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Rosas-Espinoza VC, Álvarez-Grzybowska E, Godoy González AA, Santiago-Pérez AL, Peña-Joya KE, Rodríguez-Zaragoza FA, Díaz Pérez L, Huerta Martínez FM. Taxonomic diversity of amphibians (Amphibia, Anura) and reptiles (Reptilia, Testudines, Squamata) in a heterogeneous landscape in west-central Mexico: a checklist and notes on geographical distributions. Zookeys 2024; 1211:29-55. [PMID: 39262608 PMCID: PMC11384138 DOI: 10.3897/zookeys.1211.122565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 07/18/2024] [Indexed: 09/13/2024] Open
Abstract
In Mexico, land use changes have significantly impacted the diversity of amphibians and reptiles in a negative way. In light of this, we evaluate the alpha and beta components of the taxonomic diversity of amphibians and reptiles in a heterogeneous landscape in west-central Mexico. Additionally, we provide a checklist of amphibian and reptile species recorded over nine years of observations within the studied landscape and surrounding areas. The land cover/use types with the highest species richness and alpha taxonomic diversity differed between amphibians and reptiles. Overall beta taxonomic diversity was high for both groups, but slightly higher in reptiles. This taxonomic differentiation mainly corresponded to a difference in the turnover component and was greater in pristine habitats compared to disturbed ones. The checklist records 20 species of amphibians (ten of which are endemic) and 48 of reptiles (30 endemics). Additionally, the study expands the known geographical distribution range of one species of frog and three species of snakes. Our findings suggest that heterogeneous landscapes with diverse land cover/use types can provide essential habitats for the conservation of amphibian and reptile species.
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Affiliation(s)
- Verónica Carolina Rosas-Espinoza
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
| | - Eliza Álvarez-Grzybowska
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
| | - Arquímedes Alfredo Godoy González
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
| | - Ana Luisa Santiago-Pérez
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
| | - Karen Elizabeth Peña-Joya
- Departamento de Producción Forestal, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Puerto Vallarta Mexico
| | - Fabián Alejandro Rodríguez-Zaragoza
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
| | - Leopoldo Díaz Pérez
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
| | - Francisco Martín Huerta Martínez
- Laboratorio de Ecología Molecular, Microbiología y Taxonomía (LEMITAX), Departamento de Ecología Aplicada,, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ramón Padilla Sánchez 2100, CP 45200, Zapopan, Jalisco, Mexico Universidad de Guadalajara Zapopan Mexico
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Voltura EV, Tracy JL, Heatley JJ, Kiacz S, Brightsmith DJ, Filippi AM, Franco JG, Coulson R. Modelling Red-Crowned Parrot (Psittaciformes: Amazona viridigenalis [Cassin, 1853]) distributions in the Rio Grande Valley of Texas using elevation and vegetation indices and their derivatives. PLoS One 2023; 18:e0294118. [PMID: 38055729 DOI: 10.1371/journal.pone.0294118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/26/2023] [Indexed: 12/08/2023] Open
Abstract
Texas Rio Grande Valley Red-crowned Parrots (Psittaciformes: Amazona viridigenalis [Cassin, 1853]) primarily occupy vegetated urban rather than natural areas. We investigated the utility of raw vegetation indices and their derivatives as well as elevation in modelling the Red-crowned parrot's general use, nest site, and roost site habitat distributions. A feature selection algorithm was employed to create and select an ensemble of fine-scale, top-ranked MaxEnt models from optimally-sized, decorrelated subsets of four to seven of 199 potential variables. Variables were ranked post hoc by frequency of appearance and mean permutation importance in top-ranked models. Our ensemble models accurately predicted the three distributions of interest ([Formula: see text] Area Under the Curve [AUC] = 0.904-0.969). Top-ranked variables for different habitat distribution models included: (a) general use-percent cover of preferred ranges of entropy texture of Normalized Difference Vegetation Index (NDVI) values, entropy and contrast textures of NDVI, and elevation; (b) nest site-entropy textures of NDVI and Green-Blue NDVI, and percent cover of preferred range of entropy texture of NDVI values; (c) roost site-percent cover of preferred ranges of entropy texture of NDVI values, contrast texture of NDVI, and entropy texture of Green-Red Normalized Difference Index. Texas Rio Grande Valley Red-crowned Parrot presence was associated with urban areas with high heterogeneity and randomness in the distribution of vegetation and/or its characteristics (e.g., arrangement, type, structure). Maintaining existing preferred vegetation types and incorporating them into new developments should support the persistence of Red-crowned Parrots in southern Texas.
