IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-06-18 DOI: 10.1016/j.fooweb.2025.e00410

Eduarda Silva de Lima , Iluany da Silva Costa , Thaís Santos Souza , Emilly Vieira Drosdosky , Matheus Fernandes-Freitas , Karina Dias-Silva

{"title":"Predatory behavior of the hellgrammite larva Corydalus batesii (McLachlan, 1868) (Insecta: Megaloptera: Corydalidae) in an Amazonian stream","authors":"Eduarda Silva de Lima , Iluany da Silva Costa , Thaís Santos Souza , Emilly Vieira Drosdosky , Matheus Fernandes-Freitas , Karina Dias-Silva","doi":"10.1016/j.fooweb.2025.e00410","DOIUrl":"10.1016/j.fooweb.2025.e00410","url":null,"abstract":"<div><div>Prey selection by aquatic predators is influenced by active choice, prey vulnerability and encounter rate. Megaloptera is an order of predatory aquatic insects whose larvae feed exclusively on live prey. Their larvae are found in Amazonian streams, but their biology, distribution and diet have been little studied. Here, an event of Tipulidae predation by <em>Corydalus batesii</em> (McLachlan, 1868) was recorded in a conserved stream in Medicilândia, Pará. This species had not been recorded in the state for 26 years, and this is the first time that the feeding of this larva has been evaluated. The study adds gaps in the behavior and distribution of this species, adding to knowledge about trophic interactions in Amazonian streams and also reinforcing the importance of conserving these ecosystems. The urgency for habitat conservation is highlighted by the fact that the stream evaluated was deforested and impacted weeks after collection.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"44 ","pages":"Article e00410"},"PeriodicalIF":1.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322386","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

Drinking to the last drop! Record of honeydew consumption by a ghost spider (Araneae: Anyphaenidae) in an urban environment in southeastern Brazil 喝到最后一滴！巴西东南部城市环境中一只鬼蛛（蜘蛛目：鬼蛛科）吸食蜜露的记录

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-06-18 DOI: 10.1016/j.fooweb.2025.e00406

Glauco C.S. Oliveira , Guilherme R. Demetrio , Gabriel C. Jacques , Igor H. Silva , Marcos M. Souza , Antonio D. Brescovit

引用次数: 0

Spatio-temporal distribution, diet and human conflict of snow leopard (Panthera uncia) in the Khunjerab National Park, Gilgit Baltistan 吉尔吉特-巴尔蒂斯坦红其拉甫国家公园雪豹的时空分布、饮食与人类冲突

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-06-01 DOI: 10.1016/j.fooweb.2025.e00402

Saira Akber , Tariq Mahmood , Tahir Mehmood , Amjad Rashid Kayani , Muhammad Sajid Nadeem , Faraz Akrim

{"title":"Spatio-temporal distribution, diet and human conflict of snow leopard (Panthera uncia) in the Khunjerab National Park, Gilgit Baltistan","authors":"Saira Akber , Tariq Mahmood , Tahir Mehmood , Amjad Rashid Kayani , Muhammad Sajid Nadeem , Faraz Akrim","doi":"10.1016/j.fooweb.2025.e00402","DOIUrl":"10.1016/j.fooweb.2025.e00402","url":null,"abstract":"<div><div>Apex predators play a critical role in ecosystem dynamics, exerting top-down control over prey populations and influencing biodiversity. The current study focused on the distribution, diet menu and human conflict of Snow leopard <em>(Panthera uncia</em>), one of the apex predators in the Khunjerab National Park (KNP), Gilgit-Baltistan. We used camera trapping as well as field survey techniques for determining the distribution of the species in the study area. The diet of snow leopard was investigated through scat analysis while human conflict was investigated through self-designed questionnaires. Results showed that snow leopards are distributed in different areas of the park at various elevations ranging between 3075 m(lowest) and 6293 m (highest). The camera traps captured a total of 20 capture “events or encounters” of snow leopard, among overall 550 photographs taken at various sites. Analysis of these capture data revealed that the activity pattern of snow leopard was bimodal, and it showed peak activity during dawn and dusk times. Scat analysis revealed that snow leopards take 72 % of their diet from wild prey, of which Himalayan Ibex makes up a large portion, and the remaining 28 % from the domestic prey, of which Yak is consumed at a high rate. Questionnaire data analysis revealed that depredation by snow leopard on livestock mostly occurs in the valley locations (88.5 %), with grazing areas accounting for 11.4 % of the total. The attacks occur mostly at night, and in the months of May and June, respectively, In the KNP, apex predators attack yaks by 82.2 %; while depredation rates for sheep, goats, and cows were 8.3 %, 6.25 %, and 3.12 %, respectively. The study concludes that depredation on livestock is the main cause of conflict between humans and the snow leopard in the study area, and it is the biggest challenge for conservationists.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"43 ","pages":"Article e00402"},"PeriodicalIF":1.8,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184916","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

