Preprints

Filtering by Subject: Biodiversity

Puma space use and dispersal in tropical biodiversity hotspots: bridging a gap to connect individuals to populations

Bernardo Brandão Niebuhr, Sandra Maria Cintra Cavalcanti, Ermeson A. Vilalba, et al.

Published: 2024-01-25
Subjects: Behavior and Ethology, Biodiversity, Ecology and Evolutionary Biology, Zoology

Assessing residency and dispersal behavior of apex predators and its consequences for landscape connectivity is of paramount importance for understanding population- and ecosystem- effects of anthropogenic land use change. However, basic information on animal space use is still lacking, particularly in the Tropics. Here we synthesize ranging and dispersal ecological information on pumas (Puma [...]

Distribution, Abundance and Status of At-Risk Birds at a Six-Acre Site Within the Upper Boileau Biodiversity Reserve, Québec: A Year-Long Research Study

Jimmy Videle

Published: 2024-01-22
Subjects: Biodiversity, Life Sciences, Ornithology, Terrestrial and Aquatic Ecology

Understanding the distribution, abundance and status of at-risk birds in any area where human impact is low is an imperative in understanding the larger ecological situation. Birds have been widely seen as reliable indicators of ecological health and there have been significant population declines in North America, especially among migratory aerial insectivores, and are escalading rapidly. As a [...]

Opportunity Begets Opportunity to Drive Macroevolutionary Dynamics of a Diverse Lizard Radiation

Laura Alencar, Orlando Schwery, Meaghan R. Gade, et al.

Published: 2024-01-18
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences

Evolution proceeds unevenly across the tree of life, with some lineages accumulating diversity more rapidly than others. Explaining this disparity is challenging as similar evolutionary triggers often do not result in analogous shifts across the tree, and similar shifts may reflect different evolutionary triggers. We used a combination of approaches to directly consider such context-dependency [...]

A big data and machine learning approach for monitoring the condition of ecosystems

Miguel Equihua, Octavio Pérez-Maqueo, Julián Equihua, et al.

Published: 2024-01-16
Subjects: Applied Statistics, Biodiversity, Bioinformatics, Earth Sciences, Ecology and Evolutionary Biology, Environmental Sciences, Forest Biology, Forest Sciences, Life Sciences, Other Ecology and Evolutionary Biology, Physical Sciences and Mathematics, Statistical Methodology, Statistical Models, Terrestrial and Aquatic Ecology

Ecosystems are highly valuable as a source of goods and services and as a heritage for future generations. Knowing their condition is extremely important for all management and conservation activities and public policies. Until now, the evaluation of ecosystem condition has been unsatisfactory and thus lacks practical implementation for most countries. We propose that ecosystem integrity is a [...]

Meta-analysis reveals that the effects of precipitation change on soil and litter fauna in forests depend on body size

Philip Martin, Leonora Fisher, Leticia Pérez-Izquierdo, et al.

Published: 2024-01-11
Subjects: Biodiversity, Ecology and Evolutionary Biology, Terrestrial and Aquatic Ecology

Anthropogenic climate change is altering precipitation regimes at a global scale. While precipitation changes have been linked to changes in the abundance and diversity of soil and litter invertebrate fauna in forests, general trends have remained elusive due to mixed results from primary studies. We used a meta-analysis based on 352 comparisons from 30 primary studies to address associated [...]

Smart Solutions, Big Returns: Closing Biodiversity Knowledge Gaps with Digital Agriculture

Ruben Remelgado, Vítězslav Moudrý, Elisa Padulosi, et al.

Published: 2023-12-23
Subjects: Agriculture, Biodiversity

The global expansion and intensification of food production threaten biodiversity, vital for ecosystem services and food security. The Kunming-Montreal Global Biodiversity Framework (GBF) advocates drastic changes in agricultural management, yet translating recommendations into local action is challenging. Biodiversity-friendly practices carry highly uncertain benefits, dissuading their adoption. [...]

A structured approach for building multi-community state-and-transition models to support conservation planning

Megan Kate Good, Libby Rumpff, Hannah S. Fraser, et al.

Published: 2023-12-20
Subjects: Biodiversity, Ecology and Evolutionary Biology

Global declines in ecosystem extent and condition mean there is an increasing demand for recovery and conservation plans. Conservation plans for ecological communities require a management framework with measurable, time-bound objectives. Efficient and structured processes that facilitate timely and comparable conservation plans are essential, especially where resources are constrained.  We [...]

