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Lado P, Rogers DC, Cernicchiaro N, Swistek S, Van Nest K, Shults P, Ewing RD, Okeson D, Brabec D, Cohnstaedt LW. Assessment of the USDA Biomass Harvest Trap (USDA-BHT) device as an insect harvest and mosquito surveillance tool. JOURNAL OF ECONOMIC ENTOMOLOGY 2024:toae095. [PMID: 38970358 DOI: 10.1093/jee/toae095] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/21/2024] [Accepted: 04/22/2024] [Indexed: 07/08/2024]
Abstract
Insects are a promising source of high-quality protein, and the insect farming industry will lead to higher sustainability when it overcomes scaling up, cost effectiveness, and automation. In contrast to insect farming (raising and breeding insects as livestock), wild insect harvesting (collecting agricultural insect pests), may constitute a simple sustainable animal protein supplementation strategy. For wild harvest to be successful sufficient insect biomass needs to be collected while simultaneously avoiding the collection of nontarget insects. We assessed the performance of the USDA Biomass Harvest Trap (USDA-BHT) device to collect flying insect biomass and as a mosquito surveillance tool. The USDA-BHT device was compared to other suction traps commonly used for mosquito surveillance (Centers for Disease Control and Prevention (CDC) light traps, Encephalitis virus surveillance traps, and Biogents Sentinel traps). The insect biomass harvested in the USDA-BHT was statistically higher than the one harvested in the other traps, however the mosquito collections between traps were not statistically significantly different. The USDA-BHT collected some beneficial insects, although it was observed that their collection was minimized at night. These findings coupled with the fact that sorting time to separate the mosquitoes from the other collected insects was significantly longer for the USDA-BHT, indicate that the use of this device for insect biomass collection conflicts with its use as an efficient mosquito surveillance tool. Nevertheless, the device efficiently collected insect biomass, and thus can be used to generate an alternative protein source for animal feed.
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Affiliation(s)
- Paula Lado
- National Bio and Agro-Defense Facility, USDA Agricultural Research Service (ARS), P.O. Box 1807, Manhattan, KS 66505, USA
| | - D Christopher Rogers
- Kansas Biological Survey, and The Biodiversity Institute, University of Kansas, Lawrence, KS 66047, USA
| | - Natalia Cernicchiaro
- College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Sabrina Swistek
- College of Veterinary Medicine, Mississippi State University, Mississippi State, MS 39762, USA
| | - Kortnee Van Nest
- National Bio and Agro-Defense Facility, USDA Agricultural Research Service (ARS), P.O. Box 1807, Manhattan, KS 66505, USA
- College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Phillip Shults
- Center for Grain and Animal Health Research, USDA Agricultural Research Service (ARS), 1515 College Ave., Manhattan, KS 66502, USA
| | - Robert D Ewing
- National Bio and Agro-Defense Facility, USDA Agricultural Research Service (ARS), P.O. Box 1807, Manhattan, KS 66505, USA
| | - Danelle Okeson
- Rolling Hills Zoo, 625 N Hedville Road, Salina, KS 67401, USA
| | - Daniel Brabec
- Center for Grain and Animal Health Research, USDA Agricultural Research Service (ARS), 1515 College Ave., Manhattan, KS 66502, USA
| | - Lee W Cohnstaedt
- National Bio and Agro-Defense Facility, USDA Agricultural Research Service (ARS), P.O. Box 1807, Manhattan, KS 66505, USA
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Harman RR, Kim TN. Differentiating spillover: an examination of cross-habitat movement in ecology spillover in ecology. Proc Biol Sci 2024; 291:20232707. [PMID: 38351801 PMCID: PMC10865012 DOI: 10.1098/rspb.2023.2707] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/11/2024] [Indexed: 02/16/2024] Open
Abstract
Organisms that immigrate into a recipient habitat generate a movement pattern that affects local population dynamics and the environment. Spillover is the pattern of unidirectional movement from a donor habitat to a different, adjacent recipient habitat. However, ecological definitions are often generalized to include any cross-habitat movement, which limits within- and cross-discipline collaboration. To assess spillover nomenclature, we reviewed 337 studies within the agriculture, disease, fisheries and habitat fragmentation disciplines. Each study's definition of spillover and the methods used were analysed. We identified four descriptors (movement, habitat type and arrangement, and effect) used that differentiate spillover from other cross-habitat movement patterns (dispersal, foray loops and edge movement). Studies often define spillover as movement (45%) but rarely measure it as such (4%), particularly in disease and habitat fragmentation disciplines. Consequently, 98% of studies could not distinguish linear from returning movement out of a donor habitat, which can overestimate movement distance. Overall, few studies (12%) included methods that matched their own definition, revealing a distinct mismatch. Because theory shows that long-term impacts of the different movement patterns can vary, differentiating spillover from other movement patterns is necessary for effective long-term and inter-disciplinary management of organisms that use heterogeneous landscapes.
