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article

Using experimental reintroductions to resolve the roles of habitat quality and metapopulation dynamics on patch occupancy in fragmented landscapes

Doug P. Armstrong, Rebecca L. Boulton, Nikki McArthur, Susanne Govella, more

Conservation Biology > 36 > 3 > n/a - n/a

Declines of species in fragmented landscapes can potentially be reversed either by restoring connectivity or restoring local habitat quality. Models fitted to snapshot occupancy data can be used to predict the effectiveness of these actions. However, such inferences can be misleading if the reliability of the habitat and landscape metrics used is unknown. The only way to unambiguously resolve the...

article

SLOSS‐based inferences in a fragmented landscape depend on fragment area and species–area slope

Jinliang Liu, Zachary G. MacDonald, Xingfeng Si, Lingbing Wu, more

Journal of Biogeography > 49 > 6 > 1075 - 1085

Aims Whether a Single Large Or Several Small (SLOSS) habitat patches contain more species is central to the debate about how habitat fragmentation threatens species diversity. However, the geographical and biogeographical variables that affect emergent SLOSS patterns remain poorly understood. Here, we quantified SLOSS‐based diversity patterns of woody plant, bird and spider assemblages in a subtropical...

article

Activity patterns of Hawaiian forest birds in a fragmented and continuous landscape

Jennifer R. Smetzer, Kristina L. Paxton, Patrick J. Hart, Eben H. Paxton

Journal of Avian Biology > 2022 > 4 > n/a - n/a

Activity patterns are a key component of avian life history and behavior, and decisions about how activity periods are structured can have important fitness implications. Despite the importance of activity patterns, individual variability in activity is poorly studied in small birds. We used automated radio telemetry to track Hawaiian forest birds from three dietary guilds in a continuous forest,...

article

Puma responses to unreliable human cues suggest an ecological trap in a fragmented landscape

Anna C. Nisi, John F. Benson, Christopher C. Wilmers

Oikos > 2022 > 5 > n/a - n/a

Animals' fear of people is widespread across taxa and can mitigate the risk of human‐induced mortality, facilitating coexistence in human‐dominated landscapes. However, humans can be unpredictable predators and anthropogenic cues that animals perceive may not be reliable indicators of the risk of being killed. In these cases, animal fear responses may be ineffective and may even exacerbate the risk...

article

Species‐level CWM values mask contrasting intra‐ versus interspecific trait shifts at subtropical forest edges

Shilu Zheng, Raphael K. Didham, Mingjian Yu, Bruce L. Webber

Ecography > 2022 > 5 > n/a - n/a

Altered microclimatic conditions and higher disturbance at forest edges create environmental stress and modify resource gradients from edge to interior, changing the selection pressures acting on individuals. Although community‐weighted trait‐mean (CWM) shifts along edge gradients have been widely documented at the species level, it is unclear how edge effects act at the individual level, and whether...

article

Corridors in heavily fragmented landscapes: reconnecting populations of critically endangered brown spider monkeys (Ateles hybridus) and sympatric terrestrial vertebrates in the lowland rainforests of Central Colombia

Selene Torres, Leonor Valenzuela, Christian Patarroyo, Andrés Montes‐Rojas, more

Restoration Ecology > 30 > 4 > n/a - n/a

In tropical ecosystems, habitat degradation and fragmentation are some of the most important drivers of biodiversity loss. In Colombia, the Magdalena River basin is home to a megadiverse wildlife community, which has been historically exposed to pervasive habitat loss and fragmentation. Within a long‐term project on the conservation of critically endangered brown spider monkeys (Ateles hybridus),...

article

Complex effects of habitat amount and fragmentation on functional connectivity and inbreeding in a giant panda population

Thomas Connor, Maiju Qiao, Kim Scribner, Jindong Zhang, more

Conservation Biology > 36 > 2 > n/a - n/a

The relationships between habitat amount and fragmentation level and functional connectivity and inbreeding remain unclear. Thus, we used genetic algorithms to optimize the transformation of habitat area and fragmentation variables into resistance surfaces to predict genetic structure and examined habitat area and fragmentation effects on inbreeding through a moving window and spatial autoregressive...

article

Can matrix structure affect animal navigation between fragments? A dispersal experiment using release platforms

Vitor Quadros Altomare Sanches, Jorge Fernando Saraiva Menezes, Jayme Augusto Prevedello, Mauricio Almeida‐Gomes, more

