17 Works

Conservation and development investments in the Corridor Ankeniheny-Zahamena (CAZ), Madagascar, 2007-2014

K. Tabor, A. Rasolohery, S. Ramanahadray & A. Rambeloson
Conservation and development investments in the Ankeniheny-Zahamena Corridor (CAZ) includes information on investment type, implementing agency, and timing and location of investments. Data were collected as part of a project funded under the Ecosystem Services for Poverty Alleviation (ESPA) programme. Work package 4, 'Can Paying 4 Global Ecosystem Services values reduce poverty?' (P4GES) project

Data from: A standardized assessment of forest mammal communities reveals consistent functional composition and vulnerability across the tropics

Francesco Rovero, Jorge Ahumada, Patrick Jansen, Douglas Sheil, Patricia Alvarez, Kelly Boekee, Santiago Espinosa, Marcela Lima, Emanuel Martin, Timothy O’Brien, Julia Salvador, Fernanda Santos, Melissa Rosa, Alexander Zvoleff, Chris Sutherland & Simone Tenan
Understanding global diversity patterns has benefitted from a focus on functional traits and how they relate to variation in environmental conditions among assemblages. Distant communities in similar environments often share characteristics, and for tropical forest mammals, this functional trait convergence has been demonstrated at coarse scales (110-200 km resolution), but less is known about how these patterns manifest at fine scales, where local processes (e.g., habitat features and anthropogenic activities) and biotic interactions occur. Here,...

Data from: Phylogenomic reconstruction of sportive lemurs (genus Lepilemur) recovered from mitogenomes with inferences for Madagascar biogeography

Runhua Lei, Cynthia L. Frasier, Melissa T.R. Hawkins, Shannon E. Engberg, Carolyn A. Bailey, Steig E. Johnson, Adam T. McLain, Colin P. Groves, George H. Perry, Stephen D. Nash, Russell A. Mittermeier &
The family Lepilemuridae includes 26 species of sportive lemurs, most of which were recently described. The cryptic morphological differences confounded taxonomy until recent molecular studies; however, some species’ boundaries remain uncertain. To better understand the genus Lepilemur, we analyzed 35 complete mitochondrial genomes representing all recognized 26 sportive lemur taxa and estimated divergence dates. With our dataset we recovered 25 reciprocally monophyletic lineages, as well as an admixed clade containing Lepilemur mittermeieri and Lepilemur dorsalis....

Snapshot of the Carbon Dioxide Removal certification and standards ecosystem (2021–2022)

Stephanie Arcusa & Starry Sprenkle-Hyppolite
Carbon Dioxide Removal (CDR) will be necessary to fulfil the hundreds of pledges to reach net-zero by 2050. As with any industry, standard methodologies and certification are crucial to guarantee successful and reliable activities. However, buyers and policymakers currently face challenges in evaluating the ecosystem of CDR certification. The issue is not with CDR, nor with individual certifications – some of which may be very robust – but with the lack of transparency in the...

Unifying community detection across scales from genomes to landscapes

Andrii Zaiats, Stephanie F. Hudon, Anna Roser, Anand Roopsind, Cristina Barber, Brecken C. Robb, Britt A. Pendleton, Meghan J. Camp, Patrick E. Clark, Merry M. Davidson, Jonas Frankel-Bricker, Marcella Fremgen-Tarantino, Jennifer Sorensen Forbey, Eric J. Hayden, Lora A. Richards, Olivia K. Rodrigues & T. Trevor Caughlin
Biodiversity science encompasses multiple disciplines and biological scales from molecules to landscapes. Nevertheless, biodiversity data are often analyzed separately with discipline-specific methodologies, constraining resulting inferences to a single scale. To overcome this, we present a topic modeling framework to analyze community composition in cross-disciplinary datasets, including those generated from metagenomics, metabolomics, field ecology, and remote sensing. Using topic models, we demonstrate how community detection in different datasets can inform the conservation of interacting plants and...

Data from: Removing climbers more than doubles tree growth and biomass in degraded tropical forests

Catherine Finlayson, Anand Roopsind, Bronson. W. Griscom, David. P. Edwards & Robert. P. Freckleton
Huge areas of tropical forests are degraded, reducing their biodiversity, carbon, and timber value. The recovery of these degraded forests can be significantly inhibited by climbing plants such as lianas. Removal of super-abundant climbers thus represents a restoration action with huge potential for application across the tropics. While experimental studies largely report positive impacts of climber removal on tree growth and biomass accumulation, the efficacy of climber removal varies widely, with high uncertainty as to...