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Affiliation(s)
- Rachel R. Harman
- Department of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506, USA
| | - Tania N. Kim
- Department of Entomology, Kansas State University, 123 W. Waters Hall, Manhattan, KS 66506, USA
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Boetzl FA, Sponsler D, Albrecht M, Batáry P, Birkhofer K, Knapp M, Krauss J, Maas B, Martin EA, Sirami C, Sutter L, Bertrand C, Baillod AB, Bota G, Bretagnolle V, Brotons L, Frank T, Fusser M, Giralt D, González E, Hof AR, Luka H, Marrec R, Nash MA, Ng K, Plantegenest M, Poulin B, Siriwardena GM, Tscharntke T, Tschumi M, Vialatte A, Van Vooren L, Zubair-Anjum M, Entling MH, Steffan-Dewenter I, Schirmel J. Distance functions of carabids in crop fields depend on functional traits, crop type and adjacent habitat: a synthesis. Proc Biol Sci 2024; 291:20232383. [PMID: 38196355 PMCID: PMC10777163 DOI: 10.1098/rspb.2023.2383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/01/2023] [Indexed: 01/11/2024] Open
Abstract
Natural pest and weed regulation are essential for agricultural production, but the spatial distribution of natural enemies within crop fields and its drivers are mostly unknown. Using 28 datasets comprising 1204 study sites across eight Western and Central European countries, we performed a quantitative synthesis of carabid richness, activity densities and functional traits in relation to field edges (i.e. distance functions). We show that distance functions of carabids strongly depend on carabid functional traits, crop type and, to a lesser extent, adjacent non-crop habitats. Richness of both carnivores and granivores, and activity densities of small and granivorous species decreased towards field interiors, whereas the densities of large species increased. We found strong distance decays in maize and vegetables whereas richness and densities remained more stable in cereals, oilseed crops and legumes. We conclude that carabid assemblages in agricultural landscapes are driven by the complex interplay of crop types, adjacent non-crop habitats and further landscape parameters with great potential for targeted agroecological management. In particular, our synthesis indicates that a higher edge-interior ratio can counter the distance decay of carabid richness per field and thus likely benefits natural pest and weed regulation, hence contributing to agricultural sustainability.
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Affiliation(s)
- Fabian A. Boetzl
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala SE-750 07, Sweden
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg 97074 Germany
| | - Douglas Sponsler
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg 97074 Germany
| | - Matthias Albrecht
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, Zurich 8046, Switzerland
| | - Péter Batáry
- ‘Lendület’ Landscape and Conservation Ecology, Institute of Ecology and Botany, HUN-REN Centre for Ecological Research, 2163 Vácrátót, Alkotmány út 2-4, Hungary
| | - Klaus Birkhofer
- Department of Ecology, Brandenburg University of Technology Cottbus-Senftenberg, Cottbus 03046, Germany
| | - Michal Knapp
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol 165 00, Czech Republic
| | - Jochen Krauss
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg 97074 Germany
| | - Bea Maas
- Department of Botany and Biodiversity Research, Division of Biodiversity Dynamics and Conservation, University of Vienna, Rennweg 14, 1030 Vienna, Austria
| | - Emily A. Martin
- Department of Animal Ecology, Justus Liebig University Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany
| | - Clélia Sirami
- UMR Dynafor, INRAE, Toulouse University, 31326 Castanet Tolosan, France
- LTSER Zone Atelier « PYRÉNÉES GARONNE », 31320 Auzeville-Tolosane, France
| | - Louis Sutter
- Plant-Production Systems, Agroscope, Route des Eterpys 18, 1964 Conthey, Switzerland
| | - Colette Bertrand
- Université Paris-Saclay, INRAE, AgroParisTech, UMR EcoSys, 91120 Palaiseau, France
- INRAE, Institut Agro, ESA, UMR BAGAP, 35042 Rennes, France
| | - Aliette Bosem Baillod
- Research Institute of Organic Agriculture (FiBL), Ackerstrasse 113, Postfach, Frick 5070, Switzerland
| | - Gerard Bota
- Landscape Dynamics and Biodiversity Program, Forest Science and Technology Centre of Catalonia (CTFC), Crtra. Sant Llorenç de Morunys, km 2, 25280 Solsona, Spain
| | - Vincent Bretagnolle
- CEBC, UMR 7372, CNRS & La Rochelle Université, 79360 Villiers-en-Bois, France
- LTSER ‘Zone Atelier Plaine & Val de Sèvre’, CNRS, 79360 Villiers-en-Bois, France
| | - Lluís Brotons
- Landscape Dynamics and Biodiversity Program, Forest Science and Technology Centre of Catalonia (CTFC), Crtra. Sant Llorenç de Morunys, km 2, 25280 Solsona, Spain
