Fundamental principles of the effect of habitat fragmentation on species with different movement rates DOI Open Access

John M. Jacobs,

Yurij Salmaniw, King‐Yeung Lam

et al.

Conservation Biology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Habitat loss and fragmentation have independent impacts on biodiversity; thus, field studies are needed to distinguish their impacts. Moreover, species with different locomotion rates respond differently fragmentation, complicating direct comparisons of the effects habitat across differing taxa landscapes. To overcome these challenges, we combined mechanistic mathematical modeling laboratory experiments compare how were affected by low (∼80% intact) high (∼30% levels loss. In our experiment, used Caenorhabditis elegans strains subjected them placing Escherichia coli (C. food) over proportions Petri dish. We developed a partial differential equation model that incorporated spatial biological phenomena predict arrangement populations. Only declined significantly in abundance as increased areas (p = 0.0270) 0.0243) Despite changed little regardless resources, they had lowest growth all environments because negative effect created mismatch between population distribution resource distribution. Our findings shed new light incorporating role determining fragmentation.

Language: Английский

LandFrag: A Dataset to Investigate the Effects of Forest Loss and Fragmentation on Biodiversity DOI Creative Commons
Thiago Gonçalves‐Souza, Maurício Humberto Vancine, Nathan J. Sanders

et al.

Global Ecology and Biogeography, Journal Year: 2025, Volume and Issue: 34(2)

Published: Feb. 1, 2025

ABSTRACT Motivation The accelerated and widespread conversion of once continuous ecosystems into fragmented landscapes has driven ecological research to understand the response biodiversity local (fragment size) landscape (forest cover fragmentation) changes. This information important theoretical applied implications, but is still far from complete. We compiled most comprehensive updated database investigate how these changes determine species composition, abundance trait diversity multiple taxonomic groups in forest fragments across globe. Main Types Variables Contained gathered data for 1472 fragments, providing on composition 9154 belonging vertebrates, invertebrates, plants. For 2703 species, we obtained more than 20 functional traits. provided spatial location size each fragment metrics configuration. Spatial Location Grain dataset includes sampled 121 studies all continents except Antarctica. Most datasets (77%) are tropical regions, 17% temperate 6% subtropical regions. Species were collected at plot or scale, whereas extracted with buffer ranging a radius 200–2000 m. Time Period Data community between 1994 2022, same year that given study data. Major Taxa Level Measurement studied organisms included invertebrates (Arachnida, Insecta Gastropoda; 41% datasets), vertebrates (Amphibia, Squamata, Aves Mammalia; 44%), vascular plants (19%), lowest level identification was morphospecies. Software Format code can be downloaded Zenodo GitHub.

Language: Английский

Citations

1
Incorporating effects of habitat patches into species distribution models DOI Creative Commons
Federico Riva, C Martin, Carmen Galán‐Acedo

et al.

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(10), P. 2162 - 2182

Published: Aug. 30, 2024

Abstract Species distribution models (SDMs) are algorithms designed to infer the of species using environmental and biotic variables have become an important tool for ecologists conservation biologists seeking understand implications change. Global datasets at resolutions a few metres increasingly available. SDMs fitted such high‐resolution data allow researchers investigate how local factors affect occurrences unprecedented fine spatial scales. As resolution increases, we see critical need consider characteristics habitat types within or around raster pixels. In particular, argue that effects patches (EHPs, including area, configuration, diversity), measured focusing on landscapes, yet be fully realized in SDMs. We provide guidelines incorporate EHPs explain why this development is important, describe approaches properly conduct analyses, discuss pitfalls foresee testing EHPs. Synthesis . Ensuring incorporating will key increasing model predictive performance understanding which influence At crucial time nature conservation, step forward protecting biodiversity.

Language: Английский

Citations

5
Effect of forest loss and fragmentation per se on arboreal and ground mammals of the Lacandon rainforest, Mexico DOI Creative Commons
Marisela Martínez‐Ruiz, Víctor Arroyo‐Rodríguez, Miriam San‐José

et al.

Biodiversity and Conservation, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Language: Английский

Citations

0
Why we should not assume that habitat fragmentation is generally bad for restoration: a reply to Watts and Hughes (2024) DOI Creative Commons
Federico Riva, Carmen Galán‐Acedo, Amanda E. Martin

et al.

Restoration Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

In a recent Opinion article, Watts and Hughes (W&H) suggest that habitat fragmentation is “generally bad for restoration.” We found W&H timely given progress in the conversation on fragmentation, we agree importance of assessing restoration ecology. At same time, some claims to be unsubstantiated. there likely are situations where good” setting, identify an urgent need test empirically how biodiversity responds context. Such tests will tell us when spatial pattern restored matters, informing efforts expected coming decades fulfill historical commitments sustain globally.

Language: Английский

Citations

0
Underrepresentation of dietary‐specialist larval Lepidoptera in small forest fragments: Testing alternative mechanisms DOI Open Access
James Mickley, Riley M. Anderson, David L. Wagner

et al.

