Journal of Tropical Ecology最新文献_第6页

Seasonal dietary niche changes in Neotropical bats 新热带蝙蝠的季节性饮食生态位变化

4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2023-01-01 DOI: 10.1017/s0266467423000238

Sebastião Maximiano Corrêa Genelhú, Rafael de Souza Laurindo, Arthur Setsuo Tahara, Letícia Langsdorff Oliveira, Renato Gregorin

{"title":"Seasonal dietary niche changes in Neotropical bats","authors":"Sebastião Maximiano Corrêa Genelhú, Rafael de Souza Laurindo, Arthur Setsuo Tahara, Letícia Langsdorff Oliveira, Renato Gregorin","doi":"10.1017/s0266467423000238","DOIUrl":"https://doi.org/10.1017/s0266467423000238","url":null,"abstract":"Abstract In the vast Neotropic seasonal environment, the most diverse family of bats, the Phyllostomidae (leaf-nosed bats), includes up to 93 species. As the quality and quantity of food resources fluctuate in the habitats, diet heterogeneity is observed among bat species and regions of the Neotropics. In this study, we investigated by faecal analyses, how the dietary niche (DN) of eight Phyllostomidae bat species ( Artibeus planirostris , A. fimbriatus , Carollia brevicauda , C. perspicillata , Chiroderma villosum , Glossophaga soricina , Platyrrhinus lineatus , and Sturnira lilium ) that occur in a karstic area in the Midwest region of Minas Gerais, Brazil, change in response to seasonal food availability. We recorded the consumption of insects and nine plant families. Moraceae was the most frequent, followed by Piperaceae. Given that seasonal dietary changes can be subtle and hardly noticeable along with fluctuating habitat conditions, we performed the DN decomposition of the eight bats species into subniches, by analysing the data with the WitOMI, which is a decomposition of the niche into temporal subniches. By improving the accuracy and details of the results, we assessed the effects of abiotic (precipitation and environmental temperature) and biotic (quantity and quality of food resources) interactions within the phyllostomid bat community. For each species, we compared niche breadth and overlap and found higher values for the dry season among morphologically similar species. The results of our study suggest that ecologically similar bat species coexist occupying different DNs.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135599903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Report on an outbreak of coral-killing sponge Clathria (Microciona) aceratoobtusa in an unprotected reef of the Gulf of Mannar, India 印度马纳尔湾一处未受保护的珊瑚礁爆发灭珊瑚海绵藻(Microciona) aceratootusa

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-13 DOI: 10.1017/S0266467422000487

K. D. Raj, Jonathan Samuel Emmett, G. Mathews

引用次数: 0

Turnover in fish species composition is related to water colour of Amazonian rivers 鱼类组成的变化与亚马孙河的水色有关

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-09 DOI: 10.1017/S0266467422000451

S. Borges, Deyse Darse D’Aquino, Marcela Victória da Cruz, Ramison Felipe de Souza

{"title":"Turnover in fish species composition is related to water colour of Amazonian rivers","authors":"S. Borges, Deyse Darse D’Aquino, Marcela Victória da Cruz, Ramison Felipe de Souza","doi":"10.1017/S0266467422000451","DOIUrl":"https://doi.org/10.1017/S0266467422000451","url":null,"abstract":"Abstract Variation in water colour is a remarkable characteristic of Amazonian rivers and reflects their limnological properties and the geomorphology of sub-basins. We present here a literature-based study to examine the relationships between fish species turnover and abiotic properties of Amazonian rivers with contrasting water colours. We analysed fish records and water physicochemical properties (pH, colour, turbidity, dissolved oxygen, ammonia and suspended solids) of eight Amazonian rivers with white-, black- and clearwaters. Rivers with similar water colour shared more fish species than those that contrasted in colour. Increased differences in abiotic parameters imply an increased dissimilarity in fish species composition. Species composition is also related to distance among rivers with high dissimilarity observed in rivers distant to each other. The fish species turnover could be ultimately driven by the geological history of rivers which provides different opportunities to speciation and biotic interchange. Water types likely influence species turnover by selecting fishes with different limits of physiological tolerance and specialized use of different habitat types. Our findings suggest that river water colours are reliable proxies for historical and ecological mechanisms affected fish species distribution. Antropic disturbances of Amazonian rivers with distinct water colours could threaten unique fish assemblages.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45682974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hail-caused greenfall leaves, litterfall, nutrients, and leaf decomposition in tropical cloud forest and a restoration planting 热带云雾林中冰雹引起的绿叶、凋落物、营养物质和树叶分解以及恢复种植

