Acta Zoologica最新文献_第2页

Age Structure and Size Variation in Three Closely Related Species of Casque-Headed Frogs of the Genus Trachycephalus (Hylidae: Lophyohylini) 冠头蛙属三种近缘种的年龄结构和体型变异（蛙科：冠头蛙）

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-04-17 DOI: 10.1111/azo.12552

Isabella Parreira, Fernanda B. Passaglia, Pedro P. de Queiroz, Anderson K. S. De-Lima, Reuber A. Brandão

{"title":"Age Structure and Size Variation in Three Closely Related Species of Casque-Headed Frogs of the Genus Trachycephalus (Hylidae: Lophyohylini)","authors":"Isabella Parreira, Fernanda B. Passaglia, Pedro P. de Queiroz, Anderson K. S. De-Lima, Reuber A. Brandão","doi":"10.1111/azo.12552","DOIUrl":"https://doi.org/10.1111/azo.12552","url":null,"abstract":"Parreira. I.P. 2025. Age structure and size variation in three closely related species of casque-headed frogs of the genus Trachycephalus (Hylidae: Lophyohylini)—Acta zoologica (Estocolmo). This study provides insights into longevity, sexual maturity and growth curves in closely related casque-headed treefrogs distributed across distinct Brazilian biomes. Age estimation based on the counting of lines of arrested growth (LAGs) in bone tissue revealed a longevity of 6 years in Trachycephalus nigromaculatus and T. atlas, which is uncommon among Neotropical species. T. mambaiensis exhibited a distinct pattern of sexual maturity compared to the other species, suggesting divergent developmental strategies within the clade and possibly reflecting a higher reproductive investment at younger ages. A correlation between estimated age and snout–vent length (SVL) was observed in two of the three analysed species (T. nigromaculatus and T. atlas); however, this correlation may vary depending on the sampled locality and sample size. The growth model revealed distinct patterns within the clade: T. nigromaculatus exhibited a decline in growth rate corresponding to the age of sexual maturity, whereas T. atlas showed a non-stabilised growth pattern. Our findings provide novel information for understanding the life history of explosive breeding species and emphasise the importance of museum specimens in ecological and evolutionary research.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"106 4","pages":"485-492"},"PeriodicalIF":1.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/azo.12552","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A micro-CT approach to the anatomy of Pectinariidae Quatrefages, 1866 (Annelida) Pectinariidae Quatrefages, 1866（环节动物）显微ct解剖方法

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-04-15 DOI: 10.1111/azo.12549

Julio Parapar, María Barroso, María Candás, Juan Moreira

{"title":"A micro-CT approach to the anatomy of Pectinariidae Quatrefages, 1866 (Annelida)","authors":"Julio Parapar, María Barroso, María Candás, Juan Moreira","doi":"10.1111/azo.12549","DOIUrl":"https://doi.org/10.1111/azo.12549","url":null,"abstract":"The Micro-computed X-ray tomography (micro-CT) technique is used to examine the external and internal anatomy of four species of Pectinariidae (Annelida: Terebellida): Amphictene auricoma, Cistenides granulata, Cistenides hyperborea and Lagis sp., from material collected off Iceland and NW Spain. The main aims were: (1) to provide new and additional observations on pectinariid external and internal anatomy, (2) to test the usefulness and limitations of micro-CT against other techniques and 3) to explore for characters with potential taxonomic value to be studied in the future. Micro-CT provided good images of several external relevant taxonomic characters such as paleae, cephalic veil, scaphe, scaphal hooks and anal lobe, but was especially useful for the examination of internal anatomy. The best visualized organs were those of higher tissue density (i.e. body musculature, digestive tract, main blood vessel, glands), whereas less electrodense tissues (i.e. peritoneal lining/septa, nephridia, nervous system) were less evident. Images of internal organs showed heterogeneous results: micro-CT may serve well to assess regionalization of digestive system and its variability across taxa, together with musculature and glands, while images of circulatory and nervous systems only show good results in their more electrodense components (main blood vessels/heart and ventral nerve cord/brain, respectively).","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"106 4","pages":"463-484"},"PeriodicalIF":1.3,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/azo.12549","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contaminant levels and their effects on the American continent chelonian: A systematic review 污染物水平及其对美洲大陆龟类的影响：系统综述

