Ecological Research最新文献

Analysis of Occupancy and Activity Pattern of the Water Deer Using Remote Camera Traps 利用远程相机陷阱分析水鹿的占用和活动模式

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-18 DOI: 10.1111/1440-1703.70050

Naeyoung Kim, Jin Hong Lee, YongSu Park, Young-Han You, Jun-Soo Kim

Water deer (Hydropotes inermis) are classified as “Vulnerable” on the IUCN Red List due to their declining population trend, indicating global conservation concern. However, water deer are considered a harmful species in South Korea, where the population is relatively abundant. The population status of water deer varies across their geographical range, but information on their distribution remains limited due to insufficient research and reporting. This study therefore aimed to identify the environmental variables influencing the distribution of water deer and to provide insights into their daily behavior patterns. Camera traps were deployed at 108 points within 22 grid cells (each 5 km × 5 km) located in the central-eastern part of the Korean Peninsula from March to September 2021. Water deer were detected 92 times across 17 grid cells. A single-season occupancy model revealed that occupancy decreased with an increase in normalized difference vegetation index (NDVI) ( $� � � �_{β � NDVI �} � � �$ : −3.36 ± 0.17), which is presumed to be related to the use of forbs or low woody plants as food resources. Detection was influenced by slope, with higher slopes likely limiting mobility and thereby reducing detection ( $� � � �_{β � slope �} � � �$ : −0.60 ± 0.15). The diurnal behavior patterns were confirmed to be crepuscular, with activity primarily around sunrise and sunset. These findings are expected to enhance understanding of this species and may be used for the management of water deer as a problematic species in South Korea, as well as for international conservation efforts.

鹿（Hydropotes inermis）因其数量呈下降趋势，被世界自然保护联盟（IUCN）列为“易危”物种，表明了全球对保护的关注。然而，在数量相对丰富的韩国，水鹿被认为是一种有害物种。水鹿的种群状况在不同的地理范围内存在差异，但由于研究和报告的不足，有关其分布的信息仍然有限。因此，本研究旨在确定影响水鹿分布的环境变量，并提供对其日常行为模式的见解。从2021年3月至9月，在朝鲜半岛中东部22个网格单元（每个5公里× 5公里）内的108个点部署了相机陷阱。在17个网格细胞中检测到92次水鹿。单季节占用率模型显示，随着归一化植被指数（NDVI）的增加，占用率呈下降趋势（β NDVI $$ {beta}_{NDVI} $$:−3.36±0.17），推测这与利用草本植物或低木本植物作为食物资源有关。检测受坡度影响，较高的坡度可能会限制流动性，从而降低检测（β斜率$$ {beta}_{slope} $$:−0.60±0.15）。白天的行为模式被证实是黄昏的，活动主要在日出和日落前后。这些发现有望增进对该物种的了解，并可用于韩国作为问题物种的水鹿的管理，以及国际保护工作。

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引用次数: 0

Construction of High-Precision Genomic Assembled Sequences and Assessment of the Effect of Its Quality to Population Genetic Analysis of Endangered Okinawa Rail and Japanese Golden Eagle 濒危冲绳县铁路和日本金鹰高精度基因组组装序列的构建及其质量对种群遗传分析的影响

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-17 DOI: 10.1111/1440-1703.70051

Yu Sato, Kei Nabeshima, Atsushi Haga, Manabu Onuma

Recent advances in whole genome sequencing (WGS) technology, particularly long-read sequencing, have enabled the development of high-precision reference genome assemblies for non-model wild mammals and birds. The decreasing costs of WGS facilitate numerous global genomic initiatives, and genetic analysis based on genomic data is imperative for population genetics and conservation genetics. Genomic analysis provides precise insights into genetic diversity and inbreeding in endangered animals, but requires a high-quality genome assembly. The absence of such assemblies can lead to a biased understanding of genetic diversity and misdirected conservation strategies. In this study, we developed high-precision genome assemblies for two endangered Japanese animals, the Okinawa rail and the Japanese golden eagle, using a hybrid approach that combines short- and long-read sequencing. This approach improved assembly contiguity, reduced missing data, and enhanced completeness. We also assessed how assembly quality influences genetic analysis by comparing results from population genetic analyses based on previous and newly established assemblies. The findings of this assessment indicated that genome-wide heterozygosity and PSMC modeling were less sensitive to assembly quality. However, inbreeding analysis based on runs of homozygosity (ROH) was significantly affected by fragmentation of assembly. Consequently, high-precision, contiguous assemblies are essential for accurate conservation genetic analyses, particularly for assessing inbreeding. In the absence of a high-quality assembly, developing new ones is a viable alternative. Our hybrid approach combining Nanopore long-read sequencing and short-read sequencing enables the cost-effective development of high-quality genome assemblies, making it suitable for non-model animals.

