Tropical Zoology最新文献_第9页

The genus Dubioniscus Vandel, 1963 (Oniscidea, Dubioniscidae) with descriptions of two new species from Brazil 杜鹃属，1963(杜鹃总科，杜鹃科)及两新种记述

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-06-17 DOI: 10.1080/03946975.2016.1179024

G. Cardoso, I. S. Campos-Filho, P. Araujo

引用次数: 10

Morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil 巴西棘棘鱼的形态和两性二态性

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-04-02 DOI: 10.1080/03946975.2016.1164559

A. Bager, Priscila da Silva Lucas, A. Costa, J. S. Lima, M. L. Silveira

{"title":"Morphology and sexual dimorphism of Acanthochelys spixii (Testudines, Chelidae) in Brazil","authors":"A. Bager, Priscila da Silva Lucas, A. Costa, J. S. Lima, M. L. Silveira","doi":"10.1080/03946975.2016.1164559","DOIUrl":"https://doi.org/10.1080/03946975.2016.1164559","url":null,"abstract":"Body size is an important parameter for ecology, reproduction, evolution, and development of animal species, besides understanding their taxonomic relationships and to establishing the relationships between individual size and shape. We evaluated the variation in body size traits, sexual dimorphism in populations of a turtle species Acanthochelys spixii across its distribution in Brazil and we described sex ratio in those populations. Description of the size-classes on these populations was also provided. We sampled 86 adults (16 in Minas Gerais (MG) and 70 in Rio Grande do Sul (RS)). The sex ratio was 1:1 in both sampling areas. Females were larger than males, and specimens from RS were larger than those from MG. The posterior-lobe width (PLW) was deemed the most significant sexing variable in a linear discriminant analysis of specimens within each state. Two variables, PLW and maximum carapace width, together distinguished the four groups (males and females in MG and RS) with 77% accuracy. Overall, most body measures were larger for both males and females in the southernmost population, inhabiting higher latitudes and lower temperatures. Regarding sexual size dimorphism, females had larger PLW than males in MG, and all variables were dimorphic in RS, in general females being larger than males.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2016-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2016.1164559","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382721","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: 3

Descriptions of four known species of the families Panagrolaimidae and Alloionematidae (Nematoda: Rhabditida) from Iran 文章题目伊朗线虫科和横纹线虫科四种已知种的描述

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-04-02 DOI: 10.1080/03946975.2016.1177384

Elahe Seddiqi, E. Shokoohi, N. Divsalar, J. Abolafia

引用次数: 0

Dietary preference and digestive physiology of plankti-benthivorous fishes inhabiting mudflats of Indian Sundarban estuaries 栖息在印度孙德班河口泥滩的浮游-底栖鱼类的饮食偏好和消化生理

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-03-21 DOI: 10.1080/03946975.2016.1154286

A. Chaudhuri, S. Mukherjee, S. Homechaudhuri

{"title":"Dietary preference and digestive physiology of plankti-benthivorous fishes inhabiting mudflats of Indian Sundarban estuaries","authors":"A. Chaudhuri, S. Mukherjee, S. Homechaudhuri","doi":"10.1080/03946975.2016.1154286","DOIUrl":"https://doi.org/10.1080/03946975.2016.1154286","url":null,"abstract":"In this study, the digestive physiology of 12 plankti-benthivorous species as functional analogues from intertidal mudflats of Indian Sundarbans was carried out in order to find out whether diet or phylogeny played a larger role in influencing digestive enzyme activity. Upon analysis of prey preferences, they were categorized into different trophic subgroups. Two dendrograms, one based on prey diversity and other on digestive enzymes of studied fish species were constructed through cluster analysis. These dendrograms were compared again with the phylogenetic tree constructed on the basis of the taxonomic positions. The specific nature of the enzymes in two plankti-detritivorous fishes appeared to possess a specific feeding behaviour and dietary preference though no clear predominance among digestive enzymes was observed. However, regardless of different feeding habits, four gobiid species showed similarity in their overall digestive enzyme patterns and clustered together. Despite mixed results, it can be concluded that digestive enzymes may serve as effective indicators of the feeding ecology of fishes, but the physiological requirements to live in specific trophic guilds may differ among families and therefore, influence of phylogeny on the digestive physiology could not be avoided without understanding the evolutionary specializations for these feeding modes in fishes.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2016.1154286","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382668","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