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Affiliation(s)
- Elise Varaela Voltura
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, United States of America
- Schubot Center for Avian Health, Texas A&M University, College Station, Texas, United States of America
| | - James L Tracy
- Department of Entomology, Texas A&M University, College Station, Texas, United States of America
| | - J Jill Heatley
- Schubot Center for Avian Health, Texas A&M University, College Station, Texas, United States of America
- Department of Small Animal Clinical Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Simon Kiacz
- Schubot Center for Avian Health, Texas A&M University, College Station, Texas, United States of America
- Department of Ecology and Evolutionary Biology, Texas A&M University, College Station, Texas, United States of America
| | - Donald J Brightsmith
- Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, United States of America
- Schubot Center for Avian Health, Texas A&M University, College Station, Texas, United States of America
| | - Anthony M Filippi
- Department of Geography, Texas A&M University, College Station, Texas, United States of America
| | - Jesús G Franco
- Rio Grande Joint Venture, American Bird Conservancy, McAllen, Texas, United States of America
| | - Robert Coulson
- Department of Entomology, Texas A&M University, College Station, Texas, United States of America
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Wanger TC, Brook BW, Evans T, Tscharntke T. Pesticides reduce tropical amphibian and reptile diversity in agricultural landscapes in Indonesia. PeerJ 2023; 11:e15046. [PMID: 36967985 PMCID: PMC10035417 DOI: 10.7717/peerj.15046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 02/21/2023] [Indexed: 03/29/2023] Open
Abstract
Pesticide use on tropical crops has increased substantially in recent decades, posing a threat to biodiversity and ecosystem services. Amphibians and reptiles are common in tropical agricultural landscapes, but few field studies measure pesticide impacts on these taxa. Here we combine 1-year of correlative data with an experimental field approach from Indonesia. We show that while pesticide application cannot predict amphibian or reptile diversity patterns in cocoa plantations, our experimental exposure to herbicides and insecticides in vegetable gardens eliminated amphibians, whereas reptiles were less impacted by insecticide and not affected by herbicide exposure. The pesticide-driven loss of a common amphibian species known to be a pest-control agent (mainly invertebrate predation) suggests a strong indirect negative effect of pesticides on this service. We recommend landscape-based Integrated Pest Management and additional ecotoxicological studies on amphibians and reptiles to underpin a regulatory framework and to assure recognition and protection of their ecosystem services.
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Affiliation(s)
- Thomas Cherico Wanger
- Agroecology, University of Göttingen, Göttingen, Germany
- Sustainable Agricultural Systems & Engineering Laboratory/School of Engineering, Westlake University, Hangzhou, China
| | | | - Theodore Evans
- University of Western Australia, Perth, Australia
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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Preliminary Insights on the Spatial Ecology, Population Demography, and Sexual Dimorphism of the Critically Endangered Sulawesi Forest Turtle (Leucocephalon yuwonoi). J HERPETOL 2022. [DOI: 10.1670/20-113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Lightly-harvested rustic cocoa is a valuable land cover for amphibian and reptile conservation in human-modified rainforest landscapes. JOURNAL OF TROPICAL ECOLOGY 2022. [DOI: 10.1017/s0266467422000219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
The conservation of tropical biodiversity depends not only on forest remnants, but also on anthropogenic land covers. Some shade crops are considered wildlife-friendly agroecosystems, but their conservation value is context- and taxon-dependent. Amphibians and reptiles have received less attention despite their high sensitivity to habitat disturbance. We determined the conservation value of lightly-harvested rustic cocoa plantations for herpetofauna in the Lacandona region, Mexico. We compared 12 environmental variables between habitats. Then, we compared the abundance, species number and composition of amphibian and reptile assemblages. Within each habitat, we explored the relationships between environmental variables and abundance and species number. Tree density, litter cover and litter depth were higher in cocoa. Abundance of reptiles and amphibians were higher in cocoa than forest; species number did not differ. Habitat explained some of the variation (8%) in assemblage composition. In cocoa, amphibian abundance was positively related to canopy height and the presence of a humus layer, while reptile abundance was negatively related to relative humidity. We conclude that lightly-used rustic cocoa plantations can be suitable habitat for forest herpetofauna. As long as cocoa plantations do not replace existing forest cover, they can play an important role in the design of wildlife-friendly tropical landscapes.
