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Cook DG, Stemle LR, Stokes DL, Messerman AF, Meisler JA, Searcy CA. Habitat value of constructed breeding pools for the endangered Sonoma population of California tiger salamander. J Wildl Manage 2023. [DOI: 10.1002/jwmg.22370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Leyna R. Stemle
- Department of Biology, University of Miami, 1301 Memorial Drive Coral Gables FL 33146 USA
| | - David L. Stokes
- University of Washington Bothell, 18115 Campus Way NE, Box 358530 Bothell WA 98011 USA
| | - Arianne F. Messerman
- Department of Biology, University of Miami, 1301 Memorial Drive Coral Gables FL 33146 USA
| | | | - Christopher A. Searcy
- Department of Biology, University of Miami, 1301 Memorial Drive Coral Gables FL 33146 USA
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Conan A, Dehaut N, Enstipp M, Handrich Y, Jumeau J. Stormwater ponds as an amphibian breeding site: a case study with European green toad tadpoles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12114-12124. [PMID: 36104646 DOI: 10.1007/s11356-022-22991-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
Stormwater ponds (SWPs) are built to collect and retain polluted runoff water from roads. Consequently, they are not perceived as suitable habitat for wetland species, such as many amphibians. However, given the drastic decline of wetland areas, SWPs may serve as a habitat for protected amphibian species, such as the European green toad (Bufotes viridis). The latter species is frequently found inside these artificial ponds, but their reproductive success is unknown. We assessed the suitability of SWPs as breeding habitat for European green toads by monitoring 8 SWPs and 8 semi-natural ponds (SNPs), which served as control sites. At each site, two groups of 30 tadpoles, originating at that site, were held inside two floating enclosures that contained sediment from the respective pond. During bi-weekly monitoring, tadpoles were counted and measured, allowing to estimate growth and mortality rates. A variety of biotic and abiotic factors were studied to determine the causes of potential differences in growth and mortality rates between the two pond types. While growth rate did not differ between pond types, mortality rates were significantly greater in SWPs than in SNPs. The extremely low survival rate observed in SWPs might be explained by the considerably greater pollutant concentration in their sediment and/or by the presence of leeches, which were found exclusively inside SWPs. Implementation of management measures, such as regular draining/dredging during winter, might help to lower the pollutant concentration in the sediment and reduce the density of leeches inside SWPs, improving their suitability as habitat for amphibians.
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Affiliation(s)
- Antonin Conan
- CNRS, IPHC UMR 7178, Université de Strasbourg, 67000, Strasbourg, France.
- Collectivité Européenne d'Alsace, CERISE, Place du Quartier Blanc, 67964, Cedex 9, Strasbourg, France.
| | - Nathan Dehaut
- Collectivité Européenne d'Alsace, CERISE, Place du Quartier Blanc, 67964, Cedex 9, Strasbourg, France
| | - Manfred Enstipp
- CNRS, IPHC UMR 7178, Université de Strasbourg, 67000, Strasbourg, France
| | - Yves Handrich
- CNRS, IPHC UMR 7178, Université de Strasbourg, 67000, Strasbourg, France
| | - Jonathan Jumeau
- Collectivité Européenne d'Alsace, CERISE, Place du Quartier Blanc, 67964, Cedex 9, Strasbourg, France
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3
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Mi C, Huettmann F, Li X, Jiang Z, Du W, Sun B. Effects of climate and human activity on the current distribution of amphibians in China. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2022; 36:e13964. [PMID: 35674098 DOI: 10.1111/cobi.13964] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 05/22/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
In China, as elsewhere, amphibians are highly endangered. Anthropogenic environmental change has affected the distribution and population dynamics of species, and species distributions at a broad scale are strongly driven by climate and species' ability to disperse. Yet, current knowledge remains limited on how widespread human activity affects the distribution patterns of amphibians in China and whether this effect extends beyond climate. We compiled a relatively comprehensive database on the distribution of 196 amphibian species in China from the literature, public databases, and field data. We obtained 25,826 records on almost 50% of known species in China. To test how environmental factors and human activities influence the current distribution of amphibians (1960-1990), we used range filling, which is species realized ranges relative to their potential climate distribution. We used all species occurrence records to represent realized range and niche models to predict potential distribution range. To reduce uncertainty, we used 3 regression methods (beta regression, generalized boosted regression models, and random forest) to test the associations of species range filling with human activity, climate, topography, and range size. The results of the 3 approaches were consistent. At the species level, mean annual precipitation (climate) had the most effect on spatial distribution pattern of amphibians in China, followed by range size. Human activity ranked last. At the spatial level, mean annual precipitation remained the most important factor. Regions in southeastern of China that are currently moist supported the highest amphibian diversity, but were predicted to experience a decline in precipitation under climate change scenarios. Consequently, the distributions of amphibians will likely shift to the northwest in the future, which could affect future conservation efforts.
