1/21/2024 0 Comments Site one landscape apex![]() Finally, when extinctions are asynchronous across several small patches, rescue effects can occur where dispersal between patches supports populations and enables recolonisation following local extinction (Brown and Kodric-Brown 1977 Holyoak 2000 Hattori and Shibuno 2010). In addition, a several-small strategy may be best for biodiversity when several small patches support greater habitat diversity than a single large one (Honnay et al. Several small reserves are optimal when there is little overlap of species between different patches, meaning more species are supported overall (Bolgovics et al. Reserve design has been a long-running debate in ecology, formalised in the classic question of whether a single large or several small reserve patches (the SLOSS debate Diamond 1975) are better for biodiversity. However, despite being a popular topic for ecological research, the relative importance of the configuration (number of patches and size of patches) and connectivity (levels of dispersal and risk of mortality during dispersal) of landscapes on diversity remains contentious, with recent work demonstrating that the best configuration may depend on the trophic level of the species being conserved (Hammill and Clements 2020). 2015), prompting recent calls for 30% of land to be conserved by 2030 (CBD 2020) and for nature reserves to be bigger and more connected (Lawton et al. However, protected areas have been criticised for insufficient coverage of biodiverse sites and not meeting the requirements of many taxa (Butchart et al. Our evidence emphasises the importance of considering multiple diversity measures to disentangle community responses to patch configuration.Įfficient and effective protected areas are needed now more than ever due to the widespread decline of global wildlife populations coupled with an increase in the pressures driving these declines (Butchart et al. Furthermore, the responses of predators depended on their feeding specialism, with generalist predator presence being highest in a single large patch, whilst specialist predator presence was highest in several-small patches with matrix dispersal. We show that increasing the number of patches significantly increases γ diversity and reduces the overall number of extinctions, whilst landscapes with heterogeneous patch sizes have significantly higher γ diversity than those with homogeneous patch sizes. Here we use experimental landscapes containing ciliate protozoa to investigate how the number and heterogeneity in size of habitat patches, rates of dispersal between neighbouring patches, and mortality risk of dispersal across the non-habitat ‘matrix’ interact to affect a number of diversity measures. However, how the importance of these features changes depending on what the conservation objective is remains poorly understood. Design tactics previously proposed to promote biodiversity include enhancing the number, connectivity, and heterogeneity of reserve patches. ![]() “This is our seventh acquisition to date in 2018 as we continue to expand the number of markets where we provide a full range of landscape supplies and services to our customers.Biodiversity is declining at an unprecedented rate, highlighting the urgent requirement for well-designed protected areas. ![]() “All American has an outstanding history and talented team that shares SiteOne’s passion and desire to provide quality products, exceptional service and superior value to our customers”, said Black. This acquisition aligns with our mission to be the best full-line distributor to landscape professionals and represents our first dedicated hardscapes center in Texas,” said Doug Black, Chairman and CEO of SiteOne Landscape Supply. “All American is a terrific addition with SiteOne as they add hardscapes, landscape supplies and natural stone products to our existing irrigation, agronomic, nursery and landscape lighting product lines in East Texas. ![]() Founded in 2000, All American is a leader in the distribution of hardscapes and landscape supplies to landscape professionals in the East Texas market. announced today the acquisition of All American Stone and Turf located in College Station, TX.
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