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6
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Evans AM, Marshal JP, Alexander GJ. Forest patch characteristics affect reptile occurrence in north‐western Madagascar. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Alexandra M. Evans
- School of Animal, Plant and Environmental Sciences Faculty of Science University of the Witwatersrand Johannesburg South Africa
| | - Jason P. Marshal
- School of Animal, Plant and Environmental Sciences Faculty of Science University of the Witwatersrand Johannesburg South Africa
| | - Graham J. Alexander
- School of Animal, Plant and Environmental Sciences Faculty of Science University of the Witwatersrand Johannesburg South Africa
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7
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Dalmolin DA, M. Filho V, Tozetti AM. Anuran assemblage changes along small-scale phytophysiognomies in natural Brazilian grasslands. IHERINGIA. SERIE ZOOLOGIA 2021. [DOI: 10.1590/1678-4766e2021017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Díaz-Ricaurte JC, Arriaga Villegas NC, López Coronado JD, Macias Garzón GX, F. Fiorillo B. Effects of agricultural systems on the anuran diversity in the Colombian Amazon. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2020. [DOI: 10.1080/01650521.2020.1809334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Juan C. Díaz-Ricaurte
- Laboratório de Ecología, Evolução e Conservação de Anfíbios e Répteis, Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
- Semillero de Investigación en Ecofisiologia y Biogeografía de Vertebrados (EcoBioVert), Grupo de Investigación en Biodiversidad y Desarrollo Amazónico (BYDA), Programa de Biología, Facultad de Ciencias Básicas, Universidad de La Amazonía, Florencia, Colombia
- Escola Superior de Agricultura Luiz de Queiroz, Programa de Pós-Graduação em Ecologia Aplicada, Universidade de São Paulo, Piracicaba, Brazil
| | | | | | | | - Bruno F. Fiorillo
- Laboratório de Ecología, Evolução e Conservação de Anfíbios e Répteis, Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
- Escola Superior de Agricultura Luiz de Queiroz, Programa de Pós-Graduação em Ecologia Aplicada, Universidade de São Paulo, Piracicaba, Brazil
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9
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Ghosh D, Basu P. Factors influencing herpetofauna abundance and diversity in a tropical agricultural landscape mosaic. Biotropica 2020. [DOI: 10.1111/btp.12799] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Song H, Singh D, Tomlinson KW, Yang X, Ogwu MC, Slik JWF, Adams JM. Tropical forest conversion to rubber plantation in southwest China results in lower fungal beta diversity and reduced network complexity. FEMS Microbiol Ecol 2020; 95:5519853. [PMID: 31210262 DOI: 10.1093/femsec/fiz092] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/14/2019] [Indexed: 01/05/2023] Open
Abstract
Despite the extensive, ongoing conversion of tropical forests to rubber plantation, the effects of this land-use change on soil fungal community diversity and composition are still poorly known. We compared a network of sites of tropical forest in southern Yunnan, China, with a network of rubber plantation sites originally derived from this forest. Soil DNA was amplified for ITS2 and sequenced using Illumina MiSeq. We found that there was a major shift in community composition across all phyla, including a large reduction in ectomycorrhizal fungi likely related to the absence of hosts. Conversion from forest to rubber plantation had no effect on total fungal α-diversity, but rubber plantation had lower β-diversity, resulting in lower overall gamma diversity. Networks based on co-occurrence of operational taxonomic unit in each land-use type showed that network complexity decreased with land-use change from forest to rubber plantation. Further investigation of soil functionality is needed to investigate whether this lower network complexity is related to reduced soil ecosystem resilience.
