Loss and fragmentation of mature woodland reduce the habitat niche breadth of forest birds

Torrenta, Rémi; Lacoste, Florent; Villard, Marc‐André

doi:10.1007/s10980-018-0718-9

Cited by 13 publications

(11 citation statements)

References 93 publications

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“…The Wood Thrush ( H. mustelina ) is a SCC where concern over habitat fragmentation is causing steep declines in their populations (Rushing et al 2016). Wood Thrushes are sensitive to anthropogenic changes and forest habitat fragmentation (Driscoll and Donovan 2004, Torrenta et al 2018). In the eastern USA, Wood Thrushes are associated with dense understory vegetation, structured but sparse mid canopies with high canopy cover (James et al 1984).…”

Section: Discussionmentioning

confidence: 99%

The value of local habitat heterogeneity and productivity when estimating avian species richness and species of concern

et al. 2020

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As the quality and quantity of natural habitats decrease, pressure increases to better understand species-habitat interactions and how animal communities respond to habitat changes. We assessed the relative importance of local habitat heterogeneity and productivity measures as predictors of avian species richness and compared these results to models for species of conservation concern (SCC). We derived three-dimensional habitat heterogeneity and productivity measures from light detection and ranging data and hyperspectral imagery, and then used a Bayesian multi-species hierarchical framework to model avian species richness and occupancy. We found both habitat heterogeneity and productivity were important factors for determining avian community richness. Three-dimensional habitat heterogeneity and productivity metrics accurately predicted species richness at a local scale and were especially important to use within habitat guilds (i.e., alpha diversity). When scaling up to community richness across multiple habitat types (i.e., gamma diversity), two-dimensional (surface level) productivity and heterogeneity metrics became important additions to the three-dimensional metrics when estimating total avian richness. We also tested the utility of these metrics for predicting occupancy of SCC and compared community-level relationships to species-specific relationships. Species of conservation concern differed from the broader avian community with regard to local habitat heterogeneity and productivity measures. Species of conservation concern had different relationship habitat metrics than the greater avian community. Three-dimensional measures of habitat heterogeneity and productivity predicted avian richness across the landscape, yet also highlighted the different habitat structure needs of SCC compared with the greater avian community.

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Section: Discussionmentioning

confidence: 99%

The value of local habitat heterogeneity and productivity when estimating avian species richness and species of concern

et al. 2020

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“…Habitat loss reduces the resources and area available to species, while habitat fragmentation results in patches of populations and limits interactions among them (Pardini et al., 2018). Both negatively affect biodiversity (Cagnolo et al., 2009; Newbold et al., 2015), food‐web structure (Bartlett et al., 2016; Cagnolo et al., 2009), and the dispersal and reproduction of species (Browne & Karubian, 2018; Lander et al., 2019; Torrenta et al., 2018). Slow growth and low reproductive rates species, such as agaves, are especially susceptible to environmental disturbances (Martínez‐Palacios et al., 1999).…”

Section: Introductionmentioning

confidence: 99%

Relative genetic diversity of the rare and endangered Agave shawii ssp. shawii and associated soil microbes within a southern California ecological preserve

Vasquez

Feng

et al. 2021

Ecology and Evolution

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Shaw's Agave (Agave shawii ssp. shawii) is an endangered maritime succulent growing along the coast of California and northern Baja California. The population inhabiting Point Loma Peninsula has a complicated history of transplantation without documentation. The low effective population size in California prompted agave transplanting from the U.S. Naval Base site (NB) to Cabrillo National Monument (CNM). Since 2008, there are no agave sprouts identified on the CNM site, and concerns have been raised about the genetic diversity of this population. We sequenced two barcoding loci, rbcL and matK, of 27 individual plants from 5 geographically distinct populations, including 12 individuals from California (NB and CNM). Phylogenetic analysis revealed the three US and two Mexican agave populations are closely related and have similar genetic variation at the two barcoding regions, suggesting the Point Loma agave population is not clonal. Agave‐associated soil microbes used significantly more carbon sources in CNM soil samples than in NB soil likely due to higher pH and moisture content; meanwhile, soil type and soil chemistry analysis including phosphorus, nitrate nitrogen, organic matter, and metals revealed significant correlations between microbial diversity and base saturation (p < 0.05, r2 = 0.3676), lime buffer capacity (p < 0.01, r2 = 0.7055), equilibrium lime buffer capacity (p < 0.01, r2 = 0.7142), and zinc (p < 0.01, r2 = 0.7136). Soil microbiome analysis within the CNM population revealed overall expected richness (H′ = 5.647–6.982) for Agave species, while the diversity range (1 − D = 0.003392–0.014108) suggests relatively low diversity marked by high individual variation. The most prominent remaining US population of this rare species is not clonal and does not seem to be threatened by a lack of genetic and microbial diversity. These results prompt further efforts to investigate factors affecting Agave's reproduction and fitness.

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“…However, landscape characteristics can contribute to alter the realized habitat niche, despite the habitat conditions. For instance, the degree of forest fragmentation can affect the ability of species to spill over into suboptimal habitat types, a density-dependent process also influenced by regional abundances [21]. This often results in niche contractions [21], as the overall breadth of the realized habitat niches is related to the ability of species to cope with landscape context [23].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the degree of forest fragmentation can affect the ability of species to spill over into suboptimal habitat types, a density-dependent process also influenced by regional abundances [21]. This often results in niche contractions [21], as the overall breadth of the realized habitat niches is related to the ability of species to cope with landscape context [23]. Generally, an interplay between abiotic conditions, habitat structure, landscape context, and species co-occurrences ultimately shapes the realized niches of species, with consequences on populations and communities of forest organisms.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of forests, management can be a fundamental determinant of the ‘habitat niche’ of forest species [20]. The habitat niche includes ‘the multidimensional space containing the compositional and structural features of a species’ environment that induce its occupancy’ [21], and can include also types of food, nest sites and microclimate but is mostly referred to by forest structure [22]. However, landscape characteristics can contribute to alter the realized habitat niche, despite the habitat conditions.…”

Section: Introductionmentioning

confidence: 99%

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Species associations and management intensity modulate the habitat niche breadth of forest birds

Basile

Asbeck

Pereira

et al. 2020

Preprint

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Species associations can have profound effects on the realized habitat niche of species, indicating that habitat structure alone cannot fully explain observed abundances. To account for this aspect of community organization in niche modelling, we developed multi-species abundance models, incorporating the local effect of potentially associated species, alongside with environmental ones, targeting mainly forest management intensity. We coupled it with a landscape-scale analysis to further examine the role of management intensity in modifying the habitat niche in connection with the landscape context. Using empirical data from the Black Forest in southern Germany, we focused on the forest bird assemblage and in particular on the cavity nester and canopy forager guilds. We included in the analysis species that co-occur and for which evidences suggest association is likely. Our findings show that the local effect of species associations can moderate the effects of management intensity. We also found that species express a larger habitat niche breadth in intensively managed forests, depending on the landscape context. Species associations may facilitate the utilization of a broader range of environmental conditions under intensive forest management, which benefits some species over others. Such network of associations may be a relevant factor in the effectiveness of conservation-oriented forest management.

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Loss and fragmentation of mature woodland reduce the habitat niche breadth of forest birds

Cited by 13 publications

References 93 publications

The value of local habitat heterogeneity and productivity when estimating avian species richness and species of concern

The value of local habitat heterogeneity and productivity when estimating avian species richness and species of concern

Relative genetic diversity of the rare and endangered Agave shawii ssp. shawii and associated soil microbes within a southern California ecological preserve

Species associations and management intensity modulate the habitat niche breadth of forest birds

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