IF 1.1 4区生物学

Acta Zoologica Pub Date : 2025-03-29 DOI: 10.1111/azo.12550

Fernanda Victoria Nery Dias, Lucas Maia Garcês, Adriano Teixeira de Oliveira

{"title":"Contaminant levels and their effects on the American continent chelonian: A systematic review","authors":"Fernanda Victoria Nery Dias, Lucas Maia Garcês, Adriano Teixeira de Oliveira","doi":"10.1111/azo.12550","DOIUrl":"https://doi.org/10.1111/azo.12550","url":null,"abstract":"Excessive metal pollution from anthropogenic activities like mining and industrial waste discharge has increasingly impacted freshwater ecosystems. Freshwater chelonians (Testudines) are bioindicators of environmental pollution because of their longevity, ecological diversity, and trophic positioning. This systematic review assessed toxic metal bioaccumulation in freshwater turtles across the American continent, focusing on mercury (Hg), a global public health and ecological concern. A comprehensive search on PubMed, Scopus and Web of Science identified 620 papers, of which 32 met the inclusion criteria. The United States and Brazil (93.6%) contributed the most data, with Chelydra serpentina and Podocnemis expansa frequently studied, followed by Canada (4.26%) and Colombia (2.13%). Hg was the predominant contaminant (75% of studies), with the highest concentrations observed in hatchlings and keratinized tissues, such as carapace and claws. Bioaccumulation patterns varied by region, species and life stage, emphasizing physiological and reproductive impacts. This review highlights the need for noninvasive sampling methods and long-term monitoring to guide conservation strategies and assess ecosystem and turtle health. It also highlights the significant lack of data in South America and the lack of studies on juveniles and eggs. Freshwater chelonians remain essential for understanding contamination dynamics and mitigating environmental degradation in aquatic habitats.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"106 3","pages":"247-264"},"PeriodicalIF":1.1,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220378","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

Identification of loach fishes from Iran (Cypriniformes: Cobitoidea) using some osteological characters 伊朗泥鳅鱼的骨学特征鉴定（鲤形目：泥鳅总科）

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-03-11 DOI: 10.1111/azo.12541

Laith A. Jawad, Golnaz Sayyadzadeh, Hamid Reza Esmaeili

引用次数: 0

The relationships between fish length and otolith size of the striped snakehead, Channa striata (Bloch, 1793), collected from the River Ganga and its two tributaries in India 从印度恒河及其两条支流采集的条纹蛇头Channa striata （Bloch, 1793）鱼的长度与耳石大小之间的关系

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-02-22 DOI: 10.1111/azo.12540

Salman Khan, Laith A. Jawad, Mohammad Afzal Khan, Joo Myun Park, Ankita, Farah Bano, Kaish Miyan

{"title":"The relationships between fish length and otolith size of the striped snakehead, Channa striata (Bloch, 1793), collected from the River Ganga and its two tributaries in India","authors":"Salman Khan, Laith A. Jawad, Mohammad Afzal Khan, Joo Myun Park,  Ankita, Farah Bano, Kaish Miyan","doi":"10.1111/azo.12540","DOIUrl":"https://doi.org/10.1111/azo.12540","url":null,"abstract":"The relationship between the total length of fish and the morphometric characteristics of their otoliths (length, width, and weight) was examined in striped snakehead (Channa striata, Bloch, 1793) specimens collected from the River Ganga and its two tributaries in India. Channa striata, a commercially valuable species in India, was the focus of this study, which aimed to analyse the statistical correlations between the fish's total and standard lengths and their corresponding otolith measurements, with the expectation that the data will contribute to future research on the species' biology, particularly its age, and growth patterns. Both linear and non-linear regression models were applied, and the regression equations varied significantly between the three collection sites. These findings represent the first investigation into the relationship between otolith morphology and total fish length for striped snakehead from the River Ganga and its tributaries in India.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"107 1","pages":"86-94"},"PeriodicalIF":1.3,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145646442","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

Exploring diversity, abundance and ecological impacts of rodents in Saharan agriculture regions (Souf-Algeria) 探索撒哈拉农业地区啮齿类动物的多样性、丰度及其生态影响（南阿尔及利亚）

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-02-07 DOI: 10.1111/azo.12539

