Results 71 to 80 of about 83,949 (294)

Surveying abundance and stand type associations of Formica aquilonia and F. lugubris (Hymenoptera: Formicidae) nest mounds over an extensive area: Trialing a novel method

European Journal of Entomology, 2012
Red wood ants are ecologically important members of woodland communities, and some species are of conservation concern. They occur commonly only in certain habitats in Britain, but there is limited knowledge of their numbers and distribution.
Kerry M. BORKIN, Ron W. SUMMERS, Len THOMAS   +2 more
doaj   +1 more source

Guidelines for Line Transect Sampling of Biological Populations

The Journal of Wildlife Management, 1979
Practical field procedures for conducting line transect surveys to estimate the size or density of biological populations are presented and discussed. Assumptions required for valid line transect surveys are specified. We emphasize that it is crucial to conduct observations along straight transects and obtain accurate measurements of distances and ...
David R. Anderson, Jeffrey L. Laake, Bradford R. Crain, Kenneth P. Burnham   +3 more
openaire   +2 more sources

Spatial metrics in fire ecology: seeking consistency amidst complexity

Biological Reviews, EarlyView.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey, Geoffrey J. Cary, Teigan Cremona, Hugh F. Davies, Brett P. Murphy, Sam C. Banks   +5 more
wiley   +1 more source

Optimizing line-plot size for personal laser scanning: modeling distance-dependent tree detection probability along transects

iForest - Biogeosciences and Forestry
Personal laser scanning (PLS) systems are gaining popularity in forest inventory research and practice. They are primarily utilized on circular or compact rectangular sample plots to mitigate potential instrument drift and enhance tree detection rates ...
Ritter T, Tockner A, Krassnitzer R, Witzmann S, Gollob C, Nothdurft A   +5 more
doaj   +1 more source

Guidelines for the monitoring of Lucanus cervus [PDF]

, 2017
Lucanus cervus is one of the most charismatic saproxylic beetles, widely distributed in Europe. The species is typical of mature deciduous forests, especially oak woodlands. Loss and fragmentation of suitable habitats is one of the major threats for this
Audisio, P., Bardiani, M., Campanaro, A., Carpaneto, G. M., Chiari, S., Maurizi, E., Tini, M., Toni, I., Zauli, A.   +8 more
core  

Grooved Surface of the Obturator Internus Muscle With Two Distinct Adjacent Parts

Clinical Anatomy, EarlyView.
ABSTRACT The specific anatomical features of the obturator internus, particularly those of its medial surface, remain insufficiently characterized. This study investigated the morphology of the obturator internus muscle by focusing on the shape of its medial surface and potential age‐related changes.
Satoru Muro, Junichi Tsuchiya, Takuya Ibara, Akimoto Nimura, Keiichi Akita   +4 more
wiley   +1 more source

Results of 2013 Macroalgal Monitoring and Recommendations for Future Monitoring in Great Bay Estuary, New Hampshire [PDF]

, 2014
The recently designated nitrogen impairment and reports of elevated macroalgal growth in Great Bay Estuary indicate ecological imbalance. However, reversing the Estuary’s ecological decline will require commitment of considerable resources and is ...
Burdick, David M., Cianciola, Elisabeth
core   +3 more sources

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

JENIS LICHENES DI KAWASAN GUGOP PULO BREUH KECAMATAN PULO ACEH KABUPATEN ACEH BESAR

Biotik: Jurnal Ilmiah Biologi Teknologi dan Kependidikan, 2018
The purpose of this research is to know the type of Lichens in the Gugop Pulo Breuh area, Pulo Aceh District, Aceh Besar. The subjects of this study are all types of Lichens found in the Gugop Pulo Breuh area, Pulo Aceh District, Aceh Besar.
Mulyadi Mulyadi
doaj   +1 more source

Habitat complexity and prey composition shape an apex predator's habitat use across contrasting landscapes

Ecography, EarlyView.
The spatial ecology of stalk‐and‐ambush predators like the Eurasian lynx Lynx lynx depends on prey availability and environmental features, yet the relative roles of these factors remain unclear at large spatial scales. In this study, we analysed lynx habitat use across central and southern Finland using snow‐track data from the Wildlife Triangle ...
Francesca Malcangi, Caio Graco‐Roza, Andreas Lindén, Janne Sundell, John Loehr   +4 more
wiley   +1 more source