Results for “pH”

neoteny

Form of paedomorphism characterised by retention of juvenile features in an adult individual via slowed or delayed maturation.

neotropical

Of or relating to a zoogeographical region consisting of South America plus the portion of North America lying south of the tropic of Cancer.

Used in 65 profiles

non-native

Used in reference to a species occurring, living, or growing in a region outside its natural geographic range; non-indigenous.

Used in 28 profiles

oil globule

Small, spherical droplet of oil found within the yolk sac of fish larvae. There may be one or more present and the size, positioning, and colour are also variable meaning they can be useful in terms of taxon identification.

orbicular

Circular or spherical in shape.

palaearctic

Of, relating to, or being a biogeographic region or subregion covering Europe, coastal northwest Africa, and Asia north of the Himalaya Mountains.

palatine

In morphology, a paired lateral bone above the mouth lying between the vomer and maxillary; the presence or absence of teeth on the palatine is a defining character in the classification of some fishes. Also known as autopalatine.

Used in 12 profiles

Palghat Gap

Also known as the 'Palakkad Gap', a low mountain pass representing the major break in the Western Ghats mountain range. The Nilgiri Hills rise to around 1100 m AMSL north of the gap and the Anaimalai Hills approximately 2000 m AMSL to the south, with average elevation within the gap 144 m AMSL. The gap has been shown to represent a biogeographic barrier restricting gene flow between populations of numerous species including Indian elephant and various birds.

Used in 1 profile

population

Group of individuals of a given taxon occupying a particular geographic area or specified habitat.

Used in 487 profiles

progenesis

Form of paedomorphism characterised by retention of juvenile features in an adult individual via accelerated maturation.

protandry

Form of sequential hermaphroditism in which male offspring become female at some point during their life cycle.

protogyny

Form of sequential hermaphroditism in which female offspring become male at some point during their life cycle.

red algae

Any member of the division Rhodophyta.

resource partitioning

Form of niche differentiation by which two species partition (divide) a resource based on behavioral or morphological variation in order to ensure their mutual survival by reducing competition.

Used in 11 profiles

ridge

In morphology, an elongate, raised strip, margin or border on a bone, tooth, tissue membrane, etc.

Used in 60 profiles

river basin

Total geographic area drained by a river plus all its tributaries.

Used in 338 profiles

runoff

Rainwater entering a water body as surface water rather than entering the water table or evaporating into the atmosphere.

Used in 9 profiles

sibling species

One of two or more very closely-related species that are reproductively isolated from one another but almost indistinguishable in morphologically and/or behaviourally. May occur sympatrically and even interbreed but are incapable of producing fertile hybrid offspring. Sometimes referred to as cryptic species.

Used in 3 profiles

sister group

In cladistics, a monophyletic group more closely related to the group in question than any other, i.e., the closest outgroup. Sister groups normally share an immediate common ancestor.

Used in 212 profiles