The Science of Nature最新文献_第3页

Effects of 6-methoxybenzoxazolinone (6-MBOA) on animals: state of knowledge and open questions 6-甲氧基苯并恶唑啉酮（6-MBOA）对动物的影响：知识现状与未决问题。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-08-14 DOI: 10.1007/s00114-024-01930-8

Jia-Yi Shi, Ke-Han Gu, Sheng-Mei Yang, Wan-Hong Wei, Xin Dai

{"title":"Effects of 6-methoxybenzoxazolinone (6-MBOA) on animals: state of knowledge and open questions","authors":"Jia-Yi Shi, Ke-Han Gu, Sheng-Mei Yang, Wan-Hong Wei, Xin Dai","doi":"10.1007/s00114-024-01930-8","DOIUrl":"10.1007/s00114-024-01930-8","url":null,"abstract":"<div><p>6-methoxybenzoxazolinone (6-MBOA) is a secondary plant metabolite predominantly found in monocotyledonous plants, especially Gramineae. In damaged tissue, 2-β-D-glucopyranosyloxy-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA-Glc) is hydrolyzed to DIMBOA, which spontaneously decomposes into 6-MBOA. It is commonly detected in plants consumed by voles and livestock and can also be present in cereal-based products. Discovered in 1955, this compound is renowned for its ability to trigger animal reproduction. However, there is a lack of research on its functional and mechanistic properties, leaving much of their potential unexplored. This review aimed to comprehensively summarize the effects of 6-MBOA on animal reproduction and human health, as well as its defensive role against herbivores. Studies have shown that 6-MBOA effectively inhibits the digestion, development, growth, and reproduction of insects. 6-MBOA may act as a partial agonist of melatonin and exert a regulatory role in mammalian reproduction, resulting in either promoting or inhibiting effects. 6-MBOA has been theorized to possess anti-tumor, anti-AIDS, anti-anxiety, and weight-loss effects in humans. However, insufficient attention has been paid to its defense properties against mammalian herbivores, and the mechanisms underlying its effects on mammalian reproduction remain unclear. In addition, research on its impact on human health is still in its preliminary stages. The review emphasizes the need for further systematic and comprehensive research on 6-MBOA to fully understand its diverse functions. Elucidating the effects of 6-MBOA on animal reproduction, adaptation, and human health would advance our understanding of plant–herbivore coevolution and the influence of environmental factors on animal population dynamics. Furthermore, this knowledge could potentially promote its application in human health and animal husbandry.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141974746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

How does the life cycle of Clinodiplosis profusa (Cecidomyiidae) adjust to phenological variations of the host plant Eugenia uniflora (Myrtaceae) in sun and shade? Clinodiplosis profusa（Cecidomyiidae）的生命周期如何适应寄主植物 Eugenia uniflora（桃金娘科）在阳光下和阴凉处的物候变化？

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-08-13 DOI: 10.1007/s00114-024-01931-7

Rayssa Rosa Marquesine, Pedro Henrique Pereira Gonçalves, Leticia Ponticel Nobrega, Dulce Mantuano, Bruno Garcia Ferreira

{"title":"How does the life cycle of Clinodiplosis profusa (Cecidomyiidae) adjust to phenological variations of the host plant Eugenia uniflora (Myrtaceae) in sun and shade?","authors":"Rayssa Rosa Marquesine, Pedro Henrique Pereira Gonçalves, Leticia Ponticel Nobrega, Dulce Mantuano, Bruno Garcia Ferreira","doi":"10.1007/s00114-024-01931-7","DOIUrl":"10.1007/s00114-024-01931-7","url":null,"abstract":"<div><p>Galls are plant neoformations induced by specialized parasites. Since gall inducers rely on reactive plant sites for gall development, variations in abiotic factors that affect plant phenology are expected to impact the life cycle of gall inducers. To test the hypothesis that different light conditions affect both host plant and gall inducer life cycles, we studied the system <i>Eugenia uniflora</i> (Myrtaceae) – <i>Clinodiplosis profusa</i> (Cecidomyiidae), comparing plants occurring in sunny and shaded environments. We mapped phenological differences among individuals of <i>E. uniflora</i> occurring in the two environments and related them to the influence of luminosity on the life cycle of the gall inducer. Shade plants showed lower intensity of leaf sprouting throughout the year compared to sun-exposed plants, especially during the rainy season. Young and mature galls are synchronized with the peak of leaf sprouting at the beginning of the rainy season, lasting longer in sun-exposed plants – approximately two months longer compared to shade plants. The greater light intensity positively impacts the formation and growth of leaves and galls, with an extended period available for their induction and growth. Thus, light is an important factor for the development of gallers, considering that variations in luminosity influenced not only the phenology of the host plant, but also determined the life cycle of gall inducers. Furthermore, changes in plant-environment interactions are expected to affect the life cycle and richness of other host plant—gall inducer systems.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141970348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Obstacle negotiation in female desert locust oviposition digging 雌性沙漠蝗掘取卵巢时的障碍协商。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-08-08 DOI: 10.1007/s00114-024-01929-1