American shorebird-prey network patterns: Geographic variation in non-breeding habitats 美国滨鸟捕食网络模式：非繁殖栖息地的地理变异

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-04-30 DOI: 10.1016/j.fooweb.2025.e00401

Jenny A. Angarita-Báez, Henrique C. Delfino, Caio J. Carlos

{"title":"American shorebird-prey network patterns: Geographic variation in non-breeding habitats","authors":"Jenny A. Angarita-Báez, Henrique C. Delfino, Caio J. Carlos","doi":"10.1016/j.fooweb.2025.e00401","DOIUrl":"10.1016/j.fooweb.2025.e00401","url":null,"abstract":"<div><div>Understanding trophic ecology is essential for elucidating species' life histories and the ecological interactions that sustain them. For migratory shorebirds, which are opportunistic feeders, survival across vast migratory routes depends on the availability of critical stopover sites, where local environmental conditions shape food resources. In this study, we applied a network-based approach to examine shorebird-prey interactions across the Americas, constructing an interaction matrix from a systematic literature review spanning publications from 1929 to the present. Our analysis, encompassing the diets of 36 migratory shorebird species across distinct biogeographic realms, revealed that shorebird-prey networks exhibit low nestedness, low connectance, and moderate modularity. These structural patterns suggest a balance between vulnerability to prey decline and potential resilience through reduced competition and disease transmission. Network structure varied more in tropical regions than in temperate zones. Contrary to our hypothesis, prey richness did not correlate with increased morphological specialization among shorebirds. This suggests that factors beyond morphology, such as behavioral plasticity or interspecific competition, may play a greater role in shaping foraging strategies. This research provides the first comprehensive analysis of structural patterns in antagonistic shorebird-prey networks across the Americas. While the observed modularity suggests some resilience during migration, climate change and anthropogenic pressures pose significant threats. Continued research into shorebird diets is imperative for informing conservation and management strategies at key stopover sites.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"43 ","pages":"Article e00401"},"PeriodicalIF":1.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143907493","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

A global citizen science effort via iNaturalist reveals food webs of large predatory rove beetles 一项由iNaturalist发起的全球公民科学努力揭示了大型掠食性漫游者甲虫的食物网

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-04-19 DOI: 10.1016/j.fooweb.2025.e00399

Fang-Shuo Hu , Yun Hsiao , Alexey Solodovnikov

{"title":"A global citizen science effort via iNaturalist reveals food webs of large predatory rove beetles","authors":"Fang-Shuo Hu , Yun Hsiao , Alexey Solodovnikov","doi":"10.1016/j.fooweb.2025.e00399","DOIUrl":"10.1016/j.fooweb.2025.e00399","url":null,"abstract":"<div><div>The behavior of organisms is very difficult to observe and document, especially direct interactions such as predation. As a result, there are few systematic studies of such phenomena on a large scale and the food webs of organisms that are formed by fleeting and opportunistic interactions are largely unknown. Understanding food webs is essential for addressing the Eltonian shortfall in biodiversity knowledge and revealing ecosystem dynamics. The rise of citizen science in recent years offers unique opportunities to study food webs on a global scale, which has been demonstrated for larger animals but not for small ones like insects. Here we explore the potential of iNaturalist as a cost-effective citizen science platform to obtain data about the prey choices of predatory rove beetles (family Staphylinidae) from the subtribe Staphylinina, as an alternative to traditional, labor-intense laboratory studies. We manually mined the dietary evidence of Staphylinina worldwide through over 48,000 observations on iNaturalist and 159 records of predation were found. Our findings show that citizen science data not only supports the published studies, but also provides direct and novel field-based evidence of rove beetle prey specialization with numbers of observations that exceed the amount of previously available data by an order of magnitude. We confirmed that some Staphylinina are generalist predators and discovered that some genera and species exhibit specific prey preferences, as documented by iNaturalist. This approach demonstrates that citizen science platforms offer an innovative, scalable, and cost-effective solution to filling global biodiversity knowledge gaps.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"43 ","pages":"Article e00399"},"PeriodicalIF":1.8,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869528","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

