Results 111 to 120 of about 934,851 (280)
The Art (and Science) of Breeding Fish in Captivity [PDF]
, 2012 To reduce the impact of harvesting fish from natural habitats, RWU experts to teach aquarists to breed fish for exhibit ...
Mulvey, Jenna
core +1 more source
Semi‐automated assessment for NatureServe subnational conservation status ranks for state floras
Applications in Plant Sciences, EarlyView.Abstract Premise Conservation status ranks measure the potential risk of extinction for species at global, national, and subnational levels, taking into account rarity, threats, and trends. These assessments are largely incomplete due to funding and resource limitations.
Julia H. Prins, Joey Shaw
wiley +1 more source
Journal of Landscape Ecology, 2018 The paper demonstrates that the British Uplands have been influenced to a great extent by policy - for example, the planting of almost a million hectares of exotic conifers since the Second World War, and the extent of designated areas.
Bunce Robert G.H. +2 more
doaj +1 more source
Underwater Fish Detection with Weak Multi-Domain Supervision
, 2019 Given a sufficiently large training dataset, it is relatively easy to train a modern convolution neural network (CNN) as a required image classifier. However, for the task of fish classification and/or fish detection, if a CNN was trained to detect or ...
Bradley, Michael +5 more
core +1 more source
Inventory of the Decapod Crustaceans (Crayfishes and Shrimps) of Arkansas with a Discussion of Their Habitats [PDF]
, 1980 The freshwater decapod crustaceans of Arkansas presently consist of two species of shrimps and 51 taxa of crayfishes divided into 47 species and four subspecies. The shrimps are represented by Macrobranchium ohione and Palaemonetes kadiakensis.
Bouchard, Raymond W., Robison, Henry W.
core +2 more sources
The Anatomical Record, EarlyView.Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley +1 more source
ORGANIC FARMS AS REFUGES FOR SMALL MAMMAL BIODIVERSITY [PDF]
, 2009 Habitat fragmentation, the process by which relatively continuous habitats is broken into smaller pieces, occurs in natural systems but is to a high degree also human- induced through landscape use.
Hansen, Tine Sussi +2 more
core
The Anatomical Record, EarlyView.Abstract Dental microwear texture analysis (DMTA) is widely applied for inferring diet in vertebrates. Besides diet and ingesta properties, factors like wear stage and bite force may affect microwear formation, potentially leading to tooth position‐specific microwear patterns.
Daniela E. Winkler +2 more
wiley +1 more source
Species Diversity and Distribution of Amphibians in Tangjiahe National Nature Reserve, China
BiologyMountain ecosystems offer valuable opportunities to study species distribution and diversity along altitudinal gradients, particularly for amphibians.
Mingfu Li +6 more
doaj +1 more source
Biotopical distribution and seasonal activity of model species of the family Gnaphosidae (Araneae) in Zemen gorge (SW Bulgaria) [PDF]
, 2011 A faunistic study was carried out for three years in Zemen gorge (1984-1986). With the help of Barber-traps 675 gnaphosid spiders were caught in 4 localities, each with 2 habitats, meadow and forest.
Blagoev, Gergin A., Deltshev, Christo
core