonias hybrida renest after offspring desertion? 在后代被遗弃后,短须燕鸥的雌性会再婚吗?
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-03-08 DOI: 10.1080/24750263.2023.2184876
M. Ledwoń, A. Flis, A. Banach, B. Kusal, H. Łożyńska, N. Atamas, S. Broński, J. Betleja
{"title":"Do females of Whiskered Tern Chlidonias hybrida renest after offspring desertion?","authors":"M. Ledwoń, A. Flis, A. Banach, B. Kusal, H. Łożyńska, N. Atamas, S. Broński, J. Betleja","doi":"10.1080/24750263.2023.2184876","DOIUrl":"https://doi.org/10.1080/24750263.2023.2184876","url":null,"abstract":"Abstract In species with biparental care, one parent may relieve him-/herself of the costs of parental care by deserting and leaving the mate to care for the offspring. Offspring desertion by a single parent, usually the female, occurs in many bird species, especially in Charadriiformes. The reasons for desertion are still being debated, and compelling evidence for the benefits and costs to either sex is not yet handed. The benefits of desertion for the deserter may include renesting with a new mate shortly after desertion. Therefore, desertion may enhance individual lifetime reproductive success. In Whiskered Tern Chlidonias hybrida almost all females desert, about half of females desert during chick-rearing period, the other half during the post-fledging period. Based on intensive fieldwork over a 4-year study, we investigated whether Whiskered Tern females remated and renested after desertion. We assumed that favourable conditions, such as an extended breeding season and food abundance resulting in a high breeding success would prompt most females to renest after desertion. In contrast to this expectation, however, only 5% of females that deserted during chick-rearing period (2 out of 41) remated and renested in the study area. About 50 days elapsed between the initiations of the first and second clutch by these two females. Females also participated in courtship behaviour after desertion (without renesting). We thus estimate that 15% (6 out of 41) of females that deserted during chick-rearing period were subsequently involved in some kind of breeding activity. Therefore, renesting does not seem to be a major direct benefit for deserting Whiskered Tern females. Females of this species probably benefit from desertion in other ways, but these have yet to be discovered.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46092768","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: 1
Presence and distribution of pests and diseases of Apis mellifera (Hymenoptera: Apidae) in Mexico: a review 墨西哥蜜蜂(膜翅目:蜜蜂科)病虫害存在与分布综述
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-03-02 DOI: 10.1080/24750263.2023.2182920
G. Peña-Chora, E. Toledo-Hernández, C. Sotelo-Leyva, P. Damián-Blanco, A. G. Villanueva-Flores, P. Álvarez-Fitz, F. Palemón-Alberto, S. Á. Ortega-Acosta
{"title":"Presence and distribution of pests and diseases of Apis mellifera (Hymenoptera: Apidae) in Mexico: a review","authors":"G. Peña-Chora, E. Toledo-Hernández, C. Sotelo-Leyva, P. Damián-Blanco, A. G. Villanueva-Flores, P. Álvarez-Fitz, F. Palemón-Alberto, S. Á. Ortega-Acosta","doi":"10.1080/24750263.2023.2182920","DOIUrl":"https://doi.org/10.1080/24750263.2023.2182920","url":null,"abstract":"Abstract The European honey bee, Apis mellifera L., is the bee species with the largest geographic distribution in the world. It is considered a pollinator generalist of wild plants and agricultural crops, as well as honey bee products as honey, beeswax, and propolis. For this reason, it plays an extremely important role in the world’s ecosystems, economy, and food security. However, Apis mellifera is facing population declines due to biotic and abiotic factors, such as climate change, habitat loss, agrochemical use, and emerging pests and diseases. Pests and diseases are directly associated with a phenomenon known as colony collapse disorder (CCD), which is linked with the loss of millions of bee colonies annually worldwide. One particularly important pest is the varroa mite, which is already widely distributed and is considered the major threat to apiculture. In this review, we compile documentation of the presence and distribution of pests and diseases reported to affect Apis mellifera in Mexico. Surveys demonstrate that the following pests are present: Varroa destructor, Acarapis woodi, Aethina tumida, Galleria mellonella, as well as the diseases caused by Melissococcus plutonius, Paenibacillus larvae, Vairimorpha (Nosema) apis, V. ceranae, Ascosphaera apis and several viruses. It should be noted that the distribution and presence of European bee pathogens throughout the beekeeping states of Mexico is not very well defined, due to the lack of current bee health studies in apiaries or nationwide databases to quickly update information on their distribution and incidence.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42968593","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: 2
Do non-direct heterospecific cues of avian predator activity alter reproductive modes of a passerine bird? 鸟类捕食者活动的非直接异性线索会改变雀形目鸟类的繁殖模式吗?