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-09 DOI: 10.1017/S0266467422000475

G. Williams‐Linera, Javier Tolome, C. Alvarez-Aquino

{"title":"Hail-caused greenfall leaves, litterfall, nutrients, and leaf decomposition in tropical cloud forest and a restoration planting","authors":"G. Williams‐Linera, Javier Tolome, C. Alvarez-Aquino","doi":"10.1017/S0266467422000475","DOIUrl":"https://doi.org/10.1017/S0266467422000475","url":null,"abstract":"Abstract Greenfall leaves caused by hailstorms may represent a resource pulse of nutrients. We determined the contribution of greenfall versus senescent leaves to total litterfall production, carbon, nitrogen and phosphorus input to the system, and leaf decomposition rate. Litterfall was collected monthly for three years in two cloud forests (F1, F2) and a restoration planting area (R) in Veracruz, Mexico. Two fortuitous hailstorms occurred in the second year. Leaf decomposition rate was determined in all three sites but did not differ across them. Total annual litterfall, excluding greenfall, was 10.0, 10.1, and 7.7 Mg ha−1 y−1 for F1, F2, and R, respectively. Senescent leaves represented 65% of the litterfall, while greenfall leaves increased the annual leaf biomass component of the litterfall by 12%. Concentrations of carbon, nitrogen, and phosphorus were 2.3, 5.7, and 18.1% higher, respectively, in greenfall than in senescent leaves. Greenfall increased the annual input of C, N, and P by 12, 13, and 14%, respectively. Despite their short duration (approximately 70 minutes), the hailstorm events generated a substantial contribution of greenfall leaves and a source of extra C, N, and P, since these leaves decompose and are incorporated into the cloud forest system.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45237315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correlates of plant β-diversity in Atlantic Forest patches in the Pernambuco Endemism Centre, Northeastern Brazil 巴西东北部伯南布哥地方病中心大西洋森林斑块植物β-多样性的相关性

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-09 DOI: 10.1017/S0266467422000426

Isabel Cristina C. Guedes, B. L. C. de Moraes, R. Hilário, J. P. Souza‐Alves

{"title":"Correlates of plant β-diversity in Atlantic Forest patches in the Pernambuco Endemism Centre, Northeastern Brazil","authors":"Isabel Cristina C. Guedes, B. L. C. de Moraes, R. Hilário, J. P. Souza‐Alves","doi":"10.1017/S0266467422000426","DOIUrl":"https://doi.org/10.1017/S0266467422000426","url":null,"abstract":"Abstract Understanding how vegetation structure and floristic composition vary across landscapes is fundamental to understand ecological patterns and for designing conservation actions. In a patch-landscape approach, we assessed the β-diversity (q0 order – rare species, q1 order – common species, and q2 order – dominant species) of plants between forest patches and surveyed plots in Atlantic Forest patches located in the Pernambuco Endemism Centre, northeastern Brazil. Furthermore, we tested the influence of predictor variables linked to landscape (forest cover and edge density) and habitat (basal area), as well as the geographical distance between forest patches and plots on the β-diversity in each forest patch and plot. We measured and identified a total of 1,682 individuals (trees and lianas), corresponding to 248 species, 116 genera, and 56 families in 10 plots (50 × 2 m) from each forest patch. The β-diversity presented lower values for the Mata de Água Azul patch at a landscape scale (i.e., between forest patches) and Mata dos Macacos patch at a site scale (i.e., between plots) for all orders. Geographical distance positively influenced the β-diversity at the landscape scale, and higher turnover between plots (e.g., within forest patches) was positively associated with differences in geographical distance, edge density, forest cover, and basal area. Our results indicate the need to conserve forest patches distributed across a wide area (distant sites) that encompass different landscape contexts with different vegetation structures, in order to conserve greater floristic diversity.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48130600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Larger insects in a colder environment? Elevational and seasonal intraspecific differences in tropical moth sizes on Mount Cameroon 更大的昆虫在更冷的环境?喀麦隆山热带飞蛾大小的海拔和季节差异

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-09 DOI: 10.1017/S0266467422000463

