Abstract:
:Web-spinning spiders that inhabit stream channels are considered specialists of aquatic ecosystems and are major consumers of emerging aquatic insects, while other spider taxa are more commonly found in riparian forests and as a result may consume more terrestrial insects. To determine if there was a difference in spider taxa abundance between riverine web-spinning spider assemblages within the stream channel and the assemblages 10 m into the riparian forest, we compared abundances for all web-spinning spiders along a headwater stream in El Yunque National Forest in northeast Puerto Rico. By using a nonmetric dimensional scaling (NMDS) abundance analysis we were able to see a clear separation of the two spider assemblages. The second objective of the study was to determine if aquatic insects contributed more to the diet of the spider assemblages closest to the stream channel and therefore stable isotope analyses of δ (15)N and δ (13)C for web-spinning spiders along with their possible prey were utilized. The results of the Bayesian mixing model (SIAR) however showed little difference in the diets of riverine (0 m), riparian (10 m) and upland (25 m) spiders. We found that aquatic insects made up ∼50% of the diet for web-spinning spiders collected at 0 m, 10 m, and 25 m from the stream. This study highlights the importance of aquatic insects as a food source for web-spinning spiders despite the taxonomic differences in assemblages at different distances from the stream.
journal_name
PeerJjournal_title
PeerJauthors
Kelly SP,Cuevas E,Ramírez Adoi
10.7717/peerj.1324subject
Has Abstractpub_date
2015-10-15 00:00:00pages
e1324issn
2167-8359pii
1324journal_volume
3pub_type
杂志文章相关文献
PeerJ文献大全abstract::Body condition is an important determinant of health, and its evaluation has practical applications for the conservation and management of mammals. We developed a noninvasive method that uses photographs to assess the body condition of free-ranging brown bears (Ursus arctos) in the Shiretoko Peninsula, Hokkaido, Japan...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9982
更新日期:2020-09-18 00:00:00
abstract:Aims:Periodontitis and psoriatic disease, including psoriasis (PS) and psoriatic arthritis (PsA), share the common risk factors and co-morbidities. However, the risk of periodontitis in patients with psoriatic disease still needs further investigation. This study was a nationwide population-based retrospective cohort s...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4064
更新日期:2017-11-16 00:00:00
abstract:Background:Foam cells (FCs) play crucial roles in the process of all stages of atherosclerosis. Smooth muscle cells (SMCs) and macrophages are the major sources of FCs. This study aimed to identify the common molecular mechanism in these two types of FCs. Methods:GSE28829, GSE43292, GSE68021, and GSE54666 were include...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.10336
更新日期:2020-11-17 00:00:00
abstract:Background:The meat quality of yellow feathered broilers is better than the quality of its production. Growth traits are important in the broiler industry. The exploration of regulation mechanisms for the skeletal muscle would help to increase the growth performance of chickens. At present, some progress has been made ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8950
更新日期:2020-04-15 00:00:00
abstract::The objectives of this experiment were to determine the effects of graded dietary lead (Pb) concentrations on body weight and Pb concentrations in blood, hair, soft tissues, and urine from pigs and to generate equations for estimating daily Pb intake. Sixteen barrows with initial body weight 36.3 kg (standard deviatio...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3936
更新日期:2017-11-01 00:00:00
abstract::Synechocystis gathered momentum in modelling studies and biotechnological applications owing to multiple factors like fast growth, ability to fix carbon dioxide into valuable products, and the relative ease of genetic manipulation. Synechocystis physiology and metabolism, and consequently, the productivity of Synechoc...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.5256
更新日期:2018-07-27 00:00:00
abstract::Permineralized peat from the central Transantarctic Mountains of Antarctica has provided a wealth of information on plant and fungal diversity in Middle Triassic high-latitude forest paleoecosystems; however, there are no reports as yet of algae or cyanobacteria. The first record of a fossil filamentous cyanobacterium...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8660
更新日期:2020-03-02 00:00:00
abstract:Background:The gray snapper (Lutjanus griseus) has a tropical and subtropical distribution. In much of its range this species represents one of the most important fishery resources because of its high quality meat and market value. Due to this, this species is vulnerable to overfishing, and population declines have bee...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8485
更新日期:2020-02-10 00:00:00
abstract::Tyrosine phosphorylation has emerged as an important regulator of plasma membrane-localized immune receptors activity. Here, we investigate the role of tyrosine phosphorylation in the regulation of rice XANTHOMONAS RESISTANCE 21 (XA21)-mediated immunity. We demonstrate that the juxtamembrane and kinase domain of Esche...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6074
更新日期:2018-12-11 00:00:00
abstract::Anthropogenic climate change is a significant global driver of species distribution change. Although many species have undergone range expansion at their poleward limits, data on several taxonomic groups are still lacking. A common method for studying range shifts is using species distribution models to evaluate curre...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4647
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:With their Pan-American distribution, long-nosed armadillos (genus Dasypus) constitute an understudied model for Neotropical biogeography. This genus currently comprises seven recognized species, the nine-banded armadillo (D. novemcinctus) having the widest distribution ranging from Northern Argentina to the...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3593
更新日期:2017-08-15 00:00:00
abstract::Molecular stress responses associated with coral diseases represent an under-studied area of cnidarian transcriptome investigations. Caribbean Yellow Band Disease (CYBD) is considered a disease of Symbiodinium within the tissues of the coral host Orbicella faveolata. There is a paucity of diagnostic tools to assist in...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1371
更新日期:2015-11-03 00:00:00
abstract::Understanding how structural and functional alterations of individual tissues impact on whole-joint function is challenging, particularly in humans where direct invasive experimentation is difficult. Finite element (FE) computational models produce quantitative predictions of the mechanical and physiological behaviour...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.4298