全基因组测序（WGS）技术的最新进展，特别是长读段测序，使非模式野生哺乳动物和鸟类的高精度参考基因组组装成为可能。WGS成本的降低促进了许多全球基因组计划，基于基因组数据的遗传分析对群体遗传学和保护遗传学至关重要。基因组分析为濒危动物的遗传多样性和近亲繁殖提供了精确的见解，但需要高质量的基因组组装。缺乏这样的组合可能导致对遗传多样性的有偏见的理解和错误的保护策略。在这项研究中，我们利用结合短读和长读测序的混合方法，为两种濒临灭绝的日本动物——冲绳铁路和日本金鹰——开发了高精度的基因组组装。这种方法改进了汇编的连续性，减少了丢失的数据，并增强了完整性。我们还通过比较基于以前和新建立的装配的群体遗传分析结果来评估装配质量如何影响遗传分析。该评估结果表明，全基因组杂合性和PSMC建模对装配质量的敏感性较低。然而，基于纯合子数（ROH）的近交分析受到装配片段化的显著影响。因此，高精度、连续的组装对于准确的保护遗传分析是必不可少的，特别是对于评估近交。在缺乏高质量组件的情况下，开发新的组件是一个可行的选择。我们的混合方法结合了纳米孔长读测序和短读测序，使高质量基因组组装的成本效益发展，使其适用于非模型动物。

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引用次数: 0

Adaptive Significance of Nickel Hyperaccumulation by Plants 植物对镍超富集的适应意义

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-16 DOI: 10.1111/1440-1703.70053

Molly E. Waddington, Robert S. Boyd, Nishanta Rajakaruna

Nickel (Ni) hyperaccumulation in plants is an unusual attribute that imposes significant physiological costs. Persistence of Ni hyperaccumulation across a range of taxa suggests a significant evolutionary advantage to this trait. This review examines seven non-mutually exclusive hypotheses to explain the evolution of Ni hyperaccumulation in plants. The hypotheses include elemental defense, elemental allelopathy, drought tolerance, inadvertent uptake, enhanced reproductive fitness, incremental advantage, and metal tolerance and disposal. While our main focus is on Ni hyperaccumulation, we also include selected information about the hyperaccumulation of other metals where relevant to the seven hypotheses. Additionally, we discuss common experimental techniques used when studying Ni hyperaccumulation and recognize recent advances in technology available to study hyperaccumulation. We also identify current gaps in research that should be prioritized to help us better understand the evolutionary significance of metal hyperaccumulation.

镍（Ni）在植物中的过度积累是一种不寻常的特性，它会带来巨大的生理代价。镍超积累在一系列分类群中的持续存在表明这一特征具有显著的进化优势。本文综述了七个不相互排斥的假说来解释植物镍超积累的进化。这些假设包括元素防御、元素化感作用、耐旱性、无意摄取、增强生殖适应性、增量优势和金属耐受性和处置。虽然我们的主要重点是镍的超积累，但我们也包括了与七个假设相关的其他金属的超积累的选定信息。此外，我们讨论了研究镍超富集时常用的实验技术，并认识到研究超富集的最新技术进展。我们还确定了目前应该优先考虑的研究空白，以帮助我们更好地理解金属超积累的进化意义。

引用次数: 0

Adaptive Significance of Nickel Hyperaccumulation by Plants 植物对镍超富集的适应意义

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-16 DOI: 10.1111/1440-1703.70053

Molly E. Waddington, Robert S. Boyd, Nishanta Rajakaruna

Nickel (Ni) hyperaccumulation in plants is an unusual attribute that imposes significant physiological costs. Persistence of Ni hyperaccumulation across a range of taxa suggests a significant evolutionary advantage to this trait. This review examines seven non-mutually exclusive hypotheses to explain the evolution of Ni hyperaccumulation in plants. The hypotheses include elemental defense, elemental allelopathy, drought tolerance, inadvertent uptake, enhanced reproductive fitness, incremental advantage, and metal tolerance and disposal. While our main focus is on Ni hyperaccumulation, we also include selected information about the hyperaccumulation of other metals where relevant to the seven hypotheses. Additionally, we discuss common experimental techniques used when studying Ni hyperaccumulation and recognize recent advances in technology available to study hyperaccumulation. We also identify current gaps in research that should be prioritized to help us better understand the evolutionary significance of metal hyperaccumulation.