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Affiliation(s)
- Chunrong Mi
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Falk Huettmann
- EWHALE Lab, Department of Biology and Wildlife, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Xinhai Li
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Zhongwen Jiang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Weiguo Du
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Baojun Sun
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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4
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Vargová V, Balogová M, Figurová M, Bočkay A, Pipová N, Kaňuch P, Uhrin M. Skeletal morphology and fluctuating asymmetry of the European green toad, Bufotes viridis, in contrasting habitats. AMPHIBIA-REPTILIA 2022. [DOI: 10.1163/15685381-bja10111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Current environment changes and global amphibian decline suggest specific responses assuming urbanisation potential of the species. Amphibians are generally considered to be suitable bio-indicators of environmental health due to their ecological requirements. Therefore, fluctuating asymmetry (FA), a measure of small random deviations from bilateral symmetry is used for assessing morphological disruptions and parallelly the environment health. We measured the snout-vent length and lengths of five skeletal traits of limbs (humerus, radioulna, femur, tibiofibula, calcaneus) among the five European green toad populations from two contrasting habitats (urban and rural). We did not confirm our hypothesis that urban populations would exhibit higher level of FA as an indicator of higher environmental stress comparing to rural populations. However, asymmetry measured on forelimb bones was significantly larger than on hindlimbs. In addition, one urban population had significantly longer limbs comparing to the other sites.
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Affiliation(s)
- Viktória Vargová
- Department of Zoology, Institute of Biology and Ecology, P.J. Šafárik University, 040 01 Košice, Slovakia
| | - Monika Balogová
- Department of Zoology, Institute of Biology and Ecology, P.J. Šafárik University, 040 01 Košice, Slovakia
| | - Mária Figurová
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
| | - Andrej Bočkay
- Small Animal Clinic, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
| | - Natália Pipová
- Department of Animal Physiology, Institute of Biology and Ecology, P.J. Šafárik University, 040 01 Košice, Slovakia
| | - Peter Kaňuch
- Department of Zoology, Institute of Biology and Ecology, P.J. Šafárik University, 040 01 Košice, Slovakia
- Institute of Forest Ecology, Slovak Academy of Sciences, 960 01 Zvolen, Slovakia
| | - Marcel Uhrin
- Department of Zoology, Institute of Biology and Ecology, P.J. Šafárik University, 040 01 Košice, Slovakia
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5
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Donati GFA, Bolliger J, Psomas A, Maurer M, Bach PM. Reconciling cities with nature: Identifying local Blue-Green Infrastructure interventions for regional biodiversity enhancement. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115254. [PMID: 35576714 DOI: 10.1016/j.jenvman.2022.115254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Increasing urbanization degrades quantity, quality, and the functionality of spatial cohesion of natural areas essential to biodiversity and ecosystem functioning worldwide. The uncontrolled pace of building activity and the erosion of blue (i.e., aquatic) and green (i.e., terrestrial) landscape elements threaten existing habitat ranges and movability of wildlife. Local scale measures, such as nature-inspired engineered Blue-Green Infrastructure (BGI) are emerging mitigation solutions. Originally planned to promote sustainable stormwater management, adaptation to climate change and improved human livability in cities, such instruments offer interesting synergies for biodiversity in support of existing ecological infrastructure. BGI are especially appealing for globally declining amphibians, a rich and diverse vertebrate assemblage sensitive to urbanization. We integrated biological and highly resolved urban-rural land-cover data, ensemble models of habitat suitability, and connectivity models based on circuit theory to improve multi-scale and multi-species protection of core habitats and ecological corridors in the Swiss lowlands. Considering a broad spectrum of amphibian biodiversity, we identified distributions of amphibian biodiversity hotspots and four landscape elements essential to amphibian movability at the regional scale, namely i) forest edges, ii) wet-forest habitats, iii) soils with variable moisture and iv) riparian zones. Our work shows that cities can make a substantial contribution (e.g., up to 15% of urban space in the study area) to wider landscape habitat connectivity. We highlight the importance of planning BGI locally in strategic locations across urban and peri-urban areas to promote the permeability and availability of 'stepping stone' habitats in densely populated landscapes, essential to the maintenance of regional habitat connectivity and thereby enhancing biodiversity and ecosystem functioning.