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Affiliation(s)
- Hokyung Song
- School of Biological Sciences, Seoul National University, 08826, 1 Gwanak-ro, Seoul, South Korea
| | - Dharmesh Singh
- Environmental Biotechnology & Genomics Division, CSIR-NEERI, Nehru Marg, Nagpur, Maharashtra 440020, India.,Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China
| | - Kyle W Tomlinson
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China
| | - Xiaodong Yang
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China
| | - Matthew Chidozie Ogwu
- School of Biological Sciences, Seoul National University, 08826, 1 Gwanak-ro, Seoul, South Korea.,Department of Plant Biology and Biotechnology, Faculty of Life Sciences, University of Benin, PMB 1154, Ugbowo, Benin City, Edo State, Nigeria
| | - J W Ferry Slik
- Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, BE1410, Brunei Darussalam
| | - Jonathan M Adams
- School of Oceanography and Geography, Nanjing University, Nanjing, China
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11
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Warren‐Thomas E, Nelson L, Juthong W, Bumrungsri S, Brattström O, Stroesser L, Chambon B, Penot É, Tongkaemkaew U, Edwards DP, Dolman PM. Rubber agroforestry in Thailand provides some biodiversity benefits without reducing yields. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13530] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Eleanor Warren‐Thomas
- School of Environmental Sciences University of East Anglia Norwich UK
- Department of Biology University of York York UK
| | - Luke Nelson
- Department of Animal and Plant Sciences University of Sheffield Sheffield UK
| | - Watinee Juthong
- Department of Science Pitchalai Preparatory School Songkhla Thailand
- Department of Biology Faculty of Science Prince of Songkla University Songkhla Thailand
| | - Sara Bumrungsri
- Department of Biology Faculty of Science Prince of Songkla University Songkhla Thailand
| | | | - Laetitia Stroesser
- CIRAD UPR Systèmes de pérennes Hevea Research Platform in Partnership (HRPP) Kasetsart University Bangkok Thailand
- CIRAD UPR Systèmes de pérennes Univ Montpellier Montpellier France
| | - Bénédicte Chambon
- CIRAD UPR Systèmes de pérennes Hevea Research Platform in Partnership (HRPP) Kasetsart University Bangkok Thailand
- CIRAD UPR Systèmes de pérennes Univ Montpellier Montpellier France
| | - Éric Penot
- CIRAD UMR Innovation Montpellier France
- CIRAD INRAMontpellier SupAgro Montpellier France
| | - Uraiwan Tongkaemkaew
- Faculty of Technology and Community Development Thaksin University Phatthalung Thailand
| | - David P. Edwards
- Department of Animal and Plant Sciences University of Sheffield Sheffield UK
| | - Paul M. Dolman
- School of Environmental Sciences University of East Anglia Norwich UK
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Shah HA, Huxley P, Elmes J, Murray KA. Agricultural land-uses consistently exacerbate infectious disease risks in Southeast Asia. Nat Commun 2019; 10:4299. [PMID: 31541099 PMCID: PMC6754503 DOI: 10.1038/s41467-019-12333-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 08/31/2019] [Indexed: 12/14/2022] Open
Abstract
Agriculture has been implicated as a potential driver of human infectious diseases. However, the generality of disease-agriculture relationships has not been systematically assessed, hindering efforts to incorporate human health considerations into land-use and development policies. Here we perform a meta-analysis with 34 eligible studies and show that people who live or work in agricultural land in Southeast Asia are on average 1.74 (CI 1.47-2.07) times as likely to be infected with a pathogen than those unexposed. Effect sizes are greatest for exposure to oil palm, rubber, and non-poultry based livestock farming and for hookworm (OR 2.42, CI 1.56-3.75), malaria (OR 2.00, CI 1.46-2.73), scrub typhus (OR 2.37, CI 1.41-3.96) and spotted fever group diseases (OR 3.91, CI 2.61-5.85). In contrast, no change in infection risk is detected for faecal-oral route diseases. Although responses vary by land-use and disease types, results suggest that agricultural land-uses exacerbate many infectious diseases in Southeast Asia.
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Affiliation(s)
- Hiral A Shah
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK.
- Grantham Institute-Climate Change and the Environment-Imperial College London, London, UK.