Chen Klechevski, Lazar Kats, Amir Ayali

{"title":"Obstacle negotiation in female desert locust oviposition digging","authors":"Chen Klechevski, Lazar Kats, Amir Ayali","doi":"10.1007/s00114-024-01929-1","DOIUrl":"10.1007/s00114-024-01929-1","url":null,"abstract":"<div><p>The female locust lays its eggs deep within soft substrate to protect them from predators and provide optimal conditions for successful development and hatching. During oviposition digging, the female’s abdomen is pooled and extends into the ground, guided by a dedicated excavation mechanism at its tip, comprising two pairs of specialized digging valves. Little is known about how these active valves negotiate the various obstacles encountered on their path. In this study, female locusts oviposited their eggs in specialized sand-filled tubes with pre-inserted 3D-printed plastic obstacles. The subterranean route taken by the abdomen and digging valves upon encountering the obstacles was investigated, characterized, and compared to that in control tubes without obstacles. Data were obtained by way of visual inspection, by utilizing cone beam computed tomography scans in high-definition mode, and by making paraffin casts of the oviposition burrows (after egg hatching). We demonstrate, for the first time, the subterranean navigation ability of the female locust’s excavation mechanism and its ability to circumvent obstacles during oviposition. Finally, we discuss the role of active sensory-motor mechanisms versus the passive embodied function of the valves, central control, and decision-making.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11310224/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141900560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Public perception and acceptance of coypu Myocastor coypus removal in urban areas: influences of age and education 城市地区公众对移除眼镜蛇的看法和接受程度：年龄和教育程度的影响。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-08-02 DOI: 10.1007/s00114-024-01928-2

Andrea Viviano, Isabella De Meo, Emiliano Mori, Carlotta Sergiacomi, Alessandro Paletto

{"title":"Public perception and acceptance of coypu Myocastor coypus removal in urban areas: influences of age and education","authors":"Andrea Viviano, Isabella De Meo, Emiliano Mori, Carlotta Sergiacomi, Alessandro Paletto","doi":"10.1007/s00114-024-01928-2","DOIUrl":"10.1007/s00114-024-01928-2","url":null,"abstract":"<div><p>Monitoring and management of alien coypu (<i>Myocastor coypus</i>) is a key issue in Europe since this species has been included in the EU Invasive Alien Species Regulation 1143/2014. Thus, controlling the population of this rodent is considered as imperative by wildlife managers. Coypu management in urban areas is crucial considering potential conflicts with human activities. The aim of this study is to investigate citizens’ knowledge, perceptions and opinions towards the presence and management of coypu in a case study in Central Italy (the Serravalle urban park, Tuscany). The survey was administered to a subset of municipal residents and garnered responses from 281 park visitors. The outcomes showed a high level of knowledge of respondents: 99.3% of total respondents had heard of coypu before this survey, and 93.9% were able to distinguish the coypu from the Eurasian beaver (<i>Castor fiber</i>). Despite the importance of coypu control in invaded countries, our results highlight that most respondents are against the removal of coypu, with the exception of most young, highly-educated and upperclass men, but favouring sterilization over capture and population control. Findings of this study could assist managers in enhancing the efficacy of management efforts via an information initiative involving the general public. Achieving this goal may entail improved communication by wildlife managers, which is imperative for optimizing management strategies regarding alien species.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11297126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141873894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Ant-following behavior is correlated with plumage traits in African understory birds 非洲林下鸟类的追蚁行为与羽色特征相关。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-07-30 DOI: 10.1007/s00114-024-01927-3