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Affiliation(s)
- Giulia F A Donati
- Swiss Federal Institute of Aquatic Science & Technology (Eawag), Überlandstrasse 133, 8600, Dübendorf, Switzerland; WSL Swiss Federal Research Institute, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland.
| | - Janine Bolliger
- WSL Swiss Federal Research Institute, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland.
| | - Achilleas Psomas
- WSL Swiss Federal Research Institute, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland.
| | - Max Maurer
- Swiss Federal Institute of Aquatic Science & Technology (Eawag), Überlandstrasse 133, 8600, Dübendorf, Switzerland; Institute of Environmental Engineering, ETH Zürich, 8093, Switzerland.
| | - Peter M Bach
- Swiss Federal Institute of Aquatic Science & Technology (Eawag), Überlandstrasse 133, 8600, Dübendorf, Switzerland; Institute of Environmental Engineering, ETH Zürich, 8093, Switzerland.
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6
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The Effects of Livestock, Proximity to Trees, and Aquatic Characteristics on the Abundance of Ambystoma Altamirani within a Stream. J HERPETOL 2022. [DOI: 10.1670/20-118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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7
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Abstract
Pacific chorus frog (Pseudacris regilla) populations have persisted despite urban and rural development throughout the species’ range; yet it is possible that P. regilla, like other anurans with which it historically co-occurred, will become extirpated from cities and suburbs if urbanization intensifies as predicted. An improved understanding of the conditions that enable this species to persist in developed landscapes is needed to identify and conserve suitable habitats. We investigated species-habitat relationships for P. regilla in a mixed urban-rural landscape in southwestern British Columbia, Canada, to identify potential criteria for habitat suitability. We conducted repeat auditory surveys of chorusing males at 52 potential breeding wetlands and modeled occupancy at 26 of these sites using local and landscape variables representing competing hypotheses and spatial scales of influence. The models that best explained P. regilla occupancy included a combination of terrestrial habitat and connectivity factors and the presence of non-native predators. We found that the proportion of impervious cover within 250 m of a wetland had the strongest negative impact on occupancy. Our findings suggest that availability of terrestrial habitat adjacent to breeding sites is the primary driver of species presence in the developed landscape. Conservation efforts should seek to limit impervious cover to less than 20% within a 250-m buffer around breeding wetlands. Further, restored and created wetlands in urban and rural areas may be more likely to support P. regilla if they are designed with a seasonal hydroperiod that excludes non-native aquatic predators and are placed in an area of high pond density.
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Borzée A, Litvinchuk SN, Ri K, Andersen D, Nam TY, Jon GH, Man HS, Choe JS, Kwon S, Othman SN, Messenger K, Bae Y, Shin Y, Kim A, Maslova I, Luedtke J, Hobin L, Moores N, Seliger B, Glenk F, Jang Y. Update on Distribution and Conservation Status of Amphibians in the Democratic People's Republic of Korea: Conclusions Based on Field Surveys, Environmental Modelling, Molecular Analyses and Call Properties. Animals (Basel) 2021; 11:2057. [PMID: 34359183 PMCID: PMC8300379 DOI: 10.3390/ani11072057] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/25/2021] [Accepted: 07/01/2021] [Indexed: 11/17/2022] Open
Abstract
Determining the range, status, ecology and behaviour of species from areas where surveys and samplings are uncommon or difficult to conduct is a challenge, such as in the Democratic People's Republic of Korea (DPR Korea). Here, we used genetic samples, field surveys, call recordings, photographic identification and a literature review to estimate the presence, range and status of amphibians in the DPR Korea. From our combined results and based on the IUCN Red List categories and criteria, we were able to estimate the national threat levels for most species. Our results demonstrated the presence of 18 native species and the suspected presence of Karsenia koreana and two Onychodactylus species. We reported the first record for Rana uenoi in the vicinity of Pyongyang using molecular tools and similarly confirmed the presence of Dryophytes japonicus at the same location. Based on distribution and modelling, we can expect the contact zone between species within the Rana and Onychodactylus genera to be located along the Changbai Massif, a mountain range that marks a shift in ecoregions and acts as a barrier to dispersion. The species richness was higher in the lowlands and at lower latitudes, with such areas populated by up to 11 species, while more northern regions were characterised by species richness of about half of that value. The combination of ecological models and known threats resulted in the recommendation of ten species as threatened at the national level following the IUCN Red List categories and criteria. This high number of threatened species was anticipated based on the high threat level to amphibians in bordering nations and globally. While the ecology of species in the DPR Korea is still understudied, we argue that species relying on agricultural wetlands such as rice paddies are not under imminent threat due to the enduring presence of extensive agricultural landscapes with low rates of chemical use and mechanisation. The maintenance of such landscapes is a clear benefit to amphibian species, in contrast to more industrialised agricultural landscapes in neighbouring nations. In comparison, the status of species dependent on forested habitats is unclear and threat levels are likely to be higher because of deforestation, as in neighbouring nations.
