The purpose of this study was to examine the effects of two forms of concept mapping, hand-drawn and computer-generated, on the descriptive essay writing of middle-level students with learning disabilities. Twelve eighth-grade students composed descriptive essays under three conditions: no-map support, handmap support, and computer-map support. The essays were compared on four measures: number ...

In The Bell Curve, Herrnstein and Murray claim that a high value for heritability of intelligence limits or constrains the extent to which intelligence can be increased by changing the environment. This article argues that the concept of heritability is based on unsupportable assumptions and that its numerical value places no constraint on the consequences of an improved environment. On the con...

We address the question of whether the low abundance of juvenile pink shrimp Farfantepenaeus duorarum (Burkenroad, 1939) in northern-central Florida Bay results from (i) limiting environmental conditions, (ii) a reduced postlarval transport, or (iii) both. To explore this question, postlarvae were collected during the new moon in both summer and fall of 2004 and 2005 at six stations located on ...

Most species of flowering plants rely on animal pollinators for effective mating (Ollerton et al., 2011), often interacting with diverse communities floral visitors 2007; Waser 1996). However, many commonly receive incompatible pollen, self-pollen or pollen from closely related individuals, thus influencing the quality that reaches target (Aizen & Harder, Ashman 2004). Such reductions in plant ...

Major element contents of chondrite groups were volatility controlled and established in a nebula after formation of Ca-Al-rich inclusions but before chondrules formed. Elemental abundances in chondrules tend to correlate with chemical affinity. Calcium was fractionated from Al by a planetary, not a nebular process. Chondrules were contemporaneous with igneous activity and aqueous and thermal m...

In this article, we present an overview of a research programme that is focused on reliably and validly measuring non-cognitive attributes associated with teacher effectiveness for the purpose of selection into ITE programmes. The novel contribution of this programme of research is that it builds on research and theory from educational psychology, methodology from organisational psychology, and...

Read the free Plain Language Summary for this article on Journal blog. Comprendre les facteurs responsables du succès des espèces exotiques est une question de recherche centrale en biologie invasions. Les caractéristiques écologiques jouent un rôle indéniable dans la réussite l’invasion, mais le lien entre traits et différentes dimensions l'invasion reste encore à étudier chez vertébrés. Nous ...

Read the free Plain Language Summary for this article on Journal blog. Plant-pollinator interaction networks are not static but have their own temporal dynamics. Understanding how these dynamics respond to human-driven disturbances is necessary predict and mitigate consequences of global change pollination interactions ecosystem functioning (CaraDonna et al., 2021). Several authors (Novotny, 20...

Protecting tropical forests and their biological diversity is a global priority. Understanding if thresholds of forest cover exist beyond which biodiversity displays non-linear declines key to developing appropriate conservation strategies policies, but uncertainty remains around the identification characteristics these thresholds. We performed systematic review studies using gradient identify ...

A key defining feature of a species' niche and ecological roles is its diet (Pocheville 2015). What an animal species eats influences trophic position, how it moves around, which other interacts with, among many behaviours. While diets are flexible, predators have evolved to forage optimally on certain prey types or (Hayward et al. 2011, 2016). The mechanisms that determine optimal foraging beh...