Food Webs最新文献

Insights into prey handling and feeding strategies by ghost crabs on sea turtle eggs and hatchlings

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

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

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

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

Between mosquitoes and stoneflies: Observation of Plecoptera nymphs preying on chironomid larvae (Diptera)

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.e00389

T. Ramos , E.S. De Lima , K. Dias-Silva , L. Juen

{"title":"Between mosquitoes and stoneflies: Observation of Plecoptera nymphs preying on chironomid larvae (Diptera)","authors":"T. Ramos , E.S. De Lima , K. Dias-Silva , L. Juen","doi":"10.1016/j.fooweb.2025.e00389","DOIUrl":"10.1016/j.fooweb.2025.e00389","url":null,"abstract":"<div><div>Plecoptera is an order of aquatic insects, the immature stage of which inhabits preserved, fast-flowing, well oxygenated streams and is a predator that feeds on many aquatic groups. Prey preference is determined by the active choice of the predator or by the vulnerability of the prey and the balance of energy spent searching for and manipulating the prey. Analysis and observation of predator-prey events provide a greater understanding of the mechanisms governing this interaction. The stream in which predation was observed is located in the forest region of the Cajari River RESEX (Amapá, Brazil). The specimens were collected using a rapiché (D-net) in September 2023. The event observed was the predation of a Chironomidae larva by a nymph of Macrogynoplax Enderlein (Perlidae, Plecoptera), in a preserved stream. The action of these predators contributes to controlling the abundance of Chironomidae larvae. This observation proves the quality of the ecosystem and its effectiveness in maintaining sensitive individuals, such as Plecoptera, as well as tolerant ones, such as the majority of Chironomidae, to the point of allowing their usual behavioral patterns to unfold.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"42 ","pages":"Article e00389"},"PeriodicalIF":1.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520752","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

Phoresy and interactions between Scotocryptus beetles and stingless bees

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-02-20 DOI: 10.1016/j.fooweb.2025.e00390

Luíza Eduarda Basílio Silva , Cristiano Lopes-Andrade , Lucio Antonio Oliveira Campos , Rodrigo Cupertino Bernardes , Lívia Maria Negrini Ferreira , Maria Augusta Pereira Lima

{"title":"Phoresy and interactions between Scotocryptus beetles and stingless bees","authors":"Luíza Eduarda Basílio Silva , Cristiano Lopes-Andrade , Lucio Antonio Oliveira Campos , Rodrigo Cupertino Bernardes , Lívia Maria Negrini Ferreira , Maria Augusta Pereira Lima","doi":"10.1016/j.fooweb.2025.e00390","DOIUrl":"10.1016/j.fooweb.2025.e00390","url":null,"abstract":"<div><div>Phoresy is an interaction between two organisms in which one species (the phoront) is transported by a host as a widespread means of dispersal or migration. For some arthropods, the costs and benefits of this process for hosts and phoronts remain unclear. <em>Scotocryptus</em> beetles are blind and flightless, relying on stingless bees for dispersal via phoresy. Here, we studied the phoretic behavior of <em>Scotocryptus melitophilus</em> on two stingless bee species: <em>Melipona</em> (<em>Melipona</em>) <em>quadrifasciata anthidioides</em> and <em>Melipona</em> (<em>Michmelia</em>) <em>mondury</em>. We investigated the longevity and climbing behavior of beetles in experimental arenas with bees of different species and ages (foragers and non-foragers). The sex ratio of beetles randomly sampled from bee colonies was 1:1, and beetles of both sexes climbed onto bees. Beetles survived for at least 15 days in the presence of bees in experimental arenas. The bees did not repel beetles in the arenas, even when the beetles climbed onto them. Beetles climbed onto bees more frequently in <em>M. mondury</em> than in <em>M. quadrifasciata</em> and more often on foragers than on non-foragers. Climbing behavior was concentrated on the bees' legs, particularly the corbicula. We cannot confirm whether the relationship between <em>Scotocryptus</em> beetles and stingless bees is mutualistic. However, the observed beetle behavior suggests that the evolution of phoresy was a crucial step in the development of symbiosis between these two arthropod groups.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"42 ","pages":"Article e00390"},"PeriodicalIF":1.8,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465084","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 Gripopteryx sp. (Plecoptera: Gripopterygidae) by Argia claussenii Selys, 1865 (Odonata: Coenagrionidae) in Campo Rupestre, Minas Gerais

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-02-17 DOI: 10.1016/j.fooweb.2025.e00387

Tomás Matheus Dias-Oliveira , Diogo Silva Vilela , Luiz Eduardo de Carvalho Chaves Júnior , Gabriel de Castro Jacques , Marcos Magalhães de Souza

引用次数: 0

Hygrophilous springtails (Arthropoda: Collembola) with different diets are a potential source of eicosapentaenoic fatty acid for terrestrial consumers

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-02-08 DOI: 10.1016/j.fooweb.2025.e00388