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Affiliation(s)
- Amaël Borzée
- Laboratory of Animal Behaviour and Conservation, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd, Nanjing 210037, China; (Y.B.); (Y.S.)
- Amphibian Specialist Group, IUCN Species Survival Commission, Toronto, ON L5A, Canada; (J.L.); (L.H.)
| | - Spartak N. Litvinchuk
- Institute of Cytology, Russian Academy of Sciences, Tikhoretsky pr. 4, 194064 St. Petersburg, Russia;
- Department of Zoology and Physiology, Dagestan State University, Gadzhiyev str. 43-a, Makhachkala, 3367000 Dagestan, Russia
| | - Kyongsim Ri
- Department of International Economic Cooperation, Ministry of Land and Environment Protection, Pyongyang, Democratic People’s Republic of Korea
| | - Desiree Andersen
- Interdisciplinary Program of Eco Creative, Ewha Womans University, Seoul 03760, Korea; (D.A.); (S.K.); (S.N.O.); (A.K.)
| | - Tu Yong Nam
- Institute of Zoology, State Academy of Science, Daesong-dong, Daesong District, Pyongyang, Democratic People’s Republic of Korea
| | - Gwang Hyok Jon
- Department of Ecology, State Academy of Science, Daesong-dong, Daesong District, Pyongyang, Democratic People’s Republic of Korea
| | - Ho Song Man
- Department of Ecology, Life Science College, Kim Il Sung University, Ryongnam-dong, Daesong-dong, Daesong District, Pyongyang, Democratic People’s Republic of Korea
| | - Jong Sik Choe
- Department of Ecology, Life Science College, Kim Il Sung University, Ryongnam-dong, Daesong-dong, Daesong District, Pyongyang, Democratic People’s Republic of Korea
| | - Sera Kwon
- Interdisciplinary Program of Eco Creative, Ewha Womans University, Seoul 03760, Korea; (D.A.); (S.K.); (S.N.O.); (A.K.)
| | - Siti N. Othman
- Interdisciplinary Program of Eco Creative, Ewha Womans University, Seoul 03760, Korea; (D.A.); (S.K.); (S.N.O.); (A.K.)
| | - Kevin Messenger
- Herpetology and Applied Conservation Lab, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd, Nanjing 210037, China;
| | - Yoonhyuk Bae
- Laboratory of Animal Behaviour and Conservation, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd, Nanjing 210037, China; (Y.B.); (Y.S.)
- Interdisciplinary Program of Eco Creative, Ewha Womans University, Seoul 03760, Korea; (D.A.); (S.K.); (S.N.O.); (A.K.)
| | - Yucheol Shin
- Laboratory of Animal Behaviour and Conservation, College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Rd, Nanjing 210037, China; (Y.B.); (Y.S.)
| | - Ajoung Kim
- Interdisciplinary Program of Eco Creative, Ewha Womans University, Seoul 03760, Korea; (D.A.); (S.K.); (S.N.O.); (A.K.)
| | - Irina Maslova
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of Russian Academy of Sciences, 690022 Vladivostok, Russia;
| | - Jennifer Luedtke
- Amphibian Specialist Group, IUCN Species Survival Commission, Toronto, ON L5A, Canada; (J.L.); (L.H.)