| | - Paul Huxley
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
- Grantham Institute-Climate Change and the Environment-Imperial College London, London, UK
| | - Jocelyn Elmes
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK
| | - Kris A Murray
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK
- Grantham Institute-Climate Change and the Environment-Imperial College London, London, UK
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Berriozabal-Islas C, Ramírez-Bautista A, Cruz-Elizalde R, Hernández-Salinas U. Modification of landscape as promoter of change in structure and taxonomic diversity of reptile´s communities: an example in tropical landscape in the central region of Mexico. NATURE CONSERVATION 2018. [DOI: 10.3897/natureconservation.28.26186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The degree of species loss was assessed by comparing the structure of communities and species diversity of reptiles from three different environments, one natural (tropical evergreen forest [TEF]) and two modified (shaded coffee plantation [SCP] and grazing area [GA]) from the mid portion of the Sierra Madre Oriental, Mexico. The results showed 29 species, 18 in TEF, 13 in SCP and 12 in GA. According to the abundance of each species, the reptile structure for TEF and SCP was similar and they both differed from GA, while the diversity (effective number of species) was the highest for TEF. The percentage of number of species from TEF accounted for 28% more species than SCP and GA, which indicated a species loss of about 70% in disturbed environments. The values of beta diversity were the highest between TEF and GA, followed by SCP and GA and to a lesser degree between TEF and SCP, which indicates that TEF showed a high number of exclusive species. Our results suggest that carrying out long-term studies that include richness and diversity in environments with different levels of disturbance, in addition to including characteristics of natural history, might enhance the development of more efficient conservation strategies for these species.
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Carpio AJ, Castro J, Mingo V, Tortosa FS. Herbaceous cover enhances the squamate reptile community in woody crops. J Nat Conserv 2017. [DOI: 10.1016/j.jnc.2017.02.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Gonçalves J, Honrado JP, Vicente JR, Civantos E. A model-based framework for assessing the vulnerability of low dispersal vertebrates to landscape fragmentation under environmental change. ECOLOGICAL COMPLEXITY 2016. [DOI: 10.1016/j.ecocom.2016.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Badillo-Saldaña LM, Ramírez-Bautista A, Wilson LD. Effects of establishment of grazing areas on diversity of amphibian communities in tropical evergreen forests and mountain cloud forests of the Sierra Madre Oriental. REV MEX BIODIVERS 2016. [DOI: 10.1016/j.rmb.2015.09.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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17
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Konopik O, Steffan-Dewenter I, Grafe TU. Effects of Logging and Oil Palm Expansion on Stream Frog Communities on Borneo, Southeast Asia. Biotropica 2015. [DOI: 10.1111/btp.12248] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Oliver Konopik
- Department of Animal Ecology and Tropical Biology; University of Wuerzburg; Theodor-Boveri-Institut; Biozentrum, Am Hubland D-97074 Wuerzburg Germany
| | - Ingolf Steffan-Dewenter
- Department of Animal Ecology and Tropical Biology; University of Wuerzburg; Theodor-Boveri-Institut; Biozentrum, Am Hubland D-97074 Wuerzburg Germany
| | - T. Ulmar Grafe
- Faculty of Science; University Brunei Darussalam; BE 1410 Tungku Link Gadong Brunei Darussalam
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18
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Gallmetzer N, Schulze CH. Impact of oil palm agriculture on understory amphibians and reptiles: A Mesoamerican perspective. Glob Ecol Conserv 2015. [DOI: 10.1016/j.gecco.2015.05.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Meza-Parral Y, Pineda E. Amphibian diversity and threatened species in a severely transformed neotropical region in Mexico. PLoS One 2015; 10:e0121652. [PMID: 25799369 PMCID: PMC4370706 DOI: 10.1371/journal.pone.0121652] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 11/11/2014] [Indexed: 12/03/2022] Open
Abstract
Many regions around the world concentrate a large number of highly endangered species that have very restricted distributions. The mountainous region of central Veracruz, Mexico, is considered a priority area for amphibian conservation because of its high level of endemism and the number of threatened species. The original tropical montane cloud forest in the region has been dramatically reduced and fragmented and is now mainly confined to ravines and hillsides. We evaluated the current situation of amphibian diversity in the cloud forest fragments of this region by analyzing species richness and abundance, comparing assemblage structure and species composition, examining the distribution and abundance of threatened species, and identifying the local and landscape variables associated with the observed amphibian diversity. From June to October 2012 we sampled ten forest fragments, investing 944 person-hours of sampling effort. A total of 895 amphibians belonging to 16 species were recorded. Notable differences in species richness, abundance, and assemblage structure between forest fragments were observed. Species composition between pairs of fragments differed by an average of 53%, with the majority (58%) resulting from species replacement and the rest (42%) explained by differences in species richness. Half of the species detected are under threat of extinction according to the International Union for Conservation of Nature, and although their distribution and abundance varied markedly, there were also ubiquitous and abundant species, along with rare species of restricted distribution. The evident heterogeneity of the ten study sites indicates that to conserve amphibians in a mountainous region such as this one it is necessary to protect groups of fragments which represent the variability of the system. Both individually and together cloud forest fragments are very important to conservation because each remnant is inhabited by several threatened species, some of them at imminent risk of extinction.