Journal of Animal Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract Growing evidence suggests that organisms with narrow niche requirements are particularly disadvantaged in small habitat patches, typical of fragmented landscapes. However, the mechanisms behind this relationship remain unclear. Dietary specialists may be constrained by availability their food resources as area shrinks. For herbivorous insects, host plants filtered out fragments neutral sampling processes and deterministic plant community shifts due to altered microclimates, edge effects browsing ungulates. We examined between forest fragment abundance dietary‐specialist dietary‐generalist larval Lepidoptera (caterpillars) northeastern USA. surveyed caterpillars over 3 years equal‐sized plots within 32 varying 1014 ha. tested whether abundances species richness dietary increased more than those generalists increasing and, if so, difference could explained reduced or white‐tailed deer ( Odocoileus virginianus ). The overall was positively related area; substantially weaker for generalists. There notable variation among diet breadth groups, however. no effect on diversity caterpillars. Deer activity not either Plant composition strongly associated area. Larger were likely include both correlated decreased a slightly stronger impact specialists. Although lack fragments, did depend caterpillar breadth. This study provides further decreasing patch disproportionately impacts specialist consumers. Because derived from plots, it is robust some criticisms levelled at fragmentation research. consumer declines, however, elusive.

Language: Английский

Citations

0
Cross‐scale effects of habitat fragmentation on local biodiversity and ecosystem multifunctionality in a fragmented grassland landscape DOI
Yongzhi Yan,

Zhimin Qi,

Qing Zhang

et al.

Journal of Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract Anthropogenic habitat fragmentation has become the main threat to terrestrial ecosystems worldwide. However, impacts of at different spatial scales on biodiversity and ecosystem functions remain uncertain. Based 130 fragmented grassland landscapes in agro‐pastoral ecotone northern China, we investigated hierarchical effects landscape patch plant, soil bacteria fungi diversity multifunctionality local sample sites. We found that increased inter‐patch distance within had strongest negative effect plant richness. Decreased amount richness, richness 80% threshold multifunctionality. area isolation 30% 50% multifunctionality, respectively. Importantly, patch‐scale mediated landscape‐scale Additionally, no significant Synthesis . Our study highlights both decline with a structure. Biodiversity poorly predicts landscape.

Language: Английский

Citations

0
Dissimilarity, nestedness, and turnover patterns in vegetation at the edge and in the core of lowland forest habitats DOI Creative Commons
Michaela Michalková, Tomáš Bacigál, Lucia Čahojová

et al.

Plant Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Language: Английский

Citations

0
Creating wildlife habitat using artificial structures: a review of their efficacy and potential use in solar farms DOI Creative Commons
Remo Boscarino‐Gaetano, Karl Vernes, Eric J. Nordberg

et al.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: 99(5), P. 1848 - 1867

Published: May 12, 2024

ABSTRACT The biodiversity crisis is exacerbated by a growing human population modifying nearly three‐quarters of the Earth's land surface area for anthropogenic uses. Habitat loss and modification represent largest threat to finding ways offset species decline has been significant undertaking conservation. Landscape planning conservation strategies can enhance habitat suitability in human‐modified landscapes. Artificial structures such as artificial reefs, nest boxes, chainsaw hollows, burrows, hibernacula have all successfully implemented improve survival fragmented As global shift towards renewable energy sources continues rise, development photovoltaic systems exponentially. Large‐scale projects, solar farms large space requirements thus potential displace local wildlife. We discuss feasibility ‘conservoltaic systems’ – that incorporate elements tailored specifically wildlife potentially lessen impacts industrial (e.g., farms) through strategic landscape an understanding facilitate recolonization.

Language: Английский

Citations

3
On the emergence of ecosystem decay: A critical assessment of patch area effects across spatial scales DOI Creative Commons
Federico Riva, E. St. Pierre, Antoine Guisan

et al.

Biological Conservation, Journal Year: 2024, Volume and Issue: 296, P. 110674 - 110674

Published: June 12, 2024

Recent analyses suggest that positive patch area effects on biodiversity occur ubiquitously when comparing equal-effort samples from remnant habitat patches.The mechanisms underlying the emergence of this so-called "ecosystem decay" remain poorly understood despite conservation relevance.We leverage spatially-explicit information occurrence plant species across Swiss Alps (415 plots, 668 species) to test two compatible with patch-scale ecosystem decay: (i) plots sampled within small patches might have lower than large (plot-scale decay hypothesis), and (ii) share a proportion (turnover hypothesis).We found occurs also in our system.While tended be more dissimilar, supporting turnover hypothesis, we did not find support for plot-scale hypothesis.Additionally, distance between elevational changes explain better effects.Taken together, these results indicate applications require understanding potentially underlie pattern.Patch less important previously assumed assessing landscape-scale biodiversity, because such can confused distance-decay community similarity, environmental heterogeneity, sampling effort.More broadly, findings align mounting evidence protecting as much possibleregardless whether exists continuous or fragmentedmight most effective means sustain human-dominated landscapes.

Language: Английский

Citations

3
Biodiversity response to habitat loss and fragmentation in terrestrial ecosystems DOI
Renata Pardini, Marina Zanin, Jayme Augusto Prevedello

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

0