1
|
Lindenmayer DB, Blanchard W, Evans MJ, Beggs R, Lavery T, Florance D, Crane C, Smith D, Siegrist A, Lang E, Scheele BC. Context dependency in interference competition among birds in an endangered woodland ecosystem. DIVERS DISTRIB 2023. [DOI: 10.1111/ddi.13680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Affiliation(s)
- D. B. Lindenmayer
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - W. Blanchard
- Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - M. J. Evans
- Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - R. Beggs
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - T. Lavery
- Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - D. Florance
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - C. Crane
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - D. Smith
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - A. Siegrist
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - E. Lang
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| | - B. C. Scheele
- Sustainable Farms, Fenner School of Environment & Society The Australian National University Canberra Australian Capital Territory Australia
| |
Collapse
|
2
|
Coddington CPJ, Cooper WJ, Mokross K, Luther DA. Forest structure predicts species richness and functional diversity in Amazonian mixed‐species bird flocks. Biotropica 2023. [DOI: 10.1111/btp.13201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- Charles P. J. Coddington
- Biology Department George Mason University Fairfax Virginia USA
- Biological Dynamics of Forest Fragments Project Instituto Nacional de Pesquisas da Amazônia Manaus Brazil
| | - W. Justin Cooper
- Biology Department George Mason University Fairfax Virginia USA
- Biological Dynamics of Forest Fragments Project Instituto Nacional de Pesquisas da Amazônia Manaus Brazil
| | - Karl Mokross
- Biological Dynamics of Forest Fragments Project Instituto Nacional de Pesquisas da Amazônia Manaus Brazil
- Departamento de Ecologia Universidade Estadual Paulista ‘Júlio de Mesquita Filho’ Rio Claro Brazil
- School of Renewable Natural Resources Louisiana State University Baton Rouge Louisiana USA
| | - David A. Luther
- Biology Department George Mason University Fairfax Virginia USA
- Biological Dynamics of Forest Fragments Project Instituto Nacional de Pesquisas da Amazônia Manaus Brazil
| |
Collapse
|
3
|
Lindenmayer DB, Blanchard W, Bowd E, Scheele BC, Foster C, Lavery T, McBurney L, Blair D. Rapid bird species recovery following high‐severity wildfire but in the absence of early successional specialists. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- David B. Lindenmayer
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - Wade Blanchard
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - Elle Bowd
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - Ben C. Scheele
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - Claire Foster
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - Tyrone Lavery
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - Lachlan McBurney
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| | - David Blair
- Fenner School of Environment and Society The Australian National University Acton Australian Capital Territory Australia
| |
Collapse
|
4
|
Hamann M, Shimada T, Duce S, Foster A, To ATY, Limpus C. Patterns of nesting behaviour and nesting success for green turtles at Raine Island, Australia. ENDANGER SPECIES RES 2022. [DOI: 10.3354/esr01175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
To understand how turtles use the nesting habitat at Raine Island across a nesting season, and how the turtles respond to the restoration of the island’s dune systems, we identified 534 nesting events for 39 green turtles Chelonia mydas across 2 breeding seasons using data derived from satellite tags. Tracked turtles laid between 4 and 10 clutches of eggs. Patterns of nesting success varied between individuals, within and between seasons. Nesting success was higher in 2018-19 (57%) than 2017-18 (45%), and in both years, nesting success was lowest between October and early January (<50%). In 2017-18, increased rainfall in January corresponded with increased nesting success (>50%). The density of female turtles ashore was lower in 2018-19, and likely explains higher nesting success in 2018-19 because competition for nest space was lower. In 2017-18, females had more attempts per clutch, and the attempts were around 90 min longer. Consequently, energy required to lay a clutch of eggs in 2017-18 was significantly higher than in 2018-19, highlighting potential costs of lower nesting success rates on reproductive output. The area of beach re-profiled as an intervention in 2014 and 2017 was a nesting hotspot in 2017-18. However, in 2018-19, the area was not used to the same extent, and the nesting hotspot occurred on the north-eastern unaltered beach. Collectively, the tracking of turtles across the whole nesting season enabled us to assess overall beach use and nesting site fidelity of green turtles at Raine Island. Results will aid future planning and management of beach restoration activities at turtle nesting sites.