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Affiliation(s)
- Yocoyani Meza-Parral
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología, A.C., Xalapa, Veracruz, México
| | - Eduardo Pineda
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología, A.C., Xalapa, Veracruz, México
- * E-mail:
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Correa FS, Juen L, Rodrigues LC, Silva-Filho H, Santos-Costa MC. Effects of oil palm plantations on anuran diversity in the eastern Amazon. ANIM BIOL 2015. [DOI: 10.1163/15707563-00002481] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The extent of land use for oil palm plantations has grown considerably in the tropics due to climate, appropriate soil conditions for cultivation and its profitability. However, oil palm plantations may endanger biodiversity through reduction and fragmentation of forest areas. Herein we analyzed the effects on anuran species richness, composition and total abundance in oil palm plantations and surrounding forests in eastern Amazon. We installed seven plots in oil palm plantations and seven plots in surrounding forests, which we surveyed for the presence of anurans through active visual and acoustic surveys during periods of high and low rainfall levels. Anuran assemblages found in forests and oil palm plantations differed in species richness and composition, with a loss of 54% of species in oil palm plantations. No difference was observed in total abundance of anurans between both environments. While conversion of forests to oil palm plantations may result in less negative impacts on anuran diversity than other types of monocultures, such loss is nevertheless high, making the maintenance of relatively greater forested areas around oil palm plantations necessary in order to conserve anuran diversity.
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Affiliation(s)
- Fabricio S. Correa
- 1Programa de Pós-Graduação em Zoologia, Universidade Federal do Pará e Museu Paraense Emílio Goeldi, Belém, Pará, Brazil
- 2Laboratório de Ecologia e Zoologia de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correia 1, 66075-110 Belém, Pará, Brazil
| | - Leandro Juen
- 1Programa de Pós-Graduação em Zoologia, Universidade Federal do Pará e Museu Paraense Emílio Goeldi, Belém, Pará, Brazil
- 3Laboratório de Ecologia e Conservação, Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correia 1, 66075-110 Belém, Pará, Brazil
| | - Lenise C. Rodrigues
- 2Laboratório de Ecologia e Zoologia de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correia 1, 66075-110 Belém, Pará, Brazil
- 4Universidade Federal Rural da Amazônia, Campus Tomé-Açu, Tomé-Açu, Pará, Brazil
| | - Heriberto F. Silva-Filho
- 1Programa de Pós-Graduação em Zoologia, Universidade Federal do Pará e Museu Paraense Emílio Goeldi, Belém, Pará, Brazil
- 2Laboratório de Ecologia e Zoologia de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correia 1, 66075-110 Belém, Pará, Brazil
| | - Maria C. Santos-Costa
- 1Programa de Pós-Graduação em Zoologia, Universidade Federal do Pará e Museu Paraense Emílio Goeldi, Belém, Pará, Brazil
- 2Laboratório de Ecologia e Zoologia de Vertebrados, Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correia 1, 66075-110 Belém, Pará, Brazil
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21
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Balaji D, Sreekar R, Rao S. Drivers of reptile and amphibian assemblages outside the protected areas of Western Ghats, India. J Nat Conserv 2014. [DOI: 10.1016/j.jnc.2014.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Thresholds of logging intensity to maintain tropical forest biodiversity. Curr Biol 2014; 24:1893-8. [PMID: 25088557 DOI: 10.1016/j.cub.2014.06.065] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 04/14/2014] [Accepted: 06/25/2014] [Indexed: 11/22/2022]
Abstract
Primary tropical forests are lost at an alarming rate, and much of the remaining forest is being degraded by selective logging. Yet, the impacts of logging on biodiversity remain poorly understood, in part due to the seemingly conflicting findings of case studies: about as many studies have reported increases in biodiversity after selective logging as have reported decreases. Consequently, meta-analytical studies that treat selective logging as a uniform land use tend to conclude that logging has negligible effects on biodiversity. However, selectively logged forests might not all be the same. Through a pantropical meta-analysis and using an information-theoretic approach, we compared and tested alternative hypotheses for key predictors of the richness of tropical forest fauna in logged forest. We found that the species richness of invertebrates, amphibians, and mammals decreases as logging intensity increases and that this effect varies with taxonomic group and continental location. In particular, mammals and amphibians would suffer a halving of species richness at logging intensities of 38 m(3) ha(-1) and 63 m(3) ha(-1), respectively. Birds exhibit an opposing trend as their total species richness increases with logging intensity. An analysis of forest bird species, however, suggests that this pattern is largely due to an influx of habitat generalists into heavily logged areas while forest specialist species decline. Our study provides a quantitative analysis of the nuanced responses of species along a gradient of logging intensity, which could help inform evidence-based sustainable logging practices from the perspective of biodiversity conservation.