Zeid Alia, El Amine Khechekhouche, Djilani Ghemam Amara, Mohammed Messaoudi, Nezar Cherrada, Makhlouf Sekour, Sheikh F. Ahmad, Sabry M. Attia, Barbara Sawicka, Mohammed Messaoudi

{"title":"Exploring diversity, abundance and ecological impacts of rodents in Saharan agriculture regions (Souf-Algeria)","authors":"Zeid Alia, El Amine Khechekhouche, Djilani Ghemam Amara, Mohammed Messaoudi, Nezar Cherrada, Makhlouf Sekour, Sheikh F. Ahmad, Sabry M. Attia, Barbara Sawicka, Mohammed Messaoudi","doi":"10.1111/azo.12539","DOIUrl":"https://doi.org/10.1111/azo.12539","url":null,"abstract":"The following subject provides an in-depth look into the significance of rodents in the Souf region concerning agriculture and ecology. The article points out that rodents, as mammals, play a critical role in various ecosystems, with many mammalian species being rodents. They contribute to agriculture, sanitation, food, medicine, ecology and religion. Rodents play a vital role in vegetation dynamics by spreading plant seeds and influencing predator distribution. However, preying on crops can also cause losses in different ways, depending on the plant type and biotope. The study focuses on eight research stations in the Souf region, describing their characteristics and vegetation. The methods used for rodent inventory include fingerprinting, burrow counting and random trapping using different techniques. Statistical methods are then applied to analyse the collected data. The study identifies ten rodent species in the Souf region, belonging to two families, three subfamilies and five genera. The sex distribution varies among species. The study results reveal variations in rodent abundance across different stations and months, with Rattus rattus and Mus musculus being the most common species in certain stations. The diversity and equitability values indicate a relatively balanced distribution among recorded species in the sample period. The study provides comprehensive insights into rodent ecology, behaviour and distribution in the Souf region, emphasizing their importance and potential impacts on agriculture and ecosystems.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"107 1","pages":"76-85"},"PeriodicalIF":1.3,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145646746","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

Skeletal deformities in Sparus aurata from Türkiye: Incidences from Bafa Lake and the Aegean Sea 来自<s:1>基耶岛的光斑Sparus aurata骨骼畸形：来自巴法湖和爱琴海的发病率

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-02-02 DOI: 10.1111/azo.12538

Salim Serkan Güçlü, Laith A. Jawad, Habil Uğur Koca, Mehmet Cilbiz, Celalettin Aydın

{"title":"Skeletal deformities in Sparus aurata from Türkiye: Incidences from Bafa Lake and the Aegean Sea","authors":"Salim Serkan Güçlü, Laith A. Jawad, Habil Uğur Koca, Mehmet Cilbiz, Celalettin Aydın","doi":"10.1111/azo.12538","DOIUrl":"https://doi.org/10.1111/azo.12538","url":null,"abstract":"The first record of the abnormalities ankylosis (fusion of vertebrae), lordosis (V-shaped curvature of the vertebral column), kyphosis (Λ-shaped curvature), and kypholordosis (the presence of both conditions) have been reported in two specimens of Sparus aurata collected from Bafa Lake and Bodrum-Kıyıkışlacık Coast, Türkiye and used in this study. Both specimens displayed a severe level of deformity. All cases were non-fatal as they occurred in subadult individuals. Assessment of abnormality in the studied specimen was carried out by the morphological diagnosis and using mammography. Externally, the two specimens have a deeper body than the normal specimen. There was significant osteological damage has been revealed by the mammography of these deformed specimens. The saddleback anomaly is in the anterior part of the spinous part of the dorsal fin that showed no missing spines. In addition, the lateral line was deformed in both specimens examined. In addition, there were several minor skeletal abnormalities. These anomalies have been considered an important indicator of environmentally induced stress on the wild fishes. Hence, the present finding highlights the need for closer monitoring of the marine environment and for the identification of the specific factor that causes these abnormalities.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"107 1","pages":"67-75"},"PeriodicalIF":1.3,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145646608","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

Scanning electron microscopy analysis of the developmental, inter- and intraspecific variation in the otoliths of Anguilla anguilla (Linnaeus, 1758) collected from Bafa Lake in Western Anatolia, Türkiye 安圭拉（Linnaeus, 1758）耳石发育、种间及种内变异的扫描电镜分析