The function of intramandibular glands of the ant Neoponera villosa (Fabricius, 1804) (Hymenoptera: Ponerinae) 小黄蜂(fabicius, 1804)颌内腺的功能(膜翅目:小黄蜂科)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-01-02 DOI: 10.1080/03946975.2016.1139394

L. C. B. Martins, J. Delabie, J. Serrão

引用次数: 4

Feeding behaviors of three tropical scleractinian corals in captivity 三种热带硬核珊瑚在人工饲养条件下的摄食行为

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-01-02 DOI: 10.1080/03946975.2015.1119006

Pataporn Kuanui, S. Chavanich, V. Viyakarn, Heung-Sik Park, M. Omori

引用次数: 10

Effect of host density on life table statistics of Bracon hebetor Say, 1836 (Hymenoptera: Braconidae) 寄主密度对小蜂1836生命表统计的影响(膜翅目:小蜂科)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-01-02 DOI: 10.1080/03946975.2016.1145399

Deepak Singh, Raghvendra Singh, C. Tripathi

{"title":"Effect of host density on life table statistics of Bracon hebetor Say, 1836 (Hymenoptera: Braconidae)","authors":"Deepak Singh, Raghvendra Singh, C. Tripathi","doi":"10.1080/03946975.2016.1145399","DOIUrl":"https://doi.org/10.1080/03946975.2016.1145399","url":null,"abstract":"Bracon hebetor Say shows high fecundity and natural rate of increase which makes it a promising enemy against Corcyra cephalonica, a very common stored grain pest. The functional response of the parasitoid can determine potential of a species to act as a biocontrol agent; it defines parasitoid’s searching efficiency and provides an understanding of host–parasitoid interaction. The mean longevity of female parasitoids had no significant difference when maintained at different densities of host insects. However, progeny sex ratio was significantly affected when different host densities were maintained during its adult life. The net fecundity rate (R0) and total fecundity rate (Rt) were highest when host density was five hosts per reproductive chamber. The mean length of generation time (T.c.) was higher on host density one compared to other densities. The intrinsic rate of increase (rm) was highest when the host density was five and lowest on 20 hosts per reproductive chamber. Other life table parameters were also affected significantly. On the basis of life table statistics, we can say that this type of density-responsive behaviour can be considered to be the most stabilizing one.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2016-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2016.1145399","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382619","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: 9

What is driving the community structure of insects in arid ecosystems of Southern Africa? An example with blister beetles (Coleoptera: Meloidae) 是什么推动了非洲南部干旱生态系统中昆虫的群落结构?以水疱甲虫为例(鞘翅目:虫科)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2016-01-02 DOI: 10.1080/03946975.2016.1142308

M. Pitzalis, V. Amore, F. Montalto, L. Luiselli, M. Bologna

{"title":"What is driving the community structure of insects in arid ecosystems of Southern Africa? An example with blister beetles (Coleoptera: Meloidae)","authors":"M. Pitzalis, V. Amore, F. Montalto, L. Luiselli, M. Bologna","doi":"10.1080/03946975.2016.1142308","DOIUrl":"https://doi.org/10.1080/03946975.2016.1142308","url":null,"abstract":"A considerable part of community ecology literature questioned what are the main drivers of ecological relationships in an organismal community. We analysed this focal question by studying blister beetle (Meloidae) assemblages in Southern Africa. We explored the ecological distribution of 48 species across underlying bioclimatic (e.g. temperatures and precipitation regimes), environmental factors (biomes, vegetation structure) and the taxonomic heterogeneity of each groups inhabiting major biomes of Namibia across their main biological and ecological traits, by Canonical Correspondence in order to get an ordination plot. Monte Carlo methods were used to test for randomness of the data ordination. Ordination plot identified three main assemblages, one being constituted by strictly semiarid savannah species (camelthorn, mountain, karstweld, thornbush, mixed tree and shrub, dwarf shrub, mopane and forest savannahs), one much larger and less homogenous second assemblage, inclusive of more generalist species from Karoo and semi-desert habitats, living also in arid savannahs, and the third one including Nama Karoo species. All the three assemblages were taxonomically very heterogeneous, showing that phylogenetic relationships are probably less relevant than interspecific ecological relationships among species of the same group to determine present-day community structure in these animals.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2016-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2016.1142308","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382606","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