Fotoula Papandreou, J. Hodeček, Vincent Maicher, Sylvain Delabye, T. Pyrcz, R. Tropek

{"title":"Larger insects in a colder environment? Elevational and seasonal intraspecific differences in tropical moth sizes on Mount Cameroon","authors":"Fotoula Papandreou, J. Hodeček, Vincent Maicher, Sylvain Delabye, T. Pyrcz, R. Tropek","doi":"10.1017/S0266467422000463","DOIUrl":"https://doi.org/10.1017/S0266467422000463","url":null,"abstract":"Abstract Bergmann’s Rule describes an increase in the body size of endothermic animals with decreasing environmental temperatures. However, in ectothermic insects including moths, some of the few existing studies investigating size patterns along temperature gradients do not follow the Bergmann’s Cline. Intraspecific differences in moth sizes along spatiotemporal temperature gradients are unknown from the Palaeotropics, hindering general conclusions and understanding of the mechanism responsible. We measured intraspecific forewing size differences in 28 Afrotropical moth species sampled in 3 seasons along an elevational gradient on Mount Cameroon, West/Central Africa. Size increased significantly with elevation in 14 species but decreased significantly in 5 species. Additionally, we found significant inter-seasonal size differences in 21 species. Most of these variable species had longer forewings in the transition from the wet to dry season, which had caterpillars developing during the coldest part of the year. We conclude that environmental temperature affects the size of many Afrotropical moths, predominantly following prevailingly following Bergmann’s Cline. Nevertheless, the sizes of one-third of the species demonstrated a significant interaction between elevation and season. The responsible mechanisms can thus be assumed to be more complex than a simple response to ambient temperature.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43520925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bat diversity is driven by elevation and distance to the nearest watercourse in a terra firme forest in the northeastern Brazilian Amazon 在巴西亚马逊东北部的一片陆地森林中，蝙蝠的多样性是由海拔和与最近水道的距离决定的

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-09 DOI: 10.1017/S0266467422000438

Marcelo Martins Ferreira, B. S. Xavier, P. E. Bobrowiec, Isaí Jorge de Castro, R. Hilário, A. C. da Cunha, Leidiane Leão de Oliveira, J. J. Toledo, W. D. Carvalho

{"title":"Bat diversity is driven by elevation and distance to the nearest watercourse in a terra firme forest in the northeastern Brazilian Amazon","authors":"Marcelo Martins Ferreira, B. S. Xavier, P. E. Bobrowiec, Isaí Jorge de Castro, R. Hilário, A. C. da Cunha, Leidiane Leão de Oliveira, J. J. Toledo, W. D. Carvalho","doi":"10.1017/S0266467422000438","DOIUrl":"https://doi.org/10.1017/S0266467422000438","url":null,"abstract":"Abstract Variations in environmental conditions along gradients play an important role in species distribution through environmental filtering of morphological and physiological traits; however, their effects on bat diversity remain poorly understood. Here, we investigate the effect of the distance to the nearest watercourse, terrain elevation, vegetation clutter, basal area and canopy height on taxonomic, functional and phylogenetic diversity and on the predominance of some functional traits (body mass, wing morphology and trophic level) of bat assemblages (phyllostomid and mormoopid bats) in a terra firme forest, in the northeastern Brazilian Amazon. We captured bats using mist nets in 15 permanent plots over a 25 km2 area of continuous forest. We captured 279 individuals belonging to 28 species with a total of 77.760 m2.h of sampling effort. Our results showed that bat richness increases as a function of distance to the nearest watercourse and that the assemblage also changes, with more diverse taxonomic and functional groups in areas further from the watercourse. Furthermore, elevation positively affects species richness, and the basal area of the forest positively influences the average body mass of bats. Taken together, our results demonstrate that subtle variations in the environmental conditions along a local scale gradient impact on the main dimensions of bat diversity in primary forests.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":"39 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42583715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of seed size and toucan regurgitation on the germination of the tropical tree Eugenia uniflora 种子大小和巨嘴鸟反流对热带树种独叶Eugenia萌发的影响

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-09 DOI: 10.1017/S026646742200044X

Landon R. Jones, Chelsey A. Hunts, L. Dolan, Natasha K. Murphy, Gabrielle N. Ripa, E. A. Schultz, Varsha S. Shastry, Craig A. Sklarczyk, Bradly Thornton, Melanie R. Boudreau