- CREAF, Cerdanyola del Vallès 08193, Spain
- CSIC, Cerdanyola del Vallès 08193, Spain
| | - Thomas Frank
- Institute of Zoology, University of Natural Resources and Life Sciences, Vienna 1180, Austria
| | - Moritz Fusser
- iES Landau, Institute for Environmental Sciences, Ecosystem Analysis, University of Kaiserslautern-Landau, Fortstrasse 7, Landau 76829, Germany
| | - David Giralt
- Landscape Dynamics and Biodiversity Program, Forest Science and Technology Centre of Catalonia (CTFC), Crtra. Sant Llorenç de Morunys, km 2, 25280 Solsona, Spain
| | - Ezequiel González
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol 165 00, Czech Republic
- Instituto Multidisciplinario de Biología Vegetal (CONICET-Universidad Nacional de Córdoba), Av. Velez Sarsfield 1611, 5000 Córdoba, Argentina
| | - Anouschka R. Hof
- Wildlife Ecology and Conservation Group, Wageningen University, Droevendaalsesteeg 3, 6708 PB, Wageningen, the Netherlands
| | - Henryk Luka
- Research Institute of Organic Agriculture (FiBL), Ackerstrasse 113, Postfach, Frick 5070, Switzerland
| | - Ronan Marrec
- Ecologie et Dynamique des Systèmes Anthropisés (EDYSAN, UMR CNRS 7058), Université de Picardie Jules Verne, Amiens, France
| | - Michael A. Nash
- Department of Ecology, Environment & Evolution, School of Life Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Katherina Ng
- Fenner School of Environment and Society, The Australian National University, Canberra, Australia
| | | | - Brigitte Poulin
- Tour du Valat Research Institute for the conservation of Mediterranean wetlands, Le Sambuc, 13200 Arles, France
| | | | - Teja Tscharntke
- Agroecology, Department of Crop Science, University of Göttingen, Göttingen, Germany
| | - Matthias Tschumi
- Agroecology and Environment, Agroscope, Reckenholzstrasse 191, Zurich 8046, Switzerland
- Swiss Ornithological Institute, Seerose 1, CH-6204 Sempach, Switzerland
| | - Aude Vialatte
- UMR Dynafor, INRAE, Toulouse University, 31326 Castanet Tolosan, France
- LTSER Zone Atelier « PYRÉNÉES GARONNE », 31320 Auzeville-Tolosane, France
| | - Laura Van Vooren
- Faculty of Bioscience Engineering, Department of Forest and Water Management, Forest & Nature Lab, Ghent University, Geraardsbergsesteenweg 267, 9090 Gontrode, Belgium
| | - Muhammad Zubair-Anjum
- Department of Zoology & Biology, Faculty of Sciences, Pir Mehr Ali Shah Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Martin H. Entling
- iES Landau, Institute for Environmental Sciences, Ecosystem Analysis, University of Kaiserslautern-Landau, Fortstrasse 7, Landau 76829, Germany
| | - Ingolf Steffan-Dewenter
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg 97074 Germany
| | - Jens Schirmel
- iES Landau, Institute for Environmental Sciences, Ecosystem Analysis, University of Kaiserslautern-Landau, Fortstrasse 7, Landau 76829, Germany
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Ferrante M, Schulze M, Westphal C. Hedgerows can increase predation rates in wheat fields in homogeneous agricultural landscapes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 349:119498. [PMID: 37944322 DOI: 10.1016/j.jenvman.2023.119498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/12/2023]
Abstract
In agricultural landscapes, semi-natural habitats can support populations of beneficial species, such as natural enemies. Using artificial caterpillars made of plasticine, we compared arthropod and vertebrate predation rates in wheat fields adjacent to hedgerows or spontaneous grass margins in two contrasting agricultural landscapes. Overall, 25.3% of the caterpillars were attacked after 24 h, mainly by arthropods (67.1%). Predation rates in the heterogeneous and homogeneous landscapes were similar (mean ± SE; 24.9% ± 3.0% vs 25.7% ± 3.6%, n = 10 per landscape). However, we found a significant interaction between the margin and landscape type. Total (arthropods + vertebrates) predation rates were significantly higher in wheat fields next to hedgerows than in conventional wheat fields with grass margins in the homogeneous landscape (33.7% ± 4.5% vs 17.7% ± 2.5%, n = 5 per margin type and landscape), while no difference between predation rates in the two margin types was detected in the heterogeneous landscape. Total and vertebrate predation rates were positively affected by plant species richness, which suggest that one of the mechanisms through which hedgerows can support higher predator activity than spontaneous grass margins, particularly in homogeneous agricultural landscapes, is by providing higher plant diversity. Our results suggest that in simple landscapes, hedgerows may act as habitat islands of high conservation value for biodiversity, having a disproportionate value compared to hedgerows in landscapes that include forest fragments and other semi-natural habitats.