Collapse
Affiliation(s)
- M Hamann
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - T Shimada
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
- Queensland Department of Environment and Science, Brisbane, Qld 4102, Australia
| | - S Duce
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - A Foster
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - ATY To
- College of Science and Engineering, James Cook University, Townsville, Qld 4811, Australia
| | - C Limpus
- Queensland Department of Environment and Science, Brisbane, Qld 4102, Australia
| |
Collapse
|
5
|
Bowd E, Blanchard W, McBurney L, Lindenmayer D. Direct and indirect disturbance impacts on forest biodiversity. Ecosphere 2021. [DOI: 10.1002/ecs2.3823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Elle Bowd
- Fenner School of Environment and Society The Australian National University Canberra Australian Capital Territory 2601 Australia
| | - Wade Blanchard
- Fenner School of Environment and Society The Australian National University Canberra Australian Capital Territory 2601 Australia
| | - Lachlan McBurney
- Fenner School of Environment and Society The Australian National University Canberra Australian Capital Territory 2601 Australia
| | - David Lindenmayer
- Fenner School of Environment and Society The Australian National University Canberra Australian Capital Territory 2601 Australia
| |
Collapse
|
6
|
Avian ecology and community structure across elevation gradients: The importance of high latitude temperate mountain habitats for conserving biodiversity in the Americas. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
7
|
Gómez C, Tenorio EA, Cadena CD. Change in avian functional fingerprints of a Neotropical montane forest over 100 years as an indicator of ecosystem integrity. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2021; 35:1552-1563. [PMID: 33565119 DOI: 10.1111/cobi.13714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/09/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Ecologically relevant traits of organisms in an assemblage determine an ecosystem's functional fingerprint (i.e., the shape, size, and position of multidimensional trait space). Quantifying changes in functional fingerprints can therefore provide information about the effects of diversity loss or gain through time on ecosystem condition and is a promising approach to monitoring ecological integrity. This, however, is seldom possible owing to limitations in historical surveys and a lack of data on organismal traits, particularly in diverse tropical regions. Using data from detailed bird surveys from 4 periods across more than a century, and morphological and ecological traits of 233 species, we quantified changes in the avian functional fingerprint of a tropical montane forest in the Andes of Colombia. We found that 78% of the variation in functional space, regardless of period, was described by 3 major axes summarizing body size, dispersal ability (indexed by wing shape), and habitat breadth. Changes in species composition significantly altered the functional fingerprint of the assemblage and functional richness and dispersion decreased 35-60%. Owing to species extirpations and to novel additions to the assemblage, functional space decreased over time, but at least 11% of its volume in the 2010s extended to areas of functional space that were unoccupied in the 1910s. The assemblage now includes fewer large-sized species, more species with greater dispersal ability, and fewer habitat specialists. Extirpated species had high functional uniqueness and distinctiveness, resulting in large reductions in functional richness and dispersion after their loss, which implies important consequences for ecosystem integrity. Conservation efforts aimed at maintaining ecosystem function must move beyond seeking to sustain species numbers to designing complementary strategies for the maintenance of ecological function by identifying and conserving species with traits conferring high vulnerability such as large body size, poor dispersal ability, and greater habitat specialization. Article impact statement: Changes in functional fingerprints provide a means to quantify the integrity of ecological assemblages affected by diversity loss or gain.