- Re:wild, Austin, TX 78746, USA
| | - Louise Hobin
- Amphibian Specialist Group, IUCN Species Survival Commission, Toronto, ON L5A, Canada; (J.L.); (L.H.)
| | - Nial Moores
- Birds Korea, 101-1902, Hyundai I Park, Busan 48559, Korea;
| | | | - Felix Glenk
- Hanns Seidel Foundation, Seoul 04419, Korea; (B.S.); (F.G.)
| | - Yikweon Jang
- Department of Life Sciences and Division of EcoScience, Ewha Womans University, Seoul 03760, Korea;
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9
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Banaszak-Cibicka W, Dylewski Ł. Species and functional diversity - A better understanding of the impact of urbanization on bee communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 774:145729. [PMID: 33611011 DOI: 10.1016/j.scitotenv.2021.145729] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
We examined site patterns in bee species for diversity and functional diversity in urban, suburban and rural areas. We sampled bees from all three habitat types and compiled a database of functional traits for each species. While species diversity decreased with urbanization, as expected, components of functional diversity showed differences between urban and suburban habitats. Functional dispersion (FDis) increased significantly in suburban areas as compared to urban sites, while functional divergence (FDiv) and functional redundancy (Fred) were higher in urban areas. Functional richness (FRic) and evenness (FEven) were not affected by urbanization. Moreover, assemblages in highly urbanized environments have a substantially different functional composition. Solitary species, cleptoparasites, soil nesters, bees with trophic specialization, and those with a short flight period turned out to be more sensitive to urbanization changes. This study highlights the importance of examining functional diversity in assessing human-induced biodiversity loss and its impacts on ecosystem functioning in urbanized areas. These results have significant implications for improving our understanding of the mechanisms of suburban community ecology and conserving bees in urban habitats.
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Affiliation(s)
- Weronika Banaszak-Cibicka
- Department of Zoology, Poznań University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland.
| | - Łukasz Dylewski
- Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik, Poland.
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10
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Lambert MR, Donihue CM. Urban biodiversity management using evolutionary tools. Nat Ecol Evol 2020; 4:903-910. [PMID: 32393868 DOI: 10.1038/s41559-020-1193-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 03/20/2020] [Indexed: 01/06/2023]
Abstract
Cities are fully functioning ecosystems and are home to no-analogue communities of species that interact with each other and which are subject to novel urban stressors. As such, biodiversity can evolve in response to these new urban conditions, making urban species a moving target for conservation and management efforts. An evolving urban biodiversity necessitates integrating evolutionary insights into management for these efforts to be successful in a dynamic urban milieu. Here we present a framework for categorizing urban biodiversity from a management perspective. We then discuss a suite of example management tools and their potential evolutionary implications-both their opportunities for and potential consequence to management. Urban ecosystems are proliferating but, far from being ecological lost causes, they may provide unique insights and opportunities for biodiversity conservation. Determining how to achieve urban biodiversity priorities while managing pest species requires evolutionary thinking.
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Affiliation(s)
- Max R Lambert
- Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, CA, USA.
| | - Colin M Donihue
- Department of Biology, Washington University, St Louis, MO, USA
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11
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Oertli B, Parris KM. Review: Toward management of urban ponds for freshwater biodiversity. Ecosphere 2019. [DOI: 10.1002/ecs2.2810] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Beat Oertli
- HEPIA, HES‐SO University of Applied Sciences and Arts Western Switzerland 150 Route de Presinge 1254 Jussy‐Geneva Switzerland
| | - Kirsten M. Parris
- School of Ecosystem and Forest Sciences The University of Melbourne Parkville Victoria 3010 Australia
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12
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Anderson RB. Human traffic and habitat complexity are strong predictors for the distribution of a declining amphibian. PLoS One 2019; 14:e0213426. [PMID: 30845170 PMCID: PMC6405065 DOI: 10.1371/journal.pone.0213426] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 02/21/2019] [Indexed: 11/18/2022] Open
Abstract
Invasive species and habitat modification threaten California's native pond-breeding amphibians, including the federally threatened California Red-legged Frog (Rana draytonii). The relative contributions of invasive species, including the American Bullfrog (Lithobates catesbeianus), and of habitat changes to these declines are disputed. I conducted a field study over several years in central California to examine the presence/absence of these two species at 79 breeding ponds to determine the predictive role for occupancy of factors including vegetation, pond characteristics, and measures of human activity. I used a boosted regression tree approach to determine the relative value of each predictor variable. Increased measures of human activity, especially proximity to trails and roads, were the best predictors for the absence of California Red-legged Frogs and California Newts. Historical factors and habitat conditions were associated with the extent and spread of the American Bullfrog. The extent and complexity of aquatic macrophytes and pond surface area were good predictors for the presence of these and other amphibian species. Surprisingly, invasive species played a relatively small role in predicting pond occupancy by the native species. These findings can inform conservation and restoration efforts for California Red-legged Frogs, which apparently persist best in small vegetated ponds in areas of low human disturbance.