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-03-01 DOI: 10.1080/24750263.2023.2181988
R. Martyka, P. Skórka
{"title":"Do non-direct heterospecific cues of avian predator activity alter reproductive modes of a passerine bird?","authors":"R. Martyka, P. Skórka","doi":"10.1080/24750263.2023.2181988","DOIUrl":"https://doi.org/10.1080/24750263.2023.2181988","url":null,"abstract":"Abstract Predators affect prey by killing them or inducing changes in their physiology and behaviour through a fear effect associated with predation risk. In birds, perceived predation risk influences reproductive decisions, such as the reduction of parental investment in offspring during both egg production and nestling rearing. Visual and vocal cues of predator presence have been widely used to test the direct effects of predation risk. However, few studies have examined the indirect cues of predator activity such as dead avian prey or their remains. In this study, for the first time, we experimentally studied whether piles of feathers, simulating the remains of avian prey, induce changes in the reproductive decisions of adult birds. Before and during egg laying, great tit, Parus major, pairs were exposed to piles of bright down and cover feathers from domestic goose (treatment), woodchips (procedural control), or were not exposed (control). Our experiment affected maternal investment in individual eggs, but did not influence other reproductive parameters. Females from the treatment group laid larger and more asymmetrical (pointed) eggs than control females. Moreover, females from the procedural control group laid larger eggs than those from the control group, but without differences in egg shape. However, the eggs from the treatment and procedural control groups did not differ. This indicates that great tit females can perceive feathers and woodchips as informative cues, such as potential predation risk or habitat suitability, or as novel items in the environment. Importantly, females respond to such cues by changing their maternal investment in eggs, which may result from an adaptive mechanism aimed at increasing offspring fitness in the face of specific environmental conditions experienced by a female. Our study contributes to the understanding of how female songbirds adjust their maternal reproductive investment in response to publicly available social and environmental cues.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47704377","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
Comparative cytogenetics of Hemorrhois hippocrepis and Malpolon monspessulanus highlights divergent karyotypes in Colubridae and Psammophiidae (Squamata: Serpentes) hippocrepis和Malpolon monspesulanus痔疮的比较细胞遗传学突出了Columbridae和Psammophidae的不同核型(Squamata:蛇)
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-02-27 DOI: 10.1080/24750263.2023.2180547
M. Mezzasalma, E. Brunelli, G. Odierna, F. Guarino
{"title":"Comparative cytogenetics of Hemorrhois hippocrepis and Malpolon monspessulanus highlights divergent karyotypes in Colubridae and Psammophiidae (Squamata: Serpentes)","authors":"M. Mezzasalma, E. Brunelli, G. Odierna, F. Guarino","doi":"10.1080/24750263.2023.2180547","DOIUrl":"https://doi.org/10.1080/24750263.2023.2180547","url":null,"abstract":"Abstract Despite the growing interest in the evolutionary cytogenetics of squamates, chromosomal data are lacking for most taxa. We performed a preliminary molecular taxonomic analysis and a comparative cytogenetic study on Hemorrhois hippocrepis and Malpolon monspessulanus. We used a combination of standard karyotyping, Chromomycin A3/Methyl green staining, C-banding, Ag-NOR staining and NOR-FISH to provide the first karyotype description of H. hippocrepis and a re-description of the karyotype of M. monspessulanus, including chromosome markers, heterochromatin patterns and sex chromosome systems. Our results show that H. hippocrepis has 2 n = 36 chromosomes, with 16 macro- and 20 microchromosomes and NORs on the 6th pair. The 4th pair represents homomorphic (metacentric) ZW sex chromosomes, but the W chromosome is completely heterochromatic. Malpolon monspessulanus has 2 n = 44 chromosomes, with 20 macro- and 24 microchromosomes, NORs on the 6th telocentric pair. The 4th pair represents the sex chromosomes (ZZ/ZW), with a W chromosome smaller than the Z and completely heterochromatic. Comparing our cytogenetic data to those available from the literature, we note the occurrence and distribution of primitive and derived chromosomal characteristics and discuss the chromosome diversification in two snake clades belonging to Colubridae and Psammophiidae, respectively. We highlight that these two families followed different chromosome diversification pathways, characterised by a highly conserved karyotype structure in Colubridae and a higher chromosome variability in Psammophiidae, mostly driven by a progressive reduction of the chromosome number by means of chromosome fusions. We also provide cytotaxonomic insights supporting the distinction between M. monspessulanus and M. insignitus.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47009701","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: 1