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Affiliation(s)
- Marco Ferrante
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, 37077, Göttingen, Germany.
| | - Marlene Schulze
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, 37077, Göttingen, Germany
| | - Catrin Westphal
- Functional Agrobiodiversity, Department of Crop Sciences, University of Göttingen, 37077, Göttingen, Germany; Centre of Biodiversity and Sustainable Land Use (CBL), University of Göttingen, 37077 Göttingen, Germany
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5
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Responses of selected beetle families (Carabidae, Chrysomelidae, Curculionidae) to non-crop habitats in an agricultural landscape. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01100-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractAgricultural intensification has caused a simplification of agricultural landscapes, accompanied by increasing field sizes and a reduction of non-crop habitats. To mitigate negative impacts of intensification, it is necessary to understand to what extent different non-crop habitats contribute to the maintenance of biodiversity in agroecosystems. Here, we compared the taxonomic diversity of three beetle families among four habitat types—wheat fields, grassy field margins, wildflower-sown areas under power poles, and permanent grassland fallows, in an agricultural landscape in western Germany. Carabidae were caught by pitfall trapping, Chrysomelidae and Curculionidae by suction sampling. We found surprisingly little variation among habitat types, though the rarefied species number tended to be higher in grassland fallows and field margins than under power poles and in wheat fields. Nevertheless, species assemblages differed substantially among habitat types. In Carabidae, grassland fallows were dominated by hygrophilous species with poor dispersal ability as opposed to all other habitat types being dominated by open landscape species with high dispersal ability. In Chrysomelidae and Curculionidae, power pole islands differed from the other habitat types with predominantly open landscape species, whereas wheat fields and grassland fallows were clearly dominated by eurytopic species. Our results thus highlight the need for a combination of different conservation measures for enhancing the functional diversity of beetle assemblages.
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Selecting Graph Metrics with Ecological Significance for Deepening Landscape Characterization: Review and Applications. LAND 2022. [DOI: 10.3390/land11030338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The usual approaches to describing and understanding ecological processes in a landscape use patch-mosaic models based on traditional landscape metrics. However, they do not consider that many of these processes cannot be observed without considering the multiple interactions between different land-use patches in the landscape. The objective of this research was to provide a synthetic overview of graph metrics that characterize landscapes based on patch-mosaic models and to analyze the ecological meaning of the metrics to propose a relevant selection explaining biodiversity patterns and ecological processes. First, we conducted a literature review of graph metrics applied in ecology. Second, a case study was used to explore the behavior of a group of selected graph metrics in actual differentiated landscapes located in a long-term socioecological research site in Brittany, France. Thirteen landscape-scale metrics and 10 local-scale metrics with ecological significance were analyzed. Metrics were grouped for landscape-scale and local-scale analysis. Many of the metrics were able to identify differences between the landscapes studied. Lastly, we discuss how graph metrics offer a new perspective for landscape analysis, describe the main characteristics related to their calculation and the type of information provided, and discuss their potential applications in different ecological contexts.
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Zuim V, Marques VM, Godoi CTD, Gontijo LM, Haro MM, Guedes RNC. Does refuge spillover affect arthropod food webs associated with Bt maize? PEST MANAGEMENT SCIENCE 2021; 77:3088-3098. [PMID: 33798281 DOI: 10.1002/ps.6388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 01/30/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND A high dose/refuge combination is the main tactic recommended for mitigating resistance selection of target herbivore species in crops expressing insecticidal proteins of the bacterium Bacillus thuringiensis (i.e. Bt proteins). The tactic consists of the simultaneous use of Bt crops expressing high levels of the Bt protein associated with neighboring areas of refuge of the same non-Bt crop species. Nonetheless, the approach faces controversy regarding its effectiveness and scale of adoption, at least in some regions. One concern focuses on its potential impact on the arthropod community, including its short-term and spatially dependent impact considering the likely biota spillover effect between Bt and non-Bt neighboring areas. Thus, the eventual spillover of Bt maize targeted and non-targeted arthropods was surveyed along transects extending from the refuge border to the center of the Bt maize area. RESULTS Arthropods were collected throughout the maize vegetative and reproductive stages. A total of 85 arthropod species were collected, but their richness and abundance did not vary with distance from the refuge. By contrast, cultivation season played a significant role in distinguishing the arthropod communities. Refuge distance from the sampling point within Bt-fields did not significantly affect the food web metrics, unlike season, which affected the number of nodes integrating each food web. Winter maize cultivation exhibited higher arthropod diversity and combined values of species numeric abundance and biomass at each trophic level. CONCLUSIONS No arthropod spillover was evident between the refuge edge and Bt maize, adding further controversy to the tactic currently subjected to lower usage in the region with a disputed cost-benefit relationship, because not even the target and its interdependent species were affected. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Vitor Zuim
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Vinicius M Marques
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brazil
- Departamento de Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, Brazil
| | - Carolina Tavares D Godoi
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brazil
- Departamento de Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, Brazil
| | - Lessando M Gontijo
- Departamento de Manejo e Conservação de Ecossistemas Naturais e Agrários, Universidade Federal de Viçosa - Campus Florestal, Florestal, Brazil
| | - Marcelo M Haro
- Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri), Estação Experimental de Itajaí, Itajaí, Brazil