Data and code for: Human density modulates spatial associations among tropical forest terrestrial mammal species

Daniel Gorczynski, Chia Hsieh, Jorge Ahumada, Emmanuel Akampurira, Mahandry Hugues Andrianarisoa, Santiago Espinosa, Steig Johnson, Charles Kayijamahe, Marcela Guimaraes Moreira Lima, Badru Mugerwa, Francesco Rovero, Julia Salvador, Fernanda Santos, Douglas Sheil, Eustrate Uzabaho & Lydia Beaudrot
The spatial aggregation of species pairs often increases with the ecological similarity of the species involved. However, the way in which environmental conditions and anthropogenic activity affect the relationship between spatial aggregation and ecological similarity remains unknown despite the potential for spatial associations to affect species interactions, ecosystem function, and extinction risk. Given that human disturbance has been shown to both increase and decrease spatial associations among species pairs, ecological similarity may have a role...

Data from: Bioclimatic envelope models predict a decrease in tropical forest carbon stocks with climate change in Madagascar

Ghislain Vieilledent, Oliver Gardi, Clovis Grinand, Christian Burren, Mamitiana Andriamanjato, Christian Camara, Charlie J. Gardner, Leah Glass, Andriambolantsoa Rasolohery, Harifidy Ratsimba, Valéry Gond & Jean-Roger Rakotoarijaona
1. Recent studies have underlined the importance of climatic variables in determining tree height and biomass in tropical forests. Nonetheless, the effects of climate on tropical forest carbon stocks remain uncertain. In particular, the application of process-based dynamic global vegetation models have led to contrasting conclusions regarding the potential impact of climate change on tropical forest carbon storage. 2. Using a correlative approach based on a bioclimatic envelope model and data from 1771 forest plots...

Very high resolution derived land cover/use classifications for the Corridor Ankeniheny-Zahamena (CAZ), Madagascar

N. Horning & J. Hewson
The products capture current land use/cover for four areas of interest in Corridor Ankeniheny Zahamena (CAZ) generated based on very high resolution imagery (SPOT 6). Field-based training and validation data were used and supervised classifications created using Random Forest classifier.

Data and code: Global and regional ecological boundaries explain abrupt spatial discontinuities in avian frugivory interactions

Lucas P. Martins, Daniel B. Stouffer, Pedro G. Blendinger, Katrin Böhning-Gaese, Galo Buitrón-Jurado, Marta Correia, José Miguel Costa, D. Matthias Dehling, Camila I. Donatti, Carine Emer, Mauro Galetti, Ruben Heleno, Pedro Jordano, Ícaro Menezes, José Carlos Morante-Filho, Marcia C. Muñoz, Eike Lena Neuschulz, Marco Aurélio Pizo, Marta Quitián, Roman A. Ruggera, Francisco Saavedra, Vinicio Santillán, Virginia Sanz D’Angelo, Matthias Schleuning, Luís Pascoal Da Silva … & Jason M. Tylianakis
Species interactions can propagate disturbances across space via direct and indirect effects, potentially connecting species at a global scale. However, ecological and biogeographic boundaries may mitigate this spread by demarcating the limits of ecological networks. We tested whether large-scale ecological boundaries (ecoregions and biomes) and human disturbance gradients increase dissimilarity among plant-frugivore networks, while accounting for background spatial and elevational gradients and differences in network sampling. We assessed network dissimilarity patterns over a broad spatial...

Annual Forest Loss at 15m resolution in the Corridor Ankeniheny-Zahamena (CAZ), Madagascar, 2006-2014

C.A. Cano
The dataset delineates annual forest loss in the CAZ digitized from annual 15 metre resolution LANDSAT imagery. This dataset creates a baseline for possible long-term, near real-time monitoring of encroachment and illegal logging within the Ankeniheny-Zahamena Corridor (CAZ), Madagascar. This analysis includes a summary of suspected encroachment and illegal logging from June 2006 to December 2010 within the "protected area," which consists of zones such as priority for conservation, sustainable use, and controlled settlements.

Data from: Biogeography of shell morphology in over-exploited shellfish reveals adaptive tradeoffs on human-inhabited islands and incipient selectively driven lineage bifurcation

Ashley Hamilton, Jason Selwyn, Rebecca Hamner, Hokuala Johnson, Tia Brown, Shauna Springer & Christopher Bird
Aim: To identify potentially human-mediated biogeographic patterns in selection and adaptive tradeoffs affecting the evolution an over-exploited shellfish. Location: Hawaiian Archipelago Taxon: Mollusca, Gastropoda, Patellagastropoda, Nacellidae, Cellana exarata, ‘Opihi makaiauli Methods: We surveyed phenotypic characters associated with temperature and predation avoidance across the entire species range and tested for differences in the relationship between these characters and latitude, on islands with and without humans. Results: Among all limpets surveyed, there was a bimodal distribution in...