镍（Ni）在植物中的过度积累是一种不寻常的特性，它会带来巨大的生理代价。镍超积累在一系列分类群中的持续存在表明这一特征具有显著的进化优势。本文综述了七个不相互排斥的假说来解释植物镍超积累的进化。这些假设包括元素防御、元素化感作用、耐旱性、无意摄取、增强生殖适应性、增量优势和金属耐受性和处置。虽然我们的主要重点是镍的超积累，但我们也包括了与七个假设相关的其他金属的超积累的选定信息。此外，我们讨论了研究镍超富集时常用的实验技术，并认识到研究超富集的最新技术进展。我们还确定了目前应该优先考虑的研究空白，以帮助我们更好地理解金属超积累的进化意义。

引用次数: 0

Elements of the Structure of Macrophyte Metacommunities in Coastal Wetlands: Relationships With Limnological and Climatic Variables 滨海湿地大型植物元群落结构要素：与湖泊和气候变量的关系

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-13 DOI: 10.1111/1440-1703.70052

Claudio Rossano Trindade Trindade, Maria Gabriela Junqueira, Fabiana Schneck

The Elements of Metacommunity Structure (EMS; coherence, turnover, and boundary clumping) framework allows the evaluation of species distribution patterns, including Clementsian patterns (discrete communities) and Gleasonian patterns (individualistic responses to environmental gradients). Quasi-structures can also occur, representing intermediate patterns when results do not fully fit a specific model, such as stochastic species loss (quasi-nested) or quasi-Clementsian and quasi-Gleasonian patterns. We applied the EMS to the total macrophyte metacommunity and to three functional groups (emergent, floating, and submerged) across 29 coastal wetlands in southern Brazil. We first hypothesized that the total metacommunity would show a Clementsian pattern driven by environmental heterogeneity and climate, with high turnover and well-defined community boundaries. Our second hypothesis was that emergent species would form Clementsian communities, whereas floating and submerged groups would follow Gleasonian patterns driven by limnological gradients. After applying the EMS, we used regression trees to assess environmental influences on the observed patterns. The total metacommunity exhibited a Clementsian pattern, with clustered turnover and discrete boundaries influenced by mean annual temperature and total phosphorus. Emergent species also showed a Clementsian pattern shaped by temperature. Floating species, influenced by total phosphorus and altitude, exhibited a quasi-nested, stochastic species loss structure, indicating a tendency toward nestedness without complete ordering. The submerged group, determined by temperature, exhibited a Gleasonian pattern with turnover and random distribution of species ranges. Our findings highlight the influence of environmental and climatic variables on macrophyte structure in wetlands, revealing distinct functional group responses and enhancing the understanding of species distribution in continental aquatic environments.

元群落结构要素（EMS）框架允许对物种分布模式进行评估，包括Clementsian模式（离散群落）和Gleasonian模式（对环境梯度的个体响应）。准结构也可以出现，当结果不完全适合特定模型时，代表中间模式，例如随机物种损失（准嵌套）或准clementsian和准gleasonian模式。我们将EMS应用于巴西南部29个沿海湿地的总大型植物元群落和3个功能群（涌现、漂浮和淹没）。我们首先假设总元群落在环境异质性和气候的驱动下呈现Clementsian模式，具有高周转率和明确的群落边界。我们的第二个假设是，新兴物种将形成克莱门特群落，而漂浮和淹没的群体将遵循由湖泊梯度驱动的格里森模式。在应用EMS之后，我们使用回归树来评估环境对观测模式的影响。总元群落受年平均温度和总磷的影响，表现为聚集性周转和离散边界的Clementsian模式。新兴物种也表现出受温度影响的克莱门特模式。浮游物种受总磷和海拔的影响，表现出一种准巢状的、随机的物种损失结构，表明有不完全有序的巢化趋势。淹水组由温度决定，表现为格里森模式，物种范围的更替和随机分布。我们的研究结果强调了环境和气候变量对湿地大型植物结构的影响，揭示了不同的功能群响应，增强了对大陆水生环境中物种分布的认识。