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Ariza GM, Jácome J, Esquivel HE, Kotze DJ. Early successional dynamics of ground beetles (Coleoptera, Carabidae) in the tropical dry forest ecosystem in Colombia. Zookeys 2021; 1044:877-906. [PMID: 34183895 PMCID: PMC8222338 DOI: 10.3897/zookeys.1044.59475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/08/2021] [Indexed: 11/12/2022] Open
Abstract
Little is known about the successional dynamics of insects in the highly threatened tropical dry forest (TDF) ecosystem. For the first time, we studied the response of carabid beetles to vegetal succession and seasonality in this ecosystem in Colombia. Carabid beetles were collected from three TDF habitat types in two regions in Colombia: initial successional state (pasture), early succession, and intermediate succession (forest). The surveys were performed monthly for 13 months in one of the regions (Armero) and during two months, one in the dry and one in the wet season, in the other region (Cambao). A set of environmental variables were recorded per month at each site. Twenty-four carabid beetle species were collected during the study. Calosoma alternans and Megacephala affinis were the most abundant species, while most species were of low abundance. Forest and pasture beetle assemblages were distinct, while the early succession assemblage overlapped with these assemblages. Canopy cover, litter depth, and soil and air temperatures were important in structuring the assemblages. Even though seasonality did not affect the carabid beetle assemblage, individual species responded positively to the wet season. It is shown that early successional areas in TDF could potentially act as habitat corridors for species to recolonize forest areas, since these successional areas host a number of species that inhabit forests and pastures. Climatic variation, like the El Niño episode during this study, appears to affect the carabid beetle assemblage negatively, exasperating concerns of this already threatened tropical ecosystem.
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Affiliation(s)
- Gloria Maria Ariza
- Departamento de Biología, Unidad de Ecología y Sistemática (UNESIS), Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Jorge Jácome
- Departamento de Biología, Unidad de Ecología y Sistemática (UNESIS), Pontificia Universidad Javeriana, Bogotá, Colombia
| | | | - D Johan Kotze
- Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, Niemenkatu 73, 15140, Lahti, Finland
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Schroeder H, Grab H, Kessler A, Poveda K. Human-Mediated Land Use Change Drives Intraspecific Plant Trait Variation. FRONTIERS IN PLANT SCIENCE 2021; 11:592881. [PMID: 33519849 PMCID: PMC7840540 DOI: 10.3389/fpls.2020.592881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 12/22/2020] [Indexed: 06/02/2023]
Abstract
In the Anthropocene, more than three quarters of ice-free land has experienced some form of human-driven habitat modification, with agriculture dominating 40% of the Earth's surface. This land use change alters the quality, availability, and configuration of habitat resources, affecting the community composition of plants and insects, as well as their interactions with each other. Landscapes dominated by agriculture are known to support a lower abundance and diversity of pollinators and frequently larger populations of key herbivore pests. In turn, insect communities subsidized by agriculture may spill into remaining natural habitats with consequences for wild plants persisting in (semi) natural habitats. Adaptive responses by wild plants may allow them to persist in highly modified landscapes; yet how landscape-mediated variation in insect communities affects wild plant traits related to reproduction and defense remains largely unknown. We synthesize the evidence for plant trait changes across land use gradients and propose potential mechanisms by which landscape-mediated changes in insect communities may be driving these trait changes. Further, we present results from a common garden experiment on three wild Brassica species demonstrating variation in both defensive and reproductive traits along an agricultural land use gradient. Our framework illustrates the potential for plant adaptation under land use change and predicts how defense and reproduction trait expression may shift in low diversity landscapes. We highlight areas of future research into plant population and community effects of land use change.
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Affiliation(s)
- Hayley Schroeder
- Department of Entomology, Cornell University, Ithaca, NY, United States
| | - Heather Grab
- Department of Entomology, Cornell University, Ithaca, NY, United States
- School of Integrative Plant Sciences, Cornell University, Ithaca, NY, United States
| | - André Kessler
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, United States
| | - Katja Poveda
- Department of Entomology, Cornell University, Ithaca, NY, United States
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Smaller and Isolated Grassland Fragments Are Exposed to Stronger Seed and Insect Predation in Habitat Edges. FORESTS 2021. [DOI: 10.3390/f12010054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Habitat fragmentation threatens terrestrial arthropod biodiversity, and thereby also leads to alterations of ecosystem functioning and stability. Predation on insects and seeds by arthropods are two very important ecological functions because of their community-structuring effects. We addressed the effect of fragment connectivity, fragment size, and edge effect on insect and seed predation of arthropods. We studied 60 natural fragments of two grassland ecosystems in the same region (Hungarian Great Plain), 30 forest-steppes, and 30 burial mounds (kurgans). The size of fragments were in the range of 0.16–6.88 ha for forest-steppe and 0.01–0.44 ha for kurgan. We used 2400 sentinel arthropod preys (dummy caterpillars) and 4800 seeds in trays for the measurements. Attack marks on dummy caterpillars were used for predator identification and calculation of insect predation rates. In the case of seeds, predation rates were calculated as the number of missing or damaged seeds per total number of exposed seeds. Increasing connectivity played a role only in generally small kurgans, with a negative effect on insect and seed predation rates in the edges. In contrast, fragment size moderated edge effects on insect and seed predation rates in generally large forest-steppes. The difference between edges and centres was more pronounced in small than in large fragments. Our study emphasizes the important role of landscape and fragment-scale factors interacting with edge effect in shaping ecosystem functions in natural grassland fragments of modified landscapes. Managing functional landscapes to optimize the assessment of ecosystem functions and services needs a multispatial scale approach.