Natalia Kuznetsova , Olesia Makhutova , Mikhail Potapov , Mikhail Gladyshev

{"title":"Hygrophilous springtails (Arthropoda: Collembola) with different diets are a potential source of eicosapentaenoic fatty acid for terrestrial consumers","authors":"Natalia Kuznetsova , Olesia Makhutova , Mikhail Potapov , Mikhail Gladyshev","doi":"10.1016/j.fooweb.2025.e00388","DOIUrl":"10.1016/j.fooweb.2025.e00388","url":null,"abstract":"<div><div>Springtails are tiny and inconspicuous, but numerous and diverse arthropods that play a significant role in soil food webs. They inhabit various ecosystems — moist forest floors, freshwater or sea shores, and water surface — and, as a result, have various diets. We hypothesized that habitats affect fatty acid (FA) compositions of springtails: species living near aquatic ecosystems will contain higher levels of physiologically valuable long-chain polyunsaturated fatty acids (LC-PUFAs) of the n-3 family, which are primarily synthesized by aquatic organisms. We studied density and biomass, and FA composition and content of springtails living near water bodies (<em>Halisotoma boneti, Isotomurus palustris, Scutisotoma muriphila</em>) and two species of the genus <em>Pogonognathellus</em> living in the dry bed of a forest stream. According to FA trophic markers the species had different diets that might affect the content of LC-PUFAs. The content of eicosapentaenoic acid (EPA, 20:5n-3) was high in all studied species and varied from 2.2 mg·g<sup>−1</sup> of ww in <em>Pogonognathellus</em> spp. from a forest to 3.7 mg·g<sup>−1</sup> of ww in <em>I. palustris</em> from a lake shore. The percentage of EPA was 13.1–17.3 % of the total FAs. That is unusual for terrestrial organisms and is comparable to larvae of amphibiotic insects. EPA content in clusters of hygrophilous springtails reached 16.4–44.9 mg·m<sup>−2</sup>. Hygrophilous springtails could be a valuable source of EPA for terrestrial consumers. Additionally, we found the effect of the phylogenetic factor on FA profiles: <em>H. boneti</em> from different habitat had similar FA profiles, while representatives of Isotomidae family differed from representatives of Tomoceridae family in FA profiles.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"42 ","pages":"Article e00388"},"PeriodicalIF":1.8,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143387669","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

Daily estuary tides orchestrate clients seeking service from facultative cleaners

IF 1.8 4区环境科学与生态学

Food Webs Pub Date : 2025-01-04 DOI: 10.1016/j.fooweb.2025.e00386

Brendan C. Ebner

{"title":"Daily estuary tides orchestrate clients seeking service from facultative cleaners","authors":"Brendan C. Ebner","doi":"10.1016/j.fooweb.2025.e00386","DOIUrl":"10.1016/j.fooweb.2025.e00386","url":null,"abstract":"<div><div>Mutualism essentially encompasses the ecological and evolutionary aspects of net cooperative gain for multiple taxa and genes. Despite many aquatic assemblages and communities being investigated for trophic and competitive interactions; mutualism is not always as closely scrutinised. Notable exceptions are provided by studies of cleaner fish and invertebrate cleaning behaviour in clear-water, tropical coral reef ecosystems and nearshore subtropical marine contexts. Recently, estuarine fish cleaning of parasites has been reported from detailed above-water observations made in eastern Australia and the current study provides additional records of subtropical estuarine fish cleaning relationships based on underwater observation. Specifically, the ubiquitous subtropical estuarine fish, yellowfin bream, <em>Acanthopagrus australis</em> (Sparidae) was observed regularly presenting for parasite cleaning by the common stripey, <em>Microcanthus joyceae</em> (Microcanthidae) in the lower Maroochy River (Queensland, Australia), most notably around morning high tides. Additionally, <em>M. joyceae</em> was occasionally observed cleaning Moses Perch, <em>Lutjanus russelli</em> (Lutjanidae) and Racoon Butterfly fish, <em>Chaetodon lunula</em> (Chaetodontidae) and pomacentrids (<em>Abudefduf vaigiensis</em> and <em>A. bengalensis</em>) were infrequently cleaning juvenile yellowfin bream. These interactions provide examples of small-bodied fishes with comparable body demarcation (black and yellow bands or stripes) to that of a previously identified fish cleaner (juvenile silver batfish, <em>Monodactylus argenteus</em> (Monodactylidae)) in estuaries, typically servicing clients larger in body size than the cleaners. Interestingly, juveniles of <em>M. argenteus</em> were present but not seen performing cleaning behaviour in the current study. Facultative cleaning species warrant further attention with water clarity and benthic structure representing promising factors to consider in planning future work.</div></div>","PeriodicalId":38084,"journal":{"name":"Food Webs","volume":"42 ","pages":"Article e00386"},"PeriodicalIF":1.8,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138406","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