Integrating climate adaptation and biodiversity conservation in the global ocean

Derek Tittensor, Maria Beger, Kristina Boerder, Daniel Boyce, Rachel Cavanagh, Aurelie Cosandey-Godin, Guillermo Crespo, Daniel Dunn, Wildan Ghiffary, Susie Grant, Lee Hannah, Pat Halpin, Mike Harfoot, Susan Heaslip, Nicholas Jeffery, Naomi Kingston, Heike Lotze, Jennifer McGowan, Elizabeth McLeod, Chris McOwen, Bethan O'Leary, Laurenne Schiller, Ryan Stanley, Maxine Westhead, Kristen Wilson … & Boris Worm
The impacts of climate change and the socioecological challenges they present are ubiquitous and increasingly severe. Practical efforts to operationalize climate-responsive design and management in the global network of marine protected areas (MPAs) are required to ensure long-term effectiveness for safeguarding marine biodiversity and ecosystem services. Here, we review progress in integrating climate change adaptation into MPA design and management and provide eight recommendations to expedite this process. Climate-smart management objectives should become the default...

Data from: Global hotspots for coastal ecosystem-based adaptation

Holly P. Jones, Barry A. Nickel, Tanja Srebotnjak, Will Turner, Mariano Gonzalez-Roglich, Erika Zavaleta & David G. Hole
Helping the world’s coastal communities adapt to climate change impacts requires evaluating the vulnerability of coastal communities and assessing adaptation options. This includes understanding the potential for ‘natural’ infrastructure (ecosystems and the biodiversity that underpins them) to reduce communities’ vulnerability, alongside more traditional ‘hard’ infrastructure approaches. Here we present a spatially explicit global evaluation of the vulnerability of coastal-dwelling human populations to key climate change exposures and explore the potential for coastal ecosystems to help...

Tropical mammal functional diversity increases with productivity but decreases with anthropogenic disturbance

Daniel Gorczynski, Chia Hsieh, Jadelys Tonos Luciano, Jorge Ahumada, Santiago Espinosa, Steig Johnson, Francesco Rovero, Fernanda Santos, Mahandry Hugues Andrianarisoa, Johanna Hurtado Astaiza, Patrick A. Jansen, Charles Kayijamahe, Marcela Guimarães Moreira Lima, Julia Salvador & Lydia Beaudrot
A variety of factors can affect the biodiversity of tropical mammal communities, but their relative importance and directionality remain uncertain. Previous global investigations of mammal functional diversity have relied on range maps instead of observational data to determine community composition. We test the effects of species pools, habitat heterogeneity, primary productivity and human disturbance on the functional diversity (dispersion and richness) of mammal communities using the largest standardized tropical forest camera trap monitoring system, the...

Data from: Combining fish and benthic communities into multiple regimes reveals complex reef dynamics

Mary K. Donovan, Alan M. Friedlander, Joey Lecky, Jean-Baptiste Jouffray, Gareth J. Williams, Lisa M. Wedding, Larry B. Crowder, Ashley L. Erickson, Nick A. J. Graham, Jamison M. Gove, Carrie V. Kappel, Kendra Karr, John N. Kittinger, Albert V. Norström, Magnus Nyström, Kirsten L. L. Oleson, Kostantinos A. Stamoulis, Crow White, Ivor D. Williams & Kimberly A. Selkoe
Coral reefs worldwide face an uncertain future with many reefs reported to transition from being dominated by corals to macroalgae. However, given the complexity and diversity of the ecosystem, research on how regimes vary spatially and temporally is needed. Reef regimes are most often characterised by their benthic components; however, complex dynamics are associated with losses and gains in both fish and benthic assemblages. To capture this complexity, we synthesised 3,345 surveys from Hawai‘i to...

Snapshot of the Carbon Dioxide Removal certification and standards ecosystem (2021–2022)

Stephanie Arcusa & Starry Sprenkle-Hyppolite
Carbon Dioxide Removal (CDR) will be necessary to fulfil the hundreds of pledges to reach net-zero by 2050. As with any industry, standard methodologies and certification are crucial to guarantee successful and reliable activities. However, buyers and policymakers currently face challenges in evaluating the ecosystem of CDR certification. The issue is not with CDR, nor with individual certifications – some of which may be very robust – but with the lack of transparency in the...

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