IF 1.1 4区生物学

Acta Zoologica Pub Date : 2025-01-28 DOI: 10.1111/azo.12536

Salim Serkan Güçlü, Habil Uğur Koca, Mehmet Cilbiz, Laith A. Jawad

{"title":"Scanning electron microscopy analysis of the developmental, inter- and intraspecific variation in the otoliths of Anguilla anguilla (Linnaeus, 1758) collected from Bafa Lake in Western Anatolia, Türkiye","authors":"Salim Serkan Güçlü, Habil Uğur Koca, Mehmet Cilbiz, Laith A. Jawad","doi":"10.1111/azo.12536","DOIUrl":"https://doi.org/10.1111/azo.12536","url":null,"abstract":"This study aimed to identify unique traits, grounded in a thorough description of the sagitta otolith of Anguilla anguilla, to characterize its ontogenetic stages between juvenile and preadult individuals. Twenty-one characteristics were designated to investigate the ontogenetic (when comparing the otolith characteristics of fishes of different sizes, interspecific variation (comparing the otolith characteristics of the studied species with those of related species), and intraspecific variation (comparing the otolith characteristics of the studied species with those of the same species from different localities, i.e. geographical variation). This investigation concluded that the sagittal otoliths exhibited ontogenetic disparities based on the shapes recorded by different age groups. Otoliths of the young individuals belonging to fish total length groups GI and GII have shown differences in shape from those of the older individuals in the other seven length groups surveyed. An assessment of previously available otolith descriptions of A. anguilla collected from other areas revealed differences between species across larger geographic areas, making some features unsuitable for further investigation. However, other otolith traits were found to be reliable across different length groups and could be considered species-specific features for identification. These traits include otolith width, otolith thickness, the shape of the mesial and lateral surfaces, the shape of the sulcus acusticus, the presence or absence of ostio-caudal differentiation, and the shape, size, and thickness of the rostrum.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"106 3","pages":"329-342"},"PeriodicalIF":1.1,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220322","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

Correction to “Microanatomy of the digestive tract and accessory organs of the Japanese flathead (Inegocia japonica Cuvier, 1829) (Scorpaeniformes, Platycephalidae)” 修正“日本平头鱼（ingocia japonica Cuvier, 1829）（scorpaenformes, Platycephalidae）消化道和附属器官的显微解剖”

IF 1.1 4区生物学

Acta Zoologica Pub Date : 2025-01-27 DOI: 10.1111/azo.12537

引用次数: 0

Natural history of the small snake Epictia munoai (Scolecophidia; Leptotyphlopidae): Reproductive cycle, sexual maturity and activity pattern 小蛇鳞蛇科的自然历史：生殖周期、性成熟和活动模式

IF 1.3 4区生物学

Acta Zoologica Pub Date : 2025-01-26 DOI: 10.1111/azo.12535

Conrado Mario-Da-Rosa, Amanda J. C. Brum, Luiza Loebens, Tiago G. Santos, Sonia Z. Cechin

{"title":"Natural history of the small snake Epictia munoai (Scolecophidia; Leptotyphlopidae): Reproductive cycle, sexual maturity and activity pattern","authors":"Conrado Mario-Da-Rosa, Amanda J. C. Brum, Luiza Loebens, Tiago G. Santos, Sonia Z. Cechin","doi":"10.1111/azo.12535","DOIUrl":"https://doi.org/10.1111/azo.12535","url":null,"abstract":"Epictia munoai is a small scolecophidian snake from the subtropical region of South America. It inhabits under rocks of preserved environments. Since basic information concerning the biology of this snake remains unknown, we aimed at presenting information on age, reproductive cycle, and daily and annual activity patterns of E. munoai from Southernmost Brazil. Males and females of E. munoai becomes sexually mature from 3 to 4 years of age, and presents a life expectancy of up to 9 or 10 years. The breeding cycle at the individual level is cyclical and discontinuous, and seasonal at the population level, with breed season from late winter to late spring. Epictia munoai is a diurnal snake, active under rocks during the hottest periods of the day, especially during the spring in southern latitudes. Our results provide new and unprecedented information about the natural history of a small species of South American fossorial snake. Information like this is extremely important as it helps to understand the life history of a species, in addition to serving as a basis for studies in areas such as population ecology, historical demography, phylogeography and conservation biology.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":"107 1","pages":"54-66"},"PeriodicalIF":1.3,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145646451","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