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23
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Surasinghe T, Baldwin RF. Ghost of land-use past in the context of current land cover: evidence from salamander communities in streams of Blue Ridge and Piedmont ecoregions. CAN J ZOOL 2014. [DOI: 10.1139/cjz-2013-0307] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The Blue Ridge and Piedmont of the southeastern United States are rich in biodiversity and have undergone centuries of extensive deforestation and subsequent urbanization resulting in geomorphic landscape changes. To investigate the impacts of past and present land uses on stream salamander communities across both ecoregions, we surveyed streams associated with different land uses at the riparian zone and watershed. Using the USGS land-cover data set (2006) and aerial photographs (1940), we assessed the current and historical percent land cover (urban, agriculture, and forests) at local and landscape scales for each sampling site. Using percent land cover as predictors and diversity indices (species richness, Simpson’s index, and relative abundance) as response variables, we developed a stepwise multiple regression model and a redundancy analysis. Both analyses indicated the negative impacts of historical land uses, particularly row-crop agriculture, on stream salamander diversity and community structure rendering streams unsuitable for all but the most tolerant species. Legacy effects were prominent in the Piedmont where protected areas with agricultural history were species-deprived (70% decline) compared with stream habitats that had sustained a continuous forest cover through time. Our findings suggested that landscape processes resulting in historical forest cover loss may persist over 50 years during forest recovery.
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Affiliation(s)
- Thilina Surasinghe
- School of Agricultural, Forest, and Environmental Sciences, 261 Lehotsky Hall, Clemson University, SC 29634-0317, USA
| | - Robert F. Baldwin
- School of Agricultural, Forest, and Environmental Sciences, 261 Lehotsky Hall, Clemson University, SC 29634-0317, USA
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24
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Leakey RRB. The role of trees in agroecology and sustainable agriculture in the tropics. ANNUAL REVIEW OF PHYTOPATHOLOGY 2014; 52:113-133. [PMID: 24821184 DOI: 10.1146/annurev-phyto-102313-045838] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Shifting agriculture in the tropics has been replaced by sedentary smallholder farming on a few hectares of degraded land. To address low yields and low income both, the soil fertility, the agroecosystem functions, and the source of income can be restored by diversification with nitrogen-fixing trees and the cultivation of indigenous tree species that produce nutritious and marketable products. Biodiversity conservation studies indicate that mature cash crop systems, such as cacao and coffee with shade trees, provide wildlife habitat that supports natural predators, which, in turn, reduce the numbers of herbivores and pathogens. This review offers suggestions on how to examine these agroecological processes in more detail for the most effective rehabilitation of degraded land. Evidence from agroforestry indicates that in this way, productive and environmentally friendly farming systems that provide food and nutritional security, as well as poverty alleviation, can be achieved in harmony with wildlife.