Water bugs (Heteroptera: Gerromorpha, Nepomorpha) of the Caucasus ecoregion 高加索生态区的水虫(异翅目:Gerromorpha,Nepomorpha)
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-02-26 DOI: 10.1080/24750263.2023.2174190
G. M. Berchi, D. Copilaș‐Ciocianu, P. Kment, L. Mumladze
{"title":"Water bugs (Heteroptera: Gerromorpha, Nepomorpha) of the Caucasus ecoregion","authors":"G. M. Berchi, D. Copilaș‐Ciocianu, P. Kment, L. Mumladze","doi":"10.1080/24750263.2023.2174190","DOIUrl":"https://doi.org/10.1080/24750263.2023.2174190","url":null,"abstract":"Abstract The Caucasian fauna of water bugs (Heteroptera: Gerromorpha, Nepomorpha) is reviewed based on data originating from literature survey, museum and private collections, and extensive field sampling. The diversity of Caucasus ecoregion is quite significant with 77 species and subspecies framed within 25 genera (17 in Nepomorpha, 8 in Gerromorpha), and 13 families (8 in Nepomorpha, 5 in Gerromorpha). Micronecta anatolica anatolica Lindberg, 1922, Sigara iranica Lindberg, 1964, S. samani tigranes Jansson, 1986, Velia kiritshenkoi Tamanini, 1958, and Gerris asper (Fieber, 1860) are reported for the first time from Georgia, M. anatolica anatolica, Notonecta maculata Fabricius, 1794, Mesovelia thermalis Horváth, 1915, and Gerris lacustris (Linnaeus, 1758) represent new records for Armenia, and Microvelia macani Brown, 1953 is new for Azerbaijan. A chorological and similarity analysis highlighted the connections with and between adjacent countries, with Caucasus ecoregion having the highest similarity of the water bug fauna with Turkey, whereas Iran and Russia (European territory) have the lowest. The largest number of shared species/subspecies was found between the Caucasus and Turkey (64 taxa), while the lowest was between Iran and Russia (40 taxa). Our results indicate that the Caucasus represents a composite of various faunal elements of different origin, ranging from Caucasian endemics to Afrotropico-Indo-Mediterranean and Holarctic.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47871430","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: 1
The use of drones to study the breeding productivity of Whooper Swan Cygnus cygnus 使用无人机研究天鹅座天鹅繁殖生产力
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-02-26 DOI: 10.1080/24750263.2023.2181414
A. Sikora, D. Marchowski
{"title":"The use of drones to study the breeding productivity of Whooper Swan Cygnus cygnus","authors":"A. Sikora, D. Marchowski","doi":"10.1080/24750263.2023.2181414","DOIUrl":"https://doi.org/10.1080/24750263.2023.2181414","url":null,"abstract":"Abstract This research was carried out in north-eastern Poland, where Whooper Swan Cygnus cygnus is a sparse breeder. Whooper Swan is timid and exhibits a tendency to hide in emergent vegetation. A drone was used to improve the effectiveness of research into its breeding success and offspring productivity. The breeding density of Whooper Swan in the study area in 2022 was 10 pairs/100 km2. The number of breeding birds detected at the beginning of the breeding season did not differ according to the method used (drone vs ground). The breeding productivity of the sample of swans studied (N = 36) was 2.19 cygnets per breeding pair using the ground method, but 3.71 per pair with the drone, a significant difference (p-value of the Wilcoxon test = 0.0148). The traditional method showed that 50% of the pairs had bred successfully, whereas with the drone this figure was 79%. The birds either did not react to the drone’s presence or else moved slowly away. The drone study of Whooper Swan breeding productivity was considerably faster (9 min per site vs 1–2 h ground survey), more precise, and less invasive for the birds than a traditional ground survey.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45778645","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: 2
New species and new records of Polynema-group genera (Chalcidoidea: Mymaridae) from India 印度多烯虫群属的新种和新记录(蛙总科:Mymaridae)
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-02-20 DOI: 10.1080/24750263.2023.2166605
P. Anwar, S. B. Zeya, S. U. Usman, F. Khan, M. Mahamood, F. Zahir, S. Alhewairini