更新日期:2018-01-25 00:00:00
abstract::Okinawa is the largest and most populated island of the Ryukyu Archipelago in southern Japan and is renowned for its natural resources and beauty. Similar as to what has been happening in the rest of the country, Okinawa Island has been affected by an increasing amount of development and construction work. The trend h...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7520
更新日期:2019-09-06 00:00:00
abstract::With rising environmental concerns on potable water safety and eutrophication, increased media attention and tighter environmental regulations, managing animal waste in an environmentally responsible and economically feasible way can be a challenge. In this study, the possibility of using granular anammox process for ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.336
更新日期:2014-04-08 00:00:00
abstract::Pseudomonas syringae is the most widespread bacterial pathogen in plants. Several strains of P. syringae produce a phytotoxin, coronatine (COR), which acts as a jasmonic acid mimic and inhibits plant defense responses and contributes to disease symptom development. In this study, we found that COR inhibits early defen...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.34
更新日期:2013-02-12 00:00:00
abstract::Background. The ReproQuestionnaire (ReproQ) measures the client's experience with maternity care, following the WHO responsiveness model. In 2015, the ReproQ was appointed as national client experience questionnaire and will be added to the national list of indicators in maternity care. For using the ReproQ in quality...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.2092
更新日期:2016-07-13 00:00:00
abstract::Metoposaurids are representatives of the extinct amphibian clade Temnospondyli, found on almost every continent exclusively in the Late Triassic deposits. Osteohistologically, it is one of the best-known temnospondyl groups, analyzed with a wide spectrum of methods, such as morphology, morphometry, bone histology or c...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9868
更新日期:2020-09-08 00:00:00
abstract:Background:In arid environments, plant primary productivity is generally low and highly variable both spatially and temporally. Resources are not evenly distributed in space and time (e.g., soil nutrients, water), and depend on global (El Niño/ Southern Oscillation) and local climate parameters. The launch of the Senti...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9209
更新日期:2020-05-26 00:00:00
abstract::In this paper, we propose a method for automatically detecting the times during which game players exhibit specific behavior, such as when players commonly show excitement, concentration, immersion, and surprise. The proposed method detects such outlying behavior based on the game players' characteristics. These chara...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1502
更新日期:2015-12-10 00:00:00
abstract:Background:Despite clinical trials with antioxidant supplementation, few studies have been conducted to evaluate the nutritional status of antioxidant vitamins and minerals, and none have reported on the status of these serum antioxidants associated with the dietary intake of antioxidants by non-alcoholic fatty liver d...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.9838
更新日期:2020-09-17 00:00:00
abstract::In recent years, a massive mortality event has killed millions of sea stars, of many different species, along the Pacific coast of North America. This disease event, known as 'sea star wasting disease' (SSWD), is linked to viral infection. In one affected sea star (Pisaster ochraceus), previous work had identified tha...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.1876
更新日期:2016-03-29 00:00:00
abstract::The loss of roost sites is one of the major drivers of the worldwide decline in bat populations and roost site preferences, either natural or artificially provided, are not well known for African bat species specifically. In this study we focus on the preference for different artificial roost sites by insectivorous ba...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6954
更新日期:2019-05-22 00:00:00
abstract:Background:The body of literature regarding the associations between physical activity and psychological problems lacks consensus. Moreover, the role of gender has been scarcely investigated. The present study sought to fill the gap in the data by examining the associations, if any, between moderate-to-vigorous physica...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8775
更新日期:2020-03-25 00:00:00
abstract::Coastal habitats in Chile are hypothesized to support a number of diadromous fish species. The objective of this study was to document migratory life histories of native galaxiids and introduced salmonids from a wide latitudinal range in Chilean Patagonia (39-48°S). Otolith microchemistry data were analysed using a re...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.6149
更新日期:2019-01-03 00:00:00
abstract:Background and Aim:Water is an increasingly scarce resource while some crops, such as paddy rice, require large amounts of water to maintain grain production. A better understanding of rice drought adaptation and tolerance mechanisms could help to reduce this problem. There is evidence of a possible role of root-associ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7463
更新日期:2019-09-11 00:00:00
abstract::Microbial transglutaminase (mTG) was used as a crosslinking agent in the preparation of gelatin sponges. The physical properties of the materials were evaluated by measuring their material porosity, water absorption, and elastic modulus. The stability of the sponges were assessed via hydrolysis and enzymolysis. To stu...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.3665
更新日期:2017-08-09 00:00:00
abstract::Purple Broccoli (Brassica oleracea L. var italica) attracts growing attention as a functional food. Its purple coloration is due to high anthocyanin amounts. Light represents a critical parameter affecting anthocyanins biosynthesis. In this study, 'Purple Broccoli', a light-responding pigmentation cultivar, was assess...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.8870
更新日期:2020-05-05 00:00:00
abstract::The orientation of vascular canals in primary bone may reflect differences in growth rate and/or adaptation to biomechanical loads. Previous studies link specific canal orientations to bone growth rates, but results between different taxa are contradictory. Circumferential vascular canals (forming laminar bone) have b...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7616
更新日期:2019-09-25 00:00:00
abstract::Flatfish undergo extreme morphological development and settle to a benthic in the adult stage, and are likely to be more susceptible to environmental stress. Heat shock proteins 70 (hsp70) are involved in embryonic development and stress response in metazoan animals. However, the evolutionary history and functions of ...
journal_title:PeerJ
pub_type: 杂志文章
doi:10.7717/peerj.7781
更新日期:2019-11-11 00:00:00