Results 61 to 70 of about 10,179 (217)
A model‐based assessment of anthropogenic disturbance on lotic macroinvertebrate assemblages
Abstract Traditionally, the effects of anthropogenic disturbance on biological assemblages are elucidated by comparing an assemblage observed at a site to one that represents a minimally disturbed state. Unfortunately, defining a minimally disturbed state is extremely challenging because of the extent of human disturbance.
Darin A. Kopp +6 more
wiley +1 more source
A globally influential area‐condition metric is a poor proxy for invertebrate biodiversity
Our results highlight the need to incorporate factors beyond habitat type and condition into site evaluations, and to complement metric use with species‐based surveys. Abstract There is increasing demand for standardised, easy‐to‐use metrics to assess progress towards achieving biodiversity targets and the effectiveness of ecological compensation ...
Natalie E. Duffus +9 more
wiley +1 more source
ABSTRACT The astonishing biological diversity found in Californian kelp forests requires efficient and robust monitoring tools to better understand ecological trends and mitigate against loss or disruption of ecosystem services due to human pressure and climate changes.
Giulia Maiello +5 more
wiley +1 more source
On the ground pattern of Annelida
AbstractAnnelida, traditionally divided into Polychaeta and Clitellata, are characterized by serial division of their body into numerous similar structures, the segments. In addition, there is a non-segmental part at the front end, the prostomium, and one at the back, the pygidium. New segments develop in a prepygidial proliferation zone.
openaire +2 more sources
Sabellaria alcocki Gravier, 1906, described for the Indian Ocean, should not be present in the Mediterranean area. Though S. spinulosa alcocki, a Mediterranean variety, can be well-distinguished from S.
Marco Lezzi +3 more
doaj +1 more source
Significance of chaetal arrangement for maldanid systematics (Annelida, Maldanidae)
Maldanids are usually divided into several subfamilies: Euclymeninae, Lumbriclymeninae, Maldaninae, Nicomachinae, Rhodininae, Clymenurinae, Notoproctinae, and Boguinae. The taxonomy of maldanids and the delimination of these taxa are mainly based on head
Harald Hausen, Christoph Bleidorn
doaj +1 more source
Morphological characters for identification of Cognettia species are presented both as a dichotomous key and in table form. Focus is on non-sexual characters, as many species reproduce mainly asexually, and sexually mature individuals can be rare.
Svante Martinsson
doaj +1 more source
Two species of sea turtles, the loggerhead (Caretta caretta) and the green turtle (Chelonia mydas), use Turkey's Mediterranean and rarely Aegean Sea coasts for nesting and foraging.
Düşen S. +3 more
doaj +1 more source
Seasonal variations of diversity and abundance of the benthic Annelida in coastal sediments of the southern Caspian Sea (Mazandaran-Sari) [PDF]
In order to investigate seasonal variation of diversity and abundance of Annelida, seasonal sediment sampling was performed on 10 stations with depths of 1, 5, 10 and 20 meters in the coastal area of Sari, Iran in 2015-2016.
Maryam Akhoundian +2 more
doaj
Serpúlidos (Annelida, Serpulidae) colectados en las campañas oceanográficas de Fauna Ibérica
Se han identificado las colecciones de poliquetos de la familia Serpulidae (Annelida) recolectados en las campañas oceanográficas de Fauna Ibérica, las cuales se encuentran depositadas en el Museo Nacional de Ciencias Naturales de Madrid (MNCN), en el ...
María José Martínez +1 more
doaj +1 more source

