Results 251 to 260 of about 2,292,613 (306)

Introduction to the Species Accounts

2018
The core of this book, offering qualitative and quantitative assessments of the migratory, breeding, wintering, and resident avifauna of the Northwest Bronx, New York City back to 1872. The present and historical statuses of 301 study area species and another 70 potential species are described in detail for the Bronx, for New York City, for Long Island,
  +5 more sources

Introduction to the species’ accounts

1998
The morphometrical information is presented per species or per species complex. The sequence of chapters follows Voous’ (1973) species order. The spelling of the American names of species follows Hayman et al. (1986). Each chapter starts with describing the breeding distribution and the present-day knowledge on morphometrical variation and systematics.
Meinte Engelmoer, Cees S. Roselaar
openaire   +1 more source

Introduction to the Species Problem

2016
Species concepts, or more generally, the species problem, are among the most debated issues in biology. Answers to the questions of what a species is, in what ways species really exist (if in fact they do) and how species can not only be defined but also recognized and delimited, belong at least as much, and some of them rather more, to the realm of ...
openaire   +1 more source

The ethics of species: an introduction

Choice Reviews Online, 2013
Ronald L. Sandler's The Ethics of Species: An Introduction offers rich and carefully constructed views about crucial issues bearing on his topic: the nature and value of species and their members; ...
openaire   +2 more sources

Species Introductions to Hawaii

1986
What determines whether species have the potential to invade new environments? And how should we evaluate community properties to determine whether a biological system is vulnerable to invasion? These questions are fundamental to a basic understanding of the structure of ecological communities.
M. P. Moulton, S. L. Pimm
openaire   +1 more source

Introduction to Species of Structures

1997
Introduction This chapter contains the basic concepts of the combinatorial theory of species of structures. It is an indispensable starting point for the developments and applications presented in the subsequent chapters. We begin with some general considerations on the notion of structure, everywhere present in mathematics and theoretical computer ...
openaire   +1 more source

Species Diversity: An Introduction

1992
Knowledge of the history of diversity through geological time is based on analysis of the fossil record. Because the fossil record gives only a very incomplete and highly biased view of the past history of life on earth, the reconstruction of that history has been, and continues to be, the subject of great debate.
openaire   +1 more source

Introduction to Species Accounts

2020
Brenda D. Smith, Michael A. Patten
openaire   +2 more sources