10 Works

The population genomics of repeated freshwater colonizations by Gulf Pipefish

Sarah Flanagan, Emily Rose & Adam Jones
How organisms adapt to the novel challenges imposed by the colonization of a new habitat has long been a central question in evolutionary biology. When multiple populations of the same species independently adapt to similar environmental challenges, the question becomes whether the populations have arrived at their adaptations through the same genetic mechanisms. In recent years, genetic techniques have been used to tackle these questions by investigating the genome‐level changes underlying local adaptation. Here, we...

Cascading impacts of earthquakes and extreme heatwaves have destroyed populations of an iconic marine foundation species

Mads Thomsen
Aim: Ecologists traditionally study how contemporary local processes, such as biological interactions and physical stressors, affect the distribution and abundance of organisms. By comparison, biogeographers study the distribution of the same organisms, but focus on historic, larger-scale processes that can cause mass mortalities, such as earthquakes. Here we document cascading effects of rare biogeographical (seismic) and more common ecological (temperature-related) processes on the distribution and abundances of coastal foundation species. Location: Intertidal wave-exposed rocky reefs...

Data for: Density dependence and spatial heterogeneity limit the population growth rate of invasive pines at the landscape scale

Rowan Sprague, Philip Hulme, Elena Moltchanova & William Godsoe
Determining population growth across large scales is difficult because it is often impractical to collect data at large scales and over long timespans. Instead, the growth of a population is often only measured at a small, plot-level scale and then extrapolated to derive a mean field estimate. However, this approach is prone to error since it simplifies spatial processes such as the neighbourhood effects of density and dispersal. We present a novel approach that estimates...

Anthropogenic disturbance impacts ectomycorrhizal communities and abiotic soil properties: implications for an endemic forest disease

Sarah Sapsford
In forest ecosystems, habitat fragmentation negatively impacts stand structure and biodiversity; the resulting fragmented patches of forest have distinct, disturbed edge habitats that experience different environmental conditions than the interiors of the fragments. In southwest Western Australia, there is a large-scale decline of the keystone tree species Corymbia calophylla following fragmentation and land use change. These changes have altered stand structure and increased their susceptibility to an endemic fungal pathogen, Quambalaria coyrecup, which causes chronic...

Data from: Trophic partitioning and feeding capacity in Permian bryozoan faunas of Gondwana

Catherine Reid & Yuta Tamberg
Bryozoans are epibenthic suspension-feeders and use their ciliated tentacles to generate feeding currents. Modern bryozoan mouth size limits the size of the particles that can be ingested, and lophophore diameter is linked to water pumping rates. In fossil bryozoans these soft parts are absent, however, mouth and lophophore dimensions can be inferred from preserved skeletons. Gondwanan Permian palaeostomate bryozoans show distinct order-level trophic partitioning across warm to cold-water faunas. In diverse warm-water faunas of southern...

Exotic plants accumulate and share herbivores yet dominate communities via rapid growth

Warwick Allen
Manuscript abstract: Herbivores may facilitate or impede exotic plant invasion, depending on their direct and indirect interactions with exotic plants relative to co-occuring natives. However, previous studies investigating direct effects have mostly used pairwise native-exotic comparisons with few enemies, reached conflicting conclusions, and largely overlooked indirect interactions such as apparent competition. Here we ask whether native and exotic plants differ in their interactions with invertebrate herbivores. We manipulate and measure plant-herbivore and plant-soil biota interactions...

Resolving the Tetrastigma loheri s.l. species complex (Vitaceae) in the Philippines: No evidence for recognizing more than one species

Jasper John Obico, Julie Barcelona, Vincent Bonhomme, Marie Hale & Pieter Pelser
Tetrastigma loheri (Vitaceae) is a vine species native to Borneo and the Philippines. Because it is a commonly encountered forest species in the Philippines, T. loheri is potentially suitable for studying patterns of genetic diversity and connectivity among fragmented forest ecosystems in various parts of this country. However, previous research suggests that T. loheri is part of a species complex in the Philippines (i.e. the T. loheri s. l. complex) that potentially also contains Philippine...

An invasive species erodes the performance of coastal wetland protected areas

Junlin Ren, Jianshe Chen, Changlin Xu, Johan Van De Koppel, Mads Thomsen, Shi-Yun Qiu, Fangyan Cheng, Wanjuan Song, Quan-Xing Liu, Chi Xu, Junhong Bai, Yihui Zhang, Baoshan Cui, Mark Bertness, Brian Silliman, Bo Li & Qiang He
The world has increasingly relied upon protected areas (PAs) to rescue highly valued ecosystems from human activities, but whether PAs will fare well with bioinvasions remains unknown. By analyzing three decades of seven largest coastal PAs in China, including multiple World Natural Heritage and/or Wetlands of International Importance sites, we show that although PAs are achieving success in rescuing iconic wetlands and critical shorebird habitats from once widespread reclamation, this success is counteracted by escalating...

Scoring of 13 microsatellite loci for Tetrastigma loheri in Cebu (Philippines) based on the fragment length size of their respective alleles

Jasper John Obico, Hemres Alburo, Julie Barcelona, Marie Hale, Lisa Paguntalan, Tammy Steeves & Pieter Pelser
Little is known about the effects of habitat fragmentation on the patterns of genetic diversity and genetic connectivity of species in the remaining tropical forests of Southeast Asia. This is particularly evident in Cebu, a Philippine island that has a long history of deforestation and has lost nearly all of its forest cover. To begin filling this gap, data from 13 microsatellite loci developed for Tetrastigma loheri (Vitaceae), a common vine species in Philippine forests,...

Diversity change in forest plots of Blue Mountains, Jamaica

William Godsoe, Peter Bellingham & Elena Moltchanova
Beta diversity describes the differences in species composition among communities. Changes in beta diversity over time are thought to be due to selection based on species’ niche characteristics. For example, theory predicts that selection that favours habitat specialists will increase beta diversity. In practice, ecologists struggle to predict how beta diversity changes. To remedy this problem, we propose a novel solution that formally measures selection’s effects on beta diversity. Using the Price equation, we show...

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