Biotropica > 54 > 2 > 370 - 380

The persistence of species in fragmented landscapes relies on landscape connectivity and individuals’ ability in dispersing among habitat patches. Accordingly, matrix structure can affect the orientation of dispersing individuals across the landscape. In this study, we measured the impact of matrix structure on the dispersal performance of the white‐eared opossum (Didelphis albiventris). We released...

article

Myoglobin as a conservation‐relevant predictor of short‐distance flight capacity in Neotropical forest birds

Kelsey Condell, W. Douglas Robinson, Randall P. Moore, Bryan Rourke

Biotropica > 54 > 2 > 327 - 333

Some forest‐dwelling tropical bird species are unable or unwilling to fly even a few hundred meters across habitat discontinuities, restricting connectivity of isolated populations in fragmented landscapes. Experimental evidence for flight limitation has reliably predicted occurrence across archipelagoes of habitat fragments varying in their distance from potential source populations. Mechanistic...

article

Using citizen science to understand and map habitat suitability for a synurbic mammal in an urban landscape: the hedgehog Erinaceus europaeus

Jessica Turner, Robin Freeman, Chris Carbone

Mammal Review > 52 > 2 > 291 - 303

Urban environments are important for west European hedgehogs Erinaceus europaeus. The species has been recorded in 73% of large urban areas throughout its geographic range. However, the environmental relationships determining hedgehog distribution within these landscapes are not well understood. Taking a city‐wide perspective, this study identifies hedgehogs’ habitat relationships with urban environmental...

article

Drivers of phylogenetic structure in Amazon freshwater fish assemblages

Laís Salgueiro, Fernanda A. S. Cassemiro, James S. Albert, Renata G. Frederico, more

Journal of Biogeography > 49 > 2 > 310 - 323

Aim Phylogenetic relatedness among species can provide useful information on the diversification history and past dispersal events that may have shaped contemporary assemblages. Here, using of the most comprehensive fish occurrence database currently available and a global molecular phylogeny of ray‐finned fishes, we evaluate the respective roles of historical and contemporary processes in generating...

article

On this side of the fence: Functional responses to linear landscape features shape the home range of large herbivores

Juliette Seigle‐Ferrand, Pascal Marchand, Nicolas Morellet, Jean‐Michel Gaillard, more

Journal of Animal Ecology > 91 > 2 > 443 - 457

Understanding the consequences of global change for animal movement is a major issue for conservation and management. In particular, habitat fragmentation generates increased densities of linear landscape features that can impede movements. While the influence of these features on animal movements has been intensively investigated, they may also play a key role at broader spatial scales (e.g....

article

How does landscape permeability affect the movement of eastern red‐backed salamanders?

Rachel Snyder, Emily Mausteller, Tanya J. Hawley Matlaga, David A. W. Miller

The Journal of Wildlife Management > 86 > 1 > n/a - n/a

Demographic and genetic connectivity have important implications for population dynamics of wildlife and their ability to adapt to changing environments. Landscape features such as roads and streams can inhibit movement of species with poor dispersal capabilities and exacerbate the effects of habitat fragmentation. Terrestrial plethodontid salamanders are generally thought of as incapable of long‐distance...

article

The effects of human‐altered habitat spatial pattern on frugivory and seed dispersal: a global meta‐analysis

Eliana Cazetta, Lenore Fahrig

Oikos > 2022 > 2 > n/a - n/a

Seed dispersal by frugivorous animals is important for plant mobility, regeneration and persistence. Human‐caused landscape change is thought to disrupt seed dispersal, but evidence is scarce. We performed a comprehensive meta‐analysis on the effects of habitat spatial pattern on frugivory and seed dispersal. We found 233 effects from 71 studies. At a patch or local scale, altered habitat spatial...

article

Population decline at distribution margins: Assessing extinction risk in the last glacial relictual but still functional metapopulation of a European butterfly

Stéphanie Sherpa, Caroline Kebaïli, Delphine Rioux, Maya Guéguen, more

Diversity and Distributions > 28 > 2 > 271 - 290

Aim To determine the interplay between climate and land use changes in driving population dynamics in a butterfly species, Coenonympha hero, at the southern limit of its distribution. Location French Jura massif and Europe. Methods We analysed patterns of genetic diversity distribution at 817 loci in 136 butterflies from 31 sites using NGS to infer the genetic structure and population size changes...

article

Resolving the SLOSS dilemma for biodiversity conservation: a research agenda

Lenore Fahrig, James I. Watling, Carlos Alberto Arnillas, Víctor Arroyo‐Rodríguez, more