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Pinto CE, Awade M, Watanabe MTC, Brito RM, Costa WF, Maia UM, Imperatriz-Fonseca VL, Giannini TC. Size and isolation of naturally isolated habitats do not affect plant-bee interactions: A case study of ferruginous outcrops within the eastern Amazon forest. PLoS One 2020; 15:e0238685. [PMID: 32915824 PMCID: PMC7485833 DOI: 10.1371/journal.pone.0238685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/22/2020] [Indexed: 11/19/2022] Open
Abstract
Pollination may be severely affected by the decreasing size and increasing isolation of habitat patches. However, most studies that have considered the effects of these two variables on plant-pollinator interactions have been carried out in areas that have undergone anthropogenic fragmentation, and little is known about their effects in natural habitats. The Carajás National Forest and Campos Ferruginosos National Park are two protected areas in the eastern Amazon where one can find isolated ferruginous outcrops characterized by iron-rich soil and herbaceous-shrub vegetation surrounded by Amazon forest. These patches of canga provide an opportunity to analyze plant-pollinator interactions in naturally fragmented areas. Our objective was to test whether the size and isolation of naturally isolated outcrops located in Carajás affect plant-pollinator interactions by using pollination syndromes and interaction networks. We determined the pollination syndromes of 771 plant species that occurred in eleven canga patches and performed field work to analyze plant-pollinator networks in nine canga patches. The structure of the plant-pollinator networks was not affected by the size or isolation of the canga patches. Generalist species were present in all canga areas, indicating that they are important in maintaining the plant communities in isolated canga patches. The lack of significance related to the distance between canga patches suggests that the forest does not prevent pollinator movement between canga patches.
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Affiliation(s)
| | | | | | | | | | - Ulysses M. Maia
- Instituto Tecnológico Vale, Pará, Brazil
- Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
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12
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Aguilera G, Roslin T, Miller K, Tamburini G, Birkhofer K, Caballero‐Lopez B, Lindström SA, Öckinger E, Rundlöf M, Rusch A, Smith HG, Bommarco R. Crop diversity benefits carabid and pollinator communities in landscapes with semi‐natural habitats. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13712] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guillermo Aguilera
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Tomas Roslin
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Kirsten Miller
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne UK
| | - Giovanni Tamburini
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Soil, Plant and Food Sciences (DiSSPA‐Entomology) University of Bari Bari Italy
| | - Klaus Birkhofer
- Department of Ecology Brandenburg University of Technology Cottbus‐Senftenberg Cottbus Germany
| | | | - Sandra Ann‐Marie Lindström
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
- Department of Biology Lund University Lund Sweden
- Swedish Rural Economy and Agricultural Society Kristianstad Sweden
| | - Erik Öckinger
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
| | - Maj Rundlöf
- Department of Biology Lund University Lund Sweden
| | - Adrien Rusch
- INRAE, UMR 1065 Santé et Agroécologie du Vignoble Université de Bordeaux Villenave d'Ornon France
| | | | - Riccardo Bommarco
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
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13
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Boetzl FA, Schuele M, Krauss J, Steffan‐Dewenter I. Pest control potential of adjacent agri‐environment schemes varies with crop type and is shaped by landscape context and within‐field position. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13653] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabian A. Boetzl
- Department of Animal Ecology and Tropical Biology Biocenter University of Würzburg Würzburg Germany
| | - Maren Schuele
- Department of Animal Ecology and Tropical Biology Biocenter University of Würzburg Würzburg Germany
| | - Jochen Krauss
- Department of Animal Ecology and Tropical Biology Biocenter University of Würzburg Würzburg Germany
| | - Ingolf Steffan‐Dewenter
- Department of Animal Ecology and Tropical Biology Biocenter University of Würzburg Würzburg Germany
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14
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Knapp M, Seidl M, Knappová J, Macek M, Saska P. Temporal changes in the spatial distribution of carabid beetles around arable field-woodlot boundaries. Sci Rep 2019; 9:8967. [PMID: 31222130 PMCID: PMC6586664 DOI: 10.1038/s41598-019-45378-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 06/04/2019] [Indexed: 11/09/2022] Open
Abstract
Carabids are considered beneficial arthropods in agroecosystems, where they prey on crop pests or consume weed seeds. Therefore, knowledge of the spatial distribution of carabids in agricultural landscapes is crucial to efficiently manage the ecosystem services that they provide. In the present study, we investigated the spatial distribution of carabids around arable field-woodlot boundaries in different seasons: (1) early spring, (2) late spring, (3) summer and (4) late autumn. The spatial distribution of carabid abundance (activity-density) and species richness varied seasonally, and the total abundance was highest within arable fields, except in early spring when it peaked at the boundaries. The observed pattern was mainly driven by the spatial distribution of the open-habitat species, which aggregated near the field boundaries during winter and early spring. The open-habitat species penetrated into woodlots during the summer season but occurred almost exclusively outside woodlots in the other sampling periods. The abundance of the forest species was highest within woodlots with the exception of the early spring season, when their abundance peaked at the boundaries. Carabid species richness was highest within arable fields in close proximity to woodlot boundaries with the exception of the summer season, when the total species richness was similar across habitats.