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Affiliation(s)
- Rachel B. Anderson
- Entomology Department, University of California, Davis, Davis, California, United States of America
- * E-mail:
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13
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Borzée A, Heo K, Jang Y. Relationship between agro-environmental variables and breeding Hylids in rice paddies. Sci Rep 2018; 8:8049. [PMID: 29795247 PMCID: PMC5966434 DOI: 10.1038/s41598-018-26222-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 05/04/2018] [Indexed: 11/09/2022] Open
Abstract
When natural wetlands are destroyed, many anuran species are forced to breed in alternative habitats such as rice paddies. We conducted field surveys for the endangered Dryophytes suweonensis and the numerous D. japonicus, from the beginning of the breeding season until two weeks after its peak. We recorded the presence, number of individuals and calling indices for each species. We hypothesized that D. japonicus would start breeding earlier than D. suweonensis, which would have originally been breeding solely in floodplains. The results of our analyses demonstrate that the rice cultivation phase was the most important factor in predicting the calling activities of both species. Furthermore, peak calling activities of both species matched the optimal hydroperiod in rice paddies. In addition, D. japonicus breeding behaviour was influenced by environmental variables such as temperature, whereas D. suweonensis seemed to require the planting of rice seedlings to initiate breeding. Therefore, as both Dryophytes species’ breeding activities are influenced by agro-environmental variables, this study highlights the importance of also preserving anthropogenically modified landscapes for the conservation of species.
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Affiliation(s)
- Amaël Borzée
- Laboratory of Behavioral Ecology and Evolution, School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea.,Department of Life Sciences and Division of EcoScience, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Kyongman Heo
- College of Natural Science, Sangmyung University, Seoul, 03016, Korea.,Department of Life Sciences and Division of EcoScience, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Yikweon Jang
- Department of Life Sciences and Division of EcoScience, Ewha Womans University, Seoul, 03760, Republic of Korea. .,Interdisciplinary Program of EcoCreative, Ewha Womans University, Seoul, 03760, Republic of Korea.
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14
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Clevenot L, Carré C, Pech P. A Review of the Factors That Determine Whether Stormwater Ponds Are Ecological Traps And/or High-Quality Breeding Sites for Amphibians. Front Ecol Evol 2018. [DOI: 10.3389/fevo.2018.00040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Holzer KA, Bayers RP, Nguyen TT, Lawler SP. Habitat value of cities and rice paddies for amphibians in rapidly urbanizing Vietnam. JOURNAL OF URBAN ECOLOGY 2017. [DOI: 10.1093/jue/juw007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Liao KH, Deng S, Tan PY. Blue-Green Infrastructure: New Frontier for Sustainable Urban Stormwater Management. ADVANCES IN 21ST CENTURY HUMAN SETTLEMENTS 2017. [DOI: 10.1007/978-981-10-4113-6_10] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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The sand lizard moves downtown – habitat analogues for an endangered species in a metropolitan area. Urban Ecosyst 2015. [DOI: 10.1007/s11252-015-0497-x] [Citation(s) in RCA: 9] [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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Holzer KA, Lawler SP. Introduced reed canary grass attracts and supports a common native amphibian. J Wildl Manage 2015. [DOI: 10.1002/jwmg.930] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Katie A. Holzer
- Department of Entomology and Nematology; University of California; Davis, One Shields Avenue Davis CA 95616 USA
| | - Sharon P. Lawler
- Department of Entomology and Nematology; University of California; Davis, One Shields Avenue Davis CA 95616 USA
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