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Affiliation(s)
- Roger R B Leakey
- Department of Marine and Tropical Biology, James Cook University, Cairns, Australia, QLD 4870;
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25
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Trimble MJ, van Aarde RJ. Amphibian and reptile communities and functional groups over a land-use gradient in a coastal tropical forest landscape of high richness and endemicity. Anim Conserv 2014. [DOI: 10.1111/acv.12111] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. J. Trimble
- Conservation Ecology Research Unit; Department of Zoology & Entomology; University of Pretoria; Hatfield Pretoria South Africa
| | - R. J. van Aarde
- Conservation Ecology Research Unit; Department of Zoology & Entomology; University of Pretoria; Hatfield Pretoria South Africa
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Sreekar R, Mohan A, Das S, Agarwal P, Vivek R. Natural windbreaks sustain bird diversity in a tea-dominated landscape. PLoS One 2013; 8:e70379. [PMID: 23922986 PMCID: PMC3726631 DOI: 10.1371/journal.pone.0070379] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 06/18/2013] [Indexed: 11/18/2022] Open
Abstract
Windbreaks often form networks of forest habitats that improve connectivity and thus conserve biodiversity, but little is known of such effects in the tropics. We determined bird species richness and community composition in windbreaks composed of remnant native vegetation amongst tea plantations (natural windbreaks), and compared it with the surrounding primary forests. Fifty-one, ten-minute point counts were conducted in each habitat type over three days. Despite the limited sampling period, our bird inventories in both natural windbreaks and primary forests were nearly complete, as indicated by bootstrap true richness estimator. Bird species richness and abundance between primary forests and windbreaks were similar, however a difference in bird community composition was observed. Abundances of important functional groups such as frugivores and insectivores did not vary between habitat types but nectarivores were more abundant in windbreaks, potentially as a result of the use of windbreaks as traveling routes, foraging and nesting sites. This preliminary study suggests that natural windbreaks may be important habitats for the persistence of bird species in a production landscape. However, a better understanding of the required physical and compositional characteristics for windbreaks to sustain bird communities is needed for effective conservation management.
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Affiliation(s)
- Rachakonda Sreekar
- Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Science, Mengla, Yunnan, China.
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27
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Trimble MJ, van Aarde RJ. Geographical and taxonomic biases in research on biodiversity in human-modified landscapes. Ecosphere 2012. [DOI: 10.1890/es12-00299.1] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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28
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Kudavidanage EP, Wanger TC, Alwis C, Sanjeewa S, Kotagama SW. Amphibian and butterfly diversity across a tropical land-use gradient in Sri Lanka; implications for conservation decision making. Anim Conserv 2011. [DOI: 10.1111/j.1469-1795.2011.00507.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - C. Alwis
- Faculty of Applied Sciences; Sabaragamuwa University of Sri Lanka; Belihuloya; Sri Lanka
| | - S. Sanjeewa
- Faculty of Applied Sciences; Sabaragamuwa University of Sri Lanka; Belihuloya; Sri Lanka
| | - S. W. Kotagama
- Department of Zoology; University of Colombo; Colombo; Sri Lanka
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29
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Wanger TC, Wielgoss AC, Motzke I, Clough Y, Brook BW, Sodhi NS, Tscharntke T. Endemic predators, invasive prey and native diversity. Proc Biol Sci 2011; 278:690-4. [PMID: 20826488 PMCID: PMC3030846 DOI: 10.1098/rspb.2010.1512] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Accepted: 08/20/2010] [Indexed: 11/12/2022] Open
Abstract
Interactions between native diversity and invasive species can be more complex than is currently understood. Invasive ant species often substantially reduce diversity in the native ants diversity that act as natural control agents for pest insects. In Indonesia (on the island of Sulawesi), the third largest cacao producer worldwide, we show that a predatory endemic toad (Ingerophrynus celebensis) controls invasive ant (Anoplolepis gracilipes) abundance, and positively affects native ant diversity. We call this the invasive-naivety effect (an opposite of enemy release), whereby alien species may not harbour anti-predatory defences against a novel native predator. A positive effect of the toads on native ants may facilitate their predation on insect vectors of cacao diseases. Hence, toads may increase crop yield, but further research is needed on this aspect. Ironically, amphibians are globally the most threatened vertebrate class and are strongly impacted by the conversion of rainforest to cacao plantations in Sulawesi. It is, therefore, crucial to manage cacao plantations to maintain these endemic toads, as they may provide critical ecosystem services, such as invasion resistance and preservation of native insect diversity.
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Affiliation(s)
- Thomas C Wanger
- Environment Institute and School of Earth and Environmental Sciences, University of Adelaide, Adelaide, Australia.
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Tscharntke T, Clough Y, Bhagwat SA, Buchori D, Faust H, Hertel D, Hölscher D, Juhrbandt J, Kessler M, Perfecto I, Scherber C, Schroth G, Veldkamp E, Wanger TC. Multifunctional shade-tree management in tropical agroforestry landscapes - a review. J Appl Ecol 2011. [DOI: 10.1111/j.1365-2664.2010.01939.x] [Citation(s) in RCA: 411] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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