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FIG. 6 in Multi-aged forest fragments in Atlantic France that are surrounded by meadows retain a richer epiphyte lichen flora

FIG. 6. — The gamma diversity indicated that the highest number of lichen species was recorded on larger trees in the interiors of the FFs surrounded by meadows (legend is as in Fig. 2).

FIG. 3 in Multi-aged forest fragments in Atlantic France that are surrounded by meadows retain a richer epiphyte lichen flora

FIG. 3. — The significant effect of host tree species (A) and shrub cover (B) on lichen species abundance according to a summary of the GLMMs. The GLMM results are presented for the interior forest at the tree level within FFs surrounded by meadows, taking into account the larger tree category (trees that range in circumference between 0.56 and 2.97).

FIG. 5 in Multi-aged forest fragments in Atlantic France that are surrounded by meadows retain a richer epiphyte lichen flora

FIG. 5. — The significant effect of tree circumference on the number of lichen species according to the summary of the GLMMs. The GLMM results are presented at the tree level within FFs surrounded by crops, taking into account the larger tree category (details as in Fig. 2).

FIG. 2 in Multi-aged forest fragments in Atlantic France that are surrounded by meadows retain a richer epiphyte lichen flora

FIG. 2. — The significant effects of: A, B, moss coverage; C, D, tree circumference; and E, F, host tree species on lichen abundance according to a summary of the GLMMs. The values of the estimator (E), standard error (SE), and Wald chi-squared test (chisq), the degrees of freedom (dfs) and significance (p) are presented. The GLMM results are presented for the larger tree category (trees that range in circumference between 0.56 and 2.97) at the tree and forest levels at the exteriors of the FFs surrounded by crops.

FIG. 1 in Multi-aged forest fragments in Atlantic France that are surrounded by meadows retain a richer epiphyte lichen flora

FIG. 1. — The location of the study area within the Poitou-Charentes region (western France). Source: Google Earth Pro V 7.3.2.5776. (14 December 2015). France. 45°21'34.14"N, 0°12'32.38"W, Eye alt 340.93 km. SIO, NOAA, U.S. Navy, NGA, GEBCO. US Dept of State Geographer. Landsat/Copernicus 2018. http://www. earth.google.com (13 February 2019).

opencc-by-4.0Apr 2023View details →

Archived Data - Genetic breaks caused by ancient forest fragmentation: phylogeography of Staudtia kamerunensis (Myristicaceae) reveals distinct clusters in the Congo Basin

List of the 400 genotyped Staudtia kamerunensis accessions from Central Africa included in Vanden Abeele & Matvijev et al. 2023 - Tree Genetics & Genomes, and the corresponding alleles for each of the 14 microsatellite markers (0-0 indicates missing alleles)

opencc-zeroJun 2023View details →

APPENDIX 12 in Detangling the effects of patch attributes on bryophyte diversity in fragmented subtropical secondary forests - a case study of land-bridge islands

APPENDIX 12. — Relationships of accumulative species number with accumulative sampling efforts for eight largest islands.

opencc-zeroJun 2023View details →

FIG. 2 in Detangling the effects of patch attributes on bryophyte diversity in fragmented subtropical secondary forests - a case study of land-bridge islands

FIG. 2. — Relationships of species richness with number of habitat types, area, elevation, shape irregularity, vegetative cover, and ISW for five bryophyte categories in 168 forest fragments of the Thousand Island Lake, China. The regression equations are derived from GLMMs. Note: ISW, the relative proportion of water within a circle of a diameter of 1000 m centered on a given island.

opencc-zeroJun 2023View details →

Breeding season forest fragment size does not create negative carry-over for adult Wood Thrushes on fall migration timing or apparent annual survival