{"title":"New species and new records of Polynema-group genera (Chalcidoidea: Mymaridae) from India","authors":"P. Anwar, S. B. Zeya, S. U. Usman, F. Khan, M. Mahamood, F. Zahir, S. Alhewairini","doi":"10.1080/24750263.2023.2166605","DOIUrl":"https://doi.org/10.1080/24750263.2023.2166605","url":null,"abstract":"Abstract Two new species of the Polynema group of genera (Chalcidoidea: Mymaridae), Palaeoneura razii Anwar, Zeya and Usman sp. nov. and Acmopolynema misbahae Anwar, Zeya and Usman sp. nov. are described from India. Palaeoneura razii is quite remarkable in having short axillar setae and the posterior margin of the fore wing without a distinct lobe and curve. Hence, together with another described species, P. farmani Amer and Zeya from India, this new taxon is placed in the informal farmani species group of the genus Palaeoneura. In addition, we record new country and state records for two other species, A. dilemma Triapitsyn and Berezovskiy and A. malabaricum Subba Rao, respectively. A key to the Indian genera of the Polynema group is also provided. Article LSID: http://urn:lsid:zoobank.org:pub:D844F28F-6883-4B17-B433-23D3231CE719 Species LSID: Palaeoneura razii Anwar, Zeya & Usman http://urn:lsid:zoobank.org:act:864A3309-9A66-4722-8F1C-40F32E0AAB82 Acmopolynema misbahae Anwar, Zeya & Usman http://urn:lsid:zoobank.org:act:E4721150-0824-4085-BEAD-376D7EBDE03","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42510809","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
Notes on two nests of Ancistrocerus oviventris (Wesmael, 1836), with new records of its prey and brood parasites (Hymenoptera: Vespidae: Eumeninae) 关于两个卵小蜂巢的说明(Wesmael,1836)及其猎物和繁殖寄生虫的新记录(膜翅目:小蜂科:小蜂亚科)
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-02-07 DOI: 10.1080/24750263.2023.2174191
P. Olszewski, A. Fateryga
{"title":"Notes on two nests of Ancistrocerus oviventris (Wesmael, 1836), with new records of its prey and brood parasites (Hymenoptera: Vespidae: Eumeninae)","authors":"P. Olszewski, A. Fateryga","doi":"10.1080/24750263.2023.2174191","DOIUrl":"https://doi.org/10.1080/24750263.2023.2174191","url":null,"abstract":"Abstract Two nests of Ancistrocerus oviventris (Wesmael, 1836) are described. One nest from Poland was attached to a concrete fence and consisted of 10 mud cells. The second nest from the Crimea was attached to a stone and consisted of three mud cells covered with an additional layer of mud and gravel particles. Females provisioned their cells with moth caterpillars of the families Crambidae and Depressariidae; 5–13 caterpillars were stored per cell. A chalcid wasp Monodontomerus aeneus (Fonscolombe, 1832) was recorded as a parasitoid while a cuckoo wasp Chrysis rutiliventris Abeille, 1879 and a sarcophagid fly Amobia sp. were recorded as kleptoparasites.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49241046","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: 2
Impact of water level on spring bird assemblages in a natural river valley in central Europe 中欧天然河谷中水位对春季鸟类群落的影响
IF 1.8 4区 生物学
European Zoological Journal Pub Date : 2023-02-06 DOI: 10.1080/24750263.2023.2170480
Ł. Krajewski, A. Goławski, Ł. Jankowiak, M. Polakowski
{"title":"Impact of water level on spring bird assemblages in a natural river valley in central Europe","authors":"Ł. Krajewski, A. Goławski, Ł. Jankowiak, M. Polakowski","doi":"10.1080/24750263.2023.2170480","DOIUrl":"https://doi.org/10.1080/24750263.2023.2170480","url":null,"abstract":"Abstract Water level appears to be crucial for waterbirds, especially in the changeable conditions prevailing in river valleys. One of the best preserved Central European rivers is the Biebrza in north-eastern Poland, which seasonally overflows in spring, creating optimal habitats for various waterbirds. We examined a number of environmental factors which could strongly influence different foraging groups and bird assemblages with respect to water surface area and depth. Number of waterbirds peaked during the second half of March, when a large wave of geese and ducks stopped over there. The species diversity was the greatest in the first half of April, when more species arrived from their wintering grounds. We did not find any relationship between water depth and total abundance, but the former did significantly influence the numbers of some ecological feeding groups of waterbirds, i.e. diving omnivores, diving carnivores and surface carnivores. We assume that higher water level in a river valley is favourable to birds during their spring passage, because it creates areas of shallow floodwater that are intensively used by many different aquatic species. Owing to the well-preserved hydrological conditions and its full protection as a national park, the Biebrza valley not only offers optimal conditions for migratory waterbirds, but is also a good research area for studies of the phenomena taking place in avian communities during their migratory staging.","PeriodicalId":56040,"journal":{"name":"European Zoological Journal","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44872771","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
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