Collapse
Affiliation(s)
- Camila Gómez
- Cornell Lab of Ornithology, 159 Sapsucker Woods Rd, Ithaca, NY, 14850, U.S.A
- SELVA: Investigación para la Conservación en el Neotropico, Bogotá, Colombia
| | - Elkin A Tenorio
- The Graduate Center, City University of New York, 365 5th Ave, New York, NY, 10016, U.S.A
- Department of Ornithology, American Museum of Natural History, Central Park West at 79th Street, New York, NY, 10024, U.S.A
- Instituto de Investigación de Recourses Biológicos Alexander von Humboldt, Bogotá, Colombia
| | - Carlos Daniel Cadena
- Departamento de Ciencias Biológicas, Laboratorio de Biología Evolutiva de Vertebrados, Universidad de Los Andes, Bogotá, Colombia
| |
Collapse
|
8
|
Bayraktarov E, Correa DF, Suarez‐Castro AF, Garnett ST, Macgregor NA, Possingham HP, Tulloch AIT. Variable effects of protected areas on long‐term multispecies trends for Australia's imperiled birds. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Elisa Bayraktarov
- Centre for Biodiversity and Conservation Science The University of Queensland St. Lucia, Queensland Australia
| | - Diego F. Correa
- Centre for Biodiversity and Conservation Science The University of Queensland St. Lucia, Queensland Australia
| | - Andrés F. Suarez‐Castro
- Centre for Biodiversity and Conservation Science The University of Queensland St. Lucia, Queensland Australia
| | - Stephen T. Garnett
- Research Institute for the Environment and Livelihoods Charles Darwin University Casuarina Northern Territory Australia
| | - Nicholas A. Macgregor
- Parks Australia Canberra Australian Capital Territory Australia
- Durrell Institute of Conservation and Ecology (DICE) University of Kent Canterbury UK
| | - Hugh P. Possingham
- Centre for Biodiversity and Conservation Science The University of Queensland St. Lucia, Queensland Australia
- The Nature Conservancy Arlington Virginia USA
| | - Ayesha I. T. Tulloch
- Centre for Biodiversity and Conservation Science The University of Queensland St. Lucia, Queensland Australia
- School of Life and Environmental Sciences The University of Sydney Camperdown New South Wales Australia
| |
Collapse
|
9
|
Arraut EM, Walls SW, Macdonald DW, Kenward RE. Anticipation of common buzzard population patterns in the changing UK landscape. Proc Biol Sci 2021; 288:20210993. [PMID: 34102893 PMCID: PMC8188000 DOI: 10.1098/rspb.2021.0993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Harmonious coexistence between humans, other animals and ecosystem services they support is a complex issue, typically impacted by landscape change, which affects animal distribution and abundance. In the last 30 years, afforestation on grasslands across Great Britain has been increasing, motivated by socio-economic reasons and climate change mitigation. Beyond expected benefits, an obvious question is what are the consequences for wider biodiversity of this scale of landscape change. Here, we explore the impact of such change on the expanding population of common buzzards Buteo buteo, a raptor with a history of human-induced setbacks. Using Resource-Area-Dependence Analysis (RADA), with which we estimated individuals' resource needs using 10-day radio-tracking sessions and the 1990s Land Cover Map of GB, and agent-based modelling, we predict that buzzards in our study area in lowland UK had fully recovered (to 2.2 ind km-2) by 1995. We also anticipate that the conversion of 30%, 60% and 90% of economically viable meadow into woodland would reduce buzzard abundance nonlinearly by 15%, 38% and 74%, respectively. The same approach used here could allow for cost-effective anticipation of other animals' population patterns in changing landscapes, thus helping to harmonize economy, landscape change and biodiversity.