Biological Reviews > 97 > 1 > 99 - 114

The legacy of the ‘SL > SS principle’, that a single or a few large habitat patches (SL) conserve more species than several small patches (SS), is evident in decisions to protect large patches while down‐weighting small ones. However, empirical support for this principle is lacking, and most studies find either no difference or the opposite pattern (SS > SL). To resolve this dilemma, we propose...

article

Active restoration fosters better recovery of tropical rainforest birds than natural regeneration in degraded forest fragments

Priyanka Hariharan, T. R. Shankar Raman

Journal of Applied Ecology > 59 > 1 > 274 - 285

Ecological restoration has emerged as a key strategy for conserving tropical forests and habitat specialists, and monitoring faunal recovery using indicator taxa like birds can help assess restoration success. Few studies have examined, however, whether active restoration (AR) achieves better recovery of bird communities than natural regeneration, or how bird recovery relates to habitat affiliations...

article

Habitat disturbance trumps moonlight effects on the activity of tropical insectivorous bats

G. Appel, A. López‐Baucells, R. Rocha, C. F. J. Meyer, more

Animal Conservation > 24 > 6 > 1046 - 1058

Changes in moonlight intensity can affect predation risk and induce changes in habitat use and activity of nocturnal species. However, the effect of moonlight on animal activity is rarely evaluated in human‐modified landscapes and can be of vital importance to understand possible changes in ecosystem services provided by light‐sensitive taxa, such as insectivorous bats. Fragmentation changes forest...

article

Delayed effects of climate on vital rates lead to demographic divergence in Amazonian forest fragments

Eric R. Scott, María Uriarte, Emilio M. Bruna

Global Change Biology > 28 > 2 > 463 - 479

Deforestation often results in landscapes where remaining forest habitat is highly fragmented, with remnants of different sizes embedded in an often highly contrasting matrix. Local extinction of species from individual fragments is common, but the demographic mechanisms underlying these extinctions are poorly understood. It is often hypothesized that altered environmental conditions in fragments...

article

Habitat percolation transition undermines sustainability in social‐ecological agricultural systems

Diego Bengochea Paz, Kirsten Henderson, Michel Loreau, Fangliang He

Ecology Letters > 25 > 1 > 163 - 176

Steady increases in human population size and resource consumption are driving rampant agricultural expansion and intensification. Habitat loss caused by agriculture puts the integrity of ecosystems at risk and threatens the persistence of human societies that rely on ecosystem services. We develop a spatially explicit model describing the coupled dynamics of an agricultural landscape and human population...

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Search results

Using experimental reintroductions to resolve the roles of habitat quality and metapopulation dynamics on patch occupancy in fragmented landscapes

SLOSS‐based inferences in a fragmented landscape depend on fragment area and species–area slope

Activity patterns of Hawaiian forest birds in a fragmented and continuous landscape

Puma responses to unreliable human cues suggest an ecological trap in a fragmented landscape

Species‐level CWM values mask contrasting intra‐ versus interspecific trait shifts at subtropical forest edges

Corridors in heavily fragmented landscapes: reconnecting populations of critically endangered brown spider monkeys (Ateles hybridus) and sympatric terrestrial vertebrates in the lowland rainforests of Central Colombia

Complex effects of habitat amount and fragmentation on functional connectivity and inbreeding in a giant panda population

Can matrix structure affect animal navigation between fragments? A dispersal experiment using release platforms

Myoglobin as a conservation‐relevant predictor of short‐distance flight capacity in Neotropical forest birds

Using citizen science to understand and map habitat suitability for a synurbic mammal in an urban landscape: the hedgehog Erinaceus europaeus

Drivers of phylogenetic structure in Amazon freshwater fish assemblages

On this side of the fence: Functional responses to linear landscape features shape the home range of large herbivores

How does landscape permeability affect the movement of eastern red‐backed salamanders?

The effects of human‐altered habitat spatial pattern on frugivory and seed dispersal: a global meta‐analysis

Population decline at distribution margins: Assessing extinction risk in the last glacial relictual but still functional metapopulation of a European butterfly

Resolving the SLOSS dilemma for biodiversity conservation: a research agenda

Active restoration fosters better recovery of tropical rainforest birds than natural regeneration in degraded forest fragments

Habitat disturbance trumps moonlight effects on the activity of tropical insectivorous bats

Delayed effects of climate on vital rates lead to demographic divergence in Amazonian forest fragments

Habitat percolation transition undermines sustainability in social‐ecological agricultural systems

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