{"title":"Effects of seed size and toucan regurgitation on the germination of the tropical tree Eugenia uniflora","authors":"Landon R. Jones, Chelsey A. Hunts, L. Dolan, Natasha K. Murphy, Gabrielle N. Ripa, E. A. Schultz, Varsha S. Shastry, Craig A. Sklarczyk, Bradly Thornton, Melanie R. Boudreau","doi":"10.1017/S026646742200044X","DOIUrl":"https://doi.org/10.1017/S026646742200044X","url":null,"abstract":"Abstract Understanding the quality of seed dispersal effectiveness of frugivorous species can elucidate how endozoochory structures tropical forests. Large seeds, containing more resources for growth, and gut passage by frugivores, which remove seed pulp, both typically enhance the speed and probability of germination of tropical seeds. However, the interaction of seed size and gut passage has not been well studied. We assessed the role of two species of toucans (Ramphastos spp.) in seed germination of the tropical tree Eugenia uniflora, which produces seeds that vary considerably in size (3.7–14.3 mm), using 151 control and 137 regurgitated seeds in germination trials. We found that toucan regurgitation did not increase germination success, although 93.4% germinated compared to 76.8% of control seeds; however, larger seeds germinated more often at faster rates. Although only marginally significant, germination rates were 3.6× faster when seeds were both large and regurgitated by toucans, demonstrating that toucan regurgitation can disproportionally benefit larger E. uniflora seeds. As tropical forests are increasingly disturbed and fragmented by human activities, the ability of toucans to continue providing seed dispersal services to degraded habitats may be vital to the persistence of many tropical plants that contain larger seeds and depend on larger dispersers.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44073103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

National parks and conservation concessions: a comparison between mammal populations in two types of tropical protected areas in Ucayali, Peru 国家公园和保护区：秘鲁乌卡亚利两类热带保护区哺乳动物种群的比较

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-12-07 DOI: 10.1017/S0266467422000414

Rocío Bardales, M. Hyde, Jenny Gallo, Valeria Boron

引用次数: 0

The influence of burial depth on germination and establishment of seeds in chimpanzee faeces, Taï National Park, Côte d’Ivoire 埋深对黑猩猩粪便中种子萌发和形成的影响，Taï国家公园，Côte科特迪瓦

IF 1.4 4区环境科学与生态学

Journal of Tropical Ecology Pub Date : 2022-10-12 DOI: 10.1017/s0266467422000402

K. K. S. Koffi, K. Dosso, Marios Aristophanous, P. Moretto, Seydou Tiho, R. Wittig

{"title":"The influence of burial depth on germination and establishment of seeds in chimpanzee faeces, Taï National Park, Côte d’Ivoire","authors":"K. K. S. Koffi, K. Dosso, Marios Aristophanous, P. Moretto, Seydou Tiho, R. Wittig","doi":"10.1017/s0266467422000402","DOIUrl":"https://doi.org/10.1017/s0266467422000402","url":null,"abstract":"\u0000 One of the many ecosystem services provided by dung beetles is that of secondary seed dispersal. This paper experimentally evaluates the effectiveness of this service using the chimpanzee–dung beetle seed dispersal system in Taï National Park, Côte d’Ivoire. The study focussed on the germination rate and success of four species of seeds contained in the faeces of Pan troglodytes verus: Dacryodes klaineana (Pierre) H.J. Lam, Diospyros mannii Hiern, Pycnanthus angolensis (Welw.) Warb., and Uapaca guineensis Muell. Arg. For each species, 600 seeds, half from chimpanzee faeces and half from mother trees, were sown in nurseries at depths of 0, 2, 5, 10, and 15 cm (i.e. 120 seeds per depth; 60 from chimp and 60 from mother trees). After germination, only the seeds of Uapaca guineensis and Diospyros mannii sown at 2 and 5 cm had a >14% rate (between 14.2 and 30.8%) of germination and seedling establishment, regardless of seed origin. An increase in the depth of seed burial appears to negatively affect the probability of seedling emergence and establishment. This study shows that dung beetles have positive impacts on seed fate. However, for these plant species, the chimpanzee’s role is limited to that of primary seed dispersal.","PeriodicalId":49968,"journal":{"name":"Journal of Tropical Ecology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42795435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0