Although carry-over effects related to wintering habitat quality are known to influence population dynamics of migratory songbirds, the presence of breeding season carry-over is under-studied in full annual cycle models. To test whether forest fragment size on the breeding grounds can impose negative carry-over effects on a migratory songbird, we fitted adult Wood Thrushes with one-year coded radio-tags in forest fragments ranging from 11–499 ha in southwestern Ontario during the 2016–2019 breeding seasons and utilized automated telemetry via the Motus Wildlife Tracking System to record fall migration timing and returns the following spring (apparent annual survival). To examine short-term effects of fragment size on breeding females, during the 2018 and 2019 breeding seasons, we collected blood samples during incubation to measure corticosterone levels and tracked complete reproductive success and nest timing. We found that Wood Thrushes breeding in small forest fragments were not subject to strong negative effects on body condition (mass, corticosterone), reproductive success, or timing of the last nest of the season. Next, we found that the onset of fall migration departure was not delayed for birds nesting in small fragments and that apparent annual survival was not linked to breeding fragment size. This suggests that habitat differences linked to fragment size were not strong enough to trigger the kinds of negative carry-over effects (delayed migration, lower reproductive success) that have been documented in other species as a result of poor wintering ground habitat quality. The strength of breeding fragment size-induced seasonal carry-over remains a critical gap in full annual cycle models for other declining migratory songbirds. Our findings suggest that while the importance of preserving large forested areas is often prioritized in conservation projects, small forest fragments can also have high conservation value.

opencc-by-4.0Sep 2023View details →

Capacity for recovery in Bornean orangutan populations if both forest fragmentation and offtake are limited

Spatial layers to run RangeShifter for orangutan populations across Borneo for the three subspecies (Pongo pygmaeus  pygmaeus, P. p. wurmbii and P. p. morio). Each subspecies has four associated layers, defined for two fragmentation scenarios Status quo (current levels of fragmentation) and Extreme fragmentation (fragments less than 5,000 ha removed). 1). Habitat, defines the 1/b values for populations intersecting the specific habitat types. 2). Patches, delineates discrete areas of suitable orangutan habitat, each with a unique ID. 3). Resistance, accumulative cost to an orangutan of moving across that landscape and 4). Start_patches, specifies which patches should be initialised with orangutans present at year 0 of the model run.

opencc-zeroOct 2023View details →

Frugivore-mediated seed dispersal in fragmented landscapes: Compositional and functional turnover from forest to matrix

Seed dispersal by frugivores is a fundamental function for plant community dynamics in fragmented landscapes, where forest remnants are typically embedded in a matrix of anthropogenic habitats. Frugivores can mediate both connectivity among forest remnants and plant colonization of the matrix. However, it remains poorly understood how frugivore communities change from forest to matrix due to the loss or replacement of species with traits that are less advantageous in open habitats, and whether such changes ultimately influence the composition and traits of dispersed plants via species interactions. Here, we close this gap by using a unique dataset of seed-dispersal networks that were sampled in forest patches and adjacent matrix habitats of seven fragmented landscapes across Europe. We found a similar diversity of frugivores, plants and interactions contributing to seed dispersal in forest and matrix, but a high turnover (replacement) in all these components. The turnover of dispersed seeds was smaller than that of frugivore communities because different frugivore species provided complementary seed dispersal in forest and matrix. Importantly, the turnover involved functional changes towards larger and more mobile frugivores in the matrix, which dispersed taller, larger-seeded plants with later fruiting periods. Our study provides a trait-based understanding of frugivore-mediated seed dispersal through fragmented landscapes, uncovering non-random shifts that can have cascading consequences for the composition of regenerating plant communities. Our findings also highlight the importance of forest remnants and frugivore faunas for ecosystem resilience, demonstrating a high potential for passive forest restoration of unmanaged lands in the matrix.

opencc-zeroOct 2023View details →

Natal forest fragment size does not predict fledgling, pre-migration, or apparent annual survival in Wood Thrushes

Determining the drivers and mechanisms for first-year survival of migratory songbirds has been an understudied area in population dynamics due to the difficulty in tracking juveniles once they have dispersed from the natal site. With the advancement in miniaturization of radio-tags (battery life ~400 days) and the development of the Motus Wildlife Tracking System, we tracked 189 Wood Thrush nestlings through independence and to fall migration departure, and their return the following spring. Natal forest fragment size was not a good predictor of survival at any of the main life stages and onset of fall migration was predicted by fledge date but not natal fragment size. The percent forest cover in the landscape (at 2-km scale) had only a weak effect on fledgling survival. Survival probability was lowest for fledglings on their natal territory (70%, or 0.86 weekly survival probability), very high for juveniles as they explored the local landscape prior to fall migration (89%, or 0.99 weekly survival probability) and low during their first migration and wintering season (26%, or 0.95 weekly survival probability). To our knowledge, this is the first study to directly estimate annual apparent juvenile survival in a migratory songbird using year-round radio-tracking. Our study suggests that small forest fragments are important for the conservation for forest songbirds because they can support high survival of juveniles.