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Affiliation(s)
- Michal Knapp
- Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, CZ-165 00, Prague, Suchdol, Czech Republic.
| | - Miroslav Seidl
- Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, CZ-165 00, Prague, Suchdol, Czech Republic
| | - Jana Knappová
- Institute of Botany, Czech Academy of Sciences, Zámek 1, CZ-252 43, Průhonice, Czech Republic.,Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic
| | - Martin Macek
- Institute of Botany, Czech Academy of Sciences, Zámek 1, CZ-252 43, Průhonice, Czech Republic.,Department of Botany, Faculty of Science, Charles University, Benátská 2, CZ-128 01, Prague 2, Czech Republic
| | - Pavel Saska
- Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, CZ-165 00, Prague, Suchdol, Czech Republic.,Crop Research Institute, Drnovská 507, CZ-161 06, Prague 6, Ruzyně, Czech Republic
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15
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Magura T, Lövei GL. Environmental filtering is the main assembly rule of ground beetles in the forest and its edge but not in the adjacent grassland. INSECT SCIENCE 2019; 26:154-163. [PMID: 28675647 DOI: 10.1111/1744-7917.12504] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/20/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
In a fragmented landscape, transitional zones between neighboring habitats are common, and our understanding of community organizational forces across such habitats is important. Edge studies are numerous, but the majority of them utilize information on species richness and abundance. Abundance and taxonomic diversity, however, provide little information on the functioning and phylogeny of the co-existing species. Combining the evaluation of their functional and phylogenetic relationships, we aimed to assess whether ground beetle assemblages are deterministically or stochastically structured along grassland-forest gradients. Our results showed different community assembly rules on opposite sides of the forest edge. In the grassland, co-occurring species were functionally and phylogenetically not different from the random null model, indicating a random assembly process. Contrary to this, at the forest edge and the interior, co-occurring species showed functional and phylogenetic clustering, thus environmental filtering was the likely process structuring carabid assemblages. Community assembly in the grassland was considerably affected by asymmetrical species flows (spillover) across the forest edge: more forest species penetrated into the grassland than open-habitat and generalist species entered into the forest. This asymmetrical species flow underlines the importance of the filter function of forest edges. As unfavorable, human-induced changes to the structure, composition and characteristics of forest edges may alter their filter function, edges have to be specifically considered during conservation management.
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Affiliation(s)
- Tibor Magura
- Department of Ecology, University of Debrecen, Debrecen, Hungary
| | - Gábor L Lövei
- Department of Agroecology, Flakkebjerg Research Centre, Aarhus University, Slagelse, Denmark
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16
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Boetzl FA, Ries E, Schneider G, Krauss J. It's a matter of design-how pitfall trap design affects trap samples and possible predictions. PeerJ 2018; 6:e5078. [PMID: 29967739 PMCID: PMC6022721 DOI: 10.7717/peerj.5078] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 06/04/2018] [Indexed: 11/20/2022] Open
Abstract
Background Pitfall traps are commonly used to assess ground dwelling arthropod communities. The effects of different pitfall trap designs on the trapping outcome are poorly investigated however they might affect conclusions drawn from pitfall trap data greatly. Methods We tested four pitfall trap types which have been used in previous studies for their effectiveness: a simple type, a faster exchangeable type with an extended plastic rim plate and two types with guidance barriers (V- and X-shaped). About 20 traps were active for 10 weeks and emptied biweekly resulting in 100 trap samples. Results Pitfall traps with guidance barriers were up to five times more effective than simple pitfall traps and trap samples resulted in more similar assemblage approximations. Pitfall traps with extended plastic rim plates did not only perform poorly but also resulted in distinct carabid assemblages with less individuals of small species and a larger variation. Discussion Due to the obvious trait filtering and resulting altered assemblages, we suggest not to use pitfall traps with extended plastic rim plates. In comprehensive biodiversity inventories, a smaller number of pitfall traps with guidance barriers and a larger number of spatial replicates is of advantage, while due to comparability reasons, the use of simple pitfall traps will be recommended in most other cases.
