84 Works

Data from: Integrating morphological characters, molecular markers, and distribution patterns to assess the identity of Blepharis species from Jordan

Riyadh Muhaidat, Mohammad H. Brake, Mazhar Al Zoubi, Robert I. Colautti, Amjad Al-Nasser, Muheeb Awawdeh, Khaled Al-Batayneh, Wesam Al Khateeb, Athena D. McKown, Jamil Lahham & Ahmad El-Oqlah
Background: Blepharis constitutes an important vegetative part of the Jordanian arid and semi-arid regions, yet whether one or more species occurs in this area is debatable. We addressed this question by assessing morphological characters and employing Inter-Simple Sequence Repeat (ISSR) markers on three populations of Blepharis: two Northern (lower slopes of Kufranjah valley and the Dead Sea region) and one Southern (Wadi al Yutm). Results: Shoots from 19 randomly chosen Blepharis plants per population were...

Data from: Partitioning genetic and species diversity refines our understanding of species-genetic diversity relationships

Vera W Pfeiffer, Brett M Ford, Johann Housset, Audrey McCombs, José L Blanco-Pastor, Nicolas Gouin, Stephanie Manel & Angéline Bertin
Illuminating the origin of species-genetic diversity correlations (SGDCs) is a challenging task that has sparked a lot of interest. Genetic and species diversity are comprised by components that respond differently to the same ecological processes. Thus, it can be useful to partition species and genetic diversity into their different components to infer the mechanisms behind SGDCs. In this study, we applied such an approach using a high-elevation Andean wetland system, where previous evidence identified neutral...

Data from: Why less complexity produces better forecasts: an independent data evaluation of kelp habitat models

Edward J. Gregr, Daniel M. Palacios, Allison Thompson, Kai M.A. Chan & Kai M. A. Chan
Understanding how species are distributed in the environment is increasingly important for natural resource management, particularly for keystone and habitat forming species, and those of conservation concern. Habitat suitability models are fundamental to developing this understanding; however their use in management continues to be limited due to often-vague model objectives and inadequate evaluation methods. Along the Northeast Pacific coast, canopy kelps (Macrocystis pyrifera and Nereocystis luetkeana) provide biogenic habitat and considerable primary production to nearshore...

Data from: Museum specimens provide novel insights into changing plant-herbivore interactions

Emily K. Meineke & T. Jonathan Davies
Mounting evidence shows that species interactions may mediate how individual species respond to climate change. However, long-term anthropogenic effects on species interactions are poorly characterized due to a lack of data. Insect herbivory is a major ecological process that represents the interaction between insect herbivores and their host plants, but historical data on insect damage to plants is particularly sparse. Here, we suggest that museum collections of insects and plants can fill key gaps in...

Data from: Large‐scale molecular diet analysis in a generalist marine mammal reveals male preference for prey of conservation concern

Dietmar Schwarz, Sara M. Spitzer, Austen C. Thomas, Christa M. Kohnert, Theresa R. Keates & Alejandro Acevedo-Gutiérrez
Sex‐specific diet information is important in the determination of predator impacts on prey populations. Unfortunately, the diet of males and females can be difficult to describe, particularly when they are marine predators. We combined two molecular techniques to describe haul‐out use and prey preferences of male and female harbor seals (Phoca vitulina) from Comox and Cowichan Bay (Canada) during 2012–2013. DNA metabarcoding quantified the diet proportions comprised of prey species in harbor seal scat, and...

Data from: Measuring agreement among experts in classifying camera images of similar species

TJ Gooliaff & Karen E. Hodges
Camera trapping and solicitation of wildlife images through citizen science have become common tools in ecological research. Such studies collect many wildlife images for which correct species classification is crucial; even low misclassification rates can result in erroneous estimation of the geographic range or habitat use of a species, potentially hindering conservation or management efforts. However, some species are difficult to tell apart, making species classification challenging - but the literature on classification agreement rates...

Data from: The combined impacts of experimental defaunation and logging on seedling traits and diversity

Alys Granados, Henry Bernard & Jedediah F. Brodie
Animals can have both positive (e.g. via seed dispersal) and negative (e.g. via herbivory) impacts on plants. The net effects of these interactions remain difficult to predict and may be affected by overhunting and habitat disturbance, two widespread threats to tropical forests. Recent studies have documented their separate effects on plant recruitment but our understanding of how defaunation and logging interact to influence tropical tree communities is limited. From 2013-2016, we followed the fate of...

Data from: Fine-root exploitation strategies differ in tropical old-growth and logged-over forests in Ghana

Shalom D. Addo-Danso, Cindy E. Prescott, Stephen Adu-Bredu, Akwasi Duah-Gyamfi, Sam Moore, Robert D. Guy, David I. Forrester, Kennedy Owusu-Afriyie, Peter L. Marshall, Yadvinder Malhi. & Yadvinder Malhi
Understanding the changes in root exploitation strategies during post-logging recovery is important for predicting forest productivity and carbon dynamics in tropical forests. We sampled fine (diameter < 2 mm) roots using the soil-core method to quantify fine-root biomass, and architectural and morphological traits to determine root exploitation strategies in an old-growth forest and in a 54-year-old logged-over forest influenced by similar parent material and climate. Seven root traits were considered: four associated with resource exploitation...

Data from: Variation in offspring development is driven more by weather and maternal condition than predation risk

Devin R. De Zwaan, Alaine F. Camfield, Elizabeth C. MacDonald & Kathy Martin
1. Variation in offspring development is expected to be driven by constraints on resource allocation between growth and maintenance (e.g., thermoregulation). Rapid post-natal development decreases predation risk, while inclement weather likely prolongs development. For taxa with parental care, parental behaviour may buffer offspring against some extrinsic drivers. 2. Using a 7-year dataset from an alpine population of horned lark Eremophila alpestris, a ground-nesting songbird in northern British Columbia, Canada, we investigated multiple potential drivers of...

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