Insights into prey handling and feeding strategies by ghost crabs on sea turtle eggs and hatchlings 鬼蟹对海龟卵和幼崽的捕食和喂养策略的见解

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-04-16 DOI: 10.1016/j.fooweb.2025.e00400

Casper Avenant

引用次数: 0

Intraguild predation by a biocontrol predator is reduced at lower temperatures 在较低温度下，一种生物控制捕食者对动物群内的捕食会减少

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-04-03 DOI: 10.1016/j.fooweb.2025.e00397

Arina Martin , Stella F. Uiterwaal

{"title":"Intraguild predation by a biocontrol predator is reduced at lower temperatures","authors":"Arina Martin , Stella F. Uiterwaal","doi":"10.1016/j.fooweb.2025.e00397","DOIUrl":"10.1016/j.fooweb.2025.e00397","url":null,"abstract":"<div><div>Generalist predators play important roles in ecosystems by consuming various prey types. Despite this, predation studies often focus on a predator's most consumed prey, with limited attention given to predation on less common prey. In addition, despite increased temperature variability under climate change, it is unclear how predator foraging is affected by colder temperatures. Here, we examine the functional response of the generalist wolf spider <em>Hogna baltimoriana</em> on <em>Hippodamia convergens</em> ladybeetle larvae at an ambient and two colder temperatures. In agroecosystems, both wolf spiders and ladybeetles can act as biocontrol predators of pest species and may engage in intraguild predation, yet ladybeetles appear to be uncommon in wild wolf spiders' diets. We provide evidence of intraguild predation by <em>H. baltimoriana</em> on <em>H. convergens</em> across cold temperatures but find that the likelihood of this spider foraging on <em>H. convergens</em> larvae is reduced at lower temperatures and with a lower larva density. We further show that colder temperatures reduce space clearance rate, resulting in decreased foraging rates at low prey densities. Our results have important implications for biocontrol programs and our understanding of predator-prey interactions under climate change, and we highlight the need for functional responses to be evaluated on less commonly consumed prey.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"43 ","pages":"Article e00397"},"PeriodicalIF":1.8,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791978","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

Feeding behaviour of a large lizard drives the outcome of palm seeds dispersal, with comments on its ecosystem services 大型蜥蜴的摄食行为驱动了棕榈种子传播的结果，并对其生态系统服务进行了评论

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-03-25 DOI: 10.1016/j.fooweb.2025.e00398

Ivan Sazima , Marlies Sazima

{"title":"Feeding behaviour of a large lizard drives the outcome of palm seeds dispersal, with comments on its ecosystem services","authors":"Ivan Sazima , Marlies Sazima","doi":"10.1016/j.fooweb.2025.e00398","DOIUrl":"10.1016/j.fooweb.2025.e00398","url":null,"abstract":"<div><div>Frugivory and seed dispersal is recorded for 470 lizard species in 27 families worldwide, including the Neotropical Teiidae with 16 genera and 35 species. Among teiids, the black and white tegu <em>Salvator merianae</em> stands out as the largest fruit-eating species. Herein we describe and illustrate the feeding behaviour of this lizard on fruits of the queen palm <em>Syagrus romanzoffiana</em> at an urban reserve in southeast Brazil in November 2013. The lizard picks up the fruits under the palm and remains there while feeding. Part of the fruits is swallowed whole after little chewing, whereas part is thoroughly chewed, the pulp swallowed and the hard seed discarded. Thus, the seeds discarded under the mother plant are not dispersed and probably have little chance to germinate, whereas those swallowed are eliminated with faeces and dispersed away from the mother plant have better chances to germinate. This dual behaviour seems a novelty among palm fruit-eating lizards and is unrecorded for Teiidae. We also report on some animal food types gathered or hunted by the tegu and comment on the ecological roles and regulating ecosystem services this large lizard delivers at the study site, including plant dispersal, carrion removal, and pest control. Additionally, the tegu digs burrows to brumate in the cold and dry season, acting as ecosystem engineer.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"43 ","pages":"Article e00398"},"PeriodicalIF":1.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716220","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