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Affiliation(s)
- Fabian A Boetzl
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
| | - Elena Ries
- Regierungspräsidium Karlsruhe, Referat 56-Naturschutz und Landschaftspflege, Karlsruhe, Germany
| | - Gudrun Schneider
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
| | - Jochen Krauss
- Department of Animal Ecology and Tropical Biology, Biocenter, University of Würzburg, Am Hubland, Würzburg, Germany
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17
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Agri‐environmental schemes promote ground‐dwelling predators in adjacent oilseed rape fields: Diversity, species traits and distance‐decay functions. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13162] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Zwolak R, Witczuk J, Bogdziewicz M, Rychlik L, Pagacz S. Simultaneous population fluctuations of rodents in montane forests and alpine meadows suggest indirect effects of tree masting. J Mammal 2018. [DOI: 10.1093/jmammal/gyy034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Rafał Zwolak
- Department of Systematic Zoology, Faculty of Biology, Adam Mickiewicz University, Umultowska, Poznań, Poland
| | - Julia Witczuk
- Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza, Warszawa, Poland
| | - Michał Bogdziewicz
- Department of Systematic Zoology, Faculty of Biology, Adam Mickiewicz University, Umultowska, Poznań, Poland
- CREAF, Campus de Bellaterra (UAB) Edifici C, Cerdanyola del Valles, Catalonia, Spain
| | - Leszek Rychlik
- Department of Systematic Zoology, Faculty of Biology, Adam Mickiewicz University, Umultowska, Poznań, Poland
| | - Stanisław Pagacz
- Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza, Warszawa, Poland
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19
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Davis DE, Gagné SA. Boundaries in ground beetle (Coleoptera: Carabidae) and environmental variables at the edges of forest patches with residential developments. PeerJ 2018; 6:e4226. [PMID: 29333346 PMCID: PMC5764035 DOI: 10.7717/peerj.4226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/13/2017] [Indexed: 11/20/2022] Open
Abstract
Background Few studies of edge effects on wildlife objectively identify habitat edges or explore non-linear responses. In this paper, we build on ground beetle (Coleoptera: Carabidae) research that has begun to address these domains by using triangulation wombling to identify boundaries in beetle community structure and composition at the edges of forest patches with residential developments. We hypothesized that edges are characterized by boundaries in environmental variables that correspond to marked discontinuities in vegetation structure between maintained yards and forest. We expected environmental boundaries to be associated with beetle boundaries. Methods We collected beetles and measured environmental variables in 200 m by 200 m sampling grids centered at the edges of three forest patches, each with a rural, suburban, or urban context, in Charlotte, North Carolina, USA. We identified boundaries within each grid at two spatial scales and tested their significance and overlap using boundary statistics and overlap statistics, respectively. We complemented boundary delineation with k-means clustering. Results Boundaries in environmental variables, such as temperature, grass cover, and leaf litter depth, occurred at or near the edges of all three sites, in many cases at both scales. The beetle variables that exhibited the most pronounced boundary structure in relation to edges were total species evenness, generalist abundance, generalist richness, generalist evenness, and Agonum punctiforme abundance. Environmental and beetle boundaries also occurred within forest patches and residential developments, indicating substantial localized spatial variation on either side of edges. Boundaries in beetle and environmental variables that displayed boundary structure at edges significantly overlapped, as did boundaries on either side of edges. The comparison of boundaries and clusters revealed that boundaries formed parts of the borders of patches of similar beetle or environmental condition. Discussion We show that edge effects on ground beetle community structure and composition and environmental variation at the intersection of forest patches and residential developments can be described by boundaries and that these boundaries overlap in space. However, our results also highlight the complexity of edge effects in our system: environmental boundaries were located at or near edges whereas beetle boundaries related to edges could be spatially disjunct from them; boundaries incompletely delineated edges such that only parts of edges were well-described by sharp transitions in beetle and/or environmental variables; and the occurrence of boundaries related to edges was apparently influenced by individual property management practices, site-specific characteristics such as development geometry, and spatial scale.
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Affiliation(s)
- Doreen E Davis
- Department of Geography and Earth Sciences, University of North Carolina at Charlotte, Charlotte, NC, United States of America
| | - Sara A Gagné
- Department of Geography and Earth Sciences, University of North Carolina at Charlotte, Charlotte, NC, United States of America
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20
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Boesing AL, Nichols E, Metzger JP. Land use type, forest cover and forest edges modulate avian cross‐habitat spillover. J Appl Ecol 2017. [DOI: 10.1111/1365-2664.13032] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
| | - Elizabeth Nichols
- Department of Ecology University of São Paulo São Paulo SP Brazil
- Department of Biology Swarthmore College Swarthmore PA USA
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