Browse results

You are looking at 1 - 10 of 16,632 items for :

  • Biology & Environmental Sciences x
  • Search level: All x
Clear All
Volume Editors: , , and
This interdisciplinary volume provides a comprehensive and rich analysis of the century-long socio-ecological transformation of Lake Naivasha, Kenya. Major globalised processes of agricultural intensification, biodiversity conservation efforts, and natural-resource extraction have simultaneously manifested themselves in this one location.

These processes have roots in the colonial period and have intensified in the past decades, after the establishment of the cut-flower industry and the geothermal-energy industry. The chapters in this volume exemplify the multiple, intertwined socio-environmental crises that consequently have played out in Naivasha in the past and the present, and that continue to shape its future.
Volume Editors: and
Volume 6/2 of the Catalogue of Palaearctic Coleoptera focuses on the second part of the beetle superfamily Chrysomeloidea reported from the Palaearctic biogeographic region. For the genus and species-groups taxa all relevant names are given and all nomenclatural data are cross-checked and the distribution of species and subspecies is given per country or smaller region. A group of 14 experts have worked to collect data based on a critical review of published sources including a significant amount of new information. This volume is also a tool for specialists as well as amateurs, which warrants unambiguous communication.
Volume Editors: and
Renewal of higher-education programs in US prisons creates a need for science education. This is the first book to address STEM education in prisons in the United States. It calls on activist science teachers to develop innovative ways to teach in challenging carceral settings.

Over the last fifty years, science education and prison education have moved in different directions, one expanding and the other contracting. This book brings these educational endeavors into cooperative engagement. Democratic citizenship opens opportunities for all people, irrespective of civil status, to study science. The book presents student narratives and case studies emphasizing the achievements of STEM education behind prison walls. STEM education equity can help address the deep social inequities that mass incarceration creates and magnifies.

Contributors are: Cassandra Barrett, Andrew Bell, George Bogner, Adrian Borealis, Drew Bush, Kelli Bush, Sandy Chang, Kelle Dhein, Amalia Handler, Steven Hart, Steven Henderson, Tiffany Hensley-McBain, Paul Kazelis, Joe Lockard, Edward Mei, Tsafrir Mor, Rob Scott, Laura Taylor, Joslyn Rose Trivett and Emily Webb.
Free access
In: Animal Biology

Abstract

Risk taking behaviour — how individuals perceive and respond to threat — varies among individuals. In birds, this behaviour influences the choice of nest microhabitat presumably because exposure to predation depends on the structural composition of the nest microhabitat (i.e., a small area where a bird builds its nest). Thus, a chosen nest microhabitat can indicate an adaptation to predation risk. However, where both parents participate in or share breeding roles, it is unknown whether the chosen nest microhabitat is influenced by risk taking behaviour of the female, the male or both parents. Moreover, risk taking may affect other behaviours during breeding, thus having a partner with similar risk taking behaviour may be important for pair complementarity. We investigated risk taking behaviour of breeding Kentish plovers (Charadrius alexandrinus) using flight initiation distance (FID) as a proxy. First, we tested whether FID is repeatable. Second, we tested whether members of breeding pairs have similar FID. Third, we investigated whether male and female’s FID is associated with the choice of nest microhabitat. We classified nest microhabitat by two indices: cover directly above the nest scrape (above nest cover) and cover around the nest (around nest coverage). We found that (i) FID was highly repeatable, (ii) FID was correlated within members of breeding pairs and (iii) female’s risk taking behaviour is linked to the use of around nest coverage. Specifically, females with longer FID, (i.e., more risk-averse ones) tended to use less concealed nest microhabitat. We concluded that nest microhabitat choice in the Kentish plovers is likely a reflection of the female’s risk taking behaviour. Breeding partners likely have similar risk taking behaviour, an indication of assortative mating. We advocate partitioning of correlation within breeding pairs to ascertain estimates of within pair correlation attributable to assortative mating.

In: Behaviour
Authors: , , and

Abstract

In this study, Poinarelektronmiles is considered as a junior synonym of Burmomiles , since no generic diagnostic differences can be found in their type species except for the elytral length, which is a yet unstable and more ecology-related character. The two hitherto known species of Poinarelektronmiles are transferred to Burmomiles or Sanaungulus , including B. ellenbergeri () comb. nov. and S. cuaroni () comb. nov. Meanwhile, B. dominikiweissbachi () comb. nov., B. kachinensis () comb. nov. and B. lethi () comb. nov. are transferred from Sanaungulus. Six Sanaungulus species are suggested to be placed in Cantharidae incertae sedis, including S. electrum , S. franziskaeweissbachae , S. nalae , S. morellii , S. rosenzweigi and S. ruicheni (), due to their absence of antennal appendages in males. The gender identity for S. kirstenaeweissbachae and S. cuaroni originally defined as females are corrected into males, according to their pectinate antennae. Additionally, four new species, S. marginalis sp. nov., S. longicornis sp. nov., S. elongaticollis sp. nov., and S. undecimus sp. nov., are described and illustrated. These results will significantly complement and expand our knowledge on the Burmite cantharid diversity.

Open Access
In: Contributions to Zoology

Abstract

The decapod fauna of Chile’s intertidal shores in inner seas south of 40°S has relatively low diversity because of the presence of low-salinity waters due to river inputs and glacial smelts; nevertheless it is possible that the same decapods species are found as on the northern and central Chilean coast. The aim of the present study was to determine the spatial distribution patterns of lower intertidal decapods on Pelluhuín beach, a small beach south of Puerto Montt, northern Patagonia. Data were obtained by counting individuals from random quadrants in intertidal zones; to the obtained data the variance/mean ratio was applied to determine if the specimens have a random, aggregate or uniform distribution, which are associated with Poisson, negative binomial or positive binomial distributions respectively. Among four of the species observed, a uniform distribution (positive binomial) was reported, and one had an aggregated pattern (negative binomial). The sites correspond to rocky shores in semi-urban zones, and in a protected zone. Our results on the interpretative probabilistic models of aggregated distribution patterns agree with previously reported observations of decapods on the rocky shores of Northern and Central Chile, specifically in interpretative probabilistic models.

In: Animal Biology