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引用次数: 0

Indirect Effects of Habitat Amount Mediated by Habitat Configuration Determine Bat Diversity in Peninsular Malaysia 生境数量对马来西亚半岛蝙蝠多样性的间接影响

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-09 DOI: 10.1111/1440-1703.70040

Quentin C. K. Hazard, Natalie Yoh, Jonathan Moore, Juliana Senawi, Luke Gibson, Jérémy S. P. Froidevaux, Ana Filipa Palmeirim

As habitat loss is the primary cause of habitat fragmentation, understanding the inter-related effects of these processes is key to minimize biodiversity loss. Despite this, only a few studies have considered such inter-relationships. To help fill this gap, we assessed how habitat amount and configuration influence insectivorous bat assemblages, considering both their direct effects, as well as the indirect effects of habitat amount mediated through configuration. Bats were acoustically surveyed along a range of habitat amount (forest cover) and configuration (number of patches and edge density) across 28 insular landscapes embedded within a Malaysian hydroelectric reservoir. Using Structural Equation Modeling, the direct and indirect effects of habitat amount were examined considering bat sonotype richness, total, and guild-specific activity (i.e., forest, edge and open-space foragers). The relationship between edge density and forest cover depended on the forest amount remaining in the landscape: below 30% of forest cover, forest cover had a positive effect on the edge density; and, above 30%, the opposite relationship was observed. Forest cover had a direct positive effect on sonotype richness and forest forager activity. Owing to the overall low habitat amount in our landscapes and negative effects of edge density, the indirect effects of forest cover, mediated through edge density, were therefore negative on sonotype richness. Our results highlight that any alteration of habitat amount influences habitat configuration, thereby preventing independent management of these threats. Minimizing habitat loss is therefore essential to balance the associated negative effects of fragmentation on insectivorous bats across tropical forests.

由于生境丧失是生境破碎化的主要原因，了解这些过程的相互影响是减少生物多样性丧失的关键。尽管如此，只有少数研究考虑了这种相互关系。为了帮助填补这一空白，我们评估了栖息地数量和配置如何影响食虫蝙蝠的组合，考虑了它们的直接影响，以及栖息地数量通过配置介导的间接影响。在马来西亚水电站内的28个岛屿景观中，对蝙蝠进行了一系列栖息地数量（森林覆盖率）和配置（斑块数量和边缘密度）的声学调查。利用结构方程模型（Structural Equation Modeling）分析了生境数量的直接和间接影响，考虑了蝙蝠的声型丰富度、总活动和行会特定活动（即森林、边缘和开放空间觅食者）。边缘密度与森林覆盖的关系取决于景观剩余森林量：在森林覆盖的30%以下，森林覆盖对边缘密度有正向影响；在30%以上，观察到相反的关系。森林覆盖对物种丰富度和森林觅食者活动有直接的正向影响。由于我国景观中总体生境数量较少，且边缘密度具有负向效应，因此森林覆盖通过边缘密度介导的间接效应对物种的声型丰富度具有负向效应。我们的研究结果强调，任何栖息地数量的变化都会影响栖息地的配置，从而阻碍对这些威胁的独立管理。因此，尽量减少栖息地的丧失对于平衡破碎化对热带森林中食虫蝙蝠的相关负面影响至关重要。

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引用次数: 0

Indirect Effects of Habitat Amount Mediated by Habitat Configuration Determine Bat Diversity in Peninsular Malaysia 生境数量对马来西亚半岛蝙蝠多样性的间接影响

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-09 DOI: 10.1111/1440-1703.70040

Quentin C. K. Hazard, Natalie Yoh, Jonathan Moore, Juliana Senawi, Luke Gibson, Jérémy S. P. Froidevaux, Ana Filipa Palmeirim