Ecosystem functions and services provided by dung beetles: a global meta-analysis

Fevziye Hasan, Louis A Schipper, Kiri Joy Wallace, et al.

Published: 2023-12-19
Subjects: Agriculture, Biodiversity, Ecology and Evolutionary Biology, Entomology, Life Sciences

Dung beetles are known to carry out a range of ecosystem functions such as secondary seed dispersal, bioturbation, nutrient cycling, plant growth, pest and parasite control, and trophic regulation, many of which support key ecosystem services. Despite the globally purported significance of this group of insects for ecosystem functioning, there has been no quantitative synthesis to establish the [...]

Complementando inventarios biológicos con datos abiertos a través de un método semiautomatizado

Sergio A. Cabrera-Cruz, José Luis Aguilar López, Rafael Villegas Patraca

Published: 2023-12-13
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences

Introducción: Los muestreos directos constituyen la mejor manera de documentar la riqueza biológica de un lugar, pero pueden verse limitados por diversas circunstancias. Nos preguntamos si la riqueza de especies documentada en campo puede ser complementada con datos de plataformas digitales de biodiversidad. Objetivo: Analizar si los datos de ocurrencia de especies disponibles en la Global [...]

Bird species’ centrality in seed-dispersal networks varies within climatic niches

Gabriel M. Moulatlet, Wesley Dáttilo, Daniel Kissling, et al.

Published: 2023-12-12
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences

Understanding how the functional role of species within seed-dispersal networks varies across geographical and climatic gradients can reveal the mechanisms driving network organization. Using data for 157 bird species from all continents, we evaluated the variation of species’ centrality within local networks across species’ climatic niches (occupied climatic conditions) and in response to [...]

A user-friendly AI workflow for customised wildlife-image classification

Barry W. Brook, Jessie C. Buettel, Zach Aandahl

Published: 2023-12-12
Subjects: Biodiversity, Ecology and Evolutionary Biology, Life Sciences, Zoology

Monitoring wildlife is crucial for making informed conservation and land-management decisions. Remotely triggered cameras are widely used for this, but the resulting 'big data' are laborious to process. Artificial intelligence (AI) offers a solution to this bottleneck, but it has been challenging for ecologists and practitioners to tailor current approaches to their specific use cases. Generic, [...]

The world was our oyster: Records reveal the vast historical extent of European oyster reef ecosystems

Ruth H. Thurstan, Hannah McCormick, Joanne Preston, et al.

Published: 2023-12-07
Subjects: Biodiversity, Marine Biology, Terrestrial and Aquatic Ecology

Anthropogenic activities have impacted marine ecosystems at extraordinary scales. Biogenic reef ecosystems built by the European flat oyster (Ostrea edulis) typically declined prior to scientific monitoring. Collating >1,600 records published over 350 years, we created a highly resolved (10km2) map of historical oyster reef presence across its biogeographic range, including documenting abundant [...]

Historical dataset details the distribution, extent and form of lost Ostrea edulis reef ecosystems.

Ruth H. Thurstan, Hannah McCormick, Joanne Preston, et al.

Published: 2023-12-07
Subjects: Aquaculture and Fisheries Life Sciences, Biodiversity, Marine Biology, Terrestrial and Aquatic Ecology

Ocean ecosystems have been subjected to anthropogenic influences for centuries, but the scale of past ecosystem changes is often unknown. For centuries, the European flat oyster (Ostrea edulis), an ecosystem engineer providing biogenic reef habitats, was a culturally and economically significant source of food and trade. These reef habitats are now functionally extinct, and almost no memory of [...]

Natural selection is less efficient at species range edges

Chloé Schmidt, Jussi Mäkinen, Jean-Philippe Lessard, et al.

Published: 2023-12-06
Subjects: Biodiversity, Ecology and Evolutionary Biology, Evolution, Life Sciences

Changing species distributions due to global change underscore a pressing need to better understand range limits. However, our knowledge of general determinants of range limits remains poor despite over a century of work. Theoretical models demonstrate that genetic drift should strengthen across environmental gradients. This can limit natural selection to the point where populations can no longer [...]

Opinion: Missing half the picture, focus on stony corals during bleaching events has left critical knowledge gaps in our understanding of reef-scale bleaching and recovery

Rosemary Kate Steinberg

Published: 2023-11-28
Subjects: Biodiversity, Biology, Ecology and Evolutionary Biology, Life Sciences, Marine Biology, Other Ecology and Evolutionary Biology

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