Cladistic analysis and evolutionary relationships of the “Megaxylocopa clade” of the genus Xylocopa Latreille, 1802 (Insecta: Hymenoptera: Apidae) 1802年木蜂属“大木蜂支系”的进化关系分析(昆虫亚目:膜翅目:蜂科)

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-10-02 DOI: 10.1080/03946975.2015.1107346

J. Mawdsley

{"title":"Cladistic analysis and evolutionary relationships of the “Megaxylocopa clade” of the genus Xylocopa Latreille, 1802 (Insecta: Hymenoptera: Apidae)","authors":"J. Mawdsley","doi":"10.1080/03946975.2015.1107346","DOIUrl":"https://doi.org/10.1080/03946975.2015.1107346","url":null,"abstract":"Computerized cladistic analysis was used to (1) develop a hypothesis of phylogenetic relationships among the three species of the well-defined “Megaxylocopa clade” within subgenus Neoxylocopa Michener, of the genus Xylocopa Latreille, and (2) examine relationships between the members of this clade and other species in the subgenus Neoxylocopa. Twenty-four adult morphological characters were scored for the three species in the “Megaxylocopa clade” plus 10 outgroup taxa from subgenus Neoxylocopa Michener. Xylocopa (Xylocopoides) virginica (Linnaeus) was used as a distant outgroup taxon to root the tree. A single most parsimonious tree was recovered by cladistic analysis using the computer software program TNT. The three species of the “Megaxylocopa clade” form a well-supported monophyletic group that is the sister-lineage of another monophyletic group that includes the other 10 species of subgenus Neoxylocopa. Within the “Megaxylocopa clade,” Xylocopa nautlana Cockerell and X. frontalis (Olivier) are sister-species, relative to X. fimbriata Fabricius.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2015-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2015.1107346","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382456","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

Modelling fine-scale habitat associations of medium-to-large forest mammals in the Udzungwa Mountains of Tanzania using camera trapping 利用相机陷阱对坦桑尼亚Udzungwa山脉中大型森林哺乳动物的精细尺度栖息地关联进行建模

IF 0.9 4区生物学

Tropical Zoology Pub Date : 2015-10-02 DOI: 10.1080/03946975.2015.1078568

Emanuel H. Martin, Nathalie Cavada, V. Ndibalema, F. Rovero

{"title":"Modelling fine-scale habitat associations of medium-to-large forest mammals in the Udzungwa Mountains of Tanzania using camera trapping","authors":"Emanuel H. Martin, Nathalie Cavada, V. Ndibalema, F. Rovero","doi":"10.1080/03946975.2015.1078568","DOIUrl":"https://doi.org/10.1080/03946975.2015.1078568","url":null,"abstract":"We used camera trap data collected in 2013 from 60 locations in the Udzungwa Mountains of Tanzania to determine fine-scale habitat associations for medium-to-large mammal species. The area is outstanding for biodiversity and endemism in Africa, particularly for mammals. Each camera trap sampled for 30 days and the survey yielded 12,911 images of 26 species. We used generalized linear modelling to determine relationships between camera-trapping events and vegetation and other habitat variables, and obtained satisfactory model fit for 9 out of the 11 most recorded species, with explained model deviance up to 63.7%. Results provide novel insights into the ecology of target species. For example, the event count of the IUCN-endangered Abbott's duiker (Cephalophus spadix) was positively correlated with distance to the park border, indicating preference for interior forest and avoidance of disturbance. The event count of the Eastern Arc-endemic Lowe's servaline genet (Genetta servalina lowei) was positively correlated with diversity of large trees but negatively correlated with visibility and herbaceous cover, indicating preference for mature forest habitat. Our study validates the usefulness of camera trapping to assess communities of forest mammals, especially as related to habitat associations, providing data that are of relevance to their conservation management.","PeriodicalId":54409,"journal":{"name":"Tropical Zoology","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2015-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03946975.2015.1078568","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59382884","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: 9