As habitat loss is the primary cause of habitat fragmentation, understanding the inter-related effects of these processes is key to minimize biodiversity loss. Despite this, only a few studies have considered such inter-relationships. To help fill this gap, we assessed how habitat amount and configuration influence insectivorous bat assemblages, considering both their direct effects, as well as the indirect effects of habitat amount mediated through configuration. Bats were acoustically surveyed along a range of habitat amount (forest cover) and configuration (number of patches and edge density) across 28 insular landscapes embedded within a Malaysian hydroelectric reservoir. Using Structural Equation Modeling, the direct and indirect effects of habitat amount were examined considering bat sonotype richness, total, and guild-specific activity (i.e., forest, edge and open-space foragers). The relationship between edge density and forest cover depended on the forest amount remaining in the landscape: below 30% of forest cover, forest cover had a positive effect on the edge density; and, above 30%, the opposite relationship was observed. Forest cover had a direct positive effect on sonotype richness and forest forager activity. Owing to the overall low habitat amount in our landscapes and negative effects of edge density, the indirect effects of forest cover, mediated through edge density, were therefore negative on sonotype richness. Our results highlight that any alteration of habitat amount influences habitat configuration, thereby preventing independent management of these threats. Minimizing habitat loss is therefore essential to balance the associated negative effects of fragmentation on insectivorous bats across tropical forests.

由于生境丧失是生境破碎化的主要原因，了解这些过程的相互影响是减少生物多样性丧失的关键。尽管如此，只有少数研究考虑了这种相互关系。为了帮助填补这一空白，我们评估了栖息地数量和配置如何影响食虫蝙蝠的组合，考虑了它们的直接影响，以及栖息地数量通过配置介导的间接影响。在马来西亚水电站内的28个岛屿景观中，对蝙蝠进行了一系列栖息地数量（森林覆盖率）和配置（斑块数量和边缘密度）的声学调查。利用结构方程模型（Structural Equation Modeling）分析了生境数量的直接和间接影响，考虑了蝙蝠的声型丰富度、总活动和行会特定活动（即森林、边缘和开放空间觅食者）。边缘密度与森林覆盖的关系取决于景观剩余森林量：在森林覆盖的30%以下，森林覆盖对边缘密度有正向影响；在30%以上，观察到相反的关系。森林覆盖对物种丰富度和森林觅食者活动有直接的正向影响。由于我国景观中总体生境数量较少，且边缘密度具有负向效应，因此森林覆盖通过边缘密度介导的间接效应对物种的声型丰富度具有负向效应。我们的研究结果强调，任何栖息地数量的变化都会影响栖息地的配置，从而阻碍对这些威胁的独立管理。因此，尽量减少栖息地的丧失对于平衡破碎化对热带森林中食虫蝙蝠的相关负面影响至关重要。

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引用次数: 0

Correction for Data Papers Published Between 2011 and 2016 对2011年至2016年发表的数据论文进行修正

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-04 DOI: 10.1111/1440-1703.70037

In the above articles, the URLs for their data sets in the JaLTER database are no longer valid due to a system migration issue. The data sets are now in MetaCat in JaLTER and the updated URLs for their data sets are as follow:

In connection with this, the URL to the Ecological Research Data Paper Archives (http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/) mentioned in the above articles is also invalid.

在上面的文章中，由于系统迁移问题，JaLTER数据库中它们的数据集的url不再有效。数据集目前在JaLTER的MetaCat中，更新后的数据集URL如下：因此，上述文章中提到的生态研究数据论文档案（http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/）的URL也无效。

引用次数: 0

Correction for Data Papers/Data Articles Published Between 2021 and 2024 更正2021年至2024年之间发表的数据论文/数据文章

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-04 DOI: 10.1111/1440-1703.70036

In the above articles, the URLs for their data sets in the JaLTER database are no longer valid due to a system migration issue. The data sets are now in MetaCat in JaLTER and the updated URLs for their data sets are as follow:

在上面的文章中，由于系统迁移问题，JaLTER数据库中它们的数据集的url不再有效。数据集现在在JaLTER的MetaCat中，其数据集的更新url如下：

引用次数: 0

Correction for Data Papers Published Between 2017 and 2019 对2017年至2019年发表的数据论文进行更正

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research

Pub Date : 2026-02-04 DOI: 10.1111/1440-1703.70039

In the above articles, the URLs for their data sets in the JaLTER database are no longer valid due to a system migration issue. The data sets are now in MetaCat in JaLTER and the updated URLs for their data sets are as follow:

In connection with this, the URL to the Ecological Research Data Paper Archives (http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/) mentioned in the above articles is also invalid.

在上面的文章中，由于系统迁移问题，JaLTER数据库中它们的数据集的url不再有效。数据集目前在JaLTER的MetaCat中，更新后的数据集URL如下：因此，上述文章中提到的生态研究数据论文档案（http://db.cger.nies.go.jp/JaLTER/ER_DataPapers/）的URL也无效。

引用次数: 0