Predation of Bibimys labiosus (Rodentia: Cricetidae) by Hoplias intermedius (Characiformes: Erythrinidae) in Cerrado with a review of Sigmodontinae predation by fishes 塞拉多省唇虱（啮齿目：蟋蟀科）对唇虱（特征：赤虱科）的捕食——鱼对唇虱科捕食研究综述

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-03-22 DOI: 10.1016/j.fooweb.2025.e00396

Maxwell Douglas Crispim Borges , Juliano Alfenas Silva Valente Paes , Felipe Tinti Rodrigues dos Santos , Patrícia Giongo , Wagner Martins Santana Sampaio , Hugo Castro de Souza Raya Sanches , Frederico Belei de Almeida

{"title":"Predation of Bibimys labiosus (Rodentia: Cricetidae) by Hoplias intermedius (Characiformes: Erythrinidae) in Cerrado with a review of Sigmodontinae predation by fishes","authors":"Maxwell Douglas Crispim Borges , Juliano Alfenas Silva Valente Paes , Felipe Tinti Rodrigues dos Santos , Patrícia Giongo , Wagner Martins Santana Sampaio , Hugo Castro de Souza Raya Sanches , Frederico Belei de Almeida","doi":"10.1016/j.fooweb.2025.e00396","DOIUrl":"10.1016/j.fooweb.2025.e00396","url":null,"abstract":"<div><div>Rodents are part of the diet of a numerous species of vertebrates and some invertebrates. However, many predator-prey relationships remain unknown. This study aims to record the first predation case of a <em>Bibimys labiosus</em> by a <em>Hoplias intermedius</em>. This is an unusual event that involves a cricetid historically associated with the Atlantic Forest, with still poorly known ecology, and a predominantly piscivorous fish in Cerrado. We also review records of Sigmodontinae predation by fish and localities of <em>B. labiosus</em> in South America. The new record of <em>B. labiosus</em> in Cerrado, near a highly impacted region, shows that the rodent might be able to tolerate disturbed environments and the species can be found in adjacent Atlantic Forest areas. Also, fish predation on Sigmodontinae is considered opportunistic and has not been well documented, with only eight records in the literature, with the majority of records in the last 20 years in the southern cone of South America. This interaction between a semifossorial sigmodontine rodent and a piscivorous fish is the first in the literature and helps us better understand the Cerrado food webs and the natural history of Neotropical species.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"43 ","pages":"Article e00396"},"PeriodicalIF":1.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705419","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

Diet of the Arabian collared kingfisher (Todiramphus chloris kalbaensis): Insights from trail cameras and regurgitation pellets 阿拉伯领翠鸟（Todiramphus chloris kalbaensis）的饮食：从跟踪相机和反流颗粒的见解

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-03-01 DOI: 10.1016/j.fooweb.2025.e00391

Fadi Yaghmour , Brendan Whittington-Jones , Halima Al Naqbi

{"title":"Diet of the Arabian collared kingfisher (Todiramphus chloris kalbaensis): Insights from trail cameras and regurgitation pellets","authors":"Fadi Yaghmour , Brendan Whittington-Jones , Halima Al Naqbi","doi":"10.1016/j.fooweb.2025.e00391","DOIUrl":"10.1016/j.fooweb.2025.e00391","url":null,"abstract":"<div><div>The Arabian Collared Kingfisher (<em>Todiramphus chloris kalbaensis</em>) is an endemic subspecies inhabiting the Alqurm mangrove system on the eastern coast of Sharjah, UAE. Unpublished annual census data collected over most of the past decade suggest that the known population of this subspecies does not exceed 180 individuals (Whittington-Jones, personal communication, May 14, 2024). Despite this kingfisher's conspicuous behavior and ecological significance, there is a dearth of scientific literature on its ecology. Here we examine the diet of the Arabian Collared Kingfisher through analysis of trail camera images and regurgitation pellets. Brachyuran crabs were the primary prey item ingested, followed by fish, arthropods, and shrimps. Discrepancies between prey documented by trail cameras and regurgitation pellets suggest method limitations. Analysis of regurgitation pellets allows for detailed taxonomic identification but favors hard-bodied animals such as crabs, while missing soft-bodied prey due to their passage through the digestive tract. Trail cameras offer periodic visual data but limited image resolution, hampering classification. Our findings underscore the imperative of conserving the ecological integrity of the Alqurm mangrove system for the continued survival of the Arabian Collared Kingfisher.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"42 ","pages":"Article e00391"},"PeriodicalIF":1.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534407","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

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