Collapse
Affiliation(s)
- Eduardo M Arraut
- Department of Hydric Resources and Environment, Civil Engineering Division, Aeronautics Institute of Technology, Praça Marechal Eduardo Gomes 50, 12228-900 São José dos Campos, SP, Brazil.,Wildlife Conservation Research Unit, Zoology Department, Oxford University, The Recanati-Kaplan Centre, Tubney House, Abingdon Road, Tubney, Abingdon OX13 5QL, UK
| | - Sean W Walls
- Lotek-UK, The Old Courts, Worgret Road, Wareham, Dorset BH20 4PL, UK
| | - David W Macdonald
- Wildlife Conservation Research Unit, Zoology Department, Oxford University, The Recanati-Kaplan Centre, Tubney House, Abingdon Road, Tubney, Abingdon OX13 5QL, UK
| | - Robert E Kenward
- United Kingdom Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, UK
| |
Collapse
|
10
|
Altamirano TA, de Zwaan DR, Ibarra JT, Wilson S, Martin K. Treeline ecotones shape the distribution of avian species richness and functional diversity in south temperate mountains. Sci Rep 2020; 10:18428. [PMID: 33116173 PMCID: PMC7595238 DOI: 10.1038/s41598-020-75470-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 10/14/2020] [Indexed: 11/24/2022] Open
Abstract
Mountains produce distinct environmental gradients that may constrain or facilitate both the presence of avian species and/or specific combinations of functional traits. We addressed species richness and functional diversity to understand the relative importance of habitat structure and elevation in shaping avian diversity patterns in the south temperate Andes, Chile. During 2010–2018, we conducted 2202 point-counts in four mountain habitats (successional montane forest, old-growth montane forest, subalpine, and alpine) from 211 to 1,768 m in elevation and assembled trait data associated with resource use for each species to estimate species richness and functional diversity and turnover. We detected 74 species. Alpine specialists included 16 species (22%) occurring only above treeline with a mean elevational range of 298 m, while bird communities below treeline (78%) occupied a mean elevational range of 1,081 m. Treeline was an inflection line, above which species composition changed by 91% and there was a greater turnover in functional traits (2–3 times greater than communities below treeline). Alpine birds were almost exclusively migratory, inhabiting a restricted elevational range, and breeding in rock cavities. We conclude that elevation and habitat heterogeneity structure avian trait distributions and community composition, with a diverse ecotonal sub-alpine and a distinct alpine community.
Collapse
Affiliation(s)
- Tomás A Altamirano
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada.
| | - Devin R de Zwaan
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada
| | - José Tomás Ibarra
- ECOS (Ecosystem-Complexity-Society) Laboratory, Center for Local Development, Education and Interculturality, Villarrica Campus, Pontificia Universidad Católica de Chile, Villarrica, La Araucanía Region, Chile.,Millennium Nucleus Center for the Socioeconomic Impact of Environmental Policies (CESIEP) & Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Scott Wilson
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada.,Environment and Climate Change Canada, Pacific Wildlife Research Centre, Vancouver, BC, Canada.,Department of Biology, Carleton University, 1125 Colonel by Drive, Ottawa, ON, K1S 5B6, Canada
| | - Kathy Martin
- Department of Forest and Conservation Sciences, University of British Columbia, Vancouver, BC, Canada.,Environment and Climate Change Canada, Pacific Wildlife Research Centre, Vancouver, BC, Canada
| |
Collapse
|
11
|
Ikin K, Barton PS, Blanchard W, Crane M, Stein J, Lindenmayer DB. Avian functional responses to landscape recovery. Proc Biol Sci 2020; 286:20190114. [PMID: 30991926 DOI: 10.1098/rspb.2019.0114] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Restoring native vegetation in agricultural landscapes can reverse biodiversity declines via species gains. Depending on whether the traits of colonizers are complementary or redundant to the assemblage, species gains can increase the efficiency or stability of ecological functions, yet detecting these processes is not straightforward. We propose a new conceptual model to identify potential changes to complementarity and redundancy in response to landscape change via relative changes in taxonomic and functional richness. We applied our model to a 14-year study of birds across an extensive agricultural region. We found compelling evidence that high levels of landscape-scale tree cover and patch-scale restoration were significant determinants of functional change in the overall bird assemblage. This was true for every one of the six traits investigated individually, indicating increased trait-specific functional complementarity and redundancy in the assemblage. Applying our conceptual model to species diversity data provided new insights into how the return of vertebrates to restored landscapes may affect ecological function.
Collapse
Affiliation(s)
- Karen Ikin
- 1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia.,2 ARC Centre of Excellence for Environmental Decisions, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia
| | - Philip S Barton
- 1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia
| | - Wade Blanchard
- 1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia
| | - Mason Crane
- 1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia.,3 Sustainable Farms, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia
| | - John Stein
- 1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia
| | - David B Lindenmayer
- 1 Fenner School of Environment and Society, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia.,2 ARC Centre of Excellence for Environmental Decisions, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia.,3 Sustainable Farms, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia.,4 National Environmental Science Program Threatened Species Hub, The Australian National University , Frank Fenner Building 141, Linnaeus Way, Acton ACT 2601 , Australia
| |
Collapse
|