Matthias Waltert, Janina Klug, Francis Njie Motombi, Benjamin Cejp, Kadiri Serge Bobo, Mahmood Soofi, Marcell K. Peters

{"title":"Ant-following behavior is correlated with plumage traits in African understory birds","authors":"Matthias Waltert, Janina Klug, Francis Njie Motombi, Benjamin Cejp, Kadiri Serge Bobo, Mahmood Soofi, Marcell K. Peters","doi":"10.1007/s00114-024-01927-3","DOIUrl":"10.1007/s00114-024-01927-3","url":null,"abstract":"<div><p>Ant-following behavior is a common phenomenon in birds of Neotropical and Afrotropical rainforests but yet little is known from Central Africa. We here report on the phenomenon in lowland rainforest in Cameroon, quantifying the strength of the interaction of different ant-following bird species with driver ants and test the hypothesis that higher levels of specialization in ant-following behavior are associated with dominance or aggression-dependent plumage and other morphological traits. Flock size varied between 1 and 11 individuals with a mean size of 5.34 ± 2.68 (mean ± SD) individuals occurring at the same time. The maximum number of species present during one raid observed was ten, whereas the minimum number was four with an overall species richness of 6.89 ± 2.1 species. The 21 attending bird species strongly varied in the degree of ant-following behavior. In an interspecific comparison, plumage traits such as the presence of a colored crown, eyespots, and bare skin around the eye, in combination with metatarsus length and weight, were significantly correlated with ant-following behavior. These results suggest that—in size and identity of species—ant-following bird assemblages in Central Africa are similar to those reported from East Africa. They also suggest that ant following favors the selection of traits that signal dominance in interactions between individuals struggling for valuable food resources in the forest understory.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11289350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141854493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 seabird’s eye view: visual fields of some seabirds (Laridae and Procellariidae) from tropical latitudes 海鸟的视角：热带地区一些海鸟（鸻科和疣鼻鱼科）的视野。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-07-17 DOI: 10.1007/s00114-024-01926-4

Eleanor A. Lucas, Graham R. Martin, Gérard Rocamora, Steven J. Portugal

{"title":"A seabird’s eye view: visual fields of some seabirds (Laridae and Procellariidae) from tropical latitudes","authors":"Eleanor A. Lucas, Graham R. Martin, Gérard Rocamora, Steven J. Portugal","doi":"10.1007/s00114-024-01926-4","DOIUrl":"10.1007/s00114-024-01926-4","url":null,"abstract":"<div><p>The visual field of a bird defines the amount of information that can be extracted from the environment around it, using the eyes. Previous visual field research has left large phylogenetic gaps, where tropical bird species have been comparatively understudied. Using the ophthalmoscopic technique, we measured the visual fields of seven tropical seabird species, to understand what are the primary determinants of their visual fields. The visual field topographies of the seven seabird species were relatively similar, despite the two groups of Terns (Laridae) and Shearwaters (Procellariidae) being phylogenetically distant. We propose this similarity is due to their largely similar foraging ecology. These findings support previous research that foraging ecology rather than relatedness is the key determining factor behind a bird’s visual field topography. Some bird species were identified to have more limited binocular fields, such as Brown Noddies (<i>Anous stolidus</i>) where binocularity onsets lower down within the visual field, resulting in a larger blind area about the head.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11254976/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141625592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Coastal dunes as drivers of genetic differentiation in the honeypot ant Myrmecocystus baja (Formicidae: Formicinae) 沿海沙丘是蜜罐蚁 Myrmecocystus baja（蚁科：蚁属）遗传分化的驱动因素。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-07-15 DOI: 10.1007/s00114-024-01925-5

F. Sara Ceccarelli, Le Roy A. Sankey Alamilla

{"title":"Coastal dunes as drivers of genetic differentiation in the honeypot ant Myrmecocystus baja (Formicidae: Formicinae)","authors":"F. Sara Ceccarelli, Le Roy A. Sankey Alamilla","doi":"10.1007/s00114-024-01925-5","DOIUrl":"10.1007/s00114-024-01925-5","url":null,"abstract":"<div><p>Coastal dunes are unique habitats, threatened by human activities. In biogeographical terms, coastal dunes are habitat islands, being discrete and distinct patches of similar habitat among themselves, separated from each other by a different type of habitat. Furthermore, coastal dunes harbor endemic species, adapted to living solely in the habitats found on specific dune systems. For example, the honeypot ant <i>Myrmecocystus baja</i> is endemic and restricted to coastal dunes of Mexico’s Baja California Pacific coast. This ecological and biogeographical scenario led to the questions whether their geographical isolation is reflected in their genetic diversity and structuring, and how their demographic history is related with the formation of the dune system habitats. To answer these questions, population genetic, isolation-with-migration, and phylogeographical analyses were carried out, based on mitochondrial and five nuclear intronic markers. Minimal gene flow was detected only between two of the dune systems sampled; otherwise, the <i>M. baja</i> populations were found to be isolated and genetically structured, and their divergence generally pre-dated the modern-day dune systems. It is therefore highly likely that these ants were already present in paleodunes and that each of the populations was established from founder populations as the dunes formed. These findings highlight the importance of coastal dunes for species such as the honeypot ant from Baja California, in promoting genetic differentiation.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141615606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Diverse growth rates in Triassic archosaurs—insights from a small terrestrial Middle Triassic pseudosuchian 三叠纪古龙的不同生长速度--来自三叠纪中期小型陆生伪蜥的启示。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-07-11 DOI: 10.1007/s00114-024-01918-4

Nicole Klein

{"title":"Diverse growth rates in Triassic archosaurs—insights from a small terrestrial Middle Triassic pseudosuchian","authors":"Nicole Klein","doi":"10.1007/s00114-024-01918-4","DOIUrl":"10.1007/s00114-024-01918-4","url":null,"abstract":"<div><p>The small pseudosuchian <i>Benggwigwishingasuchus eremacarminis</i> was found in Anisian (Middle Triassic) marine sediments. Neither the skeleton nor osteohistology or microanatomy shows any secondary aquatic adaptations, and a dominantly terrestrial lifestyle of this new taxon is evident. Bone tissue consists of a scaffold of parallel-fibered matrix, which is moderately vascularized by small, mainly longitudinal primary osteons. The innermost cortex is less densely vascularized and more highly organized. No parts of the cortex contain any woven bone. The cortex is regularly stratified by annual growth marks. Bone tissue and growth pattern indicate an adult individual that has had slow growth rates throughout its ontogeny. Tissue type, slow growth rate, and inferred low resting metabolic rate of <i>Benggwigwishingasuchus</i> are similar to that of crocodylomorphs but differ from that of <i>Sillosuchus</i> and <i>Effigia</i>, poposaurids to which <i>Benggwigwishingasuchus</i> is related based on phylogenetic analyses. However, according to current knowledge, growth rates in early archosaurs are more likely influenced by body size and environment than by phylogeny. <i>Benggwigwishingasuchus</i> is thus another example of unpredictable variability in growth rates within Triassic archosaurs.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11239758/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Antifungal capabilities of gut microbial communities of three dung beetle species (Scarabaeidae: Scarabaeinae) 三种蜣螂（Scarabaeidae: Scarabaeinae）肠道微生物群落的抗真菌能力。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-07-01 DOI: 10.1007/s00114-024-01923-7

Alberto Jácome-Hernández, Damaris Desgarennes, Roger Guevara, José Luis Olivares-Romero, Mario E. Favila

{"title":"Antifungal capabilities of gut microbial communities of three dung beetle species (Scarabaeidae: Scarabaeinae)","authors":"Alberto Jácome-Hernández, Damaris Desgarennes, Roger Guevara, José Luis Olivares-Romero, Mario E. Favila","doi":"10.1007/s00114-024-01923-7","DOIUrl":"10.1007/s00114-024-01923-7","url":null,"abstract":"<div><p>Gut microbial communities are part of the regulatory array of various processes within their hosts, ranging from nutrition to pathogen control. Recent evidence shows that dung beetle’s gut microbial communities release substances with antifungal activity. Because of the enormous diversity of gut microorganisms in dung beetles, there is a possibility of discovering novel compounds with antifungal properties. We tested the antifungal activity mediated by gut microbial communities of female dung beetles against nine phytopathogenic fungi strains (<i>Colletotrichum asianum-</i>339, <i>C. asianum-</i>340, <i>C. asianum-</i>1, <i>C. kahawae</i>-390, <i>C. karstii</i>-358, <i>C. siamense</i>-220, <i>Fusarium oxysporum</i>-ATCC338, <i>Nectria pseudotrichia</i>-232, <i>Verticillium zaelandica</i>-22). Our tests included the gut microbial communities of three species of dung beetles: <i>Canthon cyanellus</i> (roller beetle), <i>Digitonthophagus gazella</i> (burrower beetle), and <i>Onthophagus batesi</i> (burrower beetle), and we followed the dual confrontation protocol, i.e., we challenged each fungal strain with the microbial communities of each species of beetles in Petri dishes containing culture medium. Our results showed that gut microbial communities of the three dung beetle species exhibit antifungal activity against at least seven of the nine phytopathogenic fungal strains. The gut microbial communities of <i>Onthophagus batesi</i> significantly decreased the mycelial growth of the nine phytopathogenic fungi strains; the gut microbial communities of <i>Canthon cyanellus</i> and <i>Digitonthophagus gazella</i> significantly reduced the mycelial growth of seven strains. These results provide a basis for investigating novel antifungal substances within gut microbial communities of dung beetles.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141475656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigating the reproductive strategies of Deuterocohnia meziana (Bromeliaceae), an endangered and restricted species from South American rocky outcrops 调查南美洲岩石露头的濒危限制物种 Deuterocohnia meziana（Bromeliaceae）的繁殖策略。

IF 2.1 3区生物学

The Science of Nature Pub Date : 2024-07-01 DOI: 10.1007/s00114-024-01924-6

Kelly C. R. Arruda, Maurício Lenzi, Adriana Takahasi, Gecele M. Paggi

{"title":"Investigating the reproductive strategies of Deuterocohnia meziana (Bromeliaceae), an endangered and restricted species from South American rocky outcrops","authors":"Kelly C. R. Arruda, Maurício Lenzi, Adriana Takahasi, Gecele M. Paggi","doi":"10.1007/s00114-024-01924-6","DOIUrl":"10.1007/s00114-024-01924-6","url":null,"abstract":"<div><p>Studies of reproductive biology and resources availability to floral visitors by plant species are important to understand the plant-pollinator interactions that drive species adaptation. We aim to understand the relationship between reproduction mechanisms of <i>Deuterocohnia meziana</i> (Bromeliaceae) and pollinators. The species occurs in Bolivia and Paraguay, and it is the only species of the genus found in Brazil, where it is restricted to ironstone outcrops. These areas are currently threatened by the iron mining industry. Additionally, they face risks from fire occurrence and grazing by cattle. We analyzed the floral biology, reproductive system, phenology, and pollination ecology of a natural population of <i>Deuterocohnia meziana</i>, from ironstone outcrops in Brazil. The species exhibits diurnal anthesis, with stigma receptive throughout anthesis, and 77% of pollen viability. <i>Deuterocohnia meziana</i> produces relatively large amounts of nectar, especially early in the morning (32.8 ± 9.4 μl), with a mean sugar concentration of 23.5 (± 3.2) ºBrix. It is self-incompatible with a peak flowering occurring in August (dry season), although flowers are observed continuously throughout the year. The species exhibits two types of inflorescences, young and mature, among which an average of 13.1 and 3.6 flowers open per day, respectively. Hummingbirds and bees are the effective pollinators, although butterflies and ants also visit <i>D. meziana</i> flowers. The species is reliant on exogenous pollen and pollinators for fruit set. The continuous conservation of <i>D. meziana</i> populations and their communities is essential for preserving plant-pollinator mutualism and the floral community adapted to ironstone outcrops